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Image Compressor
Compress JPEG and WebP images locally
Runs locally in your browser
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Image is processed locally — nothing is uploaded to the server.
How it works
Compresses JPEG and WebP images in the browser using the Canvas API—reduce file size for web uploads without sending photos to a server.
Who it's for: Web designers, bloggers, and developers optimizing images for PageSpeed and email attachments
Adjusts quality and output format while showing before-and-after file size.
Keeps processing local—private photos never leave your device.
Supports download of the compressed file when you are satisfied with the preview.
How to use
- Upload a PNG, JPEG, or WebP image.
- Set quality (lower = smaller file, more artifacts) and choose output format (JPEG or WebP).
- Compare the preview and reported file sizes against the original.
- Click Download to save the compressed image, or recompress after tweaking settings.
Good to know
- WebP often yields smaller files than JPEG at similar visual quality—test both for hero images.
- PNG transparency is flattened when converting to JPEG—verify the preview if alpha matters.
- Very large images may hit browser memory limits; resize dimensions first if compression fails.