We believe that anyone can write beautifully and professionally

Our mission at LanguageTool is to unleash the professional writing skills in every one of our users. For this, we are going far beyond grammar and spelling, with an AI-based technology that analyzes the style, tonality and typography of your text and instantly generates context-aware suggestions.

A team of linguistic professionals and machine learning experts from across the globe is enhancing the product on a daily basis to make the best multilingual text corrector you can find on the web.

It all started in 2003 as an open-source project that attracted many contributors, fans and followers, and over time turned into a service that helps millions of users every day to improve their writing.

International by Nature

Today, most people communicate in more than one language. No matter if you're writing to a foreign business partner or a friend from overseas, LanguageTool has your back with more than 30 supported languages.

Meet the Team

A team of passionate linguists, product designers and data scientists on their mission to provide an exceptional product.

  • Daniel Naber

    Co-Founder

  • Christopher Blum

    Co-Founder

  • Dr. Udo Mai

    Head of Linguistics

  • Ruud Baars

    Rule Developer Dutch

  • Sebastian Burst

    Data Scientist - AI Engineer

  • Agnes Kleinhans

    Rule Developer German

  • Christian Konrad

    Product Designer

  • Rebecca Auque

    Language Developer French

  • Fabian Richter

    DevOps

  • Mike Unwalla

    Rule Developer English

  • Emanuel Kluge

    Frontend Developer

  • Robert Veres

    AI & App Developer

  • Lena Dießlin

    Executive Assistant

  • Vassilis Palassopoulos

    Data Scientist - AI Engineer

  • Azadeh Safakish

    Language Developer American English

  • Jaume Ortolà i Font

    Software Developer Spanish

  • Marvin Erdner

    Content Creator

  • Alistair Plum

    Rule Developer English

  • Remy Martin

    Language Developer French

  • Mika Hoppe

    Working Student Frontend

Join Us

We are always looking for talent to join our remote-first company.

Browse our open job positions

We ♥ Open Source

At LanguageTool, transparency and openness are our primary values. To substantiate this, we made our core technology available as open-source software. This not only allows anyone to review it and contribute to it, but it also enables our users to set up their own LanguageTool server wherever they want.

Find out more

Numbers that Stand for Themselves

  • 2003

    The year LanguageTool started as an open-source project

  • 30+

    Languages supported

  • 1M+

    Active installations of our browser add-ons

  • 143

    People have contributed to the LanguageTool technology

  • 150+

    Companies are using LanguageTool to improve their communication

  • 20M+

    Texts are improved using LanguageTool every day

Unleash the professional writer in you with LanguageTool Premium

Go well beyond grammar and spell checking, and impress with clear, precise and stylistically correct writing.

Learn more