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  • CTFs

CTFs

  • SECCON CTF

    Official URL
    Total events: 28
    Avg weight: 47.20

  • Hack The Box CTF

    Official URL
    Total events: 24
    Avg weight: 26.26

    Hack The Box CTF's

  • Insomni'hack

    Official URL
    Total events: 21
    Avg weight: 37.05

  • CTF Internacional MetaRed

    Official URL
    Total events: 20
    Avg weight: 18.32

    CTF Internacional MetaRed 2025

    - Academic
    - 3 stages Jeopardy CTF Championship
    - Awards ceremony / Ceremonia de premiación: to be schedulled.
    - The reg...

  • UCSB iCTF

    no logo

    Official URL
    Total events: 18
    Avg weight: 46.30

    The UCSB International Capture The Flag (also known as the iCTF) is a distributed, wide-area security exercise, whose goal is to test the security skills of the participants....

  • HITCON CTF

    Official URL
    Total events: 18
    Avg weight: 68.03

  • 0CTF

    Official URL
    Total events: 18
    Avg weight: 77.41

    Open for everyone. Hope all of you can enjoy it:)

  • Hardware CTF

    Official URL
    Total events: 18
    Avg weight: 0.00

    Back in 2017, Quarkslab created a hardware-oriented CTF and in 2025, Ledger joined the party.
    Events are co-created and co-organized by both teams, with challenges renew...

  • Midnight Sun CTF

    Official URL
    Total events: 17
    Avg weight: 53.97

    Midnight Sun CTF is HackingForSoju's annual CTF event to promote competition around the world.

    On site finals in Stockholm, Sweden during the peak summer period in J...

  • RuCTF Finals

    Official URL
    Total events: 16
    Avg weight: 30.63

    RuCTF is annual open all-Russian intercollegiate competition and conference on information security.
    On-site finals of RuCTF (https://ctftime.org/ctf/6) in Yekaterinburg...

  • HackIM

    Official URL
    Total events: 16
    Avg weight: 24.13

  • m0leCon CTF

    Official URL
    Total events: 16
    Avg weight: 52.06

    m0leCon CTF is a jeopardy-style CTF that takes place during the m0leCon conference at the Politecnico di Torino. The 2025/2026 edition will feature an online teaser CTF on Oc...

  • DEF CON CTF Qualifier

    Official URL
    Total events: 15
    Avg weight: 78.60

    Online qualifier for the Vegas finals.

    Binjitsu by ddtek (... — 2012)
    Legitimate Business Syndicate (2013 — 2017)<...

  • DEF CON CTF

    Official URL
    Total events: 15
    Avg weight: 78.54

    Vegas finals.

    Binjitsu by ddtek (... — 2012)
    Legitimate Business Syndicate (2013 — 2017)

  • Hack.lu CTF

    Official URL
    Total events: 15
    Avg weight: 81.34

  • PlaidCTF

    Official URL
    Total events: 15
    Avg weight: 89.26

    Plaid CTF :: Hosted by Plaid Parliament of Pwning

  • CSAW CTF Qualification Round

    Official URL
    Total events: 15
    Avg weight: 32.52

    CSAW CTF is a entry-level CTF, designed for undergraduate students who are trying to break into security. Challenges are specifically designed to point students in directions...

  • CSAW CTF Final Round

    Official URL
    Total events: 15
    Avg weight: 26.35

    This one is harder. :)

  • VolgaCTF Qualifier

    Official URL
    Total events: 14
    Avg weight: 26.25

    VolgaCTF is an international inter-university cybersecurity competition organised by a group of IT enthusiasts based in Samara, Russia.

    The competition consists of 2 ...

  • ASIS CTF Quals

    Official URL
    Total events: 14
    Avg weight: 61.77

    The ASIS CTF Quals is a well-established, annual cybersecurity competition organized by the ASIS Team, an academic and competitive hacking group originating from Iran. Known ...

  • Defcamp CTF Qualification

    Official URL
    Total events: 14
    Avg weight: 28.69

  • Securinets CTF

    Official URL
    Total events: 14
    Avg weight: 45.88

    Securinets Quals CTF is an online jeopardy style CTF organized by Tunisian cybersecurity enthusiasts.
    Top 15 teams are qualified to play the finals onsite in INSAT durin...

  • Trend Micro CTF - Raimund Genes Cup

    Official URL
    Total events: 14
    Avg weight: 22.42

    Trend Micro CTF - Raimund Genes Cup is a capture the flag competition hosted by Trend Micro, a global leader in cybersecurity with a mission to make the world safe for exchan...

  • Google Capture The Flag

    Official URL
    Total events: 14
    Avg weight: 73.69

    Annual Capture The Flag hosted by the Google Security Team.

  • M*CTF

    Official URL
    Total events: 14
    Avg weight: 31.89

  • CTFZone

    Official URL
    Total events: 14
    Avg weight: 64.66

    Make CTF great again.

