Are my photos uploaded to a server?

No. Compression runs as JavaScript in your browser. The site keeps working even if you go offline after it loads.

What quality setting should I use?

80% is visually lossless for most photos. Drop to 60–70% for maximum savings on web images; keep 90%+ for print.

Can I compress PNG screenshots?

Yes — but PNG is lossless, so for big savings convert screenshots to WebP or JPG here, which typically shrinks them 5–10×.

Compress Images

Cut file size with a quality slider and see the savings before you download.

Drop images here, or click to browse

JPG · PNG · WebP — processed on your device, never uploaded

OutputQuality80%

Smaller files, visible control

Drop in images, pick a quality level, and the tool re-encodes each one right on your device — showing the size before and after so you know exactly what you saved. Batches download as a single ZIP.

Compressing to JPG or WebP gives the biggest savings; WebP typically lands 25–35% smaller than JPG at the same visual quality. Everything runs locally in your browser — photos are never uploaded, so personal pictures, ID scans and client work stay on your device.

Why compress images at all?

Image weight is the #1 cause of slow pages and oversized email attachments. A camera photo of 6 MB usually compresses below 1 MB with no visible difference at screen sizes — faster uploads, faster sites, happier recipients.

Frequently asked questions

Are my photos uploaded to a server?: No. Compression runs as JavaScript in your browser. The site keeps working even if you go offline after it loads.
What quality setting should I use?: 80% is visually lossless for most photos. Drop to 60–70% for maximum savings on web images; keep 90%+ for print.
Can I compress PNG screenshots?: Yes — but PNG is lossless, so for big savings convert screenshots to WebP or JPG here, which typically shrinks them 5–10×.