Image Format Converter
Convert between JPG, PNG, WebP, GIF formats
About the Image Format Converter
The right image format depends on where it is going — WebP for fast-loading web pages, PNG for transparency, JPG for photos. This Image Converter changes an image from one format to another right in your browser, across JPG, PNG, WebP, and GIF, with a quality control for the formats that support it.
Web developers convert photos to WebP to shrink page weight, designers move between PNG and JPG depending on transparency needs, and anyone with an image in the wrong format fixes it here. Because conversion runs on a canvas locally, there is no upload, and a batch can be downloaded as a single ZIP.
How to Use the Image Format Converter
- Upload one or more images (JPG, PNG, WebP, or GIF) by dragging or clicking.
- Choose the target format from the dropdown.
- For JPG or WebP, set the quality with the slider.
- Download each converted image, or grab them all as a ZIP.
Why Use ToolForge’s Image Format Converter
- It converts between four formats — JPG, PNG, WebP, and GIF — with a quality slider for the lossy ones, all on an in-browser canvas.
- When converting to JPG, it fills transparency with white so the result looks correct rather than showing black edges.
- Multiple images convert at once and download together as a ZIP, via in-browser zipping.
- Nothing is uploaded — your images are processed entirely on your device, so private photos stay private.
Frequently Asked Questions
Which image format should I use?
WebP offers the best compression for the web and supports transparency, making it ideal for most online images. PNG is best when you need lossless quality or transparency and WebP is not an option; JPG suits photographs where small file size matters more than perfect fidelity.
Why does converting a transparent PNG to JPG change the background?
JPG does not support transparency, so transparent areas must be filled with a solid color. This converter fills them with white, which keeps the image looking clean rather than producing black or distorted edges.
Are my images uploaded anywhere?
No. Conversion happens on a canvas inside your browser, and the files never leave your device. That makes it safe to convert personal photos, screenshots, or confidential images.
Does converting between formats reduce quality?
Converting to a lossless format like PNG preserves quality, while converting to JPG or WebP applies compression you control with the quality slider. Repeatedly re-saving a photo as JPG can gradually degrade it, so convert from the original when you can.
