Every hackathon, in one place.

ETHOnline 2026 — Sep 4–16, 2026 (Async Online Hackathon; Apply to Attend; Approval Required)

Junction 2026: European Tech Renaissance — Nov 13–15, 2026 (48-Hour Hackathon; Applications Open)

COMMA_HACK 7 — Sep 18–20, 2026

Agentic Cinema: The Blockbuster Hackathon — Jul 27 – Sep 9, 2026 (Online Hackathon; Registration Open)

GirlHacks 2026 (Women in Computing Hackathon; Registration Open)

ETHGlobal Tokyo 2026 — Sep 25–27, 2026 (Apply to Attend; Approval Required)

HackTX 26 — Oct 24–25, 2026 (Student Hackathon; Applications Open)

AnimalHack 2026 — Sep 12–13, 2026 (Online Hackathon; Registration Open)

Agents for Humans Hackathon — Aug 10 – Sep 14, 2026 (Online Hackathon; Registration Open)

CALL-E: Your Code Is Calling — Jul 23 – Sep 14, 2026 (Online Hackathon; Registration Open)

Urban Sustainability Hackathon: World Cup 2026 HACK — Jun 23 – Sep 17, 2026

The WebMCP Challenge — Aug 25 – Sep 3, 2026 (Online Hackathon; Registration Open)

DevNetwork [API + Cloud + AI] Hackathon 2026 — Aug 17– Sep 3, 2026

RePlay Alexandria: Shipaton Edition — Sep 5, 2026 (4-Hour Build Sprint; Applications Open)

AI Infra Summit Hackathon 2026 — Sep 10–17, 2026 (Hybrid Hackathon; Enrollment Open; On-Site by Invitation)

AI Incident Response Sprint — Sep 11–13, 2026 (AI Safety Research Hackathon; Sign-Up Open)

Hack the Track 2026 — Sep 11–12, 2026 (High School Hackathon; Registration Open)

HackMTY 2026 — Sep 11–13, 2026 (Registration Open)

HackRice 16 — Sep 11–13, 2026

Global Hack Week: Data — Sep 11–17, 2026

AI Tinkerers: Agents, Everywhere — Global Hackathon — Sep 12, 2026 (One-Day Builders Hackathon; Apply to Attend; Approval Required)

VISION HACK 2026 — Sep 12, 2026 (12-Hour Youth Hackathon; Apply to Attend; Approval Required)

HackWesTX 2026 — Sep 12–13, 2026 (Student Hackathon; Registration Open)

AI Agent Hackathon — Sep 20, 2026 (One-Day Hackathon; Registration Open)

Cal Hacks 13.0 — Oct 23–25, 2026 (Collegiate Hackathon; Applications Open)

Hack-Nation Global AI Hackathon 7 — Oct 3–4, 2026 (24-Hour Hybrid AI Hackathon; Rolling Applications Open)

InnoHacks 4.0 — Oct 3–4, 2026 (Student Hackathon; Applications Open)

Shipaton 2026

GatewayHacks 2026: Software & AI — Sep 1 – Oct 2, 2026 (Virtual Student Hackathon; Registration Open)

RowdyHacks XII: Hack & Heist (Student Hackathon; Registration Open)

codeLinc 11 with Lincoln Financial & AWS — Oct 3–4, 2026

HackYeah 2026 — Oct 3–4, 2026 (Europe's Largest Stationary Hackathon; Registration Open)

Banana Hacks 2026 — Oct 9–12, 2026 (Online Generative AI Hackathon; Registration Open)

2027 Data for Good Hackathon — Oct 16–17, 2026 (Leads to Data & AI Program Internship)

Build, Ship, Shape: Amazon Developer Hackathon — Aug 31 – Oct 23, 2026

OpenCV AI Competition 2026, powered by AWS — Aug 26 – Oct 26, 2026

Congressional App Challenge 2026 — Submissions Due Oct 26, 2026 (Middle & High School Coding Competition; Registration Open)

TUM Blockchain & AI Hackathon 2026 — Oct 30–31, 2026 (Applications Open)

Nebius x NVIDIA Global AI Hackathon — Aug 26 – Oct 30, 2026

ETHGlobal Mumbai 2026 — Nov 6–8, 2026 (Apply to Attend; Approval Required)

Composable AI Hackathon 2026 — Sep 21–28, 2026 (Virtual Hackathon; Apply to Attend; Approval Required)

EUDIS Defence Hackathon Autumn 2026 — Oct 15–17, 2026 (Multi-City EU Defence-Tech Hackathon; Registration Open)

