14 free dev tools that run entirely in your browser — no signup, no upload

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AI Fusion Summary

A developer created EditKitz, a collection of free, single‑purpose video tools that render MP4s entirely in the browser using Remotion and WebCodecs. Users can generate clips like countdowns or typed text without signing up, uploading, or watermarks, keeping the video data client‑side. The post explains the underlying architecture, highlighting how client‑side rendering simplifies tasks such as creating film leaders and subscriber counters.