Common Regex Library
Common Regex Library is a free online Regex Tools tool that ready-made patterns for email, URL, phone, dates and more instantly in your browser. Paste your data, adjust the options and get the result in real time — no installation, no sign-up, and nothing is ever uploaded to a server.
Description
Ready-made patterns for email, URL, phone, dates and more.
- Because everything is computed client-side, Common Regex Library is safe to use with sensitive data such as API keys, tokens or private logs.
How to use
Using Common Regex Library takes three steps:
- Paste your data into the input box (or load the example).
- Configure the options to match your target format or scenario.
- Copy, download or inspect the output — it updates live as you type.
Examples
These ready-made examples show typical inputs and the exact output Common Regex Library produces for them.
[email protected]
Email pattern test.
Use cases
Common situations where Common Regex Library helps:
- Ready-made patterns for email, URL, phone, dates and more.
- Because everything is computed client-side, Common Regex Library is safe to use with sensitive data such as API keys, tokens or private logs.
FAQ
What is Common Regex Library?
Common Regex Library ready-made patterns for email, URL, phone, dates and more. It runs entirely in your browser, so your data stays private.
Is Common Regex Library free to use?
Yes. Common Regex Library is free, unlimited and works without registration or installation.
Does my data get uploaded?
No. All processing happens locally in your browser; nothing is sent to any server.