VidStudio, a browser based video editor that doesn't upload your files

In plain words

VidStudio is a browser-based video editor that keeps all files and projects on your device with no accounts or uploads required. It offers multi-track editing, frame-accurate seeking, and MP4 export with support for audio, video, image, and text tracks. The editor works on mobile devices and uses hardware-accelerated decoding for responsive playback, with FFmpeg handling format conversion and final encoding. Projects are stored locally in IndexedDB, and background processing keeps the interface responsive.

written from the facts on this page · September 2026

From the sources

VidStudio runs powerful video tools entirely in your browser so files never leave your device. It uses WebAssembly to deliver fast, private processing without installs or accounts. Resize and crop for social platforms, trim clips, normalize formats, compress to target sizes, and generate thumbnails. Extract and mix audio, add watermarks, and create or burn in subtitles and animated text.

Free online video editor that runs in your browser. Multi-track timeline, frame-accurate seek, powered by WebCodecs and FFmpeg WASM. Your files never leave your device.

This is a video editor that runs entirely inside your browser tab. When you drop a file onto the page, the bytes stay on your device. There is no upload step, no cloud rendering queue, and no account to create. The timeline, the preview, and the final export all run against WebCodecs and a build of FFmpeg compiled to WebAssembly, so the codebase behind the editor is the same one that powers professional post-production pipelines, just running locally. The project picker below lists anything you have already started, stored in your browser as IndexedDB. Clicking New Project spins up a fresh timeline ready for media, transforms, text tracks, and a multi-take source monitor. Projects are…from vidstudio.app

In the maker’s words, at launch

Hi HN, I built VidStudio, a privacy focused video editor that runs in the browser. I tried to keep it as frictionless as possible, so there are no accounts and no uploads. Everything is persisted on your machine. Some of the features: multi-track timeline, frame accurate seek, MP4 export, audio, video, image, and…

• OS
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