An AI proofreader for Mac, in every app you write in
Select text, press one shortcut and choose Polish. NativePen fixes grammar, spelling and punctuation and pastes the corrected text back where it was. It works in Mail, Slack, Notion, Chrome, VS Code and Pages.
Free 50 credits · No subscription required
Proofread on demand, anywhere on your Mac
A proofreader is most useful right before you send something. NativePen checks the text you select when you ask it to, so there are no underlines while you draft and no plugin to install for each app. You get the corrected version in one step and decide whether to keep it.
Grammar
Fixes subject-verb agreement, verb tense, articles and word order, the errors that are easy to miss when English is your second language.
Spelling
Corrects typos and misspelled words across the whole selection.
Punctuation
Fixes commas, apostrophes, capitalization and run-on sentences.
Tone
Choose formal, casual or concise, so the corrected text also fits the person you are writing to.
Every app
Works anywhere you can select text: email, chat, docs, browsers and code editors.
Private by default
Text is processed for each request and not stored by default. NativePen only sees what you select.
Proofread a message in three steps
The whole check happens inside the app you are writing in.
Select the text
Highlight anything from one line up to 4,000 characters, about 600 words.
Press the shortcut and choose Polish
NativePen sends the selection to the model and corrects it.
Keep the corrected text
The fixed version replaces your selection, or appears in a popover so you can copy it.
What to proofread before you send
Short texts matter as much as long ones. A typo in a Slack message to a client is still a typo.
Client emails
Check an email in Mail or Outlook before it goes out, without pasting it into a website.
Commit messages and pull requests
Clean up a commit message, code comment or PR description in VS Code.
Support replies
Send customers answers that are correct and consistent in tone.
Posts and profiles
Proofread a LinkedIn post, a bio or an announcement before you publish it.
Frequently asked questions
Proofread text in any Mac app
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