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.

87 hackathons listed nowLast checked September 30 at 1:03 PM

What’s coming up

September 2026
SEP 20Time on event page
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
SEP 30Wed · 9am–6pm
Women Build Oakland: From Idea to App in One Day
CoCo Noir Labs Calender · Oakland
9-hour build with judging, team formation; prizes listed.
Sold outPrizes listed
SEP 30Wed · 10am–6pm
Agent Hackathon
Solana San Francisco · San Francisco
8-hour build with a submission deadline; $25,000 prizes.
Open$25,000 prizes
SEP 30Wed · 1pm–3pm
Picnic with Builders at Stanford
SF Startup Labs · Stanford University, Stanford
2-hour build with team formation.
Approval
SEP 30Wed–Thu · 16 days
Agentic AI Hackathon: AWS Community Day Bay Area 2026
AWS Community Bay Area · AWS Builder Loft, San Francisco
15-day build with judging, demos, team formation, a submission deadline; $3,200 prizes.
Open$3,200 prizes
SEP 30Wed · 6pm–8:30pm
Omarchy SF
Steve Derico · Cloudflare, San Francisco
3-hour build with demos.
Open
October 2026
OCT 01Thu · 3pm–5pm
Silicon Valley Build Day | Physical AI for Anyone
Echo Gao · Plug and Play Tech Center, Sunnyvale
2-hour build with judging.
Approval
OCT 01Thu · 4pm–8pm
AI GTM Night
Catalyst Bay · San Francisco
4-hour build with team formation.
Waitlist
OCT 01Thu · 5pm–7pm
Oakland Tech Week: The Future of Oakland
Hack the Hood Community · Oakland
2-hour build with demos, team formation.
Approval
OCT 01Thu · 6pm–9pm
Claude Community x Cerebras: Cafe Compute
Cerebras · San Francisco
3-hour build with team formation.
Sold out
OCT 02Fri · 9am–7pm
SF Hacks × GDG AI Hackathon 2026
Daksh Kumar · Student Life Events Center / Annex I, San Francisco
10-hour build.
Open
OCT 02Fri · 9:30am–7:30pm
Real-Time Video Agents Hack - SF
tokens& · San Francisco
10-hour build.
Sold out
OCT 02Fri · 1pm–3pm
Big Earth Hackathon Workshop: Google Earth Engine
Stanford Big Earth Hackathon · Stanford
2-hour build.
Open
OCT 02Fri · 4pm–6pm
MTCafé Popup
MTC Berkeley · IDENTITY Logan Park, Berkeley
2-hour build with team formation.
Open
OCT 02Fri · 5:30pm–8:30pm
Tech Makers Goes West @Mission Robotics - Pitch Night and Drinks
Tech Makers · Mission Robotics, San Francisco
3-hour build with demos.
Approval
OCT 02Fri · 6:30pm–9:30pm
Jev Hack/Demo Night | Birds of a Feather
Featherless.ai · San Francisco
3-hour build with demos.
Open
OCT 03Time on event page
The Hidden Genius Project | Oakland Tech Week Youth Hackathon 2026
eventbrite.com · Henry J. Kaiser Center for the Arts, Oakland
24-hour build with judging.
Check page
OCT 03Time on event page
Dublin Hacx
Emerald High School · SAP Office — San Ramon, CA, San Ramon
2-day build with a submission deadline; $2,250 prizes.
Check page$2,250 prizes
OCT 03Sat–Sun · 2 days
Stanford Hub - 7th Hack-Nation Global AI Hackathon
Hack-Nation's Global AI Hackathons · Palo Alto
23-hour build.
Open
OCT 03Sat · 9am–9pm
The AI Commerce Gallery - Hackathon | Walt Disney Family Museum
AI Valley · San Francisco
12-hour build with team formation.
Check page
OCT 03Sat · 9am–5pm
Supabase Select 2026 Hackathon
Supabase Community Events · 580 20th St, San Francisco
8-hour build.
Open
OCT 03Sat · 9am–6pm
The Multiplayer Coding Hackathon
Coshell · Mission District, San Francisco
9-hour build.
Open
OCT 04Sun · 2pm–4pm
Build Your First App with AI
NextGenInitiative Silicon Valley · Silkroad Innovation Hub, Menlo Park
2-hour build with judging, demos; prizes listed.
