Writing & Content

Readability Score Checker

Analyze text readability with Flesch score and writing complexity band.

Last validated: 2026-02-14

Use this free online Readability Score Checker to analyze text complexity using common readability metrics. It is useful for editing, review, and handoff work where plain-language output or clean text comparison saves time. The form focuses on Text and returns Readability Input, Result, so you can move from input to answer without setting up a spreadsheet or custom script. Run one realistic example, adjust the inputs, and compare how the result changes before you copy or share it. Review the output before sharing, especially when source text contains legal, medical, confidential, or context-heavy language.

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Input Pattern

Enter values in the left panel, keep units explicit, run the calculation, then copy or share the result. Invalid fields are highlighted immediately.

Readability Input

Result

Words: 12

Sentences: 2

Flesch score: 59.75

Band: Fairly difficult

How to use this tool

Enter Text for the readability score checker, keeping units, dates, or text format consistent with the form labels.
Include enough source context for the tool to preserve meaning, then remove anything confidential that should not be processed.
Click "Run the tool" and review Readability Input, Result for the primary output.
Edit the wording or source text and rerun if the summary, comparison, or extracted items need more context.

Worked Example

Auto-generated from the tool's current default or entered inputs.

Example Inputs

Text: This is a short sample sentence. Add your content to evaluate readability.
Word count: 12
Sentence count: 2
Syllable count: 20
Flesch score: 59.745000000000005
Readability band: fairly difficult

Expected Outputs

Word count: 12
Sentence count: 2
Syllable count: 20
Flesch score: 59.745

Interpretation

Word count is 12. Use this as a decision input, not as a standalone conclusion.
Sentence count is 2. Use this as a decision input, not as a standalone conclusion.
Syllable count is 20. Use this as a decision input, not as a standalone conclusion.
Cross-check the result against one alternate input set to validate sensitivity.

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Readability Score Checker

Input Pattern

Readability Input

Result

How to use this tool

Worked Example

Example Inputs

Expected Outputs

Interpretation

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