Image compressor
Reduce image file size, adjust quality and resize photos in your browser. Compare the result and download it without uploading your image.
Your inputs
Your result
Choose an image to get started.
How it works
- The browser decodes the image, optionally reduces its longest side without enlarging it, and re-encodes the pixels in the selected format. Savings = (original bytes − output bytes) ÷ original bytes × 100. Compression varies with image content and browser; no target file size or quality level is guaranteed.
Assumptions and limitations
One static JPEG, PNG or WebP at a time, up to 25 MB and 16 million pixels. JPEG/WebP quality is lossy. PNG uses lossless encoding and ignores quality. JPEG replaces transparency with white. File size may increase. Re-encoding can change metadata and color appearance; keep your original.
Sources
- MDN — Canvas image export Sources reviewed: 2026-10-24
- MDN — image decoding and EXIF orientation Sources reviewed: 2026-10-24
