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Proofline — proofread in place

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Overview

Proofread selected text in any field with your own AI provider key and your own editing instructions. No account.

Fix your writing without leaving the page. Select a sentence in any text field, press Alt+P, and Proofline opens beside the field with a corrected version — streaming in, word by word. It shows you a word-level redline of exactly what changed. Press Replace and the fixed text lands in the field you were already typing in. No new tab, no pasting, no separate app. Built for people who type fast because they are thinking about something other than the keyboard. It keeps your meaning, your register and your language: whatever you wrote in comes back in the same language. ——————— WHAT IT DOES ——————— · Word-level redline — every insertion and deletion marked, so you approve a change instead of trusting one · Replace in place — the corrected text goes back into the same field, with the same formatting · Five editing profiles — Polish, Light touch, Tighten, Rewrite, Professional — all of them editable, none of them fixed · One-off instructions — type "shorter" or "keep it blunt" and press Enter to re-run · Undo — one press puts your original text back · Works in embedded editors — turn on frame support for editors that live inside an app panel · Per-site blocklist — pages Proofline must never touch · Light and dark, following your system ——————— YOUR KEY, YOUR BILL, NO ACCOUNT ——————— Proofline runs on an API key you supply. There is no subscription and no sign-up, because there is no server on our side to sign up to: your text goes from your browser straight to the provider you chose and back. Nothing reaches the developer — not your text, not your key, not the fact that you ran it. A typical passage costs a fraction of a cent, and you can cap the spend at the provider. ——————— NOTHING ON THE PAGE UNTIL YOU ASK ——————— No floating button, no underlines while you type, and no site access requested at install. Proofline asks for permission to a site the first time you actually use it there, and you can grant a single domain instead of all of them. ——————— WHAT IT CANNOT DO ——————— Google Docs is not supported. Docs draws text on a canvas rather than in a text field, so there is nothing for an extension to read or replace. Everywhere else — webmail, chat and comment boxes, CMS fields, editors inside embedded frames, plain textareas — works.

Details

  • Version
    1.0.0
  • Updated
    September 1, 2026
  • Offered by
    IV.
  • Size
    46.8KiB
  • Languages
    English
  • Developer
    Vadym Iordanov
    Zarichna St Kyiv, Kyiv city 02137 UA
    Email
    vadim.iordanov@gmail.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

Proofline — proofread in place has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Proofline — proofread in place handles the following:

Authentication information
Personal communications

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

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