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Life & fun · alternatives · 2026

WH

24 alternatives to Wregex – How Regular Expression Engines Work

Werner's home on the Web

This is Werner's personal website featuring documentation tools and educational projects. It includes d.awk, an AWK script that extracts Markdown-formatted documentation from source code comments in languages like C… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Wregex – How Regular Expression Engines Work launched in 2017; newer entries below may have overtaken it.

  1. 1AE

    Hi, I recently published my ebook on GNU awk one-liners [1]. It starts from the basics of awk syntax and then discusses one-liner examples. There's a chapter on regular expressions as well. The github repo has the details on how to get the PDF version, all the example files and code snippets used in the book, sample chapters as well the markdown source used to generate the PDF. I made all my ebooks [2] free last month amidst the pandemic fears. These include GNU grep & ripgrep, GNU sed and three books on regular expressions (Python, Ruby, JavaScript). I'd appreciate your feedback and hope…

    2020 · its alternatives →

  2. 2

    A modern regular expression playground with live matching, visual railroad diagrams, rich notes, and easy sharing.

    2020 · ihateregex.io · its alternatives →

  3. 3

    A curated list of most commonly used regular expressions

    2022 · uibakery.io · its alternatives →

  4. 4
    Regulex▲167

    Visualize Regular Expressions using Javascript

    2015 · jex.im · its alternatives →

  5. 5

    Outlines is a Python library that focuses on text generation with large language models. Brandon and I are not LLM experts and started the project a few months ago because we wanted to understand better how the generation process works. Our original background is probabilistic, relational and symbolic programming. Recently we came up with a fast way to generate text that matches a regex (https://blog.normalcomputing.ai/posts/2023-07-27-regex-guide...). The basic idea is simple: regular expressions have an equivalent Deterministic-Finite Automaton (DFA) representation. We…

    2023 · github.com · its alternatives →

  6. 6RE
  7. 7RF
  8. 8

    Learn RegEx step by step, from zero to advanced

    2021 · regexlearn.com · its alternatives →

  9. 9IW

    My book on "GNU grep and ripgrep" is free to download today and tomorrow [1][2] Code snippets, example files and sample chapters are available on GitHub [3] The book uses plenty of examples and regular expressions are also covered from scratch. The book is suitable for beginners as well as serves as a reference. Hope you find it useful, I would be grateful for your feedback and suggestions. I used pandoc+xelatex [4] to generate the pdf. [1] https://gumroad.com/l/gnugrep_ripgrep [2] https://leanpub.com/gnugrep_ripgrep [3]…

    2019 · its alternatives →

  10. 10IW

    My book titled "Python re(gex)?" is free to download through this weekend [1][2] The book covers both 're' and 'regex' modules, has plenty of examples and chapters also have cheatsheets and exercises. Code snippets, exercises, sample chapters, etc are available on GitHub repo [3] I used pandoc+xelatex [4] to generate the pdf. [1] https://gumroad.com/l/py_regex [2] https://leanpub.com/py_regex [3] https://github.com/learnbyexample/py_regular_expressions [4]…

    2019 · its alternatives →

  11. 11

    Online tool to learn, build, & test Regular Expressions

    2014 · regexr.com · its alternatives →

  12. 12

    An extension of regular expressions for text editing, with a grep-like command-line tool. If you, like me, struggle with group logic in regular expressions, you might find it useful. I wanted to do this for a very long time. It is more of a sketch or prototype. I'd really appreciate your feedback!

    2025 · github.com · its alternatives →

  13. 13DR

    I'd like to invite everyone to try out DontBeEvil.rip, an experimental search engine for developers. tl;dr $ alias rip="curl -G -H 'Accept: text/plain' --url https://dontbeevil.rip/search --data-urlencode " $ rip 'q=Heartbleed bug' DontBeEvil.rip is a year long experiment to see if a small team can build a developer-focused search engine that is self-sustaining on $10 monthly subscriptions. It works by only indexing high-quality resources that are relevant to developers. You won't get useless listicles because we'll never crawl them. Relevant urls are harvested from HN,…

    2022 · its alternatives →

  14. 14

    Regex.ai is an AI-powered tool that generates regular expressions. It can accurately generate regular expressions that match specific patterns in text with precision. Whether you're a novice or an expert, Regex.ai's intuitive interface makes it easy to input sample text and generate complex regular expressions quickly and efficiently. Overall, Regex.ai is a game-changer that will save you time and streamline your workflow.

    2023 · regex.ai · its alternatives →

  15. 15

    Hey HN, This is Jan, founder of Apify, a web scraping and automation platform. Drawing on our team's years of experience, today we're launching Crawlee [1], the web scraping and browser automation library for Node.js that's designed for the fastest development and maximum reliability in production. For details, see the short video [2] or read the announcement blog post [3]. Main features: - Supports headless browsers with Playwright or Puppeteer - Supports raw HTTP crawling with Cheerio or JSDOM - Automated parallelization and scaling of crawlers for best performance - Avoids blocking using…

    2022 · crawlee.dev · its alternatives →

  16. 16

    Regex syntax and resources to power up your programming

    2021 · github.com · its alternatives →

  17. 17AL
  18. 18
    RegViz▲84

    Debugging regular expressions visually

    2015 · regviz.org · its alternatives →

  19. 19

    Find the origin of any character in the DOM

    2019 · fromjs.com · its alternatives →

  20. 20
    Vigex▲24

    No more frustration while writing regular expressions

    2022 · vigex.netlify.app · its alternatives →

  21. 21

    Crawlee—A web scraping and browser automation library for Node.js to build reliable crawlers. In JavaScript and TypeScript. Extract data for AI, LLMs, RAG, or GPTs. Download HTML, PDF, JPG, PNG, and other files from websites. Works with Puppeteer, Playwright, Cheerio, JSDOM, and raw HTTP. Both headf

    2018 · github.com · its alternatives →

  22. 22

    Typed, functional (folds, scans) stream processing backed by Andrew Gallant/burntsushi's regular expressions library. There's a guide here! https://vmchale.github.io/jacinda/

    2024 · hackage.haskell.org · its alternatives →

  23. 23

    Extended JavaScript regular expressions. Contribute to slevithan/xregexp development by creating an account on GitHub.

    2015 · github.com · its alternatives →

  24. 24

    RegexOne provides a set of interactive lessons and exercises to help you learn regular expressions

    2020 · regexone.com · its alternatives →

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