OpenPrizes listed
OCT 05Time on event page
Big Earth Hackathon Guest Speaker Session: Seth Schalet (Santa Clara FireSafe Council)
Stanford Big Earth Hackathon · Santa Clara
1-hour build.
Approval
OCT 05Mon · 5pm–9pm
Model Training Night by Overmind, Daytona & Doubleword #SFTechWeek
Overmind · House of AI, San Francisco
4-hour build with judging, team formation; prizes listed.
OpenPrizes listed
OCT 07Time on event page
Big Earth Hackathon Guest Speaker Session: David Shew (Wildfire Defense Works)
Stanford Big Earth Hackathon · Stanford
1-hour build.
Approval
OCT 07Wed · 3pm–6pm
Pax Silica Hackathon: SF Tech Week
Business Sweden · 2 Sacramento St Street Level, Embarcadero 2, 2 Embarcadero Ctr, San Francisco, CA 94111, USA, San Francisco
3-hour build.
Check page
OCT 07Wed · 3pm–6pm
Pax Silica Hackathon: SF Tech Week
Builderbase Hackathons · 2 Embarcadero Ctr, San Francisco
3-hour build with demos, team formation.
Sold out
OCT 07Wed · 5pm–8pm
Hardware hackathon: turn a vintage toy into a voice agent
AssemblyAI · San Francisco
3-hour build with demos.
Approval
OCT 07Wed · 6pm–9pm
Multiplayer Hackathon by Party (SoMa)
Party · Mid-Market, San Francisco
3-hour build.
Open
OCT 08Thu · 10am–4pm
Spaces by WZRD Tech: Agency Build Day | #SFTechWeek
5-Dee Studios · San Francisco
6-hour build with demos, team formation; prizes listed.
ApprovalPrizes listed
OCT 08Thu · 11am–7pm
AI Hackathon: Sales Copilot AI
TatianaSF · Northern Waterfront, San Francisco
8-hour build with judging, demos, team formation; prizes listed.
OpenPrizes listed
OCT 08Thu · 5pm–9pm
Vibe Coach Hack Night - #SFTechWeek
[SF] HackerSquad · San Francisco
4-hour build.
Approval
OCT 08Thu · 6pm–9pm
Code. Fix. Drink. Repeat. with WeAreDevelopers & Snyk
WeAreDevelopers · 260 California St suite 600, San Francisco
3-hour build with demos, team formation; prizes listed.
Sold outPrizes listed
OCT 09Fri · 9:30am–7:30pm
Cyberdefense Hackathon
tokens& · Financial District, San Francisco
10-hour build.
Open
OCT 09Fri · 6pm–9pm
Find a Cofounder, Help or Join a Tech Startup
Startup Oasis · San Francisco
3-hour build with team formation; prizes listed.
OpenPrizes listed
OCT 10Time on event page
#SFTechWeek - Decision-Grade AI @ Stanford ⚡️ A Buildathon on LLM Trust
ezio · Industrious Palo Alto Page Mil, Palo Alto
24-hour build with a submission deadline.
Check page
OCT 10Sat · 9:30am–6pm
Multiplayer Hackathon by Party (Peninsula)
GLO · Centennial, Redwood City
9-hour build.
Open
OCT 10Sat · 10am–8pm
AI-Native Startup Hackathon
BondHaus · San Francisco
10-hour build with judging, demos, team formation.
Open
OCT 11Sun · 9am–8pm
AI-Native Startup Hackathon | #SFTechWeek
Tech Events SF | BridgeUs · Lower Haight, San Francisco
11-hour build.
Open
OCT 11Sun · 9am–6pm
Multi Model Hackathon - #SFTechWeek
Builderbase Hackathons · Mid-Market, San Francisco
9-hour build.
Open
OCT 11Sun · 9am–7pm
Tech Week Hackathon
Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco, SF
10-hour build.
Open
OCT 12Mon · 10am–7pm
Build AI agents that own their inference - #SFTechWeek
[SF] HackerSquad · AWS Builder Loft, 2nd Floor, 525 Market St, SF
9-hour build with judging, demos.
Approval
OCT 12Time on event page
Big Earth Hackathon Guest Speaker Session: Joaquin Ramirez (Technosylva)
Stanford Big Earth Hackathon · Stanford
1-hour build.
Open
OCT 12Mon · 1pm–5pm
Company Brain Hackathon: Build an AI Agent That Knows Your Organization
TechEquity Ai - Silicon Valley · 135 Constitution Dr, Menlo Park
