Compress Images
Shrink JPG, PNG or WEBP file sizes with an adjustable quality slider, without uploading anything.
- 100% free
- No upload — runs in your browser
- No sign-up needed
Large photos slow down websites, bloat email attachments, and eat into storage quotas. This tool re-encodes each image at a quality level you control, trading a small, usually invisible amount of detail for a meaningfully smaller file — all processed locally in your browser, so originals never leave your device.
How to Compress Images
- Add one or more images (bulk compression is supported).
- Adjust the quality slider — lower values mean smaller files.
- Click "Compress images" — drag the before/after slider on each result to check quality before downloading.
Frequently asked questions
How much smaller will my images get?
It depends on the source image, but photographic JPGs commonly shrink 60–85% at a quality setting around 70 with no visible difference at normal viewing sizes.
Does compressing a PNG actually reduce its size much?
Not usually — PNG is a lossless format, so this tool automatically treats PNG compression as a conversion to JPG, which is where the real size savings come from.
Can I compress many images at once?
Yes, this tool accepts multiple files in one batch and offers each processed image for download individually.