- How much can I compress an image without visible quality loss?
- It depends on resolution and content. Camera photos usually survive the Medium level well after a sensible resize. Screenshots and UI graphics with fine text hold up better on Low. Judge from the exported file rather than trusting a fixed percentage.
- Does compressing change the file format?
- No. A JPEG stays a JPEG, a PNG stays a PNG, and a WebP stays a WebP, so transparency is never silently flattened. Use the Convert tool first if you want to change format — for example PNG to WebP — then compress.
- Does compressing an image reduce its dimensions?
- No. This tool reduces file size by changing compression settings, not width or height. Use Resize when the photo is far larger than how it will be displayed — that usually saves more bytes than another quality notch.
- Should I resize or compress first?
- Resize first when display size is known (email, blog column, product card). Then compress. Compressing a 12 MP original you will never show at full size wastes quality budget on pixels nobody sees.
- Can I compress PNG images with transparency?
- Yes. Keep PNG as the output to preserve alpha, or convert to WebP when you need transparency with a smaller file. Converting a transparent PNG to JPEG flattens it onto a solid background.
- Is JPEG or WebP better for web compression?
- WebP often beats JPEG at similar visual quality in modern browsers. Prefer JPEG when recipients may open the file in older desktop software, print workflows, or email clients that mishandle WebP.
- Will EXIF metadata be removed when I compress?
- Re-encoding may strip or reduce metadata depending on format and browser. Use the EXIF Viewer to inspect what remains before public sharing, especially for GPS and timestamps.
- Is there a file size limit?
- There is no server-side cap because processing happens on your device. Very large images are limited only by browser memory and available RAM.
- Why did my file barely get smaller?
- Already-optimized JPEGs, noisy night photos, and files that are mostly text screenshots sometimes shrink little. Try resizing, switching to WebP, or confirm the original was not already heavily compressed.
