Seattle Convention Center
Seattle Convention Center – Summit Building, 900 Pine Street 98101
98101
Seattle,
Washington,
United States
10 Jul 2026 04:00 PM
Get TicketsContribute to global open-source projects, build browser extensions, or design accessible web developer tools at this collaborative 48-hour Seattle hackathon. More
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The Seattle Open-Source Web Tools Hackathon is a community-first programming marathon focused entirely on advancing the open-source software ecosystem. Unlike traditional competitive hackathons that focus on business pitches, this 48-hour sprint emphasizes clean documentation, code reusability, collaborative development, and building tools that make web development accessible globally. Participants work in teams or independently to contribute to major open-source web frameworks, build functional browser extensions that enhance developer workflows, or design helpful accessibility plugins for content management systems. Experienced open-source project maintainers line the room, teaching students and junior engineers how to structure professional pull requests, handle code reviews, and maintain public code repositories. The event is a phenomenal learning experience for developers looking to deepen their Git knowledge, collaborate with global engineers, and leave a permanent mark on the open web.