Does this tell me if text was written by AI?

This sentence editor measures style, not authorship. Its heuristic index is not an AI probability. The homepage can also show independent detector probabilities when a detector is connected. Detectors can make mistakes, particularly on short or unfamiliar passages.

My writing is my own but keeps getting flagged. Why?

Human and AI writing can share stylistic patterns. The local editor highlights even sentence lengths, stock wording and other patterns to help you review your prose. These signals do not prove why a particular detector flagged it.

What does a rewrite actually change?

It restores natural cadence: varied sentence length, contractions where they fit, uncertainty preserved, fewer redundant connectives like 'furthermore'. Figures, dates and quotations are checked after every draft and any draft that loses one is rejected. You can also rewrite a single sentence, or mark sentences to keep exactly as written. Read the result before you use it — you remain accountable for what it says.

Scanning is free and unlimited — it runs in your browser with no AI model involved, so it costs us nothing. Rewrites use language models, so the free tier includes 600 rewritten words a day, up to 300 at a time, with no account needed. A rewrite that does not lower your score does not count.

Do you store the text I paste?

The scan runs in your browser; your text is not sent to us. Rewrites are sent to a model provider to be generated — DeepSeek on the free tier; Anthropic and OpenAI on paid plans. Do not paste anything confidential, unpublished under embargo, or covered by a client NDA.

Your sentence editor

Review the style patterns in each sentence. Rewrite one sentence at a time with three drafts to choose from, keep any sentence exactly as written, or rewrite the whole passage at once.

Try a sample:

Your text

90 words · 6 sentences

Select any sentence to rewrite it on its own, or keep it exactly as written.

S.01In today's digital landscape, it is important to note that businesses must navigate the complexities of modern commerce.

stock phrasing: "it is important to note"18 words

S.02A 2024 Gartner survey found that 73% of organisations consider this a priority.

Figures: 2024, 73%13 words

S.03Furthermore, companies can be significantly more effective when they leverage cutting-edge technology solutions.

stock phrasing: "furthermore"13 words

S.04Moreover, this approach generally tends to underscore the importance of strategic planning initiatives.

stock phrasing: "moreover"stacked hedging13 words

S.05Additionally, organisations that harness the power of data typically achieve faster, cheaper, and more reliable outcomes.

stock phrasing: "harness the power"rule-of-three list16 words

S.06Consequently, it is worth noting that a holistic approach may be relatively beneficial for all stakeholders involved.

stock phrasing: "consequently"stacked hedging17 words

Source: Written by an AI assistant to show the classic tells at full strength: stock connectives, stacked hedging, evenly sized sentences.

Two or more markers One marker Kept as written, or figures locked

ReadingLive · in your browser

83/ 100 style indexHigh exposure

0 · fewer patternsmixed100 · more patterns

Many measured style patterns appear together. This is a style reading, not an AI-authorship probability.

Sentences

in this passage

Marked

two or more markers

Sample size

moderate

text length only

Enough text for a usable reading, though short passages still swing.

Sentence rhythm

Words per sentence. Similar bars show even sentence lengths. This describes rhythm and does not establish authorship.

Signals measured

Sentence-length variation100

Sentences average 15 words with a variation of 0.14. Sentence lengths are similar; consider whether the rhythm serves the ideas.

LLM-favoured phrasing100

Found 11 instances of phrasing overrepresented in model output: "it is important to note", "in today's digital landscape", "navigate the complexities", "harness the power", "furthermore", "moreover".

Hedging language100

6 hedges ("can be", "may be", "tends to", "generally"). Qualifications can be necessary; check that uncertainty remains accurate.

Rule-of-three lists51

1 three-item list. Three-item lists can be useful in either human or AI writing.

Em-dash density0

No em-dashes.

How to read this. This is a local heuristic style index. Human and AI writing can share these patterns. It has not been calibrated as an authorship probability or to predict other detectors. Try the Darwin and GPT samples to see the overlap.

Rewrite the whole passage

Several drafts per rewrite; the best-measuring one is kept.

Questions

Does this tell me if text was written by AI?: This sentence editor measures style, not authorship. Its heuristic index is not an AI probability. The homepage can also show independent detector probabilities when a detector is connected. Detectors can make mistakes, particularly on short or unfamiliar passages.
My writing is my own but keeps getting flagged. Why?: Human and AI writing can share stylistic patterns. The local editor highlights even sentence lengths, stock wording and other patterns to help you review your prose. These signals do not prove why a particular detector flagged it.
What does a rewrite actually change?: It restores natural cadence: varied sentence length, contractions where they fit, uncertainty preserved, fewer redundant connectives like 'furthermore'. Figures, dates and quotations are checked after every draft and any draft that loses one is rejected. You can also rewrite a single sentence, or mark sentences to keep exactly as written. Read the result before you use it — you remain accountable for what it says.
What is free?: Scanning is free and unlimited — it runs in your browser with no AI model involved, so it costs us nothing. Rewrites use language models, so the free tier includes 600 rewritten words a day, up to 300 at a time, with no account needed. A rewrite that does not lower your score does not count.
Do you store the text I paste?: The scan runs in your browser; your text is not sent to us. Rewrites are sent to a model provider to be generated — DeepSeek on the free tier; Anthropic and OpenAI on paid plans. Do not paste anything confidential, unpublished under embargo, or covered by a client NDA.

The full method — every signal and its weight — is published on the method page.