Image Compressor
Compress images entirely in your browser — no upload, no server, no storage. Supports JPEG, PNG, WebP.
Upload an image on the left to begin
- —Runs entirely in your browser — no upload
- —Up to ~90% size reduction
- —WebP, JPEG, PNG output
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Image compression — a quick guide
WebP delivers 25–35% smaller files than JPEG at equal quality. Use JPEG for wide compatibility, PNG only when transparency is required.
Below 80% compression artefacts become visible. Above 90% savings drop dramatically. For thumbnails 60–70% is fine.
Serving a 3000px image in a 600px container wastes 4× the bandwidth. Resize to the actual display dimensions.