Guide
Compress image online
Compress JPG, PNG, and WebP in your browser. Files never upload. Free batch ZIP.
Why compress locally?
Cloud compressors often cap free sessions or require an account. SquashImg re-encodes with canvas in your tab — quality slider, format choice, before/after sizes, and ZIP for batches.
Tips
- Start around quality 70–82 for photos destined for the web.
- Switch output to WebP when the destination supports it.
- If the result is larger than the original, we keep the smaller file when types match.