Image Compressor

Compress JPG, PNG, and WebP images in your browser with adjustable quality. Shrink file size before upload or email—nothing leaves your device.

Which image formats can I compress?

JPEG/JPG, PNG, and WebP are supported. Output typically matches the source codec. To change format (for example PNG → WebP), use Image Format Converter before or after compressing.

How does the quality slider affect file size?

Lower quality yields smaller files with more visible artifacts on photos. Start around 75–85% for web thumbnails. Drop further only when portals enforce strict byte limits and you can accept softer gradients.

Does compression change width or height?

No. This tool re-encodes at the same pixel dimensions. Use Image Resizer when you need smaller width/height for thumbnails or marketplace specs, then compress.

Are my images uploaded to a server?

No. Canvas and browser encoding APIs process files locally. Product photos, ID scans, and personal portraits never leave your device.

Can I compress multiple images at once?

Process one file at a time in the current UI. For batches, compress sequentially. When you also need uniform dimensions, resize first so each encode targets the same canvas size.

Why does my PNG barely shrink?

Flat UI screenshots and diagrams often compress poorly as JPEG and only modestly as PNG. Try WebP via Image Format Converter for modern browsers, or resize dimensions before compressing.

Does compression strip EXIF or GPS metadata?

Re-encoding through the browser canvas typically removes most EXIF data, including camera GPS tags—a privacy benefit before publishing customer photos. Do not rely on this for forensic redaction; verify with an EXIF viewer if compliance requires proof of removal.

Should I compress JPEG or convert to WebP first?

For modern browsers, WebP often beats JPEG at the same visual quality. Compress the source format here first to establish a baseline, then try Image Format Converter for WebP if you need another 20–30% savings. Always compare side by side on a real device before replacing production assets.

Is Image Compressor free?

Yes. Free with no login or watermarks.

Should I compress as JPEG, WebP, or keep PNG?

JPEG suits photos; WebP often wins on size at similar quality when browsers and destinations support it; PNG remains better for sharp UI screenshots with few colors or required transparency. Re-export from the original when possible—recompressing an already heavy JPEG stacks artifacts.

When should I stop lowering image quality?

Stop when text in the image becomes fuzzy at phone width or brand colors posterize. For product listings, compare the compressed file against marketplace minimum dimension rules—sometimes you need resize first, not harsher JPEG. Prefer one sensible pass over repeated compressions of the same file.

  • image-resizer
  • image-format-converter
  • remove-background