Convert Image - Change JPG, PNG and WebP Format Free
Convert between JPG, PNG and WebP
Convert images between JPG, PNG and WebP in one click. Whether you need JPG to PNG with transparency or PNG to WebP for smaller files, conversion happens instantly and locally in your browser — no uploads, no waiting.
100 MB max per file
Drag & drop your files here
or browse from your device
Image file · up to 100 MB each
Options
100% FreeNo SignupFiles Never Leave Your Device
How to use this tool

Step 1: Upload your file
Drag & drop your file or click to browse. Files are processed locally in your browser and never uploaded.

Step 2: Adjust & process
Choose your settings and run the tool with one click.

Step 3: Download the result
Download your file instantly. Free forever, no signup, no watermark.
Why 123ToolKit?
| 123ToolKit | Typical online tools |
|---|---|
| Runs in your browser — files never uploaded | Uploads your files to cloud servers |
| Free forever | File size limits |
| No signup | Account required |
Convert Image — FAQ
Yes, the tool converts formats while preserving image quality.
Yes, it is free forever with no signup and no watermarks.
JPG is smaller for photos, PNG keeps transparency, and WebP offers both; pick the format that fits your need.
No, conversion runs entirely in your browser.
Yes, you can convert multiple images in one session.
Some editors, printers, and older apps still cannot open WebP files, even though browsers display them well. Converting the WebP to JPG gives you a photo format that works almost everywhere, while PNG suits graphics. Pick your target format, convert in the browser, and download the compatible copy.
WebP usually makes web graphics and photos much smaller than PNG while keeping transparency where you need it. That helps pages load faster without an obvious drop in quality for most images. Keep PNG instead when a tool, printer, or client specifically asks for that exact format.
JPG simply has no transparency channel, so transparent areas must be filled with a solid background during conversion. If keeping a see-through background matters, convert to PNG or WebP instead, because both formats support transparency. Your original file is never changed, so you can always convert it again differently.
Converting a photo from JPG to PNG often makes it larger, because PNG stores every pixel losslessly instead of compressing like JPG. For photos where size matters, JPG or WebP is usually the better target format. For logos and screenshots, the larger PNG can be worth it for exact, crisp edges.
Yes, convert each image in your browser and repeat the quick process for the next file whenever you need another format. Many people prepare website images, marketplace photos, and form uploads this way, matching each site's accepted formats. Nothing is uploaded anywhere, so the workflow stays private on your own device.
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