Online syntax highlighting for the masses! Language: "Perl"

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What's New

2026-07-23: 100+ more languages, and an easy way to find them

A big one:

1. The language list jumped from 154 to 284. Loads of rare and obscure ones now, since colouring the weird stuff is meant to be this site's thing. A handful of long-broken entries are fixed too, and everything is properly sorted into categories.
2. Two filters sit above the Type list now: pick a category, or just start typing to search, so the long list is quick to get around.
3. A new auto-detected languages page listing what I can recognise from your code on its own, and a few more languages detect automatically now.
4. You can dismiss the What's New and Something Interesting boxes if you would rather not see them (there is a "Restore info panels" link at the bottom to bring them back).
5. Plus tidier spacing and labels, a couple more colour styles, and the numbers behind the popular languages page now live in a proper database so they stick around.

Spot anything odd? Let me know.

2026-07-22: A changelog, a feedback button, and a clearer theme switch

Three small things:

1. This page! The full history of changes now lives here instead of an ever-growing box on the front page, which now just shows the latest few.
2. A little thumbs up/down in the top corner so you can tell me what you think of the recent changes with one click. Totally anonymous, just two counters.
3. The dark/light switch now says "Theme" so it is actually findable, and auto-detect now recognises Visual Basic and VB.NET pastes.

2026-07-20: Popular languages page and a privacy note

Added a popular languages page showing what people highlight here most, over the last day through to a year. The counters are completely anonymous (one number per language per day, nothing else), and the same page now carries a proper privacy note spelling out exactly what this site does and does not keep. Also a round of polish: rounded corners on the inputs, better spacing, a character and line counter, and the two info panels tidied up.

Full changelog, back to 2015 »