Free trial
No trial is needed: the detector is free to use without an account, a word limit or a daily cap.
Learn moreAI Content Detector by Leap
Sentence level AI scoring that runs entirely in your browser
Beginner
Own AI Content Detector by Leap? Verify ownership to get a dofollow link
What is AI Content Detector by Leap?
AI Content Detector by Leap is an AI checker tool. Free, no sign-up AI detector from Leap that scores pasted text from 0 to 100 and breaks the result down sentence by sentence. It runs in the browser with no word limit, reads five style signals rather than perplexity, and is built for quick self-checks rather than institutional integrity rulings.
Leap's AI Content Detector is a free browser based checker that scores a piece of text from 0 to 100 for how much it reads like machine output. Paste at least 40 words, press Check text, and the result arrives instantly: an overall score, a list of the sentences that stand out, and the five writing signals behind the number. There is no word limit, no daily cap and no sign-up, and the text never leaves the browser tab. The scoring model is deliberately simple. Leap does not run a language model, so it does not measure perplexity or train a classifier on human and AI corpora the way Turnitin, GPTZero or Copyleaks do. Instead it counts style habits: how much sentence length varies (even rhythm), stock phrases such as "in today's fast-paced world" per 100 words, hedging and transition words, em dash usage, and repeated longer words. Scores fall into four bands, from 0 to 29 (reads human) up to 85 to 100 (strongly AI), and every sentence receives its own score from the same signals. That sentence view is the practical part: a few high scoring sentences inside an otherwise human draft usually means a pasted passage or an AI polish pass, which a single document percentage would hide. The tool suits three audiences. Students can check their own drafts before submitting, since formal academic prose often trips detectors. Teachers and professors get a readable, paragraph level talking point rather than a bare percentage from the school's licensed system. Editors, publishers and content teams can triage freelance submissions or run a last check before a page goes live. Leap is explicit that the output is a signal, not proof, and it recommends a second detector for high stakes calls. Against alternatives, Leap is the fastest and most private option but the least rigorous. Turnitin lives inside institutional subscriptions and hides scores from students, GPTZero and Copyleaks impose free tier limits, and QuillBot bundles detection with paraphrasing. Leap sits beside these as a quick self-check. An optional paid Rewrite step, plus a separate free humanizer, handles cleanup after a flag.
How do you use AI Content Detector by Leap?
1Open the detector and paste your text
Go to the tool page and drop at least 40 words into the Text to check box. A full paragraph gives the signals more to read, and there is no upper word limit.2Load the sample if you have nothing to test
Press Try an example to load a paragraph written the way chatbots tend to write, so you can see what a high score and its signals look like before testing your own draft.3Run the check and read the score
Press Check text. The 0 to 100 score, the standout sentences and the five signals appear at once, since nothing is sent to a server. Compare the number against the four score bands.4Inspect the sentence breakdown
Open Every sentence to see each sentence scored in reading order. Rewrite or delete the ones that read most machine written, then run the check again on the revised draft.5Learn what the signals mean
Read the guide to how AI detectors work if the score surprises you. It explains perplexity, burstiness and why formal or non-native English writing sometimes gets flagged.6Clean up a flagged draft
Run the text through Leap's free AI humanizer, which strips stock phrases and em dashes and marks same-length sentences, then check the result again in the detector.
Pros and cons
Pros
- Completely free with no word limit, daily cap or account requiredAI
- Runs locally in the browser tab, so text is not uploaded or storedAI
- Sentence level scores show exactly which lines read as machine writtenAI
- Explains the five signals behind each number, which teaches writers what to fixAI
- Handles short inputs from 40 words and includes a sample paragraph for testingAI
Cons
- Does not use a language model or perplexity, so it is less rigorous than Turnitin, GPTZero or CopyleaksAI
- Cannot name which model produced a text and cannot predict scores from other detectorsAI
- Short texts under roughly 50 words are unreliable, as with every detector of this kindAI
- No integrations, accounts, history or team features: each check is a one-off pasteAI
- Optional Rewrite and the humanizer are separate paid or linked products, not part of the checkAI
How much does AI Content Detector by Leap cost?
Pricing
The detector itself is free with no sign-up, no word limit and no daily cap, because the check runs in the browser. The only paid element is Rewrite, an optional full rewrite of the text by a language model, offered under the result. No subscription prices are listed on the page.
Learn moreFeatures
Scores text from 0 to 100 against four bands (reads human, mixed signals, likely AI, strongly AI). Gives a per sentence score in reading order and reports five signals: sentence length variation, stock phrases per 100 words, hedging and transitions, em dash use and repeated words. Accepts any length above 40 words, includes a sample paragraph, and runs entirely client side so text is not uploaded or stored.
Frequently asked questions about AI Content Detector by Leap
How much does AI Content Detector by Leap cost?
The detector itself is free with no sign-up, no word limit and no daily cap, because the check runs in the browser. The only paid element is Rewrite, an optional full rewrite of the text by a language model, offered under the result. No subscription prices are listed on the page.Does AI Content Detector by Leap offer a free trial?
No trial is needed: the detector is free to use without an account, a word limit or a daily cap.How do you use AI Content Detector by Leap?
The walkthrough on this page covers 6 steps: 1. Open the detector and paste your text 2. Load the sample if you have nothing to test 3. Run the check and read the score 4. Inspect the sentence breakdown 5. Learn what the signals mean 6. Clean up a flagged draft.What platforms does AI Content Detector by Leap support?
AI Content Detector by Leap is available on Web App.What are the limitations of AI Content Detector by Leap?
Does not use a language model or perplexity, so it is less rigorous than Turnitin, GPTZero or Copyleaks. Cannot name which model produced a text and cannot predict scores from other detectors. Short texts under roughly 50 words are unreliable, as with every detector of this kind.
Status
StatusActive
Views0
Outbound clicks0
Added10/21/2026
Platforms
Web App
Pricing
FreeFreemium
