Private browser tool
Compress an image online, privately
Free, private, in-browser image compression — nothing leaves your device. Choose one image or a batch of JPG, PNG, and WebP files; multiple results download together in a ZIP.
How image compression works here
When you add an image, your browser redraws it and re-encodes it at the quality level you choose. Lowering the quality slightly removes detail the eye rarely notices while cutting file size sharply — often by 60–80% for a typical photo. You see the new size before you download, so you stay in control of the trade-off between size and clarity. The original file is never touched or uploaded; every step runs on your own device.
When to compress an image
- Email and messaging: slip photos under the 25 MB attachment limits used by Gmail and most mail providers.
- Faster websites: smaller images load quicker, which improves page speed and search ranking.
- Upload limits: get under the size caps on forums, job portals, and government or banking forms.
- Saving space: shrink a batch of photos before backing them up or storing them on your phone.
JPG, PNG, or WebP?
JPG is best for photographs and produces the smallest files. PNG is best when you need crisp edges or transparency, such as logos and screenshots. WebP usually gives the smallest file of all at the same quality and works in every modern browser — a good default when you control where the image will be used. This tool compresses all three formats.
Frequently asked questions
How does image compression work here?
Your browser redraws and encodes the image at the quality you choose, then creates a new file for download. The source image is not uploaded.
Can I compress several images at once?
Yes. Select or drop multiple images and the tool processes them one at a time, then builds a ZIP entirely in your browser.
Will compressing an image reduce its quality?
Usually a little. Start with the recommended setting, then compare the preview and file size before downloading.
Are my images uploaded to a server?
No. Compression runs entirely in your browser, so your images never leave your device — there is nothing to leak and nothing to delete afterward.
Is there a limit on file size or number of images?
There is no fixed cap. Very large images or big batches use more of your device's memory, so extremely large jobs are limited mainly by your computer or phone.