# WProofreader: AI grammar check & rewrite tool

> Correct texts and rephrase content with WProofreader secure writing assistant.

Canonical page: [https://chrome-stats.com/d/wproofreader-grammar-checker](https://chrome-stats.com/d/wproofreader-grammar-checker)

## Overview

- **ID:** `wproofreader-grammar-checker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** WebSpellChecker
- **Category:** language-support,social-communication
- **Daily users:** 156
- **Weekly downloads:** 25
- **Rating:** 3.00 / 5 (8 ratings)
- **Version:** 2.5.16
- **Last updated:** 2026-08-04
- **First published:** 2021-10-01
- **Size:** 4.47 MB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/wproofreader-grammar-checker/)
- **Website:** [https://wproofreader.com/contact-us](https://wproofreader.com/contact-us)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/wproofreader-grammar-checker/privacy/](https://addons.mozilla.org/firefox/addon/wproofreader-grammar-checker/privacy/)

## Description

WProofreader is a reliable multi-language grammar and spell checker extension with flexible hosting options: on-site, private cloud, or shared/cloud hosting. A free online demo lets you try the spelling and grammar check before signing up.

It supports 20+ languages for grammar and spelling, with AI-assisted rewriting for English, German, Spanish, and more. Features include a style guide, autocorrect and autocomplete, customizable dictionaries and specialized lexicons, and secure on-premise deployment. It integrates with Google Workspace and many apps, and you can tailor languages, rules, and dictionaries to your organization.

## Rankings

- #9,351 — Overall
- #10 — ai grammar check
- #10 — grammar check
- #10 — rephrase
- #13 — ai grammar checker
- #13 — grammar checker

## Permissions and access

### Permissions

- `activeTab`
- `tabs`
- `http://*/*`
- `https://*/*`
- `storage`
- `unlimitedStorage`
- `cookies`

### Content script matches

- `<all_urls>`
- `docs.google.com`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/wproofreader-grammar-checker)