← Back to Home

Image Compression

Compress JPG, PNG, WebP, GIF, and AVIF images directly in your browser. Use the quality slider to balance file size against visual quality, choose a maximum output width to reduce dimensions, and pick your preferred output format. The compressed file downloads straight to your device — nothing is uploaded to any server.

Best for: reducing image attachments, optimising website assets, shrinking photos before sharing.
Input: JPG, PNG, WebP, GIF, AVIF, and any browser-supported image format.
Output: compressed JPEG, PNG, or WebP file.

Choosing the right quality setting

Quality 80% is the sweet spot for most photos — visually near-identical to the original but typically 3–5× smaller. For web thumbnails, 60–70% is fine. For print archival, keep quality at 90%+. PNG is lossless so quality only affects JPEG and WebP output.

Privacy

All compression happens in your browser using JavaScript and the browser-image-compression library (with a Canvas API fallback). No image data ever reaches ConvertPDF servers.

Related tools