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Work · May 12, 2026

VidShift

I built a video converter/toolkit that processes everything locally in the browser using WebAssembly (via the Mediabunny library and WebCodecs). No files are uploaded to any server. The whole thing is a static site on Cloudflare Pages. It even works offline via a service worker. Tools included: format conversion (MP4/WebM/MKV/MOV/etc.), compression, trimming, video-to-GIF, MP4-to-MP3, mute, rotate/flip, speed change, and frame extraction. Best experience is on Chrome/Edge due to broader WebCodecs support. Safari and Firefox work but have more limited codec…

VidShift launched on May 12, 2026 with 3 votes, #3,449 of 20,538 launches that month and more than 50% of that year's launches.

What it does

VidShift is a free video and audio toolkit that runs 100% in your browser. Convert, compress, trim, mute, rotate, change speed, extract audio or frames, and create GIFs. No uploads, no sign-up, no watermarks, no ads. Your files never leave your device. Supports MP4, WebM, MKV, MOV, MP3, FLAC and 12+ formats. Built with WebAssembly for native-speed processing.

Free online video and audio converter - MP4, WebM, MKV, MOV, MP3, FLAC and 12+ formats. Runs in your browser - no upload, no watermark. Try it now.

For best results and widest format support, use Chrome or Edge on a desktop computer . Other browsers use a different engine with limited codec support. Drag a file onto the upload area or click Select Video. VidShift accepts MP4, MOV, MKV, WebM, OGV, M4V, MPEG and audio formats like MP3, FLAC and OGG. Pick a video format (MP4, WebM, MOV, MKV, M4V, MPEG, OGV) or an audio-only format (MP3, AAC, WAV, FLAC, OGG). You can also change the resolution and quality before converting. Click Convert and wait for processing to finish. Everything runs locally in your browser - your file is never uploaded. When it is done, download the converted file. Different devices, editors and platforms expect…from vidshift.io

In the maker’s words, at launch

I built a video converter/toolkit that processes everything locally in the browser using WebAssembly (via the Mediabunny library and WebCodecs). No files are uploaded to any server. The whole thing is a static site on Cloudflare Pages. It even works offline via a service worker. Tools included: format conversion…

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