AI Fact Checker

If you want to introduce verified and credible data, fact check is a must have tool for your research papers. The EssaysBot fact checker is AI powered, so it can access the available external databases to compare their data with the pasted text. The tool processes information in real time and provides the verdict (TRUE, FALSE, or UNVERIFIABLE) with explanations and source links.

AI Fact Checker
0 words Free: 200–1,375 words · Paid: up to 6,000 words
Results
Each claim gets a TRUE, FALSE, or UNVERIFIABLE verdict with an explanation and source links.
3 free checks Results come in real time, usually in 5–30 seconds.

Tool Functionality

Paste a text, enter a URL, or upload a document. Click the “Check Facts” button.

Supported formats

The tool processes documents in PDF, DOCX, or TXT formats.

Free Limits

You can scan from 200 to 1,375 words per check at no cost (3 free attempts are available).

Paid Limits

The paid version allows you to process up to 6,000 words per check and 25,000 words a month.

Result

After scanning, you can get three possible results with explanations and sources:

  • TRUE
  • FALSE
  • UNVERIFIABLE

It takes 5 to 30 seconds to process the document and provide the results in real time.

Processing

The duration depends on the complexity level.

What is Fact Checking?

EssaysBot’s AI fact checker finds factual claims in your text and compares them with the external sources that it can access. So, it does not simply determine whether the pasted text is “made-up” or “true”. The tool searches for available evidence that can support:

  • dates;
  • names;
  • statistics;
  • performance claims;
  • technical statements;
  • academic claims.

So, if you describe a battle, the fact checker tool will try to find sources that describe this event using the same or other date, people, and location.

How to Fact Check Your Text

  1. Add your text

    Copy the required part or the entire text and paste it into the dedicated field. You can also enter a URL or upload a PDF, DOCX, or TXT file.

  2. Process it

    Click Check Facts and wait till the system finds facts in your document and checks them against external evidence.

  3. Review the results

    See if your document has TRUE, FALSE, or UNVERIFIABLE information with explanations and source links to each highlighted part.

What Can You Fact-Check?

Academic writing

Research papers, essays, academic claims, statistics, historical statements, research findings

Articles and online content

News articles, factual statements, performance claims, AI-generated articles

Technical content

Technical claims, specifications, measurable performance statements

Other texts

Papers that need external evidence

An essay fact checker can help you verify factual claims easier and faster.

AI Fact Checker for Essays and Research Papers

  • Unsupported claims
  • Numerical errors
  • Incorrect dates
  • Statistics
  • Statements needing more evidence
  • Claims conflicting with available sources

A fact checker for essays is usually used before submitting academic work to verify claims. However, researchers should not completely rely on a fact checker website. To make sure the fact is true or not, they must read the sources given by the tool and avoid citing anything they haven’t checked.

How does Fact Checking Work?

  1. Text analysis

    The checker uses NLP to analyze the submitted text.

  2. Claim identification

    It searches for factual statements that can be tested. At this stage, tokenization, Named Entity Recognition (NER), and text classification are used.

  3. Evidence retrieval

    The fact checker AI searches for relevant sources in real time, utilizing semantic search, dense passage retrieval, and knowledge graphs to check claims.

  4. Claim-evidence comparison

    Transformer-based models analyze how each claim relates to the retrieved material. This step draws on approaches such as BERT-style models and fine-tuned LLM architectures.

  5. Final classification

    The tool checks if information is true and labels it as TRUE, FALSE, or UNVERIFIABLE. In addition, it provides links to the match source with explanations.

What Sources Does the Fact Checker Use?

The AI fact checking relies on credible sources, such as:

  • academic journals;
  • government institutions and databases;
  • reputable news organizations and media;
  • authoritative databases;
  • relevant archives and external databases.

The fact checker generator searches for evidence sources in real time instead of dealing merely with a static knowledge base. In addition, the report contains links to matched sources for users to check the content and evaluate the evidence independently.

How Does the Fact Checker Handle Conflicting Sources?

Sometimes, sources can provide conflicting data like different numbers for the same event. In this case, the system uses a source hierarchy, a source-weighting system, and its own conflict-resolution method instead of simply counting the number of sources.

Note! If sources disagree or the tool cannot access the link for fact verification, the fact checking AI labels such claims as UNVERIFIABLE.

What Do TRUE, FALSE, and UNVERIFIABLE Mean?

TRUE

The fact is verified.

FALSE

The fact contradicts the claim.

UNVERIFIABLE

The fact checking tool cannot access the source or the claim conflicts with the analyzed external sources.

These terms reflect the evidence that the system has found in real time. The generated results are not a substitute for reviewing the original sources.