  • ISITDTU CTF

    Official URL
    Total events: 14
    Avg weight: 30.06

  • Codegate CTF Preliminary

    Official URL
    Total events: 13
    Avg weight: 47.54

  • RuCTF

    Official URL
    Total events: 13
    Avg weight: 70.81

    International online challenge in information security. Previously known as RuCTFE.

    Good choice to start playing A/D, because we're providing vulnbox in our cloud, s...

  • ASIS CTF Finals

    Official URL
    Total events: 13
    Avg weight: 67.99

    The ASIS CTF Finals is the prestigious culminating event of the annual ASIS CTF season, organized by the ASIS Team from Iran. Serving as the decisive stage for teams that tri...

  • NorthSec CTF

    Official URL
    Total events: 12
    Avg weight: 30.38

    NorthSec is the world's biggest on-site CTF, opposes 75 teams of 8 people trying to obtain the most points by capturing flags during an intense 48 hour-long competition (Fri-...

  • BackdoorCTF

    Official URL
    Total events: 12
    Avg weight: 42.37

    BackdoorCTF is an online jeopardy style event.

    Discord invite for the competition is https://discord.gg/Khq4xpTG9D

  • VolgaCTF Final

    Official URL
    Total events: 12
    Avg weight: 36.24

    VolgaCTF is an international inter-university cybersecurity competition organised by a group of IT enthusiasts based in Samara, Russia.

    The competition consists of 2 ...

  • Dragon CTF

    Total events: 12
    Avg weight: 55.20

  • Just Hacking

    Official URL
    Total events: 12
    Avg weight: 33.10

  • AlpacaHack

    Official URL
    Total events: 12
    Avg weight: 0.00

    AlpacaHack is a new CTF platform for individual competitions. AlpacaHack continuously hosts individual CTFs, and after each CTF ends, the challenges are archived on the platf...

  • Dreamhack CTF

    Official URL
    Total events: 12
    Avg weight: 0.00

    Brought to you by Dreamhack Team, based on Theori, Korea.
    Dreamhack CTF is held twice a month - Div.1 at the beginning of the month, and Div.2 at the end of the month.

  • Codegate CTF Finals

    Official URL
    Total events: 11
    Avg weight: 59.17

  • bi0sCTF

    Official URL
    Total events: 10
    Avg weight: 62.04

    bi0sCTF is brought to you by team bi0s of Amrita Vishwa Vidyapeetham, Amritapuri.

    Prizes:
    1st place - $1500
    2nd place - $1000
    3rd place - $500

    <...

  • FAUST CTF

    no logo

    Official URL
    Total events: 10
    Avg weight: 68.81

    FAUST CTF is an online attack-defense CTF organized by FAUST, the CTF team of Friedrich-Alexander University Erlangen-Nürnberg

  • hxp CTF

    Official URL
    Total events: 10
    Avg weight: 71.48

    A yearly(?) CTF organized by hxp.

    See CTF archive: https://ctf.hxp.io/

  • RCTF

    Official URL
    Total events: 10
    Avg weight: 49.04

  • SunshineCTF

    Official URL
    Total events: 10
    Avg weight: 29.74

  • MetaCTF

    Official URL
    Total events: 10
    Avg weight: 30.05

    MetaCTF is a cyber skills platform that helps companies assess, recruit, retain, and upskill their cyber talent. We run custom cybersecurity competitions and create hands-on ...

  • Haruulzangi CTF

    Official URL
    Total events: 10
    Avg weight: 23.75

    The Biggest CTF of Mongolia, The one which everyone waits for the game. Players include Mongolian high school pupils, security engineers, programmers, IT engineers, enthusias...

  • HITB CTF Amsterdam

    Official URL
    Total events: 9
    Avg weight: 29.17

    What: Jeopardy style CTF hacking competition
    When: April 12th & 13th 2018
    Where: On site at HITB2018AMS @ NH Krasnapolsky
    Who: Max of 24 teams with up to 3 pla...

  • GreHack CTF

    Official URL
    Total events: 9
    Avg weight: 24.25

    GreHack CTF is onsite jeopardy style CTF held each year at the occasion of GreHack Conference.

  • C3CTF

    Official URL
    Total events: 9
    Avg weight: 67.86

  • UIUCTF

    Official URL
    Total events: 9
    Avg weight: 43.67

    CTF hosted by the Special interest Group for Information
    Security (SIGPwny) at the University of Illinois Urbana-Champaign.

  • Pragyan CTF

    no logo

    Official URL
    Total events: 9
    Avg weight: 14.89

  • ångstromCTF

    Official URL
    Total events: 9
    Avg weight: 58.33

    Geared primarily towards high school students but with a very wide range of challenge difficulty.

  • TAMUctf

    Official URL
    Total events: 9
    Avg weight: 42.66

    CTF organized by students from Texas A&M University

  • CyberSecurityRumble CTF

    Official URL
    Total events: 9
    Avg weight: 50.49

    The CSR will be back in 2021.

    Again we'll have fun tasks and awesome prices.

    Details will follow.

  • RITSEC CTF

    Official URL
    Total events: 9
    Avg weight: 29.85

    RITSEC CTF is a cybersecurity Capture The Flag competition that features categories such as PWN, Cryptography, Reversing, Forensics, Web, and Misc. We welcome beginners and m...

