SEOMedic Simple Grammar Checker

Simple Grammar scans every published post for spelling, grammar, and style mistakes — and turns cleaning them up into an ongoing SEO habit.

Most sites publish a post once and never touch it again. But search engines favour content that’s actively maintained: when you revisit an older post and genuinely improve it, you refresh its «last updated» signals — one of the freshness factors Google uses to decide what to rank. Simple Grammar makes those small, legitimate improvements easy to do at scale, so tidying your writing doubles as content maintenance that keeps older pages competitive.

Why grammar fixes are more than cosmetic

• Freshness signals — meaningful edits to existing posts tell Google the content is current and cared for, which can help older pages hold or regain rankings.
• User trust & conversions — clean, error-free copy reads as more credible and keeps readers on the page.
• Site-wide, not one page at a time — scan your whole archive from a single screen and fix issues without opening each post.

Proprietary Post Score

Every scanned post gets a colour-coded Post Score (0–100, Good / Fair / Needs work) shown right in the results. It’s a blended quality score that combines three signals — grammar (errors relative to length), readability (reading ease), and average sentence length — into one at-a-glance number, with a hover breakdown. Use it to spot your weakest pages first and prioritise the updates that matter, then watch the score climb as you fix issues.

Key features

• Whole-site scan — check any number of posts in one session; long posts are split into chunks automatically so nothing gets missed.
• One-click fixes — each error shows up to five suggestions; click to apply the one you want and the post is updated instantly.
• Post Score — a per-post quality score so you can prioritise which content to refresh first.
• Custom dictionary — add brand and product names so they’re never flagged again.
• Disable error types — switch off whole categories (e.g. repetitions) site-wide from Settings.
• Find Posts — search your content by word or anchor text for quick editorial audits.
• Ignore list — dismiss individual errors globally if you choose to keep a non-standard usage.
• Offset-accurate replacements — fixes map back to the exact bytes in the original HTML, so tables, blockquotes, and formatted text are never corrupted.
• No account required — uses the free public LanguageTool API; no sign-up, no API key.

Refreshing your back catalogue is one of the highest-leverage SEO tasks most site owners skip. Simple Grammar gives you a reason — and a workflow — to do it consistently.

Also worth checking

If you want your well-written content to rank and get found, pair Simple Grammar with SEO Medic — it audits your site for broken links, indexing issues, and on-page SEO problems and tells you exactly how to fix them.

External services

This plugin relies on the LanguageTool API, a third-party service, to check your text for spelling, grammar, and style errors.

When you run a scan, the text content of the posts being checked is sent to the LanguageTool public API endpoint (https://api.languagetool.org/v2/check) over HTTPS so it can be analysed and suggestions returned. Text is sent only while a scan is running and only for the posts you choose to check. No data is sent during normal site browsing, and the plugin does not store your content on any external server.

The plugin also requests the list of supported languages from https://api.languagetool.org/v2/languages to populate the language selector on the Settings screen. This request sends no content from your site — it only retrieves the list — and the result is cached for a week.

The service is provided by LanguageTool (LanguageTooler GmbH). Please review their terms and privacy policy:

• Terms of service: https://languagetool.org/legal/terms
• Privacy policy: https://languagetool.org/legal/privacy

Credits

The synonym matching feature uses data derived from WordNet 3.1, a lexical database developed by Princeton University. WordNet is distributed under a permissive BSD-style license. Copyright 2011 Princeton University. See https://wordnet.princeton.edu/license-and-commercial-use for details.