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Utility1 min read·

Compress Images Online in Your Browser (No Upload Required)

Reduce JPEG, PNG, and WebP file size with a free image compressor that runs locally in your browser — privacy-friendly and fast.

Large images slow websites and emails. A privacy-first image compressor lets you reduce image size without uploading files to a random server.

Why browser-only compression helps

  • Photos never leave your device
  • Faster for small batches
  • Ideal for screenshots and blog assets

Use Tomnitive’s Image Compressor to shrink JPEG, PNG, and WebP with a quality slider.

Practical settings

  • Blog heroes: start around 70–80% quality
  • Thumbnails: can go lower
  • Screenshots with text: keep quality higher to avoid blur

After compressing

Name files clearly, use modern formats when possible, and keep originals if you may need to re-export later.

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