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Input photo stack moving through trays into a finished output stack.
🔒 Processed in your browser · no upload

Image batch processing pipeline

A batch pipeline chains several image steps (resize → watermark → round → compress/convert) and runs them over a whole batch in one go, downloading the results as a ZIP. No more repeating the same steps image by image — configure once and process dozens or hundreds the same way. image cat does it all locally in your browser; images are never uploaded.

Drag & drop or click to select filesSelect multiple images, run once
Your files stay in your browser; AI tools may download a model

Pipeline steps (run top to bottom)

px (only if wider, keeps ratio)

Final output

Format

How to image batch pipeline

  1. 1Drop multiple images.
  2. 2Tick the steps you want: limit max width, add a text watermark, round corners, final format and compress-to-target.
  3. 3Click “Process batch & download ZIP” — each image runs through the pipeline.
  4. 4Results are zipped and downloaded automatically.

Why use image cat's Image Batch Pipeline?

  • Configure once, run the whole batch: uniform resize / watermark / compress across dozens of images, no per-image repetition.
  • Local and private: the whole batch stays on your device.
  • Lossless intermediates: middle steps use PNG and only the final step encodes to your target format/size, avoiding repeated lossy compression.

Frequently asked questions

No. The entire pipeline runs locally in your browser; images are never uploaded — good for processing large sets of private photos.

In a fixed order: resize → watermark → round → final encode/compress, with each step individually toggleable. This ensures the watermark sits on the resized image and compression happens last for the best quality-to-size tradeoff.

JPG has no alpha channel, so the rounded-away areas fill with black. To keep transparent rounded corners, set the final format to PNG or WebP.

There's no artificial count limit — your device's memory and time are the constraints; more and larger images take longer. For very large images, enable the “limit max width” step first.

Updated · image cat team

Sources, review and limits

Last verified

2026-06-17

Author

Image-Cat editorial team

Reviewer

Image-Cat tooling review

Primary sources

  • Browser image decoding, Canvas and download APIs
  • Common social, web and device image-size presets
  • User-provided images processed locally

Compression and resizing can change quality, metadata and color. Keep originals and verify output before publishing or printing.