#regex

Offline PII firewall for AI agents and LLM apps: fast local detection and redaction, Claude Code hook, LiteLLM guardrail. Zero network calls, one dependency.

ESLint plugin for finding regex mistakes and style guide violations.

Oniguruma's regex engine in pure Rust: full Oniguruma syntax, a vscode-oniguruma-compatible TextMate scanner, no C toolchain

Parse Cucumber JSON from most Cucumber implementations and versions

Faster structured generation

Syntax Highlighter powered by Tree-sitter and Neovim themes.

Rust library for regular expressions using "fancy" features like look-around and backreferences. Has a mode which aims to be compatible with Oniguruma syntax.

Blazing fast and accurate glob matcher written JavaScript, with no dependencies and full support for standard and extended Bash glob features, including braces, extglobs, POSIX brackets, and regular expressions. Used by GraphQL, Jest, Astro, Snowpack, Storybook, bulma, Serverless, fdir, Netlify, AWS Amplify, Revogrid, rollup, routify, open-wc, imba, ava, docusaurus, fast-glob, globby, chokidar, anymatch, cloudflare/miniflare, pts, and more than 5 million projects! Please follow picomatch's author: https://github.com/jonschlinkert

ripgrep recursively searches directories for a regex pattern while respecting your gitignore

Pure Go production-grade regex engine with SIMD optimizations. Up to 3-3000x+ faster than stdlib.

Detect possibly catastrophic, exponential-time regular expressions

🔍 ugrep 7.8 file pattern searcher -- a user-friendly, faster, more capable grep replacement. Includes a TUI, Google-like Boolean search with AND/OR/NOT, fuzzy search, hexdumps, searches (nested) archives (zip, 7z, tar, pax, cpio), compressed files (gz, Z, bz2, lzma, xz, lz4, zstd, brotli), pdfs, docs, and more

REGex in Rust with EcmaScript Syntax

Bindings for RE2: fast, safe alternative to backtracking regular expression engines.

The fastest way to replace any text/file/piped stream content. Shipped with both NodeJS API & CLI out of the box!

Write your own linting rules using regular expressions.

Python bindings to the Rust regress crate which provides ECMA regular expressions

Ruby bindings to RE2, a "fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python".

An implementation of regular expressions for Rust. This implementation uses finite automata and guarantees linear time matching on all inputs.