Image Compressor
Compare original and encoded file sizes before downloading a locally compressed image.
✓ Processed on your device; never uploaded to our server.
How it works
Choose the image
Start with the cleanest source appropriate for its use.
Set quality
Preview the balance between detail and file size.
Verify the saving
Compare original and output size, then download.
✓Before / after size✓Adjustable quality✓Local compression
Technical limits and privacy
JPG cannot preserve transparency. AVIF decode and encode support varies by browser. Above 12 MP, optional low-memory mode reduces the working and output copy; the default mode preserves full resolution.