TextIndex is an open-source CLI tool that enables users to create and manage indexes in Markdown or other text documents. It is designed for authors and technical writers who need to generate scholarly indexes efficiently. The tool supports cross-references, sorting, and integration with publishing workflows.
TextIndex sits in PulseGate's CLI tools & terminal category. It focuses on automating the creation of scholarly indexes in Markdown and text documents for authors and publishers. It is built as an open-source project for technical writers and authors. TextIndex is open source under the GPL-3.0 license. TextIndex is available on the command line, and it can be self-hosted.
It is developed by Matt Gemmell, and the product first shipped in 2025. Development happens publicly on GitHub with 17 stars. PulseGate's similarity index finds few close equivalents — TextIndex occupies a relatively distinct niche. Key capabilities include markdown indexing, syntax highlighting, and cross-references.
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