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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

    AI Infra Summit Hackathon

    lablab.ai Events · Santa Clara Convention Center, Santa Clara

    3-day build with judging, demos, team formation; prizes listed.

    OpenPrizes listed

  2. 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

  4. Night Hack by Founders, Inc.

    Founders, Inc. Events · San Francisco

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

    ApprovalPrizes listed

  5. 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

  6. TrueFoundry Agent Harness Hackathon

    [SF] HackerSquad · 3120 Scott Blvd, Santa Clara

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

    Open

  7. 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

  9. 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

  10. SF Enterprise Hackathon 2.0

    Devnovate · San Francisco

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

    ApprovalPrizes listed

  12. Long Horizon Agents Hackathon

    tokens& · San Francisco

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

    Open

  13. Long Horizon Agents Hackathon

    tokens& · San Francisco

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

    Approval

  16. Showerhacks

    Showerhacks · Entrepreneurs First, San Francisco

    13-hour build with team formation.

    Open

  17. Healthcare AI Hackathon

    Personal · AWS Builder Loft, San Francisco

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

    Approval$5,000 cash

  19. Bitrig Hacks: iPhone 18 Edition

    Y Combinator · San Francisco

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

    OpenPrizes listed

  22. The AI Conference Hack Day 2026

    [SF] HackerSquad · Mission Bay, San Francisco

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

    OpenPrizes listed

  25. October 2026

  28. The AI Commerce Gallery - Hackathon

    AI Valley · San Francisco

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

    OpenPrizes listed

  29. October 3 Hackathon

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

    13-hour build.

    Open

  30. 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

  32. AI Hackathon: Sales Copilot AI

    TatianaSF · Northern Waterfront, San Francisco

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

    OpenPrizes listed

  34. Cyberdefense Hackathon

    tokens& · San Francisco

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

    ApprovalPrizes listed

  35. 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

  36. Tech Week Hackathon

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

    10-hour build.

    Open

  38. De Anza Hackathon 5.0

    De Anza Hacks · De Anza College, Cupertino

    2-day build; prizes listed.

    OpenPrizes listed

  43. Dell x NVIDIA Hackathon

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

    10-hour build.

    Open

  44. 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

  45. AI Tutor Hackathon

    Beta University Events · Stanford

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

    ApprovalPrizes listed

  46. FutureForge Hacks

    FutureForge Hacks · Zoho Corporation, Pleasanton

    13-hour build.

    Open

  47. Festiverse 2026: Diwali Hackathon

    Events · Financial District, San Francisco

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

    OpenPrizes listed

  48. HackwithBay 4.0

    Devnovate · AWS Builder Loft, San Francisco

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

    ApprovalPrizes listed

  49. December 2026

    Mango Hacks

    krishay suresh · Zoho Corporation, Pleasanton

    13-hour build with judging, a submission deadline.

    Approval

  50. Agentic AI Hackathon 2.0 - SF

    Devnovate · AWS Builder Loft, San Francisco

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

    ApprovalPrizes listed

  51. January 2027

  53. DeveloperWeek 2027 Hackathon

    DevNetwork · Santa Clara Convention Center + Online, Santa Clara

    17-day build with a submission deadline.

    Check page

  54. February 2027

    SF Hacks

    Major League Hacking · San Francisco

    3-day build.

    Check page