FastHan / Image Tools / Convert Image Online Free
CONVERT IMAGE
Convert Image Online Free
Change an image between PNG, JPG, and WebP formats.
100% private — processed in your browser
Your files are processed locally in your browser with JavaScript. They are never uploaded to a server. You can verify this yourself: open your browser DevTools, go to the Network tab, and watch — no file data leaves your device.
How to convert an image to another format
Every format has a job. PNG keeps transparency and sharp edges, which is why screenshots and logos live in PNG. JPG is smaller for photos, which is why cameras and marketplaces prefer it. WebP is smaller still and keeps transparency, which is why modern websites use it. Converting is just picking the format that fits where the image is going.
Choose the output format and, for JPG and WebP, a quality level. Higher quality means a bigger file; 92 percent is a good default for photos — below that, fine detail starts to soften. PNG has no quality slider because it is lossless: it keeps every pixel exactly, and the file is whatever size that takes.
Two honest limits. First, converting a JPG to PNG does not add quality back — a photo that was already compressed stays as detailed as it was, just in a bigger file. Second, this tool cannot open HEIC photos from iPhones, because browsers cannot read that format, and it cannot save GIF files, because browsers can only save PNG, JPG, or WebP. A PNG with transparency converted to JPG gets a white background, because JPG cannot store transparency.
Everything runs in your browser, so the photo never leaves your device. There is no daily limit.
How to use this tool
- 1Drop a JPG, PNG, WebP, or JFIF image onto the page.
- 2Pick the output format — PNG, JPG, or WebP — and a quality level for JPG and WebP.
- 3Press Convert image and download the result.
Frequently asked questions
Which format should I choose?
JPG for photos (smallest files), PNG for screenshots, logos, and anything with transparency, WebP when the destination accepts it and you want the smallest file with transparency.
Does converting a JPG to PNG improve quality?
No. Converting cannot add detail that was already compressed away — the image stays as detailed as it was, just in a bigger file.
Why is there no GIF output or HEIC input?
Browsers cannot read HEIC photos and cannot save GIF files — they can only save PNG, JPG, or WebP. Any tool claiming otherwise in a browser is converting on a server.
Are my images uploaded anywhere?
No. Converting runs entirely in your browser. Your images never leave your device.