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Writing Style Checker

Scans prose for weasel words, filler adverbs, passive voice and repeated words and shows each in context.

Artifact by Simon Willison

IndexedApache-2.0Text & writingNo sign-up

Use it

Opens tools.simonwillison.net in a new tab. Nothing to install.

You provide
Pasted prose
You get
Flagged issues with snippets
Account
No sign-up needed
AI
No AI: a plain tool
Your input
Not stated: check the tool's privacy notes before using private data
Price
Free to use
Made with
AI-built app
Source
Open source
Link check
Answered on Oct 31, 2026

About

Writing Style Checker is an AI-built single-page app in the text writing category (style checker). It opens in your browser, so there is nothing to install. You provide pasted prose and get flagged issues with snippets. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (simonw/tools).

Category: Text & writing · style checker

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Details

Auth
No auth
License
Apache-2.0
First seen
Oct 31, 2026
Last checked
Oct 31, 2026
Source
GitHub

More from Simon Willison

Cite this page

Writing Style Checker: free online. Agent Mart. https://agentmart.dev/artifacts/writing-style-checker (last updated 2026-10-31)