Explainable scoring
Every result ships with the evidence behind it — not just a percentage — so you can see which signals actually drove the classification.
Free AI content detector for pasted text or a live URL — get an explainable AI score, evidence, and sentence-level analysis.
Check pasted content or analyze a webpage URL for signals commonly associated with AI-generated and AI-assisted writing.
Enter a public article or webpage URL. We'll fetch the page, extract its primary content, and analyze the writing signals.
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Pick "Paste Text" to check written content directly, or "Scan Webpage" to analyze a live, publicly accessible URL instead.
Paste the article, essay, email, or draft into the text box — or drop in the full URL of the page you want to check.
Click Analyze. For URLs, the tool fetches the page and extracts the primary content before scanning it for AI-associated writing signals.
Review the AI-likelihood score, classification, and confidence level, then check the evidence and sentence-by-sentence breakdown to see exactly what drove it.
| Input | Output | Typical saving | Best for |
|---|---|---|---|
| Pasted text (essay, article, blog post, email, report) | AI-likelihood score + evidence list + sentence-level labels | Skips manual copy-paste for standalone drafts | Reviewing your own writing before you publish or submit it |
| Public webpage URL | Extracted page content run through the same detection report | No need to manually copy a full published article | Auditing live pages, competitor content, or guest posts |
We ran the same files through the popular alternatives first. These are the gaps we found, and what this tool does instead.
ToolsVale scans a live webpage URL directly and shows the evidence and sentence-level signals behind every score, not just a number.
test: Paste an obviously AI-generated paragraph and confirm the sentence-level breakdown highlights the specific lines driving the result.Every result is shown as a probabilistic signal with a confidence level and a clear disclaimer — never framed as proof.
test: Run any human-written sample and check that the tool reports a signal and confidence range, not an absolute guarantee either way.Every result ships with the evidence behind it — not just a percentage — so you can see which signals actually drove the classification.
Individual sentences are labeled and color-coded, making it easy to spot exactly which parts of a text triggered an AI-associated signal.
The webpage scanner fetches a URL and extracts its primary content automatically, so you can check a live page in seconds.
Run checks without signing up or paying. Content is only sent for analysis when you actively choose to run it.
ToolsVale AI Content Detector helps you check whether text contains patterns commonly associated with AI-generated or AI-assisted writing. Paste text directly into the detector or scan a public webpage URL without manually copying the entire article.
The detector analyzes available writing signals and provides an easy-to-understand result with confidence, supporting evidence, and sentence-level analysis when available.
Don’t want to copy and paste an entire article? Use the webpage scanner to analyze content directly from a public URL.
Enter the URL of an article, blog post, documentation page, or other publicly accessible webpage. ToolsVale fetches the webpage, extracts its primary text content, and sends the extracted content through the AI detection analysis.
You can also paste an essay, article, blog post, report, email, assignment, or other written content directly into the detector.
The analysis looks at characteristics of the submitted writing and presents the available signals in a simple report. Longer samples generally provide more information for analysis than very short passages.
AI content detectors analyze characteristics of writing rather than directly observing who created the text. Depending on the analysis engine, these characteristics can include sentence structure, vocabulary variation, predictability, repetition, consistency, and other linguistic or statistical patterns.
Sentence structure and variation can provide signals about how consistently a piece of writing is constructed.
Vocabulary diversity and repeated word patterns can provide additional information when analyzing a sufficiently long sample.
Highly predictable language patterns may contribute to an AI-associated classification depending on the content and analysis system.
Repeated phrases, similar sentence structures, and unusually consistent patterns can be among the signals considered during analysis.
An AI detection result indicates how strongly the analyzed content matches patterns evaluated by the detection system.
A stronger AI-likelihood signal means the text contains more characteristics associated with AI-generated writing according to the analysis. A weaker signal means fewer such characteristics were detected.
The result should not be interpreted as definitive proof of authorship. Human-written content can sometimes resemble AI-generated writing, while AI-generated content can sometimes be difficult to detect, particularly after substantial editing or rewriting.
