Image Format Converter
This free image format converter changes JPG, PNG and WebP pictures into the format you choose. Convert a batch locally, set a maximum long edge and save individual results or a ZIP without uploading your images.
Your files and text stay on this device. Processing runs in your browser.
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Output
How to use the Image Format Converter
Choose your images, select the output format and maximum long edge, then process the batch. Download each result or save the whole batch as ZIP.
Up to 20 files, 25 MB per image and 100 MB per batch. Images must not exceed 40 megapixels or 16384 pixels on either edge. Output is limited to 100 MB. Large jobs may exceed your device memory.
What the Image Format Converter does
Choose an output format for the way you plan to use the image. JPG is useful for photographs when transparency is unnecessary. PNG retains transparency without a lossy quality setting, while WebP offers another option for web images. Changing a filename extension alone does not convert the underlying image data.
Example and practical limits
Use the image format converter to turn a transparent PNG into a JPG for a system that accepts photographs only. The output will have a white background. For a logo that needs transparent edges, choose PNG or WebP instead. Check both appearance and file size because conversion can increase the download size.
Frequently Asked Questions
Does the Image Format Converter upload my files or text?
No. Processing happens on your device. The page downloads its application code, but your selected files and pasted text are not sent to a conversion service. Download the result before leaving the tab.
Which image formats can I convert?
The tool accepts JPG, PNG and WebP and can output those formats where the browser supports encoding them. Use the separate HEIC tool for HEIC or HEIF photos.
Does conversion keep animation?
Animated PNG and animated WebP inputs are rejected. This converter is intended for still images and does not promise to preserve animation or create animated output.
Does it keep transparency and metadata?
PNG and WebP can retain transparency; JPG replaces it with white. Images are re-encoded, and metadata is not copied. The original file on your device is not overwritten.
Can I use the Image Format Converter offline?
Load the page and its processing libraries first. Browser caching may allow later use without a connection, but offline availability is not guaranteed. Keep your source files and download finished results before closing the page.
Is the markup fighting you?
Escaped entities, mangled encodings and content that renders one way in the CMS and another on the page usually mean something in the pipeline is guessing. We build front ends and the publishing path behind them, so what you write is what a visitor sees.
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