A readability checker is useful when a draft says the right thing but still feels heavy. The goal is not to chase a perfect score. The goal is to find where readers slow down, skim past the point, or give up before the action.
Paste your draft into the free Readability Checker. It runs locally in your browser and gives you a fast pass on reading level, sentence length, paragraph density, reading time, and the spots most likely to need a rewrite.
What A Readability Checker Is Actually Good For
A score is only useful when it points to a specific edit. Use the checker to find friction, then decide what kind of rewrite the draft needs.
- Long sentences that carry two or three ideas at once.
- Paragraphs that look fine in a doc but become walls on mobile.
- Abstract phrasing where a concrete verb would be easier.
- Intro sections that delay the reason someone should keep reading.
- Support or onboarding copy that hides the next action.
Quick Readability Checklist
[ ] The first paragraph says what the reader gets
[ ] Most sentences carry one idea
[ ] Long paragraphs are split before mobile reading gets painful
[ ] Abstract nouns are replaced with concrete verbs where possible
[ ] Headings preview the section instead of being decorative
[ ] The CTA or next step is visible after the explanation
Example: Improve A Dense Paragraph
Readability problems usually come from too many ideas packed into one block. Split the work before polishing the wording.
Before
The new editor provides teams with a centralized environment for composing, reviewing, approving, and publishing updates while also helping stakeholders understand the status of every draft.
Easier To Read
The new editor gives teams one place to write, review, approve, and publish updates. Stakeholders can also see the status of every draft.
The rewrite keeps the same meaning, but it splits the sentence, removes "provides teams with," and makes the second benefit easier to see.
Which Signals To Check First
- Sentence length: split any sentence that explains a setup, exception, and action at the same time.
- Paragraph length: on landing pages and docs, dense paragraphs often fail before the words do.
- Reading time: if the page is longer than the intent needs, move details into examples or FAQs.
- Grade level: treat it as a warning light, not a grade. The fix is usually clearer structure.
A Practical Readability Workflow
- Paste the whole draft into the readability checker.
- Fix the longest sentences before changing tone.
- Split paragraphs that would feel heavy on a phone.
- Rewrite weak lines with the sentence or paragraph rewriter.
- Run the draft again and compare the before/after shape.
For one awkward line, use the Sentence Rewriter. For a block that needs better flow, use the Paragraph Rewriter. If you need exact counts before publishing, check the Word Counter or the Reading Time Calculator.
After editing, compare the original and cleaned-up version in the Text Diff Checker so you can see whether the draft got clearer without losing meaning.
FAQ
What does a readability checker measure?
A readability checker looks at signals like sentence length, word length, paragraph density, reading time, and scanability so you can spot copy that asks too much from the reader.
What readability score should I aim for?
Aim for the lowest score that still respects the topic. Marketing, support, onboarding, and product copy usually works best when sentences are short, concrete, and easy to scan.
Can a readability checker make writing too simple?
Yes, if you treat the score as the only goal. Use the score to find friction, then keep the meaning, nuance, and voice that the draft actually needs.
Is JustWrite's readability checker free?
Yes. The JustWrite readability checker is free, runs in your browser, and does not require an account.
Check Readability Before You Polish Forever
Find the heavy sentences, split the dense paragraphs, and keep the draft moving toward the reader's next action.