GitHub Game Off 2026 — Nov 1 – Dec 1, 2026 (Month-Long Game Jam; Registration Open)

IEEE ClimateChain Global Hackathon — Oct 5–25, 2026 (Online Student Hackathon; Registration Open)

HackTitan 2027 — Feb 2–4, 2027 (Student Hackathon; Registration Open)

LaunchHacks V — Dec 11–15, 2026 (High School Hackathon; Registration Open)

Global Hack Week: Builders Week — Nov 6–12, 2026

Global Hack Week: Hacktoberfest — Oct 9–15, 2026

IBM Z Datathon 2026 — Oct 17–18, 2026 (24-Hour Student Datathon; Registration Open)

AMD Developer Hackathon: ACT III — Oct 12–18, 2026 (Hybrid Hackathon; Registration Open)

Bay-Valley Hacks 2026 — Sep 26, 2026 (High School Hackathon; Registration Open)

Dublin Hacx 2026 — Oct 3, 2026 (High School Hackathon; Registration Open)

Snowglobe 2026 — Nov 20–22, 2026 (Girls-Only High School Hackathon; Qualification Portal Open)

Hyphen-Hacks 2026 — Oct 10, 2026 (High School Hackathon; Sign-Up Form Open)

MakeUC 2026 — Nov 7–8, 2026 (24-Hour Hybrid Hackathon; Registration Open)

TechEx Amsterdam Hackathon 2026 — Oct 16–20, 2026 (Hybrid: Online Build Oct 16–19, On-Site Oct 19–20; Applications Open)

hackPHS 2026: Into the Skies — Oct 10–11, 2026 (High School Hackathon; Registration Open)

HackRU Fall 2026 — Oct 10–11, 2026 (Student Hackathon; Registration Open)

StormHacks 2026 — Oct 3–4, 2026 (Student Hackathon; Applications Open)

Sierra Hacks 2026 — Oct 24, 2026 (High School Hackathon; Registration Open)

TECH CORPS Hackathon 2026 — Nov 7 & Nov 14, 2026 (Ohio High School Hackathon; Registration Open)

Technica 2026 — Oct 17–18, 2026 (Hybrid Student Hackathon; Registration Open)

XRP Ledger Hackathon NYC 2026 — Oct 24–25, 2026 (36-Hour Hackathon; Apply to Attend; Approval Required)

Hack Apertus Online — Oct 1–16, 2026

Cambridge × Arcade AI Hackathon — Oct 3–4, 2026

Hacks for Humanity 2026 — Oct 9–11, 2026

Hack the Change 2026 — Nov 7–8, 2026

DeveloperWeek 2027 Hackathon — Jan 25 – Feb 11, 2027

Encode London Hackathon and Conference 2026 — Oct 23–25, 2026

Critical Infrastructure Shield Hackathon Switzerland 2026 — Oct 23–25, 2026

Singapore Defense Tech Hackathon 2026 — Sep 25–27, 2026 (Applications Open; Approval Required)

LarpHacks — Oct 24–25, 2026

Showerhacks — Sep 26, 2026 (One-Day Hackathon; Registration Open)

Since AI Hackathon 2026 — Nov 6–8, 2026

The AI Conference Hack Day 2026 — Sep 29, 2026 (One-Day Build; Approval Required)

WolfHacks 2026 — Oct 3–4, 2026 (Student Hackathon; Registration Open)

MakeCU 2026 — Nov 7–8, 2026 (Hardware Hackathon; Applications Open)

General Learning Hacks — Sep 19–20, 2026 (24-Hour EdTech & AI Hackathon; Registration Open)

Hack the Hill III — Sep 25–27, 2026 (Student Hackathon; Applications Open)

HackPSU Fall 2026 — Oct 24–25, 2026 (Student Hackathon; Applications Open)

OwlHacks 2026 — Sep 26–27, 2026 (Student Hackathon; Registration Open)

Gator Quant Hacks 2026 — Oct 2–4, 2026 (Quant Finance Hackathon; Applications Open)

&Hacks XII — Sep 25–27, 2026 (Student Hackathon; Registration Open)

Hacklanta '26

HackKnight 2026 — Oct 9–11, 2026 (Student Hackathon; Applications Open)

NASA Space Apps Challenge 2026 — Nov 14–15, 2026 (Registration Open)

CodeRED Orion — Oct 10–11, 2026

HackHers — Sep 18–19, 2026 (Registration Open)

