Image Converter · Complete guide
How to use the Image Converter
Switch image formats in your browser. Keep transparency, tune quality and shrink file size — no upload required.
What does the Image Converter do?
Switch image formats in your browser. Keep transparency, tune quality and shrink file size — no upload required.
It's part of the MagicBG toolbox— a suite of free, browser-based utilities that never upload your files anywhere.
Why use this tool?
- Cut file size before uploading to a website
- Meet marketplace format requirements
- Avoid dodgy online converters that keep your files
How it works
- 1
Upload a PNG, JPG or WebP file.
- 2
Pick your output format and adjust the quality slider.
- 3
Preview the result and download the converted file.
Features
- Supports PNG, JPG and WebP
- Preserves transparency when possible
- Adjustable quality for lossy formats
- Client-side, private by design
Best use cases
- Preparing product photos for Shopify or Amazon
- Converting screenshots to WebP for faster page loads
- Turning WebP into JPG for platforms that reject WebP
Pro tips for the best results
- Use WebP for the smallest web file size at similar quality.
- Only use JPG when you don't need transparency.
- Keep a PNG master if you'll re-edit the image later.
Frequently asked questions
Do I lose quality when I convert?
PNG → WebP is virtually lossless at 90%+ quality. JPG is lossy by nature — pick 75–85% for a good size/quality balance.
Does it work offline?
After the first page load, yes — the converter runs entirely in your browser.
Ready to try the image converter?
Free, private, no signup. Runs in your browser — your files never leave your device.
Open the image converterExplore every utility in the free tools directory.