Regex Tester

Live match highlighting, capture groups, flags and replace, with a cheat sheet.

//gm

Test text

1 match

Contact ops@syntax.energy or night-shift+alerts@grid.example.org
Outage logged 2026-11-05 from 10.0.4.17, see https://syntax.energy/corporate
TODO(dylan): add a rollback plan
Accent colours: #ff8a3d and #59d8ff

#	Index	Match	Groups
1	142	TODO(dylan): add a rollback plan	who=dylanwhat=add a rollback plan

Replace with ($1, $<name>, $&)

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