Free compress image tool
Compress image free online with quality control for JPG, PNG, WebP, and AVIF. Client-side only; your files never leave your device.
Large photos slow down websites and fill storage. Our free compress image workflow shrinks file size while you control quality. Pick an output format—JPEG for photos, PNG for graphics, WebP or AVIF for modern web—and adjust the quality slider before you download.
Compression uses the same family of WASM encoders popularized by Squoosh, running locally so you can compress confidential scans or product shots safely.
Try compressing a few versions at different quality levels and compare file size in the results panel before you save.
FAQ
Will compression reduce image quality?
Lossy formats trade some detail for smaller files; you choose the quality level.
Can I compress PNG?
Yes. Export as optimized PNG or convert to JPEG or WebP for smaller sizes.