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Image Compressor

Compress multiple JPG, PNG or WebP images at once in your browser. Set the quality and maximum width, then download individually or all together.

Files are processed locally in your browser and are not permanently stored.

Drag & drop your files here

JPG, JPEG, PNG or WebP · multiple files · up to 20 MB each

Compression happens entirely in your browser with the Canvas API. Your images are never uploaded and nothing is stored.

How it works

  1. 1Drop in one or more images.
  2. 2Set the compression quality and a maximum width.
  3. 3Compress and review the size saved per file.
  4. 4Download files individually or all at once.

Features

  • Batch compression, no file count limit.
  • Quality from 30% to 95% and max width up to 4000 px.
  • Per-file and total before/after sizes with percentage saved.
  • Remove single files or clear the whole batch.
  • Nothing leaves your device.

Examples

  • Ten 4 MB phone photos at 70% and 2000 px → typically 300–500 KB each
  • A 3 MB screenshot → around 200 KB
  • Product photos for a store page → 70–80% smaller on average

How much compression is too much

Between 70% and 85% quality most photos are indistinguishable from the original at normal viewing sizes. Below 60% you start to see blocking in skies and skin tones. Reducing the maximum width usually saves more than dropping quality, because a 4000 px image displayed at 1000 px is wasting three quarters of its data.

Where compression matters most

  • Website and landing page images — the biggest single win for load time.
  • Email attachments limited to 25 MB.
  • Marketplace and store listings with per-image size caps.
  • Anything uploaded over mobile data.

Tips

  • Resize first with the Social Media Image Resizer, then compress.
  • Keep the originals — compression is not reversible.
  • Try WebP output for the smallest files.

Frequently Asked Questions

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