Side by side

Readability Analysis Tool (RAT) vs ReadabilityTool

Both stand on readability checkers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Readability Analysis Tool (RAT)

Free plan LinuxWindows

Choose RAT if you need configurable German readability checks for .docx files and can run command-line Java software. Look elsewhere if your documents use other file types or languages, or you need a hosted interface.

Visit Readability Analysis Tool (RAT)

ReadabilityTool

Free plan Web

ReadabilityTool provides six scores and text breakdowns without an account, subscription, or analysis limit. Keep the SMOG sentence minimum in mind when interpreting that score.

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The facts

	Readability Analysis Tool (RAT)	ReadabilityTool
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Linux, Windows	Web
Lowest paid plan	Free or on request	Free or on request
Plans published	1	1
Maker	Not published	Not published
Website	github.com	readabilitytool.com
On readability checkers	#16 of 25	#20 of 25

Readability Analysis Tool (RAT): what it does well

Preserves the original .docx while creating an annotated copy.
Generates an HTML report with statistics, formulas and anomalies.
Rules and thresholds can be configured.
Includes a quality gate for text difficulty.
Licensed under GPLv3.

What to know first

Documented input support is limited to .docx.
Documented readability rules support German.
Runs from the command line rather than a hosted web interface.

ReadabilityTool: what it does well

Calculates six readability formulas.
Reports word count, sentence count, and estimated reading time.
No account or installation is required.
All formulas are available at no cost.
Text is processed in the browser, according to the site.

What to know first

SMOG needs at least 30 sentences for accuracy.
The tool is available on the web.

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