Will compressing and re-compressing a JPEG reduce quality further?

Yes - each time a JPEG is re-compressed, additional quality is lost. Start from the original uncompressed or lossless source (PNG or RAW) and compress once to your target quality.

Can I compress animated GIFs?

No - GIF animation is not preserved through Canvas conversion. The tool will export the first frame only. For animated GIF compression, use a dedicated GIF optimiser.

Does the Image Compressor upload my files?

No. Everything runs in your browser. Your images are never sent to any server, stored anywhere, or logged.

Which format gives the best compression?

WebP typically gives the smallest file size at equivalent visual quality. JPEG is more universally compatible. PNG is lossless and best for images with text or sharp edges.

Can I compress multiple images at once?

Yes - drop as many files as you like and click Compress All. Each compressed file can be downloaded individually or all at once.

Image Compressor - Free Online Tool to Reduce File Size

DROP IMAGES HERE

or click to browse - JPG, PNG, WebP, GIF

Format: Quality: 82% Max width:

How to Compress Images

Drag image files onto the drop zone, or click the + button to browse - JPEG, PNG, WebP, and GIF are all supported.
Choose your output format (WebP recommended for best compression) and drag the quality slider to set the trade-off between file size and visual quality.
Click Compress All to process every file at once.
Download individual files or use Download All to save them as a zip.

Image Compressor: reduce image file size for web performance and faster loading times instantly. This image size optimizer uses advanced browser-side canvas rendering to shrink JPG, PNG, and WebP files without compromising visual clarity. It is a powerful photo compressor online for developers and content creators who need to batch image compression tasks while maintaining total privacy.

How This Image Size Optimizer Works

Our Image Compressor operates as a dedicated jpg shrinker and png size reducer directly in your web browser. By adjusting the quality slider, you can fine-tune the balance between compression and detail, while the webp optimizer handles modern high-efficiency formats. This free image compression tool ensures that your original files never leave your device, providing a secure, technical solution for all your media optimization needs.

JPEG, PNG, WebP, GIF (first frame), and BMP - all processed entirely in the browser
Quality slider from 1–100%; WebP at 75–85% typically halves file size with no visible loss
Batch compression - process tens of images at once, download individually or as a zip
Nothing is uploaded - your images never leave your device

Frequently Asked Questions

What does the Image Compressor do?

It re-encodes image files through the browser's Canvas API at your chosen quality level and output format, reducing file size. Supports JPEG, PNG, WebP, and GIF (first frame only for animated GIFs). All processing happens in your browser - nothing is uploaded to a server.

What file types can I compress?

JPEG, PNG, WebP, GIF, and BMP. For best results, start from a lossless source (PNG or camera RAW) rather than re-compressing an already-compressed JPEG, which loses additional quality each generation.

Is there a file size limit?

No hard limit, but very large images (50 MB+) may be slow depending on your device's GPU and available memory. Most camera photos compress in under a second.

What quality setting gives the best results?

For photographs, 75–85% in WebP or JPEG gives excellent visual quality with 50–70% file size reduction. For images with text or sharp edges (screenshots, diagrams), use 85–90% or PNG to avoid compression artefacts.

Improve your site's PageSpeed scores by using this Image Compressor to optimize your visual assets before deployment.

Image Compressor online

Reduce file size without leaving your browser - JPG, PNG, WebP supported

What quality setting gives the best results?

Will compressing and re-compressing a JPEG reduce quality further?

Can I compress animated GIFs?

How to Compress Images

How This Image Size Optimizer Works

Frequently Asked Questions

What does the Image Compressor do?

What file types can I compress?

Is there a file size limit?

What quality setting gives the best results?