I got tired of sharing code as raw text, so I built CodeAlive
Honest question — how do you share a code snippet when you want to point someone to one specific part of it?
I kept running into the same problem:
- Pastebin: no syntax highlighting, looks like 2005
- GitHub Gist: requires a login just to paste something quick
- Slack/Discord: code blocks with zero formatting, no way to say "look at line 12"
So I built CodeAlive — a no-login code sharing tool with a few things I actually wanted:
Line highlighting — append #L10 or #L10-L25 to any share URL and those lines are highlighted when someone opens it. Instead of saying "look at around line 40ish", you just link directly to what matters.
Automatic language detection — paste your code and it figures out the language in the background. 25+ languages supported. Syntax highlighting just works, no dropdown needed.
Immutable shares + slug versioning — every share is permanent. If you edit, you get a new URL. You can also create custom slugs like codealive.app/my-auth-bug that act as named versions. Old links never break.
No login. No account. Just paste and share.
It's live now. Would genuinely love feedback — especially from people who share code regularly. What's missing? What's annoying? What would make you actually switch?
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