  • Hackfest CTF

    Official URL
    Total events: 9
    Avg weight: 25.00

    The Hackfest CTF is a (currently remote, usually on-site) event that offers multiple CTFs in one night, ranging various levels of difficulty.
    - 400+ players
    - Over...

  • PlayCyber

    Official URL
    Total events: 9
    Avg weight: 0.00

    PlayCyber delivers epic Cyber Games and Esports for fans, sponsors and players.

    We are building a stronger and more diverse community of cybersecurity professionals ...

  • Nuit du Hack CTF Quals

    Official URL
    Total events: 8
    Avg weight: 41.19

  • ENOWARS

    Official URL
    Total events: 8
    Avg weight: 70.56

    Fun Attack/Defense Competitions

  • h4ckc0n

    Official URL
    Total events: 8
    Avg weight: 19.90

    HackCon is a jeopardy style competition that includes challenges in the domain of Reverse Engineering, Web Exploitation, Clever Scripting, Automation and general "hacks".

    ...

  • UConn CyberSEED

    no logo

    Official URL
    Total events: 8
    Avg weight: 5.00

  • Defcamp CTF Finals

    Official URL
    Total events: 8
    Avg weight: 20.40

  • AltayCTF

    Official URL
    Total events: 8
    Avg weight: 25.00

    CTF from the Altai region

  • EKOPARTY CTF

    Official URL
    Total events: 8
    Avg weight: 35.53

  • WhiteHat Grand Prix

    Official URL
    Total events: 8
    Avg weight: 18.48

    WhiteHat Grand Prix, a Capture The Flag competition, is held annually by WhiteHatVN.com, leading cyber security forum in Vietnam.

  • TJCTF

    Official URL
    Total events: 8
    Avg weight: 37.19

  • N1CTF

    Total events: 8
    Avg weight: 71.66

    N1CTF is a jeopardy style CTF held by team Nu1L.

  • Block CTF

    Official URL
    Total events: 8
    Avg weight: 40.12

    Annual CTF organized by Block. Puzzles are on the easier end of college level CTFs.

  • p4ctf

    Official URL
    Total events: 8
    Avg weight: 45.05

  • BSidesSF CTF

    no logo

    Official URL
    Total events: 8
    Avg weight: 27.24

    The BSidesSF CTF will be kicking off at 4:00pm PDT 04/25/2025 and will run until 4:00pm PDT 04/27/2025. You can register to play at https://ctf.bsidessf.net/register. We have...

  • Real World CTF

    Official URL
    Total events: 8
    Avg weight: 57.20

    The Real World CTF 2018, which is in jeopardy style, has an
    on-line qualification round followed by an on-site, hands-on
    final round in China where all challenges a...

  • Crypto CTF

    Official URL
    Total events: 8
    Avg weight: 58.96

    Crypto CTF is a specialized, annual competition organized by the ASIS Team from Iran, explicitly designed to address the community's demand for high-quality, pure cryptograph...

  • WMCTF

    Official URL
    Total events: 8
    Avg weight: 44.12

    WMCTF is a jeopardy style CTF held by team W&M.

  • Ugra CTF

    Official URL
    Total events: 8
    Avg weight: 31.84

    Ugra CTF is an open academic information security competition for beginners.

    This CTF is organized by [team Team] in a joint effort with Ugra Research Institute of In...

  • CyberSci

    Official URL
    Total events: 8
    Avg weight: 25.00

    CyberSci is Canada's national Cyber Security Challenge for university and college students.
    - Think you've got an elite team of students? Come and prove it. Compete a...

  • Blackhat MEA CTF

    Official URL
    Total events: 8
    Avg weight: 20.36

    Black Hat MEA was the largest infosec event held anywhere in the world in 2021, The conference co-organised by SAFCSP and Informa Tech.

  • HSCTF

    Official URL
    Total events: 7
    Avg weight: 36.26

    The first ever CTF run entirely by high schoolers!

    Infra sponsored by goo.gle/ctfsponsorship!

  • TU CTF

    Official URL
    Total events: 7
    Avg weight: 26.32

  • M*CTF online

    Official URL
    Total events: 7
    Avg weight: 38.15

    Qualifying tournament before the final competition M*CTF among universities of Moscow city. Any team can take part, the 10 strongest teams of various Moscow universities pass...

  • THCon CTF

    Official URL
    Total events: 7
    Avg weight: 25.33

    The Toulouse Hacking Convention is a french cybersecurity event, that brings together more than 350 participants each year, from various backgrounds : students, professionals...

  • BITSCTF

    Official URL
    Total events: 7
    Avg weight: 21.54

    BITSCTF 2025 is a jeopardy-style CTF competition organized by BITSkrieg from BITS Pilani, Goa Campus, India. This flagship event of our annual tech festival, Quark, caters to...

  • ph0wn

    Official URL
    Total events: 7
    Avg weight: 21.50

    Ph0wn is a jeopardy style CTF dedicated to smart devices (IoT, embedded systems, smart phones…). Example: challenges on connected weather station, IP webcams, smart phones et...

