Fontello vs TypeTool 3

Fontello is a free web and API service for turning vector artwork into icon webfonts for websites. It can reduce glyph collections and combine symbols from multiple fonts into one generated file. The web app includes open-source artwork and accepts custom SVG icons or SVG fonts by drag and drop. Generated files arrive in a single ZIP archive, with a config.json file that can be imported later to continue editing. Its API can create a session from a font configuration, reopen that project, and download the resulting font; API sessions remain stored for 24 hours. Fontello lists Makefile, Node.js, Ruby, and Grunt integrations for workflow automation. It does not offer accounts for project storage, so archives should be kept in version control. Generated font icons are single-color. The code is MIT-licensed, while embedded fonts retain their own licenses.

TypeTool 3 has no write-up on Specifiction yet; its figures are above.