Batch image format converter
Convert up to 20 still images and download the results in a ZIP.
Local processing · Nothing is uploaded · 20 MB / 4 megapixel limit
Input & settings
Result
How to use
Select all source files together. Each is encoded at its oriented dimensions; a ZIP contains sequentially named outputs.
Limits and behavior
At most 80 MB input and 16 million decoded pixels combined. PNG quality is lossless; JPEG flattens alpha to white. Output ZIP is limited to 64 MB. Still PNG, JPEG and WebP only; 20 MB, 4 megapixels and 4,096 pixels per side. Processing stays on your device. Exports apply orientation and discard source metadata. PNG output preserves transparency unless the selected operation composites it.
Convert multiple image formats in one batch
Choose a group of still images and convert supported image formats in one run. The batch converter packages the results into a ZIP archive for convenient downloading.
Can I batch-convert unlimited images?
The tool supports batches of up to 20 still images. Input type, output support and available memory can affect what is practical on a specific device.
Related tools: Batch image compressor · Batch image resizer