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ShrinkVid

Compress JPG / JPEG Images

Drop your JPGs below. They are re-encoded with MozJPEG at quality 75, which usually cuts file size by 40–80% with no visible difference. Batch-compress as many as you like.

Processed on your device — files are never uploaded.

How to compress JPG / JPEG images

  1. Drop JPG files.
  2. Adjust quality (70–80 recommended).
  3. Optionally set a max width.
  4. Compress and download.

Why MozJPEG?

MozJPEG is Mozilla’s JPEG encoder. It produces standard JPG files that open everywhere but are typically 5–15% smaller than other encoders at the same visual quality, thanks to trellis quantisation and progressive scans.

Want even smaller files?

Converting to WebP usually saves another 25–35% and is supported by every modern browser.

Private by design

ShrinkVid never uploads your files. The page loads once, then all decoding and encoding happens on your device using the browser’s built-in WebCodecs API (hardware-accelerated video) and WebAssembly image codecs. That makes it safe for personal, confidential or work files — and there is no queue, no file size cap and no watermark. Read how it works.

Frequently asked questions

What JPG quality should I use?

75 is a great default. 80–85 for photography portfolios, 60–70 for thumbnails and blog images.

Are my files uploaded to a server?

No. ShrinkVid runs entirely in your browser. Files are read and encoded on your own device with WebCodecs and WebAssembly, so nothing is uploaded, stored or seen by anyone else. You can even disconnect from the internet after the page loads and it keeps working.

Is it really free? Is there a watermark or file size limit?

It is completely free with no watermark, no sign-up and no server-side file size limit. Because processing happens on your device, the only practical limits are your device’s memory and speed.

Last updated · by the ShrinkVid team