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Alternatives

Products that do what No more writing shitty regexes to police usernames does

Every product that allows usernames eventually ships the same broken solution. Someone adds a blacklist. Then a regex. Then another regex copied from StackOverflow. It works just long enough to ship, and then `admin`, `support`, city names, brand impersonation, and obvious slurs start leaking through anyway. Everyone knows it’s fragile, but it gets ignored because "it’s just usernames". I’ve had to rebuild this logic across multiple products, and I got tired of pretending it’s a solved problem. So I built *username.dev*, an API that answers a more useful question than "is this taken?" — it…

  1. 1

    Usernames that stand out

    2023

  2. 2

    regex cheatsheet for the haters

    2020

  3. 3

    One API to scrape, enrich, and extract the internet

    Jul 2026 · context.dev

  4. 4

    Check out if your username is available

    2019

  5. 5
    Logo.dev538

    Reliable logos for any product, instantly.

    Nov 2025

  6. 6

    One API to scrape, enrich, and understand the web.

    Mar 2026 · context.dev

  7. 7

    Save time, launch faster

    2018

  8. 8IB
  9. 9

    A curated list of most commonly used regular expressions

    2022

  10. 10
    RegexBot165

    Easily convert natural language to RegEx using AI

    2024

  11. 11

    Search usernames in 2000+ websites

    2024

  12. 12

    Find out if your startup's name is available on the web!

    2015

  13. 13
    UserHunt145

    Hunt down accounts by username across social networks

    2021

  14. 14

    How unique is your username?

    2019

  15. 15SD

    2022 · getsocialdomain.com

  16. 16IW

    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

  17. 17
    uiNames101

    Generate random fake names for use in designs and mockups.

    2014

  18. 18

    Display any company logo with a single URL. No API needed.

    Feb 2026

  19. 19
    UserBuddy148

    Find out if your favorite username is available

    2019

  20. 20UC
  21. 21SA

    Hey HN! Happy to finally launch Stack. We made it because we like to put apps into production quickly, and authentication & user management was taking up way too much time. We have components like and that automatically adapt to whatever theme & design system you're using. Check the blog post to see the example with Radix UI and Joy UI. Also, there's an admin dashboard for monitoring and editing accounts. Stack is 100% AGPL/MIT-licensed, so you can self-host it. Cheers!

    2024 · stack-auth.com

  22. 22

    Hand-picked brandable domains delivered daily

    2022

  23. 23AC

    I built this API to return the closest named color for any hex value—using curated lists like my own [1], XKCD [2], and others. I made it from scratch without Express or any frameworks because: - I’m a frontend/interaction dev and wanted to learn how to build an API from the ground up. - Existing APIs didn’t guarantee unique names per color—mine does. - It also supports WebSocket updates, gzip responses, and multiple name sets. I’ve been collecting color names for over 10 years [1]. With ~30,000 entries, bundling them into every color-related project became excessive. This API keeps…

    2025 · meodai.github.io

  24. 24HI

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