  • UTCTF 2025

    Official URL
    Total events: 7
    Avg weight: 40.99

    Online, jeopardy-style CTF run by the Information & Systems Security Society at the University of Texas at Austin. Free to play, with prizes offered to University teams. Open...

  • X-MAS CTF

    Official URL
    Total events: 7
    Avg weight: 24.29

    X-MAS CTF is the competition organized by HTsP with the purpose of learning and having fun while solving jeopardy-style challenges.

    We welcome both beginners and expe...

  • b01lers CTF

    Official URL
    Total events: 7
    Avg weight: 36.66

    CTF Name: b01lers CTF
    Event Logo: Attached
    Start Time: 00:00 UTC March 14
    End Time: 00:00 UTC March 16
    Official Site URL: b01lersc.tf
    Event Format: J...

  • Arab Security Cyber Wargames

    Official URL
    Total events: 7
    Avg weight: 21.67

    Arab Security Cyber Wargames Championship was held for the first time in the Middle East at The Nile Ritz-Carlton, Cairo, Egypt. It’s hosted by Arab Security Consultants and ...

  • justCTF

    Official URL
    Total events: 7
    Avg weight: 56.55

    CTF event organized by justCatTheFish team.

    We are organizing justCTF 2025 this year, an online jeopardy competition that will be hosted on Saturday, 2nd of August 06...

  • Space Security Challenge

    Official URL
    Total events: 7
    Avg weight: 30.21

    The US Air Force, along with the Defense Digital Service, is challenging hackers from around the world to focus their skills and creativity to help achieve more secure operat...

  • HackPack CTF

    Official URL
    Total events: 7
    Avg weight: 33.91

    HackPack CTF is a security competition that is part of two security courses at NCSU: CSC-405 Computer Security and CSC-591 Systems Attacks and Defenses. The target audience i...

  • HKCERT CTF

    Official URL
    Total events: 7
    Avg weight: 52.29

    Arouse the cyber security skills and awareness of the industry and students. And encourage participants’ problem solving with teamwork, creative thinking and cyber security s...

  • LakeCTF

    Official URL
    Total events: 7
    Avg weight: 37.89

    LakeCTF is the first CTF hosted by polygl0ts (and friends), the CTF team of EPFL.

    For the occasion of the 20th anniversary of the IC Faculty at EPFL we organize a CTF...

  • PHD CTF Finals

    Official URL
    Total events: 6
    Avg weight: 46.00

    All tasks are available here: http://ctfarchive.phdays.com/

  • Nuit du Hack CTF Finals

    Official URL
    Total events: 6
    Avg weight: 22.44

  • Ghost in the Shellcode

    Official URL
    Total events: 6
    Avg weight: 65.00

  • picoCTF

    Official URL
    Total events: 6
    Avg weight: 0.00

    Highly recommended as anyone's first CTF, picoCTF is a traditional challenge-based competition with a two-week annual competition period that rolls into a year-round accessib...

  • STEM CTF

    Official URL
    Total events: 6
    Avg weight: 21.66

    In support of STEM outreach, MITRE hosts an annual Capture the Flag (CTF) competition. High school and undergraduate college students have the opportunity to compete in cyber...

  • TokyoWesterns/MMA CTF

    Total events: 6
    Avg weight: 78.06

  • Pwn2Win CTF

    Official URL
    Total events: 6
    Avg weight: 56.43

    Brazilian Thematic CTF, organized by Epic Leet Team members.

    Most original and multidisciplinary competition in the world!

  • Security Fest

    Official URL
    Total events: 6
    Avg weight: 36.17

    Security Fest is an annual IT-security conference in Gothenburg, Sweden.

  • DiceCTF Finals

    Official URL
    Total events: 6
    Avg weight: 36.15

    For more information about DiceCTF, visit: https://ctf.dicega.ng

    Join our Discord server: https://discord.gg/dicectf

  • TSG CTF

    Official URL
    Total events: 6
    Avg weight: 31.99

    TSG is the official computer society of The University of Tokyo, and also the name of the CTF team organized by its members.
    Acquiring chance of organizing two domestic...

  • BCACTF

    Official URL
    Total events: 6
    Avg weight: 46.41

    BCACTF is a jeopardy-style competition hosted by the CTF Club at the Bergen County Academies.

  • D^3CTF

    Official URL
    Total events: 6
    Avg weight: 42.76

    Organized by @Vidar, @CNSS, @L-Team, the 1st D^3CTF is coming!

    Our teams have hosted the HCTF and LCTF for years, and in 2019 we decided to co-host this brand new CTF...

  • saarCTF

    Official URL
    Total events: 6
    Avg weight: 75.00

    saarCTF is an annual Attack-Defense CTF competition organized by saarsec, the CTF team of Saarland University.

  • DamCTF

    Official URL
    Total events: 6
    Avg weight: 39.81

    A college CTF hosted by the OSU Security Club.

