Enter a target size like 100KB and quality is tuned automatically to fit. Perfect for application forms, upload limits, and email attachments. Batch compress many photos at once — without uploading anything.
Drop your photos, pick a target size (KB) or a quality level, and download everything as a ZIP.
Upload forms that demand "under 100KB", portals capped at 300KB, attachments limited to 1MB — the target size mode handles these fastest. Type the number and the compressor binary-searches the quality setting to fit under it, stepping the resolution down only if quality alone can't get there.
For the best quality-to-size ratio, choose WebP output — typically 20–40% smaller than JPEG at the same visual quality. Re-encoding also strips GPS and camera metadata, which makes compressed photos safer to share (see EXIF remover). Need different pixel dimensions instead? Use Resize.
At quality 0.7–0.85 the difference is hard to spot on screen. Target size mode automatically picks the highest quality that still fits your limit.
Yes — switch to target size mode and enter 100. The tool searches quality levels to land under 100KB, and if the original is too large for quality alone, it gently reduces resolution until it fits.
PNG is lossless, so there is no quality dial. For photos (rather than screenshots or logos), converting to WebP or JPEG reduces size far more effectively.
No. Everything runs in your browser; files are never sent to or stored on a server. It even works offline.