ONLINE · OCTOBER 2026

Online hackathons this week

100 hackathons coming up this week online — with dates, prizes, registration deadlines and where to register. Funillion checks Devfolio, Unstop, Devpost, HackerEarth and more every few hours, so this list stays fresh.

1. OCT23 ⌘ HackathonsCodeAxis HackathonFri, 23 Oct · 3:31 am · Online See listingon Unstop
2. OCT23 ⌘ HackathonsGator Hack V - AI Days 2026Fri, 23 Oct · Online Freeon Devpost
3. OCT23 ⌘ HackathonsSyntax Error 2026Fri, 23 Oct · 9:00 pm · Online Freeon Devfolio
4. OCT23 ⌘ HackathonsTata Elxsi TELIPORT Season 4Fri, 23 Oct · 9:31 pm · Online See listingon Unstop
5. OCT23 ⌘ HackathonsBuild 2026 x ByteAsk (YC F26): Open-Source ChallengeFri, 23 Oct · 11:59 pm · Online See listingon Unstop
6. OCT24 ⌘ HackathonsHefty-HacksSat, 24 Oct · 12:00 am · Online Freeon Devfolio
7. OCT24 ⌘ HackathonsBlitz'26 - Technical Coding & Debugging EventSat, 24 Oct · 12:00 am · Online See listingon Unstop
8. OCT24 ⌘ HackathonsGame Jam - TantraFiesta 2026Sat, 24 Oct · 10:00 am · Online See listingon Unstop
9. OCT24 ⌘ HackathonsMalanhackSat, 24 Oct · 11:41 am · Online See listingon Unstop
10. OCT24 ⌘ HackathonsThe OutpostSat, 24 Oct · 4:00 pm · Online See listingon Unstop
11. OCT24 ⌘ HackathonsWebforge AISat, 24 Oct · 4:00 pm · Online See listingon Unstop
12. OCT24 ⌘ HackathonsHacktoberfest × BFIT HACKATHON 2026Sat, 24 Oct · 7:43 pm · Online See listingon Unstop
13. OCT24 ⌘ HackathonsCode Variant — Build 01Sat, 24 Oct · 11:59 pm · Online See listingon Unstop
14. OCT25 ⌘ HackathonsNexHack 3.0 — Build What's NextSun, 25 Oct · 12:00 am · Online See listingon Unstop
15. OCT25 ⌘ HackathonsBlackout CTFSun, 25 Oct · 12:00 am · Online See listingon Unstop
16. OCT25 ⌘ HackathonsRevhackSun, 25 Oct · 12:00 am · Online See listingon Unstop
17. OCT25 ⌘ HackathonsNational Online Hackathon 2026Sun, 25 Oct · 12:00 am · Online See listingon Unstop
18. OCT25 ⌘ HackathonsShakti HackathonSun, 25 Oct · 12:01 am · Online See listingon Unstop
19. OCT25 ⌘ HackathonsBuild and Break HackathonSun, 25 Oct · 2:26 am · Online See listingon Unstop
20. OCT25 ⌘ HackathonsTriwizathon 2026 : Where Code Meets MagicSun, 25 Oct · 8:00 am · Online See listingon Unstop
21. OCT25 ⌘ HackathonsDesignathonSun, 25 Oct · 9:00 am · Online See listingon Unstop
22. OCT25 ⌘ HackathonsBuilt With Talent S1 | Hiring HackathonSun, 25 Oct · 11:01 am · Online See listingon Unstop
23. OCT25 ⌘ HackathonsOrca Coders: OrcathonSun, 25 Oct · 3:31 pm · Online See listingon Unstop
24. OCT25 ⌘ HackathonsAlgorithmia - The ICPC Style Coding ChallengeSun, 25 Oct · 4:00 pm · Online See listingon Unstop
25. OCT25 ⌘ HackathonsBharat Academix Hackverse 2026Sun, 25 Oct · 5:00 pm · Online See listingon Unstop
26. OCT25 ⌘ HackathonsBuildLab 2026Sun, 25 Oct · 5:00 pm · Online See listingon Unstop
27. OCT25 ⌘ HackathonsWeb Home UI Designer ChallengeSun, 25 Oct · 5:31 pm · Online See listingon Unstop
28. OCT25 ⌘ HackathonsFinding the Next SignalSun, 25 Oct · 6:00 pm · Online See listingon Unstop
29. OCT25 ⌘ HackathonsCatalyst Hack 2026Sun, 25 Oct · 8:00 pm · Online See listingon Unstop
30. OCT25 ⌘ HackathonsIdeathon 6.0: Ideas into ImpactSun, 25 Oct · 8:01 pm · Online See listingon Unstop
31. OCT25 ⌘ HackathonsHackyard Build 2026Sun, 25 Oct · 9:33 pm · Online See listingon Unstop
32. OCT25 ⌘ HackathonsChronoForgeSun, 25 Oct · 10:00 pm · Online See listingon Unstop
33. OCT25 ⌘ HackathonsKannada Digital Innovation Hackathon 2026Sun, 25 Oct · 10:00 pm · Online See listingon Unstop
34. OCT25 ⌘ HackathonsCODE RED — Competitive Programming ContestSun, 25 Oct · 11:30 pm · Online See listingon Unstop
35. OCT25 ⌘ HackathonsICC CodeClash 2026Sun, 25 Oct · 11:59 pm · Online See listingon Unstop
36. OCT25 ⌘ HackathonsOblivion - The Ultimate Capture The Flag (CTF) CompetitionSun, 25 Oct · 11:59 pm · Online See listingon Unstop
37. OCT26 ⌘ HackathonsCascade — Flagship HackathonMon, 26 Oct · 11:00 am · Online See listingon Unstop
38. OCT26 ⌘ HackathonsKeep Alive ’26Mon, 26 Oct · 7:00 pm · Online See listingon Unstop
39. OCT27 ⌘ HackathonsBuild With NovaTue, 27 Oct · 12:00 am · Online See listingon Unstop
40. OCT27 ⌘ HackathonsNext Station 2026Tue, 27 Oct · 10:00 am · Online See listingon Unstop