Private browser tool
Compress Image Online
Compress JPG, PNG and WebP images directly in your browser. Choose quality, target size and output format without uploading your image.
Your image is processed locally in your browser and never uploaded to a server.
Select JPG, PNG or WebP. Images are processed locally and never uploaded.
Compression settings
Your image is processed locally in your browser and never uploaded to a server.
Original image
Compressed result
Private image compression for everyday files
This image compressor reduces file size by exporting your image through the browser canvas. It works best for photos, screenshots and web images that need to be smaller for email, websites or online forms.
You can keep the original format or export as JPG, PNG or WebP. JPG and WebP support quality-based compression. PNG is lossless in the browser, so it may not shrink as much as photo formats.
Some images cannot reach a very small target size without becoming unusable or changing dimensions. ResizeKit reports the actual result honestly instead of promising an exact size every time.
Compress image FAQ
Are my images uploaded?
No. The selected image is processed locally in your browser and is not sent to a server.
Which output format should I choose?
WebP is usually best for small web files, JPG is useful for photos and PNG is best when transparency or lossless output matters.
Why is PNG not controlled by the quality slider?
Browser PNG export does not use quality compression like JPG or WebP. It preserves pixels and transparency, which can create larger files.