Use our free online Compress JPG tool. Fast, secure, and no sign-up required. Free to use with no sign-up and no watermark.
This tool re-encodes a JPG file to reduce its size while keeping the visual result as close as possible to the original. Everything happens in your browser, so the file is never uploaded and there is no queue, no size cap and no watermark on the output.
Compressing JPG means re-running it through an encoder with tuned settings. If you start from an original rather than an already-compressed copy, you get the best quality per byte, because each lossy pass throws away information that cannot be recovered.
Compress when you are publishing to the web and page weight matters, when an upload form rejects the file for being too large, or when you are sending several images by email. Compression is the cheapest way to cut size without changing the dimensions.
Do not compress the only copy of an important design file. Keep the original untouched and export a compressed version for delivery, so you can always go back.
Drop the file into the converter, adjust the quality level, preview the result, and download. Drop the quality in small steps and check the preview at full size — artefacts in flat areas such as skies and skin are the first sign you have gone too far.
Yes. The file is processed locally in your browser and is never uploaded to a server, so it is safe for private screenshots and documents.
JPG uses lossy compression optimised for photographs, so some quality loss is possible if the source is lossy compression optimised for photographs. Keep the original file and compare the output before you overwrite anything.
No fixed limit — the work is done by your own device, so very large files simply take longer.
Yes. The pixel dimensions are preserved unless you deliberately resize the image.