LanguageTool.

Edit thoughtfully rather than accepting every suggestion

LanguageTool highlights potential text problems and suggests edits. Distinguish obvious typos, debatable punctuation and stylistic advice. A tool suggestion is a reason to check a phrase, not an instruction to change the author's text.

Check names, product names and specialist terms particularly carefully. An uncommon word is not necessarily an error. For recurring work, maintain an agreed glossary so editing preserves the team's terminology.

Multilingual checking across product interfaces

The service has a Russian interface and support for several languages. The sets of rules and advanced features differ in languages: the promise for English cannot be automatically transferred to Russian. Check AI paraphrasing capabilities separately from the usual spelling check.

The official ecosystem includes browser extensions and integrations with editors. Understand which text an integration sends for checking and where it is enabled. An extension does not need access to every private work field simply because it is available.

Example: proofread a reply to a customer

Run a language check on your own delivery-time response. Correct obvious typos first, then review clarity suggestions. Check that dates, conditions and negations remain unchanged: "not included" and "included" can look equally polished after a bad edit.

Read the entire text. If the style has become too formal for a short message, return the appropriate author's wording.

API and self-hosting

LanguageTool publishes API documentation and an open-source core. This lets you use language checking in your own system and study its rules. The open local component does not provide all cloud Premium capabilities, particularly generative modes.

What is outside the local core

For integration, consider request limits, text volume, personal-data processing and commercial-use rules. Self-hosting requires maintaining the environment and updating rules. Open source does not guarantee all the paid service's features.

Free, Premium and limits of automatic verification

Free features and paid Premium with expanded checking and additional modes are available. Limits differ by language, plan and usage method. Check the current offering on the official site, especially for a specific paraphrasing feature.

Language correctness does not confirm the facts, compliance with the contract or the admissibility of the publication of other people’s material. After checking, check the content with the source documents. The tool helps to reduce the number of errors in the form of text, and the responsibility for meaning remains with the author.

Suitable tasks

• Check spelling and punctuation of your own text
• Review style suggestions without losing meaning
• Use language checking through a browser extension
• Integrate language checking through the API or open-source core