SignMaker 2015 is a standards-based editor for writing signs in any sign language using the SignWriting script and 2010 fonts. It includes a symbol palette, signbox editor, sequence editor, dictionaries, and searching functionality. The editor is built on technologies like CSS, JavaScript, and SVG/PNG images. It can be customized through configuration files for aspects like the symbol palette, dictionaries, and keyboard shortcuts. The source code is available on GitHub under an open source license.