# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2016-12-11 15:14:10 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/807966711966302208) RT @wojteklu: I've created https://t.co/ONhUgzajqu. It allows to test regular expressions as you write them. Hope you find it useful. Built…