GmailHumanize cold emails and replies before you hit send.
Chrome ExtensionHumanize anywhere you type.
Highlight any AI text in Gmail, Docs, LinkedIn, Notion, Slack, ChatGPT, or Claude. Walter humanizes it in one keystroke.
In every text box
The eight apps you already open every day.
No copy-paste. No tab-switching. No second window. Highlight, hit a shortcut, and Walter rewrites in place.
Gmail
Google DocsRewrite AI drafts sentence by sentence, right in the doc.
LinkedInSound human in posts, comments, and DMs.
NotionHumanize notes and docs without leaving Notion.
SlackClean up messages before you send them.
ChatGPTTurn ChatGPT output into something that sounds like you.
ClaudeMake Claude's drafts read like you wrote them.
X / TwitterPost in your own voice, not the model's.
What you can do
Two jobs. One extension.
Walter is a single browser extension that humanizes AI text and detects AI content across every text box, every page, every email.
Humanize AI text in one click
A humanized rewrite that passes leading detectors at 96.4% on the RAID benchmark.
Detect AI text on any page
A calibrated AI probability for any selection, scored sentence by sentence.
Walter Writes vs. Grammarly
Walter picks up where Grammarly stops.
Walter is a single browser extension that humanizes AI text and detects AI content across every text box, every page, every email.
| AI CAPABILITIES |
Walter Writes
| Grammarly |
|---|---|---|
| Humanize AI text | ||
| Detect AI in any selection | ||
| Inline grammar | ||
| Keeps your text private | ||
| Open-source on text path |
Privacy and data handling.
Text is sent to our API only when you explicitly invoke a tool (click, shortcut, or context menu). The extension never reads pages in the background. Our text-handling code is open-source, and you can read the full privacy policy and security review on our security page. Submitted to Chrome Web Store under enhanced review.
Frequently asked questions.
Quick answers about safety, privacy, and how the extension works.
Are Chrome extensions safe?
Walter only reads text when you explicitly invoke it (a click, shortcut, or right-click menu). It never reads pages in the background. The text-handling code is open-source, and the extension passed Chrome Web Store’s enhanced review.
Does the extension work offline?
Partly. Grammar and short-text checks under 200 words run in your browser and work offline. Humanizing, AI detection, plagiarism, and longer grammar checks need a connection, since they call our API.
Can my employer block it?
Yes. Like any extension, an organization can block or allowlist Walter through managed Chrome policies. If it’s blocked on your work profile, it still works on a personal Chrome profile.
Does it work in Incognito?
Only if you turn it on. Chrome disables extensions in Incognito by default; you can enable Walter at chrome://extensions. It works the same way there and still only sends text when you invoke it.
Humanize anywhere you type.
Highlight any AI text in Gmail, Docs, LinkedIn, Notion, Slack, ChatGPT, or Claude. Walter humanizes it in one keystroke.