Long sentence segments
The default threshold flags more than 25 words. Choose 20 or 30 when useful. These thresholds are editorial preferences, not readability standards.
AI SEO · Content Writing
Readability Checker and AI ImproverMake the Meaning Easier to Follow
Find passages worth reviewing, explore three editing directions, and compare important details before you replace your text.
Local passage checksEditable comparisonsHuman meaning review
Your text, under a clearer lens
0 / 4500 charactersLocal checks update as you type.
Local checks run in your browser. Text is sent to the AI provider only when you request revisions. Avoid confidential information. Local edits are lost on refresh.
Inspect the passages
Amber marks segments above your thresholdAdd text to see the sentence review.
Possible wordy phrases
No matches in the small phrase list. Other wording may still need review.
Repeated content words
No content word repeats three times. Repetition can still be useful for clarity.
This small word filter is literal. Necessary topic terms may appear often.
Optional AI editing partner
Compare a light edit, a plain-language version, and a version that is easier to scan. Review meaning before replacing your draft.
Clarity depends on context
Write for a reader, rather than a number
Readability depends on wording, structure, background knowledge, and the task a reader wants to complete. Shortening every sentence cannot address all those needs.
A technical term may be essential for specialists. Beginners may need an explanation, a clear example, or a smaller step before the same term becomes useful.
This checker shows measurable editing cues. It does not assign a reading age, measure comprehension, certify accessibility, or predict search performance.
What each observation means
Paragraph length
Flow review flags prose blocks above 100 words or four sentence segments. Break at changes of idea. Keep a condition beside the action it qualifies.
Sentence variety
Compare the length sequence and short, medium, and fuller prose segments. Four consecutive short or similar-length segments prompt review. Lists follow a different rhythm.
Paragraph flow
Group related sentences, usually two or three, with an occasional one-sentence paragraph. Vary size when useful. Repeated inline colons can signal awkward pseudo-lists.
Wordy phrases
A small English phrase list suggests simpler alternatives. Read each phrase in context before changing it. The list cannot identify every difficult expression.
Repeated content words
Some words occurring at least three times are listed. Repetition can maintain clarity, especially for technical terms. Do not replace precise terms simply to vary vocabulary.
Words are counted as letter or number tokens, including internal apostrophes and hyphens. Sentence boundaries use English segmentation where available, with a simpler fallback.
An editorial example
Simplify the wording without strengthening the claim
Before
Due to the fact that AI can miss important context, a human editor should check every claim before making the decision to publish.
After
Because AI can miss important context, a human editor should check every claim before publishing.
The revision simplifies the lead-in while keeping the reason and action connected. It preserves the uncertainty and the strength of the original advice.
Three editing directions, three useful trade-offs
01
Light edit
Preserve the original voice and structure while reducing friction. Use this when the draft already fits its reader and needs focused cleanup.
02
Plain language
Use familiar words with varied sentence lengths and connected ideas. Keep precise terms, useful emphasis, and qualifications. Simpler language can still carry necessary detail.
03
Easy to scan
Split dense prose where the idea changes. Use real lists only when appropriate. Preserve transitions, conditions, and the relationship between ideas.
Readability questions
Can I check text without using AI?
Yes. Counts, highlights, phrase matches, and repeated-word observations run locally as you type. Only the revision request sends text to the provider.
Does the tool calculate Flesch or a school grade?
No. This version focuses on transparent passage checks. It does not estimate syllables, reading age, school grade, or a formula-based readability score.
Will a shorter revision rank better?
This tool does not predict rankings or traffic. Choose wording that helps your reader understand the actual topic and preserves accurate detail.
Does it verify that AI kept the meaning?
No. Literal checks flag certain numbers, required terms, and caution words. They can miss meaningful changes or flag harmless rewording.
Can the tool split a long paragraph?
Yes. Paragraph splitting is requested by default. It groups related ideas and uses blank lines. Turn it off to request existing boundaries, then review the output.
Should every sentence be short?
No. Mix concise emphasis with fuller explanations where useful. Transitions should clarify existing relationships. Length bands are review cues, not universal readability rules.
Can I revise a complete long article?
Work section by section within the 4500-character source limit. Review transitions and overall structure separately when combining edited sections.
Will changing the source overwrite my comparison?
No. The comparison preserves the submitted original. Failed regeneration keeps previous revisions and edits. Successful regeneration creates a new comparison.
How do I save the revision?
Copy or download the selected text. Apply a revision to the source only after review. Local work is lost on refresh, so save it before leaving.
Review W3C writing guidance, ProWritingAid sentence variety guidance, and paragraph structure guidance. For your wider workflow, use the Article Outline Generator to review structure before editing individual sections.