Image Format Converter (PNG, JPG, WebP, GIF, BMP)
Convert images between PNG, JPG, WebP, BMP and GIF entirely in your browser · free, no signup
See Image Format Converter (PNG, JPG, WebP, GIF, BMP) in action
Free Image Format Converter
Different apps and platforms expect different image formats — PNG for transparency, JPG for smaller photos, WebP for modern web pages. This tool loads an image using your browser's own image decoder and re-encodes it to whichever format you choose, with a quality slider for lossy formats, entirely on your device using the HTML canvas — no image is ever sent to a server.
Because it relies on your browser's built-in decoder, it can open any format your browser can already display natively (PNG, JPG, WebP, GIF, BMP, and in Safari, HEIC photos straight from an iPhone) and convert to PNG, JPG, WebP or BMP. If a format won't open, that means your specific browser cannot decode it locally — try the same file in Safari for HEIC, since only Safari currently decodes it without a plugin.
Key features
Multiple target formats
Convert to PNG, JPG, WebP or BMP.
Quality control
Adjustable compression for JPG and WebP output.
Batch-friendly workflow
Convert several images one after another without reloading the page.
Fully local
Uses your browser's own decoder and canvas — no upload, no server.
How to use it
- Drop an image file onto the box or click to choose one.
- Pick the output format you want.
- Adjust quality for JPG or WebP if needed.
- Click Convert & Download to save the new file.
Worked example
Example
A 3.4 MB PNG screenshot converted to JPG at 85% quality becomes about 480 KB with no visible loss, ready to email or upload where PNG isn't needed.
Who uses this tool
Web developers
Convert images to WebP for smaller, faster-loading pages.
Photographers and content creators
Convert camera photos to a universally supported JPG.
Anyone with an iPhone HEIC photo
Convert to JPG or PNG for apps that don't accept HEIC (in Safari).
Tips for the best results
- Use PNG when you need transparency; JPG and WebP flatten transparent areas to a solid colour.
- For photos, JPG or WebP at 80-90% quality gives a good size-to-quality balance.
- Keep an original copy before converting, since JPG and WebP compression is lossy and cannot be perfectly reversed.
- If HEIC won't open, try the same file in Safari, which is currently the main browser with native HEIC decoding.
Common mistakes to avoid
- Converting a photo to PNG expecting it to shrink — PNG is often larger than JPG for photographic images.
- Repeatedly re-saving as JPG, which compounds quality loss each time.
- Assuming every browser can decode every format — HEIC support in particular varies by browser.
Why use AZRS QuickFix?
It is 100% free, needs no signup and has no watermark or usage limits. The tool runs in your browser, so what you type stays on your device, and it works on phones, tablets and desktops. New tools are added every week — bookmark this page or browse the full QuickFix toolbox.
Frequently asked questions
Is my photo uploaded anywhere?
No, the image is decoded and re-encoded entirely in your browser using an HTML canvas; nothing leaves your device.
Can this convert HEIC photos from my iPhone?
Only if your browser can decode HEIC natively — currently that's mainly Safari. Chrome and Firefox cannot open HEIC files locally without a plugin, so the conversion will fail there and you'll see a clear message.
What's the difference between PNG and JPG?
PNG is lossless and supports transparency, better for graphics and screenshots; JPG is lossy and smaller, better for photos.
Does WebP work everywhere?
Nearly all modern browsers support WebP; very old browsers may not display it.
Is there a file size limit?
No hard limit is enforced, but very large images may be slow to process since everything runs in your browser.
Can I convert several images in one session?
Yes, convert and download one, then drop the next — the tool resets automatically for each new image.