  • DawgCTF

    Official URL
    Total events: 6
    Avg weight: 45.10

    UMBC's annual CTF. Beginner level CTF aimed at college students, but open to all!

  • UMDCTF

    Official URL
    Total events: 6
    Avg weight: 51.43

    UMDCTF the annual CTF hosted by the University of Maryland Cybersecurity Club!

  • DownUnderCTF

    Official URL
    Total events: 6
    Avg weight: 59.67

    DownUnderCTF is the largest online Australia and Aotearoa (NZ) run Capture The Flag (CTF) competition. This CTF aims to up-skill the next generation of Cyber Security Profess...

  • DEADFACE CTF

    Official URL
    Total events: 6
    Avg weight: 30.69

    DEADFACE CTF features jeopardy-style challenges and is hosted by Cyber Hacktics and veterans of the United States Air Force in support of National Cyber Security Awareness Mo...

  • COMPFEST CTF

    Official URL
    Total events: 6
    Avg weight: 50.77

    A CTF event organized by Computer Science students of Universitas Indonesia. The main event is aimed for Indonesian citizens, but everyone is welcome to participate in the mi...

  • 0xL4ugh CTF

    Official URL
    Total events: 6
    Avg weight: 25.41

    Format: Jeopardy

    Official URL: https://0xl4ugh.com/

    Event organizers :
    0xL4ugh Team

  • UMassCTF

    Official URL
    Total events: 6
    Avg weight: 43.03

    UMass Amherst's first public CTF, mainly targeted towards university students.

  • Winja CTF

    Official URL
    Total events: 6
    Avg weight: 12.97

    Registration link: https://ctf.winja.site/register

    Sponsor:
    Salesforce

    Challenge Categories:
    Web3
    Source Code Review
    Web
    Forensics

  • ImaginaryCTF

    Official URL
    Total events: 6
    Avg weight: 51.02

    We run daily CTF challenges on discord and our website with rounds which last a month each. We accept individuals (solo teams) as well as teams.

    For any questions or ...

  • Russian CTF Cup

    Official URL
    Total events: 6
    Avg weight: 29.75

    02-03 November 2025
    On-line
    Official URL: https://ctfcup.ru
    Event organizers: ACISO

  • HackDayCTF

    Official URL
    Total events: 6
    Avg weight: 20.29

    The HackDay challenge is a French cybersecurity competition for graduate students.

    The 25 teams selected during the online qualification phase will be invited to comp...

  • Dreamhack Invitational

    Official URL
    Total events: 6
    Avg weight: 0.00

    Dreamhack Invitational is an annual CTF event organized by the Dreamhack team.

  • SECUINSIDE CTF Quals

    Official URL
    Total events: 5
    Avg weight: 47.35

  • Boston Key Party CTF

    Official URL
    Total events: 5
    Avg weight: 60.01

    a yearly ctf put on by a small group of friends

  • BSIDES CTF

    no logo

    Official URL
    Total events: 5
    Avg weight: 27.38

  • Sharif University CTF

    Official URL
    Total events: 5
    Avg weight: 25.70

  • Break In

    no logo

    Official URL
    Total events: 5
    Avg weight: 10.70

  • OpenCTF

    Official URL
    Total events: 5
    Avg weight: 19.67

    DEF CON OpenCTF! Now with a feline touch.

    2019-? Neg9 https://ctftime.org/team/303
    2014?-2018 v& https://ctftime.org/team/359

  • Hack Zone Tunisia

    no logo

    Total events: 5
    Avg weight: 28.54

  • Codefest CTF

    Official URL
    Total events: 5
    Avg weight: 21.25

    Codefest presents Capture the Flag, inviting all hackers to show off their skills on a global platform. It provides students with an opportunity to tackle computer security p...

  • OmCTF

    Official URL
    Total events: 5
    Avg weight: 0.00

  • InnoCTF

    Official URL
    Total events: 5
    Avg weight: 0.00

  • WhiteHat Challenge

    Official URL
    Total events: 5
    Avg weight: 0.00

    WhiteHat Challenge is a CTF contest held periodically by WhietHat.vn for beginners in learning or researching cybersecurity as system admins, students in technical schools, e...

  • CyberTalents CTFs

    Official URL
    Total events: 5
    Avg weight: 25.00

    CyberTalents is a platform that ranks cyber security professionals across the globe by running CTF competitions


  • SEC-T CTF

    no logo

    Official URL
    Total events: 5
    Avg weight: 30.24

    SEC-T is non-profit annual IT security conference held in Stockholm, Sweden. This time we celebrate 10 years. We celebrate this with a retro-CTF. The date is Wednesday 13/9 1...

  • SwampCTF

    Official URL
    Total events: 5
    Avg weight: 34.92

    SwampCTF is a student-run competition and hosted by the University of Florida Student InfoSec Team (UFSIT). Join us online for jeopardy-style fun with challenges in Pwn, Reve...

  • WPICTF

    Official URL
    Total events: 5
    Avg weight: 30.51

    WPICTF, hosted by Worcester Polytechnic Institute Cyber Security Club.

