Increase Image Size
Make an image meet a minimum file-size requirement.
or drop an image here
JPG · JPEG · PNG · WebPBuilt for real image-size limits
Choose the file-size target you need and process one JPG, JPEG, PNG or WebP image at a time directly in your browser.
Common reasons to reduce image size
- Application and admission forms
- Profile photos and document portals
- Website and CMS uploads
- Email and web sharing
How it works
- 1Choose a JPG, JPEG, PNG or WebP image.
- 2Enter the target file size in KB.
- 3SmallPNG processes the image locally in your browser.
- 4Download the result when it meets the target.
How SmallPNG reaches the target size
Increase mode keeps the visible image unchanged and adds valid format padding where possible so the file can meet a minimum-size requirement.
Supported image formats
The v1 tool supports JPG/JPEG, PNG and WebP in modern browsers.
| Format | Method |
|---|---|
| JPG / JPEG | Valid file padding |
| PNG | Valid ancillary chunk |
| WebP | Valid RIFF padding |
What does the target size mean?
Increase mode aims to bring a file close to the requested size without changing its visible pixels.
Private browser-based processing
Supported images are decoded and processed locally in your browser. They are not sent to a SmallPNG image-processing server.
All common target sizes
Related tools
Frequently asked questions
Are my images uploaded?
No image-processing upload is required for the supported v1 formats. Processing runs locally in the browser.
How does target-size compression work?
Increase mode adds valid file-format padding where possible while keeping the image visually unchanged.
Why can a very small target reduce image resolution?
Very small file limits may not contain enough data for the original resolution, so reducing dimensions can be necessary to meet the requested size.