Manuscript Analysis Free · in-browser · optional cloud history

Readability Scores

Get Flesch reading ease, grade level, and words-per-sentence for YA, thriller, or literary audiences.

All tools About & FAQ Full cleanup report Filter words
Runs in your browser. We don’t use your drafts to train models.
0 words 0 chars < 1 min
Ctrl+Enter

Paste your text above, then click Analyze — or use Try sample for a quick demo.

Related tools

Manuscript Cleanup Report Opening Hook Checklist Show Don't Tell Hints Filter Word Finder

About this tool

Readability scores help you match prose complexity to your audience — whether middle-grade adventure, commercial thriller, or literary fiction for KDP. This tool calculates Flesch reading ease, estimated U.S. grade level, and average sentence length from your pasted text. Paste a representative chapter from Story Studio or any AI draft; all calculations run locally in your browser.

What you can do

  • Flesch reading ease score with fiction-friendly interpretation
  • Estimated U.S. grade level for audience targeting
  • Average sentence length stat alongside readability metrics
  • Audience guidance explaining what your score range means for readers
  • Works on opening chapters, climaxes, or full manuscript samples
  • Compare chapters to keep tone consistent across a novel
  • Private browser analysis — no manuscript upload

Why manuscript analysis matters for fiction

Rule-based analyzers catch patterns human eyes skim past—especially in AI drafts where filter words, adverbs, and passive voice cluster predictably. Use metrics to prioritize revision, not to flatten your voice. Run a chapter first, fix the worst offenders, then scan the full manuscript.

Five-pass revision order · AI manuscript editing · Manuscript cleanup

How to use it

  1. Paste a representative chapter or sample into the text box.
  2. Click Analyze to compute readability metrics in your browser.
  3. Review Flesch score and grade level against your target audience.
  4. Read the audience guidance for your score range.
  5. Compare additional chapters to confirm consistent complexity.

Tips for fiction authors

  • Most bestselling thrillers score Flesch 60–70. Literary fiction often sits at 40–55. Know your target before revising.
  • Dialogue naturally raises readability scores. If your score is too low, check whether narration has unnecessarily complex sentences.
  • AI drafts often produce uniformly mid-range readability. Varying sentence complexity creates a more engaging reading experience.
  • Test your opening chapter and your climax separately — the climax should often read faster (higher Flesch score) to match pacing.
  • Middle-grade and YA authors should verify sample chapters hit the expected grade band before querying or KDP upload.

Related guides

Why AI Writes Every Character Wanting the Same Thing How to Use AI to Diagnose and Fix Sentence-Level Monotony Why AI Resolves Every Scene's Emotional Beat Too Neatly Use AI to Find Where Scenes Overstay Their Welcome

Common questions
What is a good Flesch score for fiction?

50–70 is standard adult fiction. 70+ reads easier (YA or commercial). Below 50 is dense (literary or technical).

Do readability scores work for fiction?

They are approximations — dialogue and fragments affect scores. Use them to compare chapters, not as absolute quality measures.

Is my text uploaded for analysis?

No. All readability calculations run locally in your browser on Entangled Text.

Why do AI drafts cluster in the middle?

Models default to accessible but uniform complexity. Compare chapters to spot sections that need tightening or expansion.

Should I simplify prose to raise my Flesch score?

Only if your audience demands it. Use the score to catch accidental complexity, not to flatten intentional literary voice.

Comments (0)

Share a tip, question, or experience — keep it useful for other writers.

Prefer a public profile and edit access? Sign in or create a free account.

5,000 left

No comments yet. Be the first to share a thought.