Batch Image Converter
Convert JPG, PNG, WebP and supported still AVIF files with separate error handling.
Choose images or drop a batch
JPG, PNG, WebP and still AVIF. HEIC and SVG use the single-file tools.
25 MiB / 24 MP per image. Queue and completed outputs each limited to 150 MiB.
0 / 0 complete · 0 failed
Cancel stops queued jobs and terminates active workers. On the main-thread fallback, an active encode must finish before cancellation is reported. Retry keeps the original file.
Files stay on your device. Downloads contain only completed outputs.
How this tool works
Convert JPG, PNG, WebP and supported still AVIF files with separate error handling.
Choose supported files, review settings, process on your device, and inspect the output before downloading. Conversion may increase file size or change color representation. Re-encoding generally drops original metadata.
The shared queue runs at most two image jobs at once. Invalid items fail individually. HEIC and SVG use single-file tools; ZIP includes only completed outputs.
How to use batch image converter
- Choose your image
Select a supported file or drop it into the uploader. Review its format, dimensions and size.
- Make it your own
Inspect the result before downloading. The file size shown comes from the actual encoded file.
- Preview and download
Apply your settings, compare the result with the original, and save the file to your device.
Frequently asked questions
Are my images uploaded?
No. All image processing happens in your browser. The chosen file is not sent to a server.
Which output formats can I use?
JPG, PNG and WebP are supported when the browser can encode them. Conversion routes use their named output format. Transparent pixels receive your selected fill color in JPEG.
What happens to image metadata?
Canvas re-encoding generally drops source metadata and may change color representation. When regular compression retains the smaller original, its metadata remains. Keep a backup of your source.