Image Compressor

Reduce image file size with adjustable quality. Supports JPEG, PNG, and WebP — everything runs locally in your browser.

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About Image Compressor

Reduce image file size by adjusting compression quality, resizing dimensions, or converting to a more efficient format like WebP. Processing happens entirely in your browser — your images never leave your device.

Features

  • Lossy compression with adjustable quality for JPEG and WebP
  • Convert between JPEG, PNG, and WebP formats
  • Optional max-width resize to shrink dimensions
  • Instant before/after size comparison
  • Drag-and-drop or click to upload
  • 100% client-side — no data leaves your browser

How to use

  1. 1Drop an image or click to browse for a file.
  2. 2Adjust quality, output format, and optional max width.
  3. 3Click Compress to generate the optimized image.
  4. 4Download the result or adjust settings and re-compress.

Frequently Asked Questions

Is my image uploaded to a server?
No. All compression runs entirely in your browser using the Canvas API. Your images never leave your device.
Which format gives the smallest file size?
WebP generally produces the smallest files at equivalent visual quality. JPEG is a close second for photos.
Why is the quality slider disabled for PNG?
PNG is a lossless format — it doesn't support quality reduction. To reduce PNG file size, resize the image or convert to WebP/JPEG.
Can I compress multiple images at once?
Currently the tool handles one image at a time. Drop a new file to replace the current one and compress again.

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