Your data

This Privacy Policy explains what information Grammar Checker collects when you visit check-grammar.com, how that information is used, and the choices you have. Everything below applies across the site, from the tool to the help articles.

About us and this policy

Grammar Checker is a free online grammar checker published at check-grammar.com. The operator of the site is responsible for your information, and the quickest way to reach them is by email at [email protected]. For the purposes of the GDPR and similar laws, that operator is the data controller.

What we collect — and what we don't

Grammar Checker has no registration, no logins and no paid plans, so there is no account data to collect. Typing, counts, accepting or ignoring suggestions, undo and redo, copying and TXT export run locally in your browser. A grammar check is a separate external request: when you press Check text, your browser sends the complete current draft directly to api.languagetool.org. The proofreading provider receives your draft and checking settings. Server logs, analytics and advertising involve separate technical data, described below. The site has no proofreading backend or API key; drafts do not pass through our server.

Third-party data services

Checking uses a POST request directly from your browser to https://api.languagetool.org/v2/check. The request contains the complete current draft text, selected text language, checking level and preferred spelling variants in automatic mode. LanguageTool also receives your IP address and ordinary connection headers. The request starts only when you press Check text; there are no automatic checks or retries. LanguageTool returns suggestions to your browser and handles received data under its privacy policy. The proofreading service is provided by LanguageTool. Do not submit secrets, confidential work or personal records.

Local editor and request limits

Drafts are never saved automatically. Only request timestamps are kept in sessionStorage under gc_rate_v1 to enforce the local request limit. The editor allows at most 10,000 UTF-8 bytes per check, one check per 10 seconds and 30 checks per hour, with a 20-second timeout. The provider may impose additional limits. Clear resets the local draft and results; it cannot retract an earlier request or delete a draft from the provider. Changing the draft, language or level invalidates earlier suggestions.

Cookies and tracking technologies

Cookies, and similar technologies such as pixels and local storage, let a site or the services it uses keep small pieces of data in your browser. The cookies in use on check-grammar.com belong to the analytics and advertising services covered in the next sections, not to the tool itself. Blocking cookies in your browser will not break the tool, though ads may be less relevant to you.

How we measure use of the site

We use Yandex Metrica and Microsoft Clarity to understand how the site is used. Typical data points are the pages you open, the time spent on them, where you came from, your browser and device, and a rough location. Their session replays and heatmaps show how people click, scroll and move through a page, which helps us fix usability problems. They set their own cookies, and Yandex and Microsoft handle the data under their own privacy statements. We review the reports to improve pages and do not try to work out who individual visitors are.

Advertising partners

The site is funded by advertising, which keeps the grammar checker free. The ads are supplied by third-party ad networks, which may set cookies and use device data, such as your IP address and browser details, to choose ads and measure how they perform. Some ads may be tailored to interests inferred from your browsing across different sites, where the law and your settings allow it.

We do not give advertisers the values you enter into the grammar checker; ad networks handle the data they collect under their own policies. You can opt out of personalised ads from many networks at optout.aboutads.info and youronlinechoices.eu, and you can block third-party cookies in your browser.

Logs kept by our server

Like nearly every website, the server that hosts check-grammar.com keeps standard access logs. These logs hold the IP address, user agent string, time of access and the address of the page requested. Their purpose is security, error diagnosis and aggregate statistics.

Why we may process data (EEA and UK visitors)

If you are in the European Economic Area or the United Kingdom, we rely on the following legal bases:

• Consent for analytics and advertising cookies where the law requires it; you can withdraw it at any time.
• Legitimate interests for security logging, troubleshooting and basic statistics.
• Correspondence: emails you send are used only to respond to you.

Your choices and rights

Data protection law in many places gives you rights over your data: access, correction, erasure, restriction, portability and the right to object. Where we rely on consent, you can withdraw it at any time. Because we hold very little data and no accounts, we may need details such as your IP address and the approximate time of your visit to find anything relating to you.

You also have the right to lodge a complaint with a data protection supervisory authority, in particular where you live or work. Requests can be sent to [email protected].

Where data is processed

Our hosting, analytics and advertising providers may handle data outside the country where you live. Data protection rules in those countries may not be the same as in yours.

Data retention

Data is kept no longer than necessary, and server logs are removed after a limited period unless an entry is needed to deal with a security incident. Analytics and advertising providers keep data according to their own retention schedules. Emails you send us are kept as long as needed to deal with your message and any follow-up.

If you live in California

If you are a California resident, the CCPA, as amended by the CPRA, gives you the right to know what personal information is collected about you, to request its deletion or correction, and to opt out of the sale or sharing of your personal information. We do not sell personal information in the everyday meaning of the word; no list of visitors is ever traded.

That said, ad cookies used for personalised ads may be treated as “sharing” under California law. To opt out, enable Global Privacy Control in a browser that supports it, block third-party cookies in your browser settings, or email us. We will not treat you differently for exercising these rights.

Keeping data safe

Connections to check-grammar.com use HTTPS encryption. Server access is restricted to the site's operator. No system is perfectly secure. Local editing does not send the draft, but a grammar check you start sends it to LanguageTool as described above.

Children

The site is meant for a general audience and is not aimed at children under 13 (under 16 in the EEA and UK). No personal information is knowingly collected from children. If a child has given us personal information, for instance in an email, please let us know so that we can delete it.

Changes to this policy

We update this page when our practices change, for example when we add or remove a service. Whatever appears here is the policy that applies.

How to reach us

For privacy questions or requests, write to [email protected]. Tell us what you need, and we will respond within the period required by law.