What are some alternatives?
When comparing Color Palette Manager and BirdFont, you can also consider the following products
Color Palette Generator - Enter the URL of an image and find its color palette
FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
LOL Colors - Curated color palette inspiration.
FontStruct - FontStruct. Build, Share, Download Fonts
Klart.io Colors - A data-driven collection of beautiful color palettes 🌈
FontCreator - This professional font editor allows you to create and edit TrueType and OpenType fonts.