4-hour build.
Open
OCT 13Tue · 9am–7pm
EMBEDDED SF: CraftifAI Physical AI Hackathon
Devnovate · San Francisco
10-hour build with demos, team formation; $1,000 cash.
Approval$1,000 cash
OCT 13Tue · 9:30am–7pm
AWS Community Day - AI Edition
AWS Community Bay Area · AWS Builder Loft, San Francisco
10-hour build with demos, team formation; $3,200 prizes.
Open$3,200 prizes
OCT 14Wed · 9:30am–5:30pm
The Build: Hackathon
Devnovate · San Francisco
8-hour build with judging, demos; prizes listed.
ApprovalPrizes listed
OCT 14Wed · 10am–6pm
Fast Forward
Vercel Events · San Francisco
8-hour build with judging, demos, team formation, a submission deadline.
Open
OCT 14Wed · 10am–8pm
SF Frontier Hackathon: Build your Autonomous Code Factory
Obvious Community Events · San Francisco
10-hour build with demos, team formation; $30k prizes.
Approval$30K prizes
OCT 14Time on event page
Big Earth Hackathon Guest Speaker Session: Wei-ting Chen (Stanford Community Engagement)
Stanford Big Earth Hackathon · Stanford
1-hour build.
Open
OCT 15Thu · 6pm–9pm
Venture Night@TechCrunch Disrupt 2026 – The Ultimate Startup & Investor Experience!
TechEmbassy · FOCUS Innovation Studio, San Francisco
3-hour build with judging, team formation; $25,000 prizes.
Check page$25,000 prizes
OCT 15Thu · 6pm–9pm
Multiplayer Hackathon by Party (Peninsula)
Party · Centennial, Redwood City
3-hour build.
Open
OCT 16Fri–Sat · 2 days
De Anza Hackathon 5.0
De Anza Hacks · De Anza College, Cupertino
2-day build.
Open
OCT 16Fri–Sun · 3 days
Maritime Dual-Use Hackathon
Personal · SoMa, San Francisco
2-day build.
Open
OCT 17Time on event page
Arm + ExecuTorch: Edge AI Challenge
arm · San Francisco State University, San Francisco
2-day build with a submission deadline.
Check page
OCT 17Sat–Sun · 2 days
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
OCT 17Sat · 9am–10pm
The Recursive Agents Hackathon
Cerebral Valley · San Francisco
13-hour build with team formation; $25,000 cash.
Open$25,000 cash
OCT 17Sat–Sun · 2 days
ExecuTorch Hackathon
[SF] HackerSquad · Founders, Inc. | San Francisco Lab, San Francisco
2-day build with demos, team formation; prizes listed.
ApprovalPrizes listed
OCT 19Mon · 9:30am–8:30pm
Universal Hackathon - Create Your Own AI Workforce | AWS Builder Loft
Medallion XLN Events · AWS Builder Loft, San Francisco
11-hour build with demos, team formation.
Open
OCT 19Mon · 9:30am–8:30pm
Universal Celebration Hackathon
Kylon.io · AWS Builder Loft, San Francisco
11-hour build.
Check page
OCT 20Tue · 9:30am–7pm
AI Startup Challenge Hackathon: The Pre-Event of SF AI Summit
Devnovate · San Francisco
10-hour build with judging, demos, team formation, a submission deadline; prizes listed.
ApprovalPrizes listed
OCT 21Wed–Fri · 3 days
Startup Sprint: Prove you're fundable
Proving Ground · Palo Alto
3-day build with judging, team formation, a submission deadline; prizes listed.
ApprovalPrizes listed
OCT 21Wed · 5:30pm–9pm
Zero to Hundred: GTM Vibe Coding Buildathon
Personal · Downtown North, Palo Alto
4-hour build.
Open
OCT 23Fri · 9am–5:30pm
Multi-Model Hackathon @AWS Builders Loft
Beta University Events · San Francisco
9-hour build with judging, demos, team formation; prizes listed.
ApprovalPrizes listed
OCT 23Fri–Sun · 3 days
Cal Hacks 13.0
Major League Hacking · San Francisco
3-day build.
Check page
OCT 23Fri–Sat · 2 days
Cleantech Hackathon at Stanford
Personal · Stanford
2-day build.
Open
OCT 23Fri · 6pm–8pm
