Bulk Image Format Converter
About this tool
Load multiple image files by dragging and dropping them and convert everything into a single format such as JPEG, PNG, or WebP. After the conversion finishes you can download the results together as a ZIP archive. All processing happens entirely in your browser (no data is sent).
Drag & Drop
Supported: JPEG / PNG / WebP / GIF / BMP / HEIC (when supported by the browser) and other images
Supported: JPEG / PNG / WebP / GIF / BMP / HEIC (when supported by the browser) and other images
0 files
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How to use
- Drag and drop images or use the “Add images” button to select them.
- Set the target format, quality, and how to handle transparency.
- Press “Convert all and save ZIP” to start. A ZIP file is downloaded when the process completes.
Notes
- When JPEG is selected, transparent areas are filled with the specified background color.
- WebP quality can be set between 0.1 and 1.0. PNG ignores the quality setting because it is lossless.
- Formats such as HEIC cannot be loaded if your browser does not support them. Support depends on the browser.
- Animated GIF or APNG files are converted using only the first frame.
Cautions
- Processing many images increases memory usage. Split the batch if necessary.
- Do not close the tab or interrupt the process while conversion is running.