Original
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Lossless Image Compression Online
Compress PNG, JPEG, WebP, and GIF images without quality loss. This browser tool starts with metadata and container cleanup, then runs a format-specific lossless optimization pass.
When current browsers do not expose a stronger true-lossless recompression path for a format, the page says so directly instead of pretending a lossy re-encode is lossless.
Your image is optimized locally in your browser. exif.tools does not upload the file to our server for this page.
Optimize Losslessly
Choose an image, then run lossless cleanup locally. Browse, drag and drop, or paste an image anywhere on the page.
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Processed Output
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Output
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How Lossless Image Compression Works
This page first uses browser-based ExifTool to rewrite the image without metadata and other removable overhead. It can then add a true lossless second pass: PNG files get an Oxipng optimization pass, GIF files use gifsicle, JPEG files use jpegtran, and static WebP files use a lossless libwebp rebuild.
Lossless here still does not mean dimension changes or lossy recompression. If you want stronger size reduction from scaling or quality changes, switch to the resize tool, which is intentionally a different workflow.