Personalized Medicine Builders: Demos, Discussion and Social
Research to the People Patient Hackathons · 81 Langton St, San Francisco
2-hour build with demos.
Approval
OCT 24Sat · 9:30am–8pm
Kane CLI Hack Day, supported by OpenAI
TestMu AI · Financial District, San Francisco
11-hour build.
Open
OCT 24Sat · 11am–5pm
Local Align #3 — AI × GTM Growth Hackathon & Social
Local Align · Santa Clara
6-hour build.
Open
OCT 25Sun · 9am–7pm
Dell x NVIDIA Hackathon
Frontier Tower SF · Frontier Tower @ Spaceship 995 Market Street, San Francisco
10-hour build.
Open
OCT 25Sun · 10am–5pm
Bay Area AI+car hackathon
DIY Robocars · Circuit Launch, Oakland
7-hour build.
Open
OCT 30Fri · 9:30am–5:30pm
The Builder Base: Buildathon
Devnovate · San Francisco
8-hour build with demos, team formation; prizes listed.
ApprovalPrizes listed
November 2026
NOV 03Tue–Fri · 4 days
TechEquity Ai Summit 2026: Talks + AI Agent Workshops
TechEquity Ai - Silicon Valley · 135 Constitution Dr, Menlo Park
4-day build with demos.
Check page
NOV 04Wed · 1pm–7:30pm
Company Brain Hackathon: Build an AI Agent That Knows Your Organization
TechEquity Ai - Silicon Valley · 135 Constitution Dr, Menlo Park
7-hour build.
Open
NOV 06Time on event page
HackStorm 3.0: Sense, Think and Act
HackStorm · San Francisco, California, USA, San Francisco
3-day build with a submission deadline; $5,200 prizes.
Check page$5,200 prizes
NOV 06Fri · 1pm–6pm
Hack the Feed: Creator Tools Hackathon with Oriane, GMI Cloud & Lovable at Amplitude HQ!
Oriane.xyz Video Intelligence · Amplitude Analytics, San Francisco
5-hour build with demos, team formation; $300 prizes.
Approval$300 prizes
NOV 06Fri · 5pm–8pm
Qualcomm UNO Q Hack Night #3
[SF] HackerSquad · Qualcomm, Santa Clara
3-hour build.
Open
NOV 07Sat · 9am–5pm
AI Tutor Hackathon
Beta University Events · Stanford
8-hour build with demos, team formation, a submission deadline; prizes listed.
ApprovalPrizes listed
NOV 21Time on event page
FutureForge Hacks
Future Forge · Pleasanton
24-hour build with a submission deadline.
Check page
NOV 24Tue · 9:30am–6:30pm
HackwithBay 4.0
Devnovate · AWS Builder Loft, San Francisco
9-hour build with demos, team formation, a submission deadline; prizes listed.
ApprovalPrizes listed
NOV 27Fri · 9:30am–7:30pm
Physical AI Hack
tokens& · San Francisco
10-hour build with judging, demos, a submission deadline.
Approval
December 2026
DEC 15Tue · 9:30am–6:30pm
Agentic AI Hackathon 2.0 - SF
Devnovate · AWS Builder Loft, San Francisco
9-hour build with demos, team formation; prizes listed.
ApprovalPrizes listed
DEC 29Time on event page
ODSC AI x NEBIUS | Hackathon
eventbrite.com · Hyatt Regency San Francisco Airport, Burlingame
24-hour build.
Check page
January 2027
JAN 12Tue · 5pm–8pm
⚕️ HealthTech Week ⚕️ Startup Pitch Competition (@JPM) in Partnership MedStartr
⚕️SF HealthTech Week⚕️ Events · The Foundry SF, San Francisco
3-hour build with judging, demos.
Open
JAN 25Time on event page
DeveloperWeek 2027 Hackathon
DevNetwork · Santa Clara Convention Center + Online, Santa Clara
18-day build with a submission deadline; $5,000 prizes.
Check page$5,000 prizes
February 2027
FEB 19Fri–Sun · 3 days
SF Hacks
Major League Hacking · San Francisco
3-day build.
Check page

Everything worth building at,gathered in one place.

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What’s coming up

September 2026

October 2026

November 2026

December 2026

January 2027

February 2027

Everything worth building at,
gathered in one place.