Tensetti Plain Language Checker

Summary

Tensetti Plain Language Checker is a web tool for spotting clarity issues in technical documents. The product description calls it ClearSpec and says it runs 22 checks across action clarity, sentence structure, terminology, safety language, and consistency. The maker says its rules are deterministic, so identical inputs produce identical output. The free checker analyzes pasted text locally in the browser using a Web Worker; it says text is not sent to the server, analytics, or logs. Free use requires no account and accepts up to 1,000 words, displaying the first ten findings. The checker reports issues and editing actions, but does not rewrite text or determine whether safety content is safe. Pro costs 120.00 EUR per year and adds larger local documents, all findings, a personal termbase, local opening of TXT, Markdown, and DOCX files, and PDF and CSV report export. DOCX parsing does not interpret layout, images, tables, or cross-references. Team costs 349.00 EUR per year and adds five users, a shared termbase and style profile, approved exceptions, batch queue, and review history.

Who it is for

It suits people reviewing technical writing for clarity issues who want repeatable checks on pasted text. Pro and Team may suit users who need local document opening or shared review features.

Compared on AI readability checkers

Free plan

Yestools.tensetti.io

Readability scores

0 scorestools.tensetti.io

Grade-level analysis

Notools.tensetti.io

Sentence complexity

Yestools.tensetti.io

Plain-language rewrites

Notools.tensetti.io

Input formats

texttools.tensetti.io

Facts

Purpose

ClearSpec checks technical documents for clarity issues that can make instructions hard to understand or use.tools.tensetti.io · 7 Oct 2026

Checks

The checker runs 22 named checks covering action clarity, sentence structure, terminology, safety language and consistency.tools.tensetti.io · 7 Oct 2026

Deterministic results

The maker says the rules are deterministic and the same inputs produce the same output.tools.tensetti.io · 7 Oct 2026

Browser processing

The free checker analyses pasted text in the browser using a Web Worker and says text is not sent to the server, analytics or logs.tools.tensetti.io · 7 Oct 2026

Free limit

The free checker accepts up to 1,000 words and shows the first ten findings.tools.tensetti.io · 7 Oct 2026

Paid file support

Pro supports local opening of TXT, Markdown and DOCX files; DOCX parsing does not interpret layout, images, tables or cross-references.tools.tensetti.io · 7 Oct 2026

No PDF input

The maker states that PDF input is not offered, though paid plans include PDF report export.tools.tensetti.io · 7 Oct 2026

Human review

The checker reports findings and editing actions but does not rewrite text or decide whether safety content is safe.tools.tensetti.io · 7 Oct 2026

Standards limitation

ClearSpec says it is not an ASD-STE100 checker or certification service and does not certify ISO 24495-1 conformance.tools.tensetti.io · 7 Oct 2026

Integrations

The product page describes pasting text and locally opening supported files, and does not name third-party integrations.tools.tensetti.io · 7 Oct 2026

Support

Tensetti says support emails are answered by a named person within two working days.tools.tensetti.io · 7 Oct 2026

Maker

Tensetti Tools says it is built and maintained by Jonatan Tensetti in Sweden.tools.tensetti.io · 7 Oct 2026

Company

Headquarters

Swedentools.tensetti.io · 28 Sept 2026

Where it ranks on Everything Xiaomi

• Best AI Readability Checkers in 2026#8 of 25

Sources

• tools.tensetti.io/plain-language-checker· checked 7 Oct 2026
• tools.tensetti.io/technical-writing-checker· checked 7 Oct 2026
• tools.tensetti.io/about· checked 7 Oct 2026