• Grammar Bot

LanguageTool API Review

Updated: Oct 5, 2018

See how this open source grammar checker scored in our review.

LanguageTool is a free open source grammar and spelling checker that includes an API. It operates similarly to the Office checker but is more advance, due to use of rules and statistical analyses. If you're a writer and struggle with the complexities of grammar rules, then LanguageTool will be very useful for you; however, this review is geared towards developers as the focus is on the API.

The present highlights had been particularly changed for making syntactically right and staggering business reports. It empowers you to add descriptors and qualifiers to make your composition look more expert; it helps locate the suitable equivalent words to each expression you compose; locate the right meaning of a word; it gives tests to instruct you how to utilize certain words all the more viably and plays out a web scan for each expression you select. Therapeutic scholars will locate the medicinal programming bundle extremely helpful due to the in excess of 100,000 restorative terms it contains that is utilized to discover spelling botches.

The LanguageTool checker depends on a calculation that peruses online journals, daily papers and pages every day and utilizations the data for altering composition in light of your chose kind of composing style. The language calculations are occasionally refreshed to additionally enhance the exactness of the checker over numerous sorts of conceivable development of sentences.

The software has demonstrated itself to work, and appropriately advances any sentence or content without changing its significance. The inherent mentor (Works like a virtual instructor worked in) gives a moment criticism during the time spent in composition. When I began to utilize it at work, my associates were stunned at my appropriate language and spelling.

“Do you have a design in mind for your blog? Whether you prefer a trendy postcard look or you’re going for a more editorial style blog - there’s a stunning layout for everyone.”


  • Low Cost API

  • Primarily rule-based

  • High false positive rate

  • Low error recall rate

  • NLP writing technology

  • API cost ranges from $39/mo for 500 checks to $99/mo for 2500 checks


While LanguageTool supports a wide array of integrations (Word, Docs, Firefox, etc.) and languages, it's accuracy leaves much to be desired and this is what API customers are seeking. For an alternative with better accuracy and slightly lower costs, we invite you to try our very own GrammarBot API.


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