How it works
- Drop your files in the zone above (or click it, or paste with Ctrl+V).
- They convert instantly, right in your browser — nothing is uploaded.
- Adjust quality or max width if needed; files reconvert automatically.
- Download files one by one, or everything at once as a ZIP.
About the formats
JPG
JPG (JPEG) is the most widely supported image format ever made — every camera, phone, program and website accepts it. It compresses photos efficiently but doesn't support transparency, and each re-save at low quality degrades the image a little more.
WebP
WebP is Google's image format for the web, offering smaller files than JPG and PNG with both lossy and lossless modes plus transparency. Browsers handle it well, but plenty of desktop software, older tools and upload forms still reject it — which is why images saved from the web often need converting.
What this conversion actually gives
Measured with the converter on this page, on a 2016 × 1512 px test image: the JPG file weighs 1002 KB.
| Setting | Result | Change |
|---|---|---|
| Quality 85 % (default) | 574 KB | −43 % |
| Quality 60 % | 186 KB | −81 % |
| Max width 1600 px, quality 85 % | 284 KB | −72 % |
The file loses −43 % — enough for an attachment or a web page, with no visible change on screen.
For an email attachment, quality 60 % brings it down to 186 KB. Capping the width at 1600 px gives 284 KB — plenty for any screen.
- Camera model, date and GPS coordinates stored by the device are removed unless you tick « keep metadata ».
Your own files will differ — a photo full of detail compresses less well than a flat graphic. These figures come from one reproducible test image, not from an average.
Frequently asked questions
How big will my WebP file be?
On our 2016 × 1512 px test image, a JPG of 1002 KB comes out at 574 KB at the default quality (−43 %). Lower the quality slider or set a maximum width and the figure drops further — the page shows the new size as soon as the file is reconverted.
Does converting JPG again reduce quality?
One conversion at 85–95% quality is visually indistinguishable for almost all photos. Quality loss only becomes visible after repeated low-quality re-saves.
Why convert to WebP?
WebP gives the same visual quality as JPG or PNG at roughly 25–35% smaller file size, supports transparency, and is read by every modern browser — the best choice for fast-loading websites.
Are my files really private?
Yes. The conversion runs entirely in your browser using its built-in image engine. Your files are never uploaded, stored or seen by any server — you can even disconnect from the internet after the page loads and keep converting.
Is this free? Is there a file limit?
Completely free, no account, no watermark. Convert as many files as you like, up to 200 MB each — the only limit is your device's memory.
Can I convert many files at once?
Yes — drop a whole batch at once. Each file converts independently and you can grab everything in a single ZIP when done.