San Francisco Hackathons

24 - 26
Bitcoin For Your Thoughts is an event aimed to introduce both new and experienced developers to some of the groundbreaking tools that are allowing us to build with the blockchain in ever more innovative and exciting ways. Join us for a weekend of crypto-hacking, meet other blockchain enthusiasts, and get the opportunity to show off your skills to some of the leaders in the space. Your team will also be able to present your project to a panel of judges for a chance to win one of three great prizes! (see details below)
Hosted at Hack Reactor - 944 Market St, San Francisco, CA
24 - 26
Who: Developers, engineers or hackers with a passion for building a blockchain solutions. This event is not for recruiters, business development professionals or wannnapreneurs looking for a co-founder. Your Devpost portfolio will be evaluated prior to acceptance. What: A community led blockchain developer event. Blockhack will bring together a group of blockchain developers to develop Blockchain applications over a course of 48 hours.
Join the largest Hackathon in Silicon Valley, where we expect several thousands attendee and is open to anyone who is seeking to launch an AI based Startup, you will enjoy this chance to mingle and network with potential co-founder, partner, corporate clients or investors along top industry domain experts.
Only open to people 18 or over
2 - 3
Hone your coding skills in a fun and challenging hackathon, beginning on Tuesday, May 2 at noon at the Hilton Union Square. It's all happening during DocuSign's annual customer conference, Momentum 2017. Entry is free for developers, and you’ll have a great time, learn a lot, meet interesting people, and maybe even take home some cool prizes. The grand prize will be $2500, and we’ll also have a prize for each of the hackathon challenges. Winners will be announced on stage Thursday, May 4, and all the fun hackathon activities will take place in the DocuSign DevLounge at Momentum. With plenty of great food, of course! And everyone who attends will get cool swag just for attending. 
Hosted at Hilton San Francisco Union Square - 333 O'Farrell Street, San Francisco, CA
23 - 25
The first ever Global Hackathon series is kicking off with Artificial Intelligence. Whether you are an expert or a newbie in AI, we welcome you to join this event and work with your local innovator community to prototype and find solutions to real world problems. Challenges will be announced globally during the kick off of the event, and attendees can pick one of the challenges to work on either by themselves or with a team. After two days of hacking and prototyping, teams have the option to showcase their projects on stage. Your local audience will pick 3 winners, one for each challenge, prizes TBD. 
13 - 14
- 23 hours
WilHacks is a free 24 hour event at Adrian C. Wilcox High School. Free food and working space will be provided as you will try and compete by yourself or in teams(up to 4 individuals) and create a creative project using programming languages of your choice. You and/or your team will create this project within the 24 hour time limit and your project will be judged by our judges and prizes will be awarded for the three best projects and for the most creative project as well.
Only open to high school students
Hosted at Adrian C. Wilcox High School - 3250 Monroe St, Santa Clara, CA 95051, USA