Language and Terminology Tools

Market overview of recommendable language checkers (spelling, grammar, style, terminology) and terminology databases, especially in connection with the creation of technical documentation and user assistance

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Microsoft Word

Better than some standalone spelling and grammar checkers, particularly for the English language.

Price: starting at approx. €130


Also comes with a fairly good syntax checker.

Price: starting at approx. €100


Checks for a large number of issues.

Price: basic version free (web application, Word add-in, Google Docs add-on), premium edition approx. $35 per year


Needs an internet connection to work. May therefore be inappropriate to process confidential information.

Price: not published


Especially aims to improve the clarity of your texts.

Price: approx. $150 (“Standard”) and $190 (“Professional”)


Looks for more than 50 types of writing mistakes and identifies weak style such as unnecessary words that you can omit.

Price: approx. $55 (Standard Version) and $75 (Editor for Word)


Needs an internet connection to work. May therefore be inappropriate to process confidential texts. Only processes a few pages of text at a time. Some reviews of this software report rather aggressive marketing such as windows popping up repeatedly when you don’t upgrade the software, even after you’ve purchased the full license.

Price: starting from approx. $10 per month


Searches for grammar errors and weak writing style.

Price: approx. $30

Writer’s Workbench

Provides a vast scope of different analyses. Only works when you’ve installed English versions of Microsoft Word and Windows.

Price: approx. $120


Performs some basic checks such as sentence length, repeated words, and wordiness.

Price: approx. $80

After the Deadline

English grammar, style, and contextual spelling checker. Available for a variety of platforms such as WordPress, Confluence, Firefox, Chrome, and OpenOffice.

Price. free (open source)


Web-based proofreader that corrects contextual spelling mistakes, checks for grammar errors, and enhances vocabulary usage.

Price: free (web application); premium approx. $30 per month


Ensures consistency with house styles and between multiple authors. Requires Microsoft Word.

Price: approx. $99


Authoring assistance tool that helps to create rule-compliant and style-compliant text. Available for Microsoft Word and other editors.

Price: not published

Term checker for Simplified Technical English (ASD-STE100)

Helps to make sure that text conforms to ASD Simplified Technical English (ASD-STE100). Uses LanguageTool.

Price: checker for ASD Simplified Technical English (ASD-STE100) issue 3: free; checkers for later issues: not published


Integrable terminology tool.

Price: not published


Simple terminology management system. Can import existing glossaries.

Price: approx. €49

SDL Author Assistant for Adobe FrameMaker

Checks text for writing style and terminology issues.

Price: free (freeware)


Utility for creating terminology lists.

Price: approx. €80


Web-based terminology management system.

Price: approx. €360 per year

SDM MultiTerm Extract

Extracts terms from documents to help crating terminology databases and glossaries.

Price: approx. €400

Acronyms Master

Builds tables of all acronyms that are used within a Microsoft Word document.

Price: approx. $49 (“Lite”) and $85 (“Pro”)

TermWiki Pro

Enterprise terminology management system.

Price: approx. $10 per user per month

TermStar, WebTerm

Price: not published


Guides writers to create content that’s accurate, consistent, search-ready, and translation-friendly.

Price: not published


Software solutions for the creation, management, and dissemination of corporate languages.

Price: not published


Basic terminology checker, integrated into Microsoft Word.

Price: not published


Combines a full-text search engine with various translation and terminology tools.

Price: approx. $795


Extracts terms and creates terminology records from source and target document pairs and translation memories.

Price: approx. $402

MAXit Checker

Monitors technical texts for compliance with Controlled English or ASD-STE100 Simplified Technical English. There are versions available for FrameMaker, Microsoft Word, Arbortext, XMetal, and UltraXML.

Price: not published

Finalyser TERM CHECK

Checks the consistent use of terminology in Adobe FrameMaker, Adobe InDesign, and Microsoft Word. In other editors you can check terms via the included Finalyser Clipboard Listener. For the creation and maintenance of the connected database, you can choose between an XML database and a UniTerm database. Also allows the inclusion of foreign languages.

Price: starting at approx. €1000


Web-based terminology management system.

Price: not published


Quality assurance software for standardized documentation. Ensures compliance with corporate terminology and style guide rules.

Price: not published


Online database that helps you to collect, develop, and apply your organization's terminology.

Price: not published

CLAT Tools

Controlled language authoring utilities.

Price: not published


Customizable proofreading software that finds errors by looking for text patterns defined in an XML file. Alternatively, error detection rules can be written in Java.

Price: free (open source)


Text-To-Speech (TTS) program that can use all voices installed on your computer. By listening to your texts instead of reading them, you can discover many mistakes that you otherwise would overlook.

Price: free (freeware)


Inserts proofreader’s marks into PDF files.

Price: approx. €295


Tool to track down changes to documents in plain text files. Small groups of distinctive characters allow you to highlight insertions, deletions, substitutions, and comments.

Price: free (open source)


Compares or merges two or three text files or directories.

Price: free (open source)

Compare It!

Text comparison utility for text files, Microsoft Word files, Excel files, RTF files, and PDF files.

Price: approx. €27


Visual text file comparison and merging tool.

Price: free (open source)


Compares PDF files page by page, either textually or visually.

Price: free (open source)


Compares documents. Finds changes in fonts, sizes, deletions, inserts, spelling, and location. Capable of inspecting unlike documents, for example a Microsoft Word file vs. a PDF file.

Price: not published

Technical Writers’ Companion

Companion and style guide through all stages of a user assistance project, from the analysis of requirements through structuring the content and designing templates, writing, illustrating, proofreading, and translating.

Price: approx. €99


Reads text files, Microsoft Word files, OpenOffice files, and HTML files, and then generates word frequency lists and concordances from these files. Can spider a whole web site or browser-based help system.

Price: free (open source)

Did you benefit from this guide? Did it save you some time compared to search via Google or other search engines? Please help me to keep the guide free and up to date also in the future. Buy a copy of the PDF version (approx. 120 pages).

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This page was last updated 06/2015


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