AI detection can be used as one additional signal when reviewing written assignments. It should not be treated as the sole evidence of academic misconduct.
Writers and editors can use AI detection to review passages that may contain characteristics associated with generated text.
SEO teams can analyze articles and website content for AI-associated writing patterns as part of a broader editorial review process.
The URL scanner makes it possible to analyze publicly accessible webpages without manually copying large amounts of content.
Businesses and publishing teams can use AI detection as one part of a broader content quality and review workflow.
An AI detector and a plagiarism checker measure different things.
An AI detector looks for characteristics commonly associated with AI-generated or AI-assisted writing. A plagiarism checker looks for matching or substantially similar content from existing sources.
For example, original AI-generated content may not match another webpage, so a plagiarism checker could find no matching source while an AI detector identifies AI-associated writing signals.
For important academic, professional, or editorial decisions, these tools should be used together with human review and other available evidence.
No AI detector should be treated as a guaranteed method for proving whether a person used AI.
AI detection systems estimate the presence of patterns associated with AI-generated writing. Human-written content can sometimes trigger these patterns, while edited or paraphrased AI-generated content can sometimes be harder to detect.
For this reason, ToolsVale presents AI detection as a probabilistic analysis rather than definitive proof of authorship.
An AI content detector is a tool that analyzes written text for patterns commonly associated with AI-generated or AI-assisted writing.
AI detectors analyze characteristics such as sentence structure, vocabulary variation, predictability, repetition, and other linguistic patterns. The exact signals vary between detection systems.
An AI detector may identify patterns associated with text produced by ChatGPT and other generative AI systems. However, a detector should not be treated as definitive proof that a specific AI system created the content.
Yes. ToolsVale supports webpage URL analysis. Enter a publicly accessible webpage URL and the tool can fetch the page, extract its primary content, and analyze the available text.
Yes. ToolsVale’s AI content detector is available as a free online tool.
Yes. AI detection is probabilistic. AI-generated content can sometimes produce fewer detectable signals, particularly after editing, rewriting, or other transformations.
Yes. Human-written content can contain characteristics that resemble AI-generated writing. Detector results should therefore be treated as signals rather than definitive evidence.
An AI detector looks for writing patterns associated with AI-generated content, while a plagiarism checker looks for matching or substantially similar material from existing sources.
You can analyze articles, blog posts, essays, reports, website copy, documentation, and other written content. URL scanning requires a publicly accessible webpage with extractable text.
No. AI detection should be one part of a broader review process. For high-stakes decisions, consider drafts, revision history, sources, citations, writing samples, and human review alongside any detector result.
Last reviewed August 2026 · this tool runs on-device.
An AI content detector is a tool that analyzes written text for patterns commonly associated with AI-generated or AI-assisted writing.
AI detectors analyze characteristics such as sentence structure, vocabulary variation, predictability, repetition, and other linguistic patterns. The exact signals vary between detection systems.
An AI detector may identify patterns associated with text produced by ChatGPT and other generative AI systems. However, a detector should not be treated as definitive proof that a specific AI system created the content.
Yes. ToolsVale supports webpage URL analysis. Enter a publicly accessible webpage URL and the tool fetches the page, extracts its primary content, and analyzes the available text.
Yes. ToolsVale's AI content detector is available as a free online tool.
Yes. AI detection is probabilistic. AI-generated content can sometimes produce fewer detectable signals, particularly after editing, rewriting, or other transformations.
Yes. Human-written content can contain characteristics that resemble AI-generated writing. Detector results should be treated as signals rather than definitive evidence.
An AI detector looks for writing patterns associated with AI-generated content, while a plagiarism checker looks for matching or substantially similar material from existing sources.
You can analyze articles, blog posts, essays, reports, website copy, documentation, and other written content. URL scanning requires a publicly accessible webpage with extractable text.
No. AI detection should be one part of a broader review process. For high-stakes decisions, consider drafts, revision history, sources, citations, writing samples, and human review alongside any detector result.
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