  • *ctf

    Official URL
    Total events: 5
    Avg weight: 28.90

  • TetCTF

    Official URL
    Total events: 5
    Avg weight: 54.55

  • Balsn CTF

    Official URL
    Total events: 5
    Avg weight: 58.81

    This year, we'll hold Balsn CTF 2020 with high-quality and creative challenges!
    We cordially invite your team to join this party!

    Organizers: Balsn (https://bals...

  • ALLES! CTF

    Official URL
    Total events: 5
    Avg weight: 33.66

    Hi CTFers,

    ALLES! is looking forward to host their second CTF which will be held during the first weekend of September 2020. This Jeopardy style CTF is open to everyo...

  • Reply CTF Challenge

    Official URL
    Total events: 5
    Avg weight: 25.24

    Reply will be hosting the Reply Cyber Security Challenge, at its fourth edition, a team competition open to both students and professionals aged 16+. The online challenge wil...

  • HackTM CTF

    Official URL
    Total events: 5
    Avg weight: 24.66

    HackTM CTF is a ctf organized by WreckTheLine together with HackTM.
    The CTF consists of 2 stages: an online stage, which represents the qualifying stage for the final e...

  • RundergroundCTF

    Official URL
    Total events: 5
    Avg weight: 23.82

    Attack-Defence CTF by C4T BuT S4D team.

  • INCOGNITO

    Official URL
    Total events: 5
    Avg weight: 22.25

    The first edition of INCOGNITO, the flagship CTF event, brought to you
    by Equinox. A variety of tasks and challenges await you, so who will
    capture the flags and ri...

  • Shakti CTF

    Official URL
    Total events: 5
    Avg weight: 31.57

    ShaktiCTF is a Jeopardy style online Capture The Flag competition to upbring and promote women in the industry.
    It's a beginner friendly CTF.

    The CTF will incl...

  • Cyber Grabs CTF

    Official URL
    Total events: 5
    Avg weight: 22.60

  • Bambi CTF

    Official URL
    Total events: 5
    Avg weight: 46.30

    The Bambi CTFs are a series of Attack-Defense CTFs primarily intended for beginners. They feature fewer and easier challenges and are shorter than full-fledged Attack-Defense...

  • Break the Syntax CTF

    Official URL
    Total events: 5
    Avg weight: 36.38

    Break the Syntax CTF is an event organized by PWr Synt@x Err0r team which is part of White Hats scientific circle at Wroclaw University of Science and Technology.

  • DiceCTF

    Official URL
    Total events: 5
    Avg weight: 59.38

    For more information about DiceCTF, visit: https://ctf.dicega.ng

    Join our Discord server: https://discord.gg/dicectf

  • BlueHens CTF

    Official URL
    Total events: 5
    Avg weight: 31.51

    Organized by the University of Delaware's own CTF team, the BlueHens CTF aims to provide interesting and unique challenges in a jeopardy-style format targeting academic as we...

  • San Diego CTF

    Official URL
    Total events: 5
    Avg weight: 26.90

    San Diego CTF, also known as SDCTF, is an annual Capture the Flag competition hosted by undergraduates at the University of California, San Diego. We encourage participation ...

  • VishwaCTF

    Official URL
    Total events: 5
    Avg weight: 28.48

    VishwaCTF is the Flagship event of CyberCell-VIIT. It will be an Jeopardy style Ctf with team participation.
    The ctf will be live for 48 hours, and top winners will be ...

  • Securebug.se CTF

    Official URL
    Total events: 5
    Avg weight: 21.25

    SecureBug is organizing another CTF.
    Enjoy with your friends solving a number of challenges in different categories varying from basic to hard level.
    This CTF is f...

  • LINE CTF

    Official URL
    Total events: 5
    Avg weight: 48.38

    LINE CTF is organized by the LINE security team.

  • HeroCTF

    Official URL
    Total events: 5
    Avg weight: 51.03

    HeroCTF is an online cybersecurity competition for beginners or advanced players that takes place once a year.

  • corCTF

    Official URL
    Total events: 5
    Avg weight: 58.20

    Organized by the Crusaders of Rust (a.k.a. Starrust Crusaders), an American and European collegiate team.

  • LIT CTF

    Official URL
    Total events: 5
    Avg weight: 51.15

    Lexington Informatics Tournament CTF 2021 is a Jeopardy-style, beginner-friendly online CTF that's open to everyone. It is hosted by the LexMACS club from Lexington High Scho...

  • niteCTF

    Official URL
    Total events: 5
    Avg weight: 28.88

    niteCTF is a jeopardy style CTF for students interested in cybersecurity. niteCTF is designed to help students explore newer domains in cybersecurity as well as help existing...

  • BuckeyeCTF

    Official URL
    Total events: 5
    Avg weight: 44.95

    CTF run by students from Cyber Security Club @ Ohio State.

    BuckeyeCTF is intended to be beginner-friendly and is geared towards university teams, but there will be a ...

  • TFC CTF

    Official URL
    Total events: 5
    Avg weight: 46.99

    The Few Chosen organizes its first CTF event between 26th-28th November. We are a group of 5 students that have participated in numerous CTFs and our passion for cybersecurit...

