RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp).
regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
brevity1swos/rgx
regex101 for the terminal — real-time matching, 3 engines, capture groups, replace mode, syntax highlighting, plain-English explanations, undo/redo, mouse support. Written in Rust.
OG Check - Free Open Graph Meta Tags Checker & Validator Tool
Free online Open Graph checker and validator. Analyze, preview and optimize your website's meta tags for better social media sharing on Facebook, Twitter, LinkedIn. Generate OG code instantly.
Vim anti-patterns | Arabesque
The benefits of getting to grips with Vim are immense in terms of editing speed and maintaining your “flow” when you’re on a roll, whether writing code, poetry, or prose, but because the learning curve is so steep for a text editor, it’s very easy to retain habits from your time learning the editor that stick with you well into mastery. Because Vim makes you so fast and fluent, it’s especially hard to root these out because you might not even notice them, but it’s worth it. Here I’ll list some of the more common ones.
A new era for software testing - <antirez>
Charcuterie
A visual explorer for Unicode. Browse characters, discover related glyphs, and explore scripts, symbols, and shapes across the standard.
Hypothesis, Antithesis, synthesis
Introducing Hegel, our new family of property-based testing libraries.
Testing can be fun, actually
Writing and maintaining tests is boring. But they're also some of the most valuable code we can write. With this blog post you'll learn a criminally underrated testing technique to add to your testing toolbox that can make tests a whole lot more pleasant.
affaan-m/everything-claude-code
Complete Claude Code configuration collection - agents, skills, hooks, commands, rules, MCPs. Battle-tested configs from an Anthropic hackathon winner.
CSS Formatter, CSS Beautifier and CSS Minifier Online tool
Best Online CSS Formatter, CSS Beautifier, CSS Minifier, Save and Share CSS. Simple Quick and Fast!
Machine Learning Glossary | Google for Developers
This glossary defines a wide range of machine learning terms, including those specific to TensorFlow and large language models.
REA — Reverse Engineer Anything
Inspect apps, binaries and runtime behavior with your coding agent or terminal. REA connects local analysis tools through CLI and MCP.
mudcoders/awesome-mud
🖥 A curated list of bookmarks, tools, tutorials, and other cool resources for text-based game developers.
lexicon.community
lexicon.community has 7 repositories available. Follow their code on GitHub.
Script Wizards
A TTRPG and software studio. Small tools for running games, and a zine for hackers who play them.
