Batch Image Format Converter

How to Use

1. Select image files: Click “Select Images” to choose one or more images, or click “Select Folder” to batch import images from a folder. You can also drag images into the tool area or click “Load Sample” to try the workflow.
2. Choose output format: In “Conversion Settings”, select a target format. Supported outputs include JPG, PNG, WebP, BMP, AVIF, and ICO. Format-specific options will appear, such as quality for JPG/WebP/AVIF and icon size for ICO.
3. Set quality and background:
   • Quality: Controls output file size and clarity for JPG, WebP, and AVIF.
   • Transparent background fill: When outputting JPG or BMP, or when “Force transparent areas to background color” is enabled, transparent areas are filled with the selected color.
4. Set image size:
   • Keep original size: Output using the original width and height.
   • Limit maximum width/height: Scale proportionally within the specified range. You can choose to shrink only and avoid enlarging.
   • Set width and height: Choose fit, crop to fill, or stretch to the specified size.
   • Scale by percentage: Batch enlarge or shrink images by the entered percentage.
5. Configure batch packaging: Choose whether to preserve folder structure and set the ZIP compression level. During batch conversion, output files use the original file name by default with only the extension changed. Duplicate names are automatically numbered.
6. Start conversion: Click “Start Conversion” to process all images with the current settings. The interface shows only the first 20 files; remaining files are still processed.
7. Download results: After processing, click “Download All Results ZIP” to get all files. If only one image is processed, you can also click “Download Single Result”.

FAQ