Open-source sandbox for your product team
Kshitij and Rahul here. We're building Playground, an open-source sandbox that lets your non-technical teams prototype directly on production codebases, without bugging you (developers) to spin up and maintain another repo. The repo is here: https://github.com/B1u3B01t/design-playground. We've been working together for six years. Last year we built an AI design agent because we thought designers were the biggest bottleneck. But we were wrong. After talking to teams, we realised designers, PMs, founders and even sales people all wanted to quickly change and explore flows…
Open-source sandbox for your product team launched on July 1, 2026 with 17 votes, #984 of 24,623 launches that month and more than 90% of that year's launches.
In plain words
Playground is an open-source sandbox that enables non-technical team members—designers, product managers, founders, and sales staff—to prototype and explore user flows directly within production codebases without requiring developers to maintain separate repositories. The tool allows these teams to experiment with real app behavior and appearance while keeping the actual codebase protected from unwanted changes, eliminating the synchronization overhead that comes with maintaining parallel mock environments.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Kshitij and Rahul here. We're building Playground, an open-source sandbox that lets your non-technical teams prototype directly on production codebases, without bugging you (developers) to spin up and maintain another repo. The repo is here: https://github.com/B1u3B01t/design-playground. We've…
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Source: Show HN post ↗ · launch text quoted in part
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