A2Z Tools Plain Language Analyzer vs Eclipse Readability Studio

A2Z Tools Plain Language Analyzer is a free web tool for checking English drafts against plain-language guidance. It links each finding to its source guideline and can flag complex words, GOV.UK words to avoid, hidden verbs, “shall” used for requirements, double negatives, passive voice, long sentences, and long words. A Flesch-Kincaid estimate compares the draft with an audience target. Defaults set thresholds for general-public text, service instructions, or professional readers, and users can add organization jargon with plainer alternatives using an equals sign. Findings can be exported as CSV. Text that is pasted, typed, or dropped is processed in the browser tab; the maker says it is not uploaded, logged, stored, or sent to analytics. The analyzer checks English only, combining US and UK word guidance. Scores measure sentence and word length rather than meaning, so findings are prompts for human review. It is free online at free.

Eclipse Readability Studio analyzes documents, reports their reading levels, explains readability test results and recommends ways to improve text. It includes grammar checking and offers more than 60 readability tests in English, Spanish and German. Users can analyze a single document or process batches. Supported formats include MS Word, OpenDocument, RTF, HTML, PostScript and text files. The software is free and open source, with versions for Linux, macOS and Windows. The Eclipse project lists its status as Incubating and its license as Eclipse Public License 2.0, while noting that some source code and binaries may have different terms. The project proposal says Readability Studio has provided readability formula and grammar analysis since 2006, and names Blake Madden as project lead and copyright holder. Stated use cases include education, military and government, healthcare, publishing and students. No integrations are stated on the product or project pages.