Bulk Image Processing: Convert and Resize Hundreds of Images at Once

When you have 200 product images to convert from HEIC to JPG, or 500 photos to resize to a consistent 1200×800px for a website, doing them one at a time is not viable. Batch image processing converts and resizes any number of images in a single operation, returning all output files in a ZIP download.

Supported Batch Operations

Bulk Image Converter

Upload multiple images in any format (HEIC, RAW/CR2/NEF, WebP, AVIF, PNG, JPG, TIFF, BMP) and convert all of them to a single target format. Common use cases:

• Converting all iPhone HEIC photos from a holiday to JPG for sharing
• Converting a folder of PNG screenshots to JPG for a website gallery
• Converting WebP images from a web download to JPG for editing
• Converting RAW photos to JPG for client delivery

Bulk Image Resizer

Upload multiple images and resize all of them to the same target dimensions. Options include:

• Exact dimensions (e.g., exactly 1200×628px for social media)
• Width only with maintained aspect ratio (e.g., all images 1200px wide, height varies)
• Longest dimension constraint (useful for thumbnails)

GIF Optimisation and Conversion

Animated GIFs are notorious for large file sizes. A 10-second animated GIF can be 20-50MB. File Tools Online offers three GIF-related tools:

• GIF Compressor, Two-pass palette optimisation reduces file size by 40-60% while maintaining animation quality
• GIF to MP4, Converts animated GIF to MP4 video, which is typically 80-95% smaller. MP4 is supported everywhere GIF is, and plays more smoothly
• GIF to PNG Frames, Extracts each frame as an individual PNG file for use in video editing or frame-by-frame animation work