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The Bay Area hackathon calendar

Everything worth building at,
gathered in one place.

Every hackathon across San Francisco and the wider Bay Area, kept current morning and evening. Subscribe once and the next one finds you — no more combing through invite links and half-dead group chats.

70 hackathons listed nowLast checked September 9 at 11:26 AM

What’s coming up

  1. September 2026

    MantisGrid AI Hackathon & Summit 2026

    MantisGrid AI · Mitchell Park Community Center, Palo Alto

    10-hour build with judging, demos, team formation, a submission deadline; $10,000 cash.

    Open$10,000 cash

  3. Night Hack by Founders, Inc.

    Founders, Inc. Events · San Francisco

    7-hour build with judging, demos, team formation; prizes listed.

    ApprovalPrizes listed

  4. Dream AI Hackathon 2026

    LIKELION US · Frontier Tower 🧑‍🚀, San Francisco

    12-hour build with judging, team formation, a submission deadline; $50 prizes.

    Open$50 prizes

  5. TrueFoundry Agent Harness Hackathon

    [SF] HackerSquad · 3120 Scott Blvd, Santa Clara

    11-hour build with judging, demos, team formation, a submission deadline.

    Open

  6. SVYCA Youth for Earth (Y4E) Hackathon

    Silicon Valley Youth Climate Action · Stanford University, Stanford

    29-day build with a submission deadline; $2,700 prizes.

    Check page$2,700 prizes

  8. Alpaca x Conviction Trading Hackathon

    Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco

    4-hour build with demos, team formation; $2,000 prizes.

    Approval$2,000 prizes

  9. SF Enterprise Hackathon 2.0

    Devnovate · San Francisco

    8-hour build with judging, demos, team formation; prizes listed.

    ApprovalPrizes listed

  11. Long Horizon Agents Hackathon

    tokens& · San Francisco

    10-hour build with judging, demos, team formation, a submission deadline.

    Open

  12. Long Horizon Agents Hackathon

    tokens& · San Francisco

    10-hour build with judging, demos, team formation, a submission deadline.

    Approval

  15. Showerhacks

    Showerhacks · Entrepreneurs First, San Francisco

    13-hour build with team formation.

    Open

  16. Healthcare AI Hackathon

    Personal · AWS Builder Loft, San Francisco

    7-hour build with demos, team formation; $5,000 cash.

    Approval$5,000 cash

  18. Bitrig Hacks: iPhone 18 Edition

    Y Combinator · San Francisco

    8-hour build with judging, demos, team formation; prizes listed.

    OpenPrizes listed

  21. The AI Conference Hack Day 2026

    [SF] HackerSquad · Mission Bay, San Francisco

    10-hour build with demos, team formation; prizes listed.

    OpenPrizes listed

  24. October 2026

  27. The AI Commerce Gallery - Hackathon

    AI Valley · San Francisco

    12-hour build with judging, demos, team formation, a submission deadline; prizes listed.

    OpenPrizes listed

  28. October 3 Hackathon

    Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco

    13-hour build.

    Open

  29. Dublin Hacx

    Emerald High School · SAP Office — San Ramon, CA, San Ramon

    12-hour build with a submission deadline; $2,250 prizes.

    Check page$2,250 prizes

  31. AI Hackathon: Sales Copilot AI

    TatianaSF · Northern Waterfront, San Francisco

    8-hour build with judging, demos, team formation; prizes listed.

    OpenPrizes listed

  33. Cyberdefense Hackathon

    tokens& · San Francisco

    10-hour build with judging, demos, team formation, a submission deadline; prizes listed.

    ApprovalPrizes listed

  34. AI Native Summit - SF TechWeek 2026

    PAI Palooza Presents - Build with AI Native Studio - 2026 · 847 Howard St, San Francisco

    2-day build with demos, team formation; $50,000 cash.

    Open$50,000 cash

  35. Tech Week Hackathon

    Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco

    10-hour build.

    Open

  37. De Anza Hackathon 5.0

    De Anza Hacks · De Anza College, Cupertino

    2-day build; prizes listed.

    OpenPrizes listed

  42. Dell x NVIDIA Hackathon

    Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco

    10-hour build.

    Open

  43. November 2026

    HackStorm 3.0: Sense, Think and Act

    HackStorm · San Francisco, California, USA, San Francisco

    2-day build with a submission deadline; $5,200 prizes.

    Check page$5,200 prizes

  44. AI Tutor Hackathon

    Beta University Events · Stanford

    8-hour build with demos, team formation, a submission deadline; prizes listed.

    ApprovalPrizes listed

  45. FutureForge Hacks

    FutureForge Hacks · Zoho Corporation, Pleasanton

    13-hour build.

    Open

  46. Festiverse 2026: Diwali Hackathon

    Events · Financial District, San Francisco

    11-hour build with judging, demos, team formation, a submission deadline; prizes listed.

    OpenPrizes listed

  47. HackwithBay 4.0

    Devnovate · AWS Builder Loft, San Francisco

    9-hour build with demos, team formation, a submission deadline; prizes listed.

    ApprovalPrizes listed

  48. December 2026

    Mango Hacks

    krishay suresh · Zoho Corporation, Pleasanton

    13-hour build with judging, a submission deadline.

    Approval

  49. Agentic AI Hackathon 2.0 - SF

    Devnovate · AWS Builder Loft, San Francisco

    9-hour build with demos, team formation; prizes listed.

    ApprovalPrizes listed

  50. January 2027

  52. DeveloperWeek 2027 Hackathon

    DevNetwork · Santa Clara Convention Center + Online, Santa Clara

    17-day build with a submission deadline.

    Check page

  53. February 2027

    SF Hacks

    Major League Hacking · San Francisco

    3-day build.

    Check page