Grammarly

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Grammarly is an American English-language writing assistant software tool. It started as a tool to review the spelling, grammar, and tone of a piece of writing and to identify possible instances of plagiarism. Since 2025, it has integrated extensive generative AI tools, including options to generate essays from scratch, to suggest and insert citations, to "humanize" the text to avoid it being flagged as AI-generated, and to predict grades based on user input on the instructor, course, and university. It can also make stylistic and tonal recommendations. An "Expert review" feature, which attributed Grammarly's editing suggestions to subject-matter experts in various fields, was discontinued in March 2026 due to criticism and complaints. Grammarly was developed in Ukraine and launched in 2009 by Alex Shevchenko, Max Lytvyn, and Dmytro Lider. In 2024 Grammarly bought Coda, and Coda CEO Shishir Mehrotra became Grammarly's CEO. After buying Superhuman in 2025, Grammarly rebranded its parent company as Superhuman and integrated more generative AI tools in the product. Grammarly is now developed by Superhuman Platform Inc., which is headquartered in San Francisco and has offices in Kyiv, New York, and Vancouver. It is available as a standalone application; a browser extension for Chrome, Safari, and Firefox; and as an add-on for Google Docs.