Rastry

Guide · Web teams

Optimize images for the web

A safe local workflow for preparing a folder of PNG and JPEG assets for web delivery.

Web delivery usually rewards a smaller dimension, an appropriate encoder, and a clean output. The shipped web preset packages those decisions without making the source folder the destination.

1. Start with a folder

Keep source assets in a directory such as public/. Choose a separate output directory:

Terminal window
rastry run ./public --preset web --output ./optimized --dry-run

2. Review the plan

The preset uses:

  1. contain resize to a maximum width of 1600 pixels;
  2. WebP conversion at quality 82; and
  3. metadata removal.

Review every planned path and conflict. Dry-run performs no filesystem mutation.

3. Execute the reviewed plan

Terminal window
rastry run ./public --preset web --output ./optimized --execute

The originals stay in public/, while generated outputs are collected in optimized/. If you need to keep JPEG for a downstream tool, use the convert operation with format: jpeg instead.

More from Rastry

Open the related documentation