BatchCrunch

What it does

Drop a folder of video or audio files and BatchCrunch compresses or converts all of them using your own machine. It's ffmpeg compiled to WebAssembly, running inside the tab — your files are never uploaded, so there's no size limit and no waiting on someone else's server. No account, no subscription. 3 files per batch free; one-time $19 unlocks unlimited batches.

Batch compress, convert, resize, crop and watermark video, audio and images in your browser. Nothing is uploaded, so there is no queue and no server size limit.

Convert, crop, rotate and watermark video, audio and images in your own browser. No account, no queue, no server size limit. There is no upload endpoint to send your files to. The encoder is FFmpeg compiled to WebAssembly and it runs inside this page, on your own processor. Nobody is paying for bandwidth on your behalf, so a hundred files cost the same as one and the only ceiling is what your browser can hold in memory. You can verify it yourself: open the network panel, run a batch, and watch it stay silent — or switch the network off entirely once the encoder has been cached. Video, audio and images in one queue: compression to a quality target, format conversion, crop and aspect changes,…from batchcrunch.com

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