Know your formats
Supported formats and limitations
Accepted formats are checked from file contents. Native browser codec support is required. Only still images are supported.
- Input formats
- JPGPNGWEBP
- Output formats
- JPGPNGWEBP
- Up to 8 images, 16 MiB per file and 32 MiB total input. Retained outputs are limited to 64 MiB.
- Downloads are individual files, not a ZIP. Cancellation stops queued work and discards the cancelled run; an active native codec may finish first.
Choose up to eight supported images and one target format. Each successful file gets its own verified download and unique name. Original dimensions are retained. PNG can keep transparency, and JPEG uses the chosen background. A failed file is reported without removing the successful batch outputs.
Limits: 16 MiB per file, 8192px per edge, 8 megapixels. Batch input is limited to 8 files / 32 MiB, and retained batch outputs to 64 MiB. Metadata is discarded; color profiles and HDR may change.
A local workflow
How to use this converter
Your file contents stay in the browser as you work.
Select a bounded group of supported images.
Choose one supported target format and review each input.
Run the queue and download successful results.
A little more clarity
Frequently asked questions
Will one malformed image stop every file?
Files are validated and processed individually. A malformed file is reported while successful outputs remain available from the completed batch.
Is Batch Image Convert available now?
This tool runs locally with JavaScript enabled. Check its supported formats and size limits before converting.