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flowtools/Image Compressor

Image Compressor

Compress images in your browser. Files never leave your device.

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How it works

  1. 1

    Drop your images — they never leave your device.

  2. 2

    Adjust quality with the slider and pick an output format.

  3. 3

    Download compressed images individually or all at once.

Why choose FlowTools

  • 100% client-side — your images never get uploaded to any server.
  • Batch compress multiple images at once with one click.
  • Supports JPEG, PNG, and WebP with adjustable quality control.
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Frequently Asked Questions

You control the quality slider (10–100%). At 80%, most images look identical to the original but are significantly smaller.
JPEG, PNG, and WebP. You can also convert between formats during compression.
No hard limit. Since everything runs in your browser, very large images may take a moment to process.
No. All compression happens locally in your browser using the Canvas API. Your files never leave your device.