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AI Tools / Plagiarism Checker Guide

Free AI Plagiarism Checker

Paste your text, upload a document, or enter a URL. Get a scan for copied passages across the web and an AI-detection score in seconds.

Plagiarism Checker Guide
0 / 1,500 words
Unlock with a Letaido account https://example.com/article
Model

3 runs per day, no sign-up required.

Run unlimited plagiarism checks in your Letaido workspace

Add the plagiarism checker to your workspace for unlimited scans, custom brand voice, and seamless connection to other Letaido tools. No daily limits, no switching platforms.

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How it works

1

Paste, upload, or link to your content

Enter text directly, upload a document, or paste a page URL. The tool accepts all three inputs.

2

Run the scan

The AI checks your content against live web sources and evaluates how much reads as AI-generated.

3

Review matches and scores

See flagged passages with source links and an overall AI-detection percentage. Act on what needs fixing.

Live web comparison

Your text is scanned against current web pages, not a static database. You see real matches with links to the sources where copied passages appear.

AI-detection scoring

Get a percentage estimate of how much content reads as AI-generated. Useful if you need to flag or revise passages that lack human texture.

Three input methods

Paste text, upload a document, or enter a URL. Check drafts, published pages, or files from your team without reformatting.

Direct source links

Every flagged match includes a clickable link to the original source. No guesswork about where the overlap exists.

No signup for試用

Run three scans per day without creating an account. Test the tool on real content before committing to a workspace.

Workspace integration

Add the tool to your Letaido workspace for unlimited scans, custom brand voice, and connection to other content tools in your workflow.

How to get the most out of the plagiarism checker

A quick scan is useful, but knowing what to do with the results makes the tool valuable.

Run the check before you publish, not after

The best time to catch copied content is in draft. Run the scan on outlines, briefs, and first drafts from freelancers or AI tools before the work goes live. You avoid the scramble of pulling down published pages or fielding complaints from original authors.

If you manage a content team, make the plagiarism check a standard gate in your review process. Every piece gets scanned before it reaches the editor or approval stage. You catch accidental duplication early and train writers to source and paraphrase correctly from the start.

Investigate flagged passages, don't panic

A match does not always mean theft. Common phrases, widely quoted statistics, and boilerplate language will flag because they appear on many sites. Click through to the source link and compare context. If the match is a standard industry term or a two-word overlap, you can ignore it. If it is a lifted paragraph, rewrite or attribute.

Use the AI-detection score as a signal, not a verdict. A high percentage means the text lacks variety, voice, or specific detail. Revise those sections by adding examples, tightening logic, or injecting a point of view. The goal is not to trick the detector but to make the writing more human and useful.

Check URLs of competitor content and templates

Paste a competitor page URL to see if their content is copied from elsewhere or reads as AI-generated. This helps you understand whether you are competing with original research or recycled summaries. You can also spot patterns in how they source and structure content.

Run the check on your own page templates, legal disclaimers, and FAQ text. Boilerplate sections often get copied across industries, and you want to know if your standard language matches dozens of other sites. If it does, consider rewriting to avoid duplicate-content penalties or looking generic.

Combine the plagiarism check with other Letaido tools

Add the plagiarism checker to a Letaido workspace and connect it to the rewriter, SEO optimizer, or brand-voice tools. After you scan a draft and find copied passages, send those sections to the rewriter for a fresh version that keeps the meaning but changes the structure. Then run the new version through the plagiarism checker again to confirm it clears.

Use the AI-detection score to guide your editing. If a section scores high, paste it into the Letaido rewriter with a prompt to add specifics or tighten the argument. The workspace lets you move content between tools without switching tabs or losing context, so your workflow stays tight from scan to final draft.

Frequently asked

What counts as a plagiarism match? +

A match means a passage in your text closely resembles content found on a live web page. The tool flags overlaps and provides a link to the source. Short common phrases may match without being true plagiarism, so review each flag in context.

How accurate is the AI-detection score? +

The score estimates what percentage of your text reads as AI-generated based on patterns in word choice, sentence structure, and predictability. It is a signal, not a guarantee. Use it to identify sections that need more human voice or specific detail.

Can I check a published page or only drafts? +

You can check both. Paste a URL to scan a published page, upload a document, or paste draft text directly. The tool works on any content you can input.

Does the tool store or share my content? +

Your content is processed to run the scan and then discarded. It is not stored, indexed, or shared. Each scan is isolated and private.

What should I do if the tool flags my own original content? +

Click through to the source link and compare. If the match is minimal or coincidental, ignore it. If you published similar content elsewhere, you may be flagging your own work. If the match is substantial and from another site, investigate whether someone copied you or if you unknowingly duplicated a source.

How many scans can I run without a Letaido account? +

You can run three scans per day without signing up. For unlimited scans and access to other tools, add the plagiarism checker to a Letaido workspace.

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Add the plagiarism checker to your AI workspace

Run unlimited scans, save your results, and connect the plagiarism checker to every other tool in your Letaido workflow. Set your brand voice once and apply it across all your content tasks.

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