What Are the Limitations of AI Fact Checking?

Imperfect or unclear output

The fact checker app may produce inaccurate or incomplete information as not all facts have a clear authoritative source for backup.

Context and text disagreement

The interpretation of some claims can strongly relate to the context. When verifying facts, the tool can deal with new publications that are not sufficiently documented or disagree with the claim.

Language limitations

EssaysBot fact checker for research papers deals primarily with English texts. Other languages may work, but accuracy is not guaranteed.

Key terms and facts must be always double-checked before submitting.

How We Test Our Fact Checker

The fact-verification systems are evaluated with established datasets for natural language inference and factual verification. These benchmarks are essential for a factual accuracy checker.

FEVER

Includes more than 185,000 verified claims mapped against Wikipedia evidence and measures how well a system classifies claims as supported or refuted

AVeriTeC

A real-world benchmark covering claim verification together with evidence and justification

SciFact

Pairs scientific claims with evidence from scientific literature

ClimateCheck

Offers domain-specific evaluation based on climate-related claims.

Fact Checker vs Plagiarism Checker

This tool

Fact checker

Checks whether claims can be backed up or contradict external evidence

Different check

Plagiarism checker

Checks whether there is analogical wording and paraphrased information in index sources

A Plagiarism Checker and Fact Checker serve different purposes.

Fact Checker vs AI Essay Checker

This tool

Fact Checker

Checks the accuracy of factual claims

Different check

AI Essay Checker

Search for AI-generated patterns

The AI Essay Checker and fact checker also have different goals. One tool checks if the text is human-written, and the other one – whether claims are accurate.

Fact Checker for Students and Researchers

Students

Before handing in an essay, students can verify dates and statistics, review claims in research papers, and find statements that need stronger evidence.

Researchers

Researchers get an additional round of factual review. The tool checks technical or academic claims and helps trace them back to external sources.

Writers

Writers can fact check text to review statistics and performance claims and spot anything that requires further verification before publication.

What Happens to Your Text?

Sharing

None of the processed texts is shared with third parties.

Free users

The submitted texts of free users can be used to test the system and improve its work. Paid users can disable the use of their data for model training.

Paid users

All tasks of paid accounts are stored and private by default.

Deletion

Only paid users can delete their account/content history.

Free AI Fact Checker

Free use

You can use the tool for free without registration and check three texts, 200-1,375 words each. It can be a pasted abstract, URL, or uploaded document. The result will be backed up with links for individual fact checks.

Subscription

If you plan to go on using the tool or your text is over 1,375 words, you will need paid access: $12.99/month or $8.25/month with annual billing. The maximum number of words to check is 6,000 per check and 25,000 per month.

FAQ

What is a Fact Checker?

It checks the provided claims against the available sources in real time.

How does an AI Fact Checker Work?

It finds facts in the text and checks them, using real-time sources for natural language inference and factual verification.

Can I Fact-check an Essay?

Yes, along with other research and academic papers.

Can the Fact Checker Verify Research Papers?

It compares your claims against the evidence in the available sources and provides the link to them, but you should verify the information manually before presenting it in your paper.

What does UNVERIFIABLE Mean?

It means the tool cannot access the required database to verify information or claims are contradictory.

Does the Fact Checker Search the Web?

Yes, in real time.

What Sources does the Fact Checker Use?

Only credible ones, such as scientific journals, government databases, and reputable news outlets.

Can a Fact Checker Tell Whether Something is True?

It evaluates a claim against available evidence and classifies it as TRUE, FALSE, or UNVERIFIABLE. It should not be treated as an absolute guarantee of truth.

Can I Upload a PDF for Fact Checking?

Yes, as well as DOCX and TXT formats.

Is the Fact Checker Free?

Only three attempts, each one up to 1,375 words.

Still have questions?

Start 3-Day Free Trial

How We Develop and Evaluate Our Fact Checker

Our team includes specialists in software engineering, data science, and computational linguistics. The members also have professional and academic experience in economics, journalism, and public health. Our team applied the real-time source-retrieval and transformer-based claim comparison approaches to verify texts in English.

Key differentiators of the tool:

Fact verificationChecks against external sources in real time
Input optionsMultiple: TXT, DOCX, PDF, URL, copied texts
Academic and technical claimsDesigned to work with factual content
Sources for verificationAcademic journals, government databases, reputable media, and verified databases
Scan resultsTRUE, FALSE, UNVERIFIABLE
Processing time5-30 seconds

Check the Facts in Your Text

Upload a document or paste your URL/text and review factual claims against external sources for free and without registration.

Check Facts for Free