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interactionsVercel

Don't Block Paste

NEVER

NEVER: Block paste in `<input>/<textarea>`

Never disable paste in input or textarea elements

Bad

Good

Why it matters

Blocking paste frustrates users and reduces security by preventing password managers from working. Users should always be able to paste content into form fields. If you need validation, validate after paste, don't prevent it.

References

Built by Gleb Stroganov, design engineer at Evil Martians.

The rules come from other people's skills and guidelines — Vercel, Rauno Freiberg, @Ibelick, impeccable, Emil Kowalski, Tailwind, RAMS — each one credited on the Sources page. The work here is extraction and wiring: every rule is pulled into one corpus, given a good and a bad example you can operate, a MUST/SHOULD/NEVER rule an agent can paste, and a link back to where it came from.