What This Batch Image Workflow Is For
This workflow is designed for situations where multiple image files need to follow the same processing rules. Instead of opening a converter, resizer, and compressor separately, you upload the batch once, configure the enabled steps, and run the same sequence across every file. It is useful for preparing image folders for websites, uploads, sharing, storage, or other tasks that require consistent output.
How the Processing Steps Work Together
The workflow runs each enabled step in sequence. Conversion creates the selected output format, resizing limits the image dimensions, and compression adjusts the encoded output toward the selected file-size target. Resizing can reduce the amount of image data that needs to be compressed, while compression should normally be applied after the final output format has been selected. The original files remain unchanged, and the workflow creates new output files.
Choosing the Right Format and Resize Mode
WebP is a practical choice when you want a modern format that can support transparency and often produce smaller files. PNG may be preferable when lossless quality or transparency is important, while JPEG is commonly used for photographs without transparency. Contain preserves the original proportions and fits the image within the selected dimensions. Cover fills the target area and may crop the image, while Stretch fills the dimensions but can distort the original proportions.
How to Balance File Size and Quality
A target file size is a processing goal, not a guarantee that every image will have the same final size. Detailed images, large dimensions, transparency, and different output formats can produce different results. If an image remains above the target, reduce its dimensions or quality gradually. Preview important outputs and compare them with the originals before using or sharing the processed files.
Browser Processing and Practical Limits
The workflow processes image data in the browser instead of sending image files to a remote processing server. Very large images, high-resolution files, large batches, and formats that require additional decoding resources can use significant memory and processing time. If processing becomes slow or fails, try fewer files, smaller source images, or another supported output format. This workflow is intended for repeatable file processing, not for visual editing such as layout design, background removal, or adding text.
