DEV Online Hackathons and Writing Challenges - DEV Community

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DEV Challenges are mini Hackathons that provide a fun opportunity for you to build up experience using new tools or to publicly show off your best skills to the community, potential employers and more.
Join these challenges while they’re open.
Build an experience with the Presage SmartSpectra SDK that responds to real-time human signals captured through a camera.
Built something at an MLH hackathon? Publish your project story on DEV with #mlhacks for another chance to win.
Explore the complete archive of previous DEV challenges.
Challenge 5 of 5 in our Hacktoberfest DEV Challenges. One prompt, a new theme every week.
Challenge 4 of 5 in our Hacktoberfest DEV Challenges. One prompt, a new theme every week.
Challenge 3 of 5 in our Hacktoberfest DEV Challenges. One prompt, a new theme every week.
Challenge 2 of 5 in our Hacktoberfest DEV Challenges. One prompt, a new theme every week.
Challenge 1 of 5 in our Hacktoberfest DEV Challenges. One prompt, a new theme every week.
Build a benchmark, run it against real models, and tell us what you found.
Build an AI agent on structured content, or vibe-code an app with Sanity behind it.
A short-form challenge that fits into your weekend!
A short-form challenge that fits into your weekend!
Flex your CSS and JavaScript Skills!
Help us crush bugs and win amazing prizes this summer!
A short-form challenge that fits into your weekend!
Build a game inspired by June and its many celebrations.
Finally finish what you started!
Tune into Google I/O and start exploring!
Build and write with an open source AI agent.
Build and write with Google's latest open models
Tune into Google Cloud NEXT and start exploring!
A short-form challenge that fits into your weekend!
Share your OpenClaw experience with the community!
Build something completely useless or silly!
A Celebration of Gender Equity in Software Development
Centralize your workflow!
A short-form challenge that fits into your weekend!
Reflect on what you've built with Google Gemini and share your story!
Your terminal's new sidekick!
Manage your entire search infrastructure using natural language!
Build or update your developer portfolio using Google AI!
Record a 1-minute pitch video and show off your project
Build production-ready backends at AI speed.
From zero to project in 10 seconds!
Share your journey from the 5-Day AI Agents Intensive Course
Experiment with the first database built for agents 🤖
Flex your CSS and JavaScript Skills!