RegExr 2.0 was released a little over 2 years ago. If you haven’t used it, it is a great way to test, preview, and share Regular Expressions. We’re committed to updating and improving RegExr, and in January we quietly pushed out some features to help inspect and explain patterns.
The New “Tools” Bar
Initially, RegExr only had one tool, the “substitution” panel, which let users show sample text with matches substituted using an expression. It was hidden by default, unless a pattern included a substitution expression. This tool has been renamed “replace”, and is now part of a larger “tools” bar, which we hope to continue growing in the future. In the meantime, it has a few other useful tools that I’ll describe below in more detail. Continue reading →