  • JerseyCTF

    Official URL
    Total events: 5
    Avg weight: 26.78

    JerseyCTF is a beginner-friendly Capture the Flag competition that aims to inspire interest in cybersecurity. Hosted by the NJIT ACM and NICC organizations and the NJIT SCI p...

  • Grey Cat The Flag

    Official URL
    Total events: 5
    Avg weight: 31.85

    Grey Cat The Flag is a jeopardy style CTF organized by NUS Greyhats (http://nusgreyhats.org/) and National Cybersecurity R&D Labs (http://ncl.sg/).

  • SpookyCTF

    Official URL
    Total events: 5
    Avg weight: 25.15

    SpookyCTF is NICC's first official fall CTF. This is a fully virtual CTF, open to all but geared towards beginners with a spooky theme!

    Our challenges will include cr...

  • snakeCTF

    Official URL
    Total events: 5
    Avg weight: 31.70

    SnakeCTF is an online jeopardy-style CTF featuring challenges from many categories, including pwn, web, reversing, crypto, forensics and network.

  • .. Junior.Crypt CTF

    Official URL
    Total events: 5
    Avg weight: 25.48

    We have been running CTF quests for almost 10 years.. Organized by a team of students from the Department of System Programming and Computer Security of Grodno State Universi...

  • DASCTF

    Official URL
    Total events: 5
    Avg weight: 16.50

    DASCTF is a professional skills competition organized by the Digital Talent Innovation Institute of Hangzhou Anheng Information Technology Co., Ltd. It aims to provide cybers...

  • DFIR Labs CTF

    Official URL
    Total events: 5
    Avg weight: 0.00

    Get ready to elevate your DFIR skills with our exciting DFIR Labs Capture The Flag (CTF) competition! This event will immerse you in real-world intrusion scenarios, crafted t...

  • PHD CTF Quals

    Official URL
    Total events: 4
    Avg weight: 46.15

    All tasks are available here: http://ctfarchive.phdays.com/

  • Hackfest

    Official URL
    Total events: 4
    Avg weight: 12.50

    Hackfest is a 2 day conference from 8am to 18pm and a 2 hacking games nights from 19pm to 3am, in Quebec, Canada. See games descriptions here
    http://www.hackfest.ca/en/...

  • BCTF

    no logo

    Official URL
    Total events: 4
    Avg weight: 28.33

    BCTF 2014 is a national contest in China.
    From the year 2015, BCTF will be opened to all participants around the world.

  • School CTF

    Official URL
    Total events: 4
    Avg weight: 25.00

    School CTF is a CTF competitions organized by SiBears team annually since 2010. This is a task-based (jeopardy style) CTF that only lasts for 5 hours, so we meet the constrai...

  • WhiteHat Contest

    Official URL
    Total events: 4
    Avg weight: 20.19

    WhiteHat Contest, a Capture The Flag contest, is held periodically by WhiteHat.vn, leading cyber security forum in Vietnam. WhiteHat Contest 11th will be the first Contest to...

  • QCTF

    Official URL
    Total events: 4
    Avg weight: 5.00

    On-site CTF for beginners, hosted by schools and universities around Russia and other CIS countries.

  • ctf.moscow

    Official URL
    Total events: 4
    Avg weight: 30.25

    Former Russian Cybersecurity Competition

  • SibirCTF

    Official URL
    Total events: 4
    Avg weight: 25.00

    Tomsk, Russian Federation

  • NeverLAN CTF

    Official URL
    Total events: 4
    Avg weight: 12.37

    A Middle School focused CTF event.
    Everyone is welcome to come join in the fun, but Middle School / Jr. High students will be scored separately for prizes.
    Go to o...

  • CODE BLUE CTF

    no logo

    Official URL
    Total events: 4
    Avg weight: 23.31

    In modern times the Internet is the vital of our society, which inevitably brings about cyber crimes, increasing in number and quantity. In late years the importance of infor...

  • HSE CTF

    Official URL
    Total events: 4
    Avg weight: 28.92

    On-site prequalified All-Russian students and schoolchildren CTF organized by HSE CTF team. VK: vk.com/hsectf TG: t.me/hsectf

  • CTF Russian Cup

    Official URL
    Total events: 4
    Avg weight: 0.00

    CTF Russian Cup is an annual wide CTF tournament between the winners of russian regional CTF-competitions.

  • b00t2root

    Official URL
    Total events: 4
    Avg weight: 21.88

    Hola hackers! Team NullKrypt3rs from IIITA is excited to announce b00t2root '20. A jeopardy style team CTF for the awesome infosec community .
    Get ready for some excitin...

  • Byte Bandits CTF

    Official URL
    Total events: 4
    Avg weight: 33.36

    A Capture the Flag Competition held by Byte Bandits, IIT Indore’s academic CTF team.

