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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.

79 hackathons listed nowLast checked September 20 at 6:28 PM

What’s coming up

  1. September 2026

    SVYCA Youth for Earth (Y4E) Hackathon

    Silicon Valley Youth Climate Action · Stanford University, Stanford

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

    Open$2,700 prizes

  9. Long Horizon Agents Hackathon

    tokens& · Financial District, San Francisco

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

    Open

  10. 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; $25 prizes.

    Open$25 prizes

  17. Healthcare AI Hackathon

    Andrew A Parambath · AWS Builder Loft, San Francisco

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

    Approval$5,000 cash

  19. Bitrig Hacks: iPhone Duo Edition

    Bitrig · San Francisco

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

    OpenPrizes listed

  25. Startup Speedrun Hackathon

    Brainbase Labs · Cloudflare, San Francisco

    8-hour build with team formation; $27.5k+ prizes.

    Approval$27.5k+ prizes

  28. The AI Conference Hack Day 2026

    [SF] HackerSquad · Mission Bay, San Francisco

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

    OpenPrizes listed

  30. AI Security Engineering Hackathon

    AI Security Engineers - SF Bay Area · AWS Builder Loft, San Francisco

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

    Approval

  34. October 2026

  35. Real-Time Video Agents Hack - SF

    tokens& · San Francisco

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

    OpenPrizes listed

  40. October 3 Hackathon

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

    13-hour build.

    Open

  41. 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

  43. AI Hackathon: Sales Copilot AI

    TatianaSF · Northern Waterfront, San Francisco

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

    OpenPrizes listed

  46. Cyberdefense Hackathon

    tokens& · Financial District, San Francisco

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

    Open

  47. 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

  48. Tech Week Hackathon

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

    10-hour build.

    Open

  51. AWS Community Day - AI Edition

    AWS Community Bay Area · AWS Builder Loft, San Francisco

    7-hour build with demos, team formation; $3,200 prizes.

    Open$3,200 prizes

  52. The Build: Hackathon

    Devnovate · San Francisco

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

    ApprovalPrizes listed

  53. De Anza Hackathon 5.0

    De Anza Hacks · De Anza College, Cupertino

    2-day build; prizes listed.

    OpenPrizes listed

  55. Maritime Dual-Use Hackathon

    Mind the Bridge · Mind the Bridge, San Francisco

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

    OpenPrizes listed

  56. Make Something Agents Want

    YC · San Francisco

    2-day build with judging, demos, team formation, a submission deadline; $3,000 cash.

    Open$3,000 cash

  57. ExecuTorch Hackathon

    [SF] HackerSquad · Founders, Inc. | San Francisco Lab, San Francisco

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

    ApprovalPrizes listed

  63. Dell x NVIDIA Hackathon

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

    10-hour build.

    Open

  65. The Builder Base: Buildathon

    Devnovate · San Francisco

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

    ApprovalPrizes listed

  66. 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

  67. AI Tutor Hackathon

    Beta University Events · Stanford

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

    ApprovalPrizes listed

  68. FutureForge Hacks

    FutureForge Hacks · Zoho Corporation, Pleasanton

    13-hour build.

    Open

  69. Festiverse 2026: Diwali Hackathon

    Events · Financial District, San Francisco

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

    OpenPrizes listed

  70. HackwithBay 4.0

    Devnovate · AWS Builder Loft, San Francisco

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

    ApprovalPrizes listed

  71. December 2026

    Mango Hacks

    krishay suresh · Zoho Corporation, Pleasanton

    13-hour build with judging, a submission deadline.

    Approval

  72. Agentic AI Hackathon 2.0 - SF

    Devnovate · AWS Builder Loft, San Francisco

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

    ApprovalPrizes listed

  73. January 2027

  75. DeveloperWeek 2027 Hackathon

    DevNetwork · Santa Clara Convention Center + Online, Santa Clara

    17-day build with a submission deadline; $5,000 prizes.

    Check page$5,000 prizes

  76. February 2027

    SF Hacks

    Major League Hacking · San Francisco

    3-day build.

    Check page