PyMuPDF is a high performance Python library for data extraction, analysis, conversion & manipulation of PDF (and other) documents.

⚡ From finding text to search and replace, from sorting to beautifying text and more 🎨

Diff Match Patch is a high-performance library in multiple languages that manipulates plain text.

Intuitive find & replace CLI (sed alternative)

fastNLP: A Modularized and Extensible NLP Framework. Currently still in incubation.

Python library for creating PEG parsers

Text Classification Algorithms: A Survey

A fast and convenient fuzzy matcher library for rust

Persian NLP Toolkit

The most accurate natural language detection library for Go, suitable for short text and mixed-language text

A fast implementation of Aho-Corasick in Rust.

Program to convert lines of text into a tree structure.

Thai natural language processing in Python

High performance and CommonMark compliant HTML to Markdown converter. Maintained by the Kreuzberg team. Kreuzberg is a fast, polyglot document intelligence engine with a Rust core. It extracts structured data from 98+ document formats using streaming parsers and built-in OCR.

Text Normalization & Inverse Text Normalization

All-in-one text de-duplication

A sharp cut(1) clone.

A simple Python module for parsing human names into their individual components

Natural language detection library for Go

Ekphrasis is a text processing tool, geared towards text from social networks, such as Twitter or Facebook. Ekphrasis performs tokenization, word normalization, word segmentation (for splitting hashtags) and spell correction, using word statistics from 2 big corpora (english Wikipedia, twitter - 330mil english tweets).