HoyaHacks 2027 (Student Hackathon; Registration Open)

hackUMBC 2026 — Sep 26–27, 2026

Hack_NCState 2027 — Feb 6–7, 2027

Knight Hacks IX — Oct 9–11, 2026

HackGT 13 — Sep 25–27, 2026

DivHacks 2026 (Collegiate Hackathon; Registration Open)

HackRPI 2026 (Intercollegiate Hackathon; Registration Open)

SteelHacks XIII (Student Hackathon; Applications Open)

Hack the Valley 11 (Applications Open)

HackHarvard 2026 (Student Hackathon; Applications Open)

HackNC 2026 — Oct 9–11, 2026 (Student Hackathon; Registration Open)

Hack Dearborn 2026 — Oct 3–4, 2026

VTHacks Code for the Cup — Fall 2026

HackUMass XIV (36-Hour Student Hackathon; Pre-Registration Open)

Arcangel AI: $1,000,000 IP-A-THON (Early Access; Approval Required)

HackPrinceton Fall 2026 — Nov 13–15, 2026 (Student Hackathon; Applications Opening Soon)

804 Hacks 2026 — Oct 24, 2026 (Student Hackathon, Grades 6–12; Interest Form Open)

LauzHack 2026 — Nov 21–22, 2026 (Student Hackathon; Interest Form Open)

12th CASSINI Hackathon: EU Space for Peace and Resilience — Nov 27–29, 2026 (Multi-City; Registration Opening Soon)

Haven 2026 — Nov 14–15, 2026 (Global Teen Game Jam, Ages 13–18; Interest Form Open)

HackCamp 2026 — Nov 7–8, 2026 (Beginner-Only Student Hackathon; Interest Form Open)

BoilerMake XIV — Jan 22–24, 2027 (Student Hackathon; Interest Form Open)

hackaTUM 2026 — Nov 27–29, 2026 (Student Hackathon; Applications Open in October)

GreatUniHack 2026 — Nov 7–8, 2026 (Student Hackathon; Interest Form Open)

HackNotts '26 — Oct 24–25, 2026 (Student Hackathon; Interest Form Open)

Hack Western 13 — Nov 20–22, 2026 (Student Hackathon; Interest Form Open)

HackStorm 3.0: Sense, Think and Act — Nov 6–8, 2026 (Registration Opens Oct 1)

CUhackit 2027 — Feb 20–21, 2027 (Student Hackathon; Interest Form Open)

Hacklytics 2027: Digital Bloom — Feb 26–28, 2027 (Data Science Hackathon; Registration Opening Soon)

MakeUofT 2027 — Feb 13–14, 2027 (Makeathon; Applications Coming Soon)

SpartaHack 12 — Feb 6–7, 2027 (Student Hackathon; Applications Coming Soon)

HackHERS 2027 — Feb 27–28, 2027 (Women-Centric Student Hackathon; Registration Opening Soon)

SF Hacks 2027 — Feb 19–21, 2027 (Student Hackathon; Registration Opening Soon)

hackCBS 9.0 — Oct 31 – Nov 1, 2026 (Student Hackathon; Interest Form Open)

RevolutionUC 2027 — Feb 27–28, 2027 (Student Hackathon; Interest Form Open)

HackIllinois 2027 (Student Hackathon; Next Cycle Not Yet Posted)

ElleHacks 2027 (Student Hackathon; Date TBA; Applications Not Yet Open)

SwampHacks XII — Oct 16–18, 2026 (Student Hackathon)

HackUTD 2026 — Nov 7–8, 2026 (Student Hackathon; Applications Not Yet Open)

DurHack 2026 (Student Hackathon; Interest Form Open)

Hackville (College Hackathon; Interest Form Open for 2027)

InnovateHer (Student Hackathon; Next Event Feb 6–7, 2027)

uOttaHack 9 (Student Hackathon; Premiering January 2027)

UGAHacks 12 (Student Hackathon; Pre-Registration Open)

BigRed//Hacks 2026 (Collegiate Hackathon; Applications Coming Soon)

SBUHacks (Collegiate Hackathon; Applications Coming Soon)

DubHacks 2026 (Collegiate Hackathon; Applications Coming Soon)

Hack@Brown 2027 (Student Hackathon; Applications Coming Soon)

DeltaHacks 13 (Student Hackathon; Interest Form Open)

nwHacks 2027 (Student Hackathon; Applications Coming Soon)

UofTHacks 14 (Student Hackathon; Next Cycle January 2027)

LA Hacks (Student Hackathon; Next Event Mid-April 2027)

PennApps (Student Hackathon; Next Cycle Not Yet Posted)

Bitcamp (Student Hackathon; Next Cycle Not Yet Posted)