BatchCrunch
Compress & resize media in your browser — nothing uploaded.
BatchCrunch processes folders of video, audio and image files entirely inside your browser tab. It is ffmpeg compiled to WebAssembly, running on your own CPU, so files are never uploaded to a server — no upload size cap and no queue.
Drop a whole folder and set one recipe per media type: compress, convert, crop, resize, rotate, flip and watermark video, audio and images, then rename outputs. Every file shows an estimated output size before it runs and a side-by-side preview after.
Free for 3 files per batch, no account and no email required. A one-time $19 licence removes the batch limit and changes nothing else.
Features
Compress, convert, resize, crop, rotate, flip and watermark video, audio and images in one batch
No upload size cap and no queue — files never leave the tab
Per-file size estimate before the run and a side-by-side preview after
Runs offline once the encoder is cached
Free for 3 files per batch; one-time $19 unlocks unlimited batches
Use Cases
Video creators compressing a week of exports before sending them anywhere
Ecommerce teams resizing, cropping and watermarking product photos to one spec
Developers shrinking screen recordings for docs and issues
Anyone whose material cannot be uploaded to a third party — NDA, medical, legal
Comments
Built this because every online converter capped the upload, put the job in a queue, or wanted a subscription — for a folder of client screen recordings none of them worked. ffmpeg now compiles to WebAssembly and runs multithreaded in a tab, so BatchCrunch processes the whole folder on your own CPU. No upload, no account, one-time $19.
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Comments
Built this because every online converter capped the upload, put the job in a queue, or wanted a subscription — for a folder of client screen recordings none of them worked. ffmpeg now compiles to WebAssembly and runs multithreaded in a tab, so BatchCrunch processes the whole folder on your own CPU. No upload, no account, one-time $19.
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