Image & Colour Tools
Image Compressor
Reduce JPEG or WebP file size with an adjustable quality preview.
✓ Free
✓ No account
◉ Runs on this device
Image & Colour Tools
Powering up the tool…
TOOL IMAGE-COMPRE
What this tool does
About the image compressor
Compression and re-encoding happen in the browser, with before-and-after bytes shown honestly. PNG output uses browser encoding and may not become smaller.
How to use it
- Choose the local image.
- Move the quality slider and watch the preview and the before/after byte counts.
- Stop at the smallest size that still looks right — around 0.75–0.85 suits most photos.
- Download the compressed copy.
Useful for
- Get a hero image under a page-weight budget before publishing.
- Shrink photos to fit an upload limit on a form or listing.
- Find the lowest quality setting that still looks clean, with the byte counts in front of you.
Straight answers
Image Compressor FAQ
Why didn’t my PNG get smaller?
PNG is lossless, so the quality slider cannot trade detail for bytes; browser PNG encoding can even come out larger. For real savings, convert photographic PNGs to JPEG or WebP first — the page says this honestly instead of hiding it.
How small should a web image be?
A useful rule: hero images under ~200KB, content images under ~100KB. Your real budget comes from your page-speed measurements, which is what these tools exist to serve.