Image Compressor
Compress JPG, PNG and WEBP images to a smaller file size without visible quality loss.
Smaller images, same visual quality
This compressor re-encodes your image at an optimized quality level, typically cutting file size 50–80% with no visible difference at normal viewing sizes. Everything happens in your browser using the Canvas API — your photos are never uploaded to any server, which also makes it faster than upload-based compressors.
When you need this
Web pages: images are the heaviest part of most sites; compressing them is the single biggest speed win and directly helps SEO (Core Web Vitals). Upload limits: government portals, job applications and college forms often cap files at 100–200 KB. Email: attachments over 10–25 MB bounce. Storage: compressed photo archives take a fraction of the space.
How much should you compress?
For photos on websites, quality 70–80% is the sweet spot — dramatically smaller with no visible artifacts. Going below 50% starts to show blockiness in gradients (skies, skin). For screenshots with text, compress less aggressively or use PNG, as text edges show artifacts first.
JPG vs PNG vs WEBP for size
For photographs, JPG and WEBP compress far better than PNG. If your photo is a PNG, converting it to JPG or WEBP first (use our converters) often saves more than compression alone. Keep PNG only for graphics needing transparency or sharp text.
Frequently asked questions
Will compression make my image blurry?
At moderate settings, no — the algorithm discards detail your eye can't see at normal sizes. Heavy compression (below ~50% quality) eventually shows artifacts, especially in smooth gradients.
Are my photos uploaded to your server?
No — compression runs entirely in your browser. The image never leaves your device, which is also why there are no file size limits or queues.
Can I compress to an exact size like 100 KB?
Run the compressor and check the result; if it's still too large, compress the output again or reduce dimensions with the image resizer first — halving dimensions quarters the file size.
Does compressing repeatedly keep reducing size?
With diminishing returns and accumulating quality loss. Better to compress once from the original at the right level than recompress multiple times.