What this tool does
This tool converts images between JPG, PNG and WebP. You can select several images at once, pick the output format, and adjust the quality for lossy formats (JPG and WebP).
Each converted file appears in a list with its original and new size, ready to download individually.
How to use it
- Choose one or more images (JPG, PNG, WebP, GIF or BMP).
- Select the output format: JPG, PNG or WebP.
- For JPG or WebP, adjust the quality slider if needed.
- Press “Convert” — each file is processed in turn in your browser.
- Download each converted file from the results list.
Supported formats
- Input: JPG / JPEG, PNG, WebP, GIF (first frame), BMP
- Output: JPG, PNG, WebP
Limitations
- JPG does not support transparency. If a PNG with transparent areas is converted to JPG, the transparent areas become white — the tool does this deliberately and shows a notice.
- PNG output is lossless, so converting a JPG to PNG usually makes the file larger, not better quality.
- Animated GIFs convert using the first frame only.
Frequently asked questions
Which format should I choose?
JPG for photos (smallest files), PNG for graphics, screenshots and anything with text or transparency, WebP when a website accepts it — it is usually smaller than both.
Why did my transparent PNG turn white in JPG?
The JPG format has no transparency channel. The tool flattens transparent areas onto white instead of leaving them black or random — that is why the notice appears.
Are my images uploaded?
No. Every conversion runs in your browser on your device. The files never leave your computer or phone.