Batch Image Compressor
Compress and resize many images in your browser, then save them back into a local folder or download as ZIP. Fully client-side and private.
Folder write-back requires a Chromium desktop browser. Other browsers fall back to ZIP download.
80
Higher is faster but uses more memory.
Compress & save to a folder
Choose a local folder (Chrome/Edge/Opera on desktop) and TinyOpt reads, compresses, resizes and writes the results back in place — powered by the File System Access API. No files are uploaded.
Need Batch Processing? Get the Desktop App
The online tool is great for quick, one-off tasks. For heavy daily workloads, our desktop app offers much more power.
| Feature | Online Tool | TinyOpt Desktop |
|---|---|---|
| Batch Processing | One image at a time | Unlimited batch processing |
| Watermark | Basic text & image | Advanced placement with drag preview |
| Format Conversion | JPEG / PNG / WebP | 9 formats (incl. AVIF, ICO, PDF) |
| Batch Rename | Not available | Templates, sequences, date stamps |
| Compression Engine | Browser-based (WASM) | TinyPNG API (industry standard) |