Compress JPEG, PNG, WebP and animated GIF files entirely inside your browser — nothing is uploaded, there is no server in the image path, and no account or credits are needed. A continuous 1-100 quality slider for JPEG and WebP; median-cut palette quantisation with Floyd-Steinberg dithering for PNG, because a canvas PNG writer ignores quality and the palette is the only real size lever; a hand-written LZW reader and writer for GIF, because a canvas cannot write GIF at all, so animations are re-encoded frame by frame with per-frame palettes and correct disposal. Plus resizing, EXIF/GPS/ICC stripping, watermarks, before-and-after comparison, batch downloads and CSV/JSON/Markdown reports — and an anti-enlargement rule that hands your original file back untouched whenever nothing re-encodes smaller. An independent web port of PicLite by amiaoapp — https://github.com/amiaoapp/PicLite, GPL-3.0. This is a derived work and is itself GPL-3.0; it is not the official PicLite release and is not published by, affiliated with or endorsed by the PicLite authors.

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