image
- resize
  - matrix transformation
    - skew
    - free form
  - scale
  - proportions
    - wide (16:9)
    - square (1:1)
  - crop
    - remove borders (leeway for jpeg artifacts)

- convert
  - png-8
  - png-24
  - jpeg
  - webp

- optimize
  - lower color pallet
  - remove exif and other meta-data

- add text

/ selection
  - create
  - make mask from it


video
- download
- remove sound


text
- alternate case


xml
- get
- parse
- generate

/ rss
/ opml
/ bookmarks


email
- send