AI Regex Explainer
Bring your own API key. It is sent directly from your browser to the provider you choose — OmniDeck never sees it or stores it on any server.
How to use this AI regex explainer
- Paste any regular expression.
- Click "Explain" to get a plain-language, step-by-step breakdown.
- Use it to understand code you didn't write, or to double-check your own pattern.
Why do I need my own API key?
Running AI models costs money per request. Instead of OmniDeck paying for (and rate-limiting) everyone's usage, you use your own account's credits, and we simply provide the interface.
Is my key safe?
Your key is used only to call the provider directly from your browser. It is never transmitted to or stored on OmniDeck's servers. If you check "remember," it is saved in your browser's local storage, which only your device can read.
Getting a "blocked by CORS" error?
Some providers restrict direct browser requests for security. If a provider fails, try a different one from the dropdown — Anthropic's API is the most reliable option for this kind of direct-from-browser use.
Can it explain regex from any programming language?
Mostly yes for common syntax, but flavor-specific features (like named groups or lookbehind support) can behave differently — the explanation reflects general regex theory, not one specific language's quirks.
Will it tell me if my regex has a bug?
It focuses on explaining what the pattern does, not testing it against sample text — pair it with OmniDeck's Regex Tester to check actual matches.