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Can a regex match valid card numbers?

Labeled matches: why is this not in every regex engine?

A web regex visualiser with PCRE2

lucivy: one index that answers substring, fuzzy-across-tokens and regex queries — and every answer is checked against a scan of the files (Rust, MIT)

Regex

A regex engine built from scratch in vanilla JavaScript — a hand-written parser and a backtracking matcher. No native RegExp, no dependencies.

A concrete, runnable demonstration that iterated regex substitution is Turing-complete: it renders DOOM

DOOM running on a regex engine

Built a TUI (ratatui) regex explainer (almost like regex101) to get comfortable with rust.

what 262,715 regex questions on stack overflow haven't answered (part 2)

I got tired of Python's regex memory leaks, so I built a zero-copy C-exten (1GB/s, 0.0 MiB overhead)

Regex Chess: A 2-ply minimax chess engine in 84,688 regular expressions

what 262,715 regex questions on stack overflow haven't answered

Can Regex crate beat Python's RE?

Release 0.10.0 of miro-pdf, reading annotations/comments and text/regex search

Parsing 11 languages in pure Go without CGO: replacing regex with a tree-sitter runtime

The future of code search is not regex – 100x faster than ripgrep

Regex Are Not the Problem. Strings Are.

Claude Code Leak Reveals a 'Stealth' Mode for GenAI Code Contributions - and a 'Frustration Words' Regex

Release Re2js v2 - A pure JS RegExp engine that defeats ReDoS

Regex validation in Java is stuck in the 70s.

I got tired of regex-parsing validation logs, so I built a drop-in validator for slog/OTel

yes, all longest regex matches in linear time is possible

Finding all regex matches has always been O(n²)

RE#: how we built the fastest regex engine in F#

Regex Blaster

Fast regex search: indexing text for agent tools

Reaching 20k downloads with Sift: A lesson learned on Regex Anchors, CRLF Injections, and Engine Fragmentation.

Why is Go's regex so slow?

ngrep: a grep-like tool that extends regexp with word embeddings

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