Online Web3 Hackathons
Participate from anywhere in the world. Browse online Web3 and blockchain hackathons, compete for prizes, and build innovative projects.
View all with full filters →Kurukshetra CTF
Oct 2, 2026 - Oct 3, 2026
Prize Pool
₹20.0K
HackMatrix 5.0
Sep 28, 2026 - Sep 29, 2026
Prize Pool
₹70.0K
hacks test
Sep 9, 2027 - Dec 10, 2027
Prize Pool
$1
HarborHack 2026 - Agent In The Loop
Oct 23, 2026 - Oct 25, 2026
Prize Pool
$1.5K
Hyphen-Hacks
Oct 9, 2026 - Oct 10, 2026
Prize Pool
Non-cash Prize
804 Hacks
Oct 23, 2026 - Oct 24, 2026
Prize Pool
$978
LovHack Season 3
Sep 26, 2026 - Oct 4, 2026
Prize Pool
Non-cash Prize
STEMergent Hacks 2026
Oct 18, 2026 - Oct 31, 2026
Prize Pool
Non-cash Prize
Hack the Change 2026
Nov 7, 2026 - Nov 8, 2026
Prize Pool
CA$5.0K
Girls Hoo Hack 2026
Oct 17, 2026 - Oct 18, 2026
Prize Pool
Non-cash Prize
PalmettoHacks
Oct 10, 2026 - Oct 11, 2026
Prize Pool
$2.5K
Hyperbloom October- UI/UX and Web Design
Oct 5, 2026 - Oct 12, 2026
Prize Pool
Non-cash Prize
HuskyHack 2026:Phase 1
Oct 16, 2026 - Oct 17, 2026
Prize Pool
$18.0K
Bridge The Gap Hacks
Nov 15, 2026 - Nov 21, 2026
Prize Pool
Non-cash Prize
Test Flight: Glasswing Ventures AI Hackathon
Sep 26, 2026 - Sep 27, 2026
Prize Pool
Non-cash Prize
TigerHacks 2026
Sep 24, 2026 - Sep 27, 2026
Prize Pool
Non-cash Prize
Hack Like W@CC 2026
Oct 17, 2026 - Oct 18, 2026
Prize Pool
Non-cash Prize
CommuniHacks
Nov 7, 2026 - Nov 8, 2026
Prize Pool
$3.2K
2026 AI for Good Hackathon
Oct 23, 2026 - Oct 25, 2026
Prize Pool
Non-cash Prize
Gator Quant Hacks
Oct 2, 2026 - Oct 4, 2026
Prize Pool
$25.0K