Jin Image Tools — Free Online Image Compression & Format Conversion
Compress and convert images to AVIF, WebP, JPEG, JPEG XL and PNG right inside your browser. Files never get uploaded — everything runs locally, so your pictures stay private.
What it does
- Adjustable quality with an instant estimate of how much smaller each file gets
- Batch processing: drop an entire folder and download everything in one click
- AVIF, WebP and JPEG XL encoding powered by WebAssembly — no server round-trip
- Keeps working offline once the page has loaded
How to use it
- Choose an output format and drag the quality slider to the size you want.
- Drop your images into the drop zone, or click to pick files.
- Download a single result, or grab all of them at once.
Note: the compressor itself requires JavaScript. Enable it to start converting images.
More guides: Image Compression Blog