  • Aero CTF

    Official URL
    Total events: 4
    Avg weight: 46.49

    https://twitter.com/AeroCTF

    https://discord.gg/gEVbRFh8py

  • UUTCTF

    no logo

    Official URL
    Total events: 4
    Avg weight: 17.49

    UUTCTF is a student CTF competition which is going to be held by Urmia University of Technology (http://uut.ac.ir). The organization is going to be held in corporation with U...

  • CyBRICS CTF

    Official URL
    Total events: 4
    Avg weight: 31.58

    CyBRICS is a cross-university effort to bring students in BRICS countries into practical computer security through CTFs

  • zer0pts CTF

    Official URL
    Total events: 4
    Avg weight: 47.79

    zer0pts CTF is a Jeopardy-style CTF held by zer0pts, a Japanese CTF team.

  • SCTF-XCTF

    Official URL
    Total events: 4
    Avg weight: 31.32

    This is xctf's Southwest Division in China

  • perfect blue CTF

    Official URL
    Total events: 4
    Avg weight: 49.71

    CTF organized by the perfect blue team

  • BSidesTLV CTF

    Official URL
    Total events: 4
    Avg weight: 21.63

    BSidesTLV is one of Israel's leading cyber conferences for hackers and security researchers - also hosting the annual Capture The Flag (CTF) competition!

  • Hacker's Playground

    Official URL
    Total events: 4
    Avg weight: 36.50

    Hacker's Playground is a side event of SSTF(Samsung Security Tech Forum).

  • BSides Algiers

    Official URL
    Total events: 4
    Avg weight: 25.00

    Security BSides is a series of conferences/workshops held in parallel with a hacking contest (CTF) in different places all over the world (see http://www.securitybsides.com/ ...

  • CyberTalents CTF

    Official URL
    Total events: 4
    Avg weight: 0.00

    Cyber Talents is a platform that ranks cyber security talents according to their real hands
    on skills in different cyber security categories by running capture the flag ...

  • SPbCTF's Student CTF

    Official URL
    Total events: 4
    Avg weight: 32.92

    Student CTF is a novice-level Capture The Flag organized by SPbCTF and supported by St. Petersburg Committee for Science and Higher Education.

    Free-to-play track is ...

  • DaVinciCTF

    Official URL
    Total events: 4
    Avg weight: 30.99

    DaVinciCTF is a jeopardy-style CTF competition held by DaVinciCode, the academic team of the École supérieure d'ingénieurs Léonard-de-Vinci.

    Stay updated by joining...

  • Tenable CTF

    Official URL
    Total events: 4
    Avg weight: 25.05

    The Tenable Capture the Flag is a Jeopardy-style competition that includes challenges on a range of topics. All skill levels are welcome to compete! Challenges will vary in d...

  • JUST CTF

    Official URL
    Total events: 4
    Avg weight: 0.00

  • FooBarCTF

    Official URL
    Total events: 4
    Avg weight: 25.50

    FooBarCTF is a world-wide Capture The Flag (CTF) competition organized by GNU/Linux Users Group, NIT Durgapur during Aarohan, Annual Techno-Management Fest of NIT Durgapur.

  • TsukuCTF

    Official URL
    Total events: 4
    Avg weight: 0.00

    This is a CTF with Japanese OSINT as the main genre.
    There are a few other genres mixed in as well.
    Please note that there may be challenges themed on places that a...

  • BRICS+ CTF

    Official URL
    Total events: 4
    Avg weight: 27.73

    International team competitions BRICS+ Capture The Flag. The qualification stage will be online in CTF Jeopardy format. The best teams will be able to compete in the final, w...

  • idekCTF

    Official URL
    Total events: 4
    Avg weight: 46.93

    idekCTF is an information security CTF competition organized by the idek team and is aimed at high school and university students, with difficult challenges catering to more ...

  • BYUCTF

    Official URL
    Total events: 4
    Avg weight: 35.47

    A CTF hosted by BYU Cyberia, the official CTF team of Brigham Young University.

  • KnightCTF

    Official URL
    Total events: 4
    Avg weight: 16.26

    Knight CTF is an online jeopardy style Capture the Flag (CTF) competition hosted by the Knight Squad community from Bangladesh. This is the first international CTF from Bangl...

  • CrewCTF

    Official URL
    Total events: 4
    Avg weight: 35.91

    CrewCTF is an annual cybersecurity Capture The Flag competition hosted by TheHackersCrew. With intermediate to expert level challenges, our contests are great opportunities f...

  • Space Heroes CTF

    Official URL
    Total events: 4
    Avg weight: 27.90

    Space Heroes CTF is an online jeopardy style Capture the Flag competition hosted by the FITSEC Team From Florida Tech.

    Join our Discord! https://discord.gg/wvuvDUjAeg...

  • PatriotCTF

    Official URL
    Total events: 4
    Avg weight: 33.75

    PatriotCTF is a beginner-friendly, jeopardy-style capture-the-flag competition hosted by GMU's cybersecurity club, MasonCC. All are welcome to participate, including students...

  • T3N4CI0US CTF

    Official URL
    Total events: 4
    Avg weight: 9.64

    It is a competition designed to contribute to strengthening security capabilities and spreading security awareness to suit the purpose of cybersecurity.

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