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Detectors: choose the question before the tool

AI detectors and plagiarism detectors should not be treated as interchangeable answers to whether a paper is acceptable. Start with the question you need to investigate: source matches, an AI indicator or the rules for assistance. This hub routes you to existing explanations rather than presenting an untested ranking.

Which resource do I need?

Your questionStart hereHow to use it
I want an overview of AI detection and its limitsAI detection guideRead the limitations before interpreting a flag.
I want to understand PCO's provider explanationPlagAware-powered AI check explanationRead what the provider's indicator means and what it cannot establish.
I am comparing source-matching servicesPlagiarism checker comparisonUse the dated service descriptions as starting points, not a hands-on accuracy ranking.
I want to know what my course usesCollege detection guideAsk about the specific setup rather than assuming one tool is universal.
My real question is whether assistance is allowedUniversity policy guideRead the rules separately from any software result.

Make a comparison you can actually use

Write your intended use before opening a product table. For example: “I want to inspect matches to sources in this draft” is a different task from “I want to understand why a passage was flagged as AI.” Specify the document language, file format and sources that matter to your work.

Create a short checklist for each candidate: what the output measures, what evidence it provides, what its documented limits are, what happens to an uploaded file, and the current total cost. Open the vendor's current documentation for those points rather than relying on a badge or an unexplained accuracy percentage.

Our linked comparison is editorial content, not a new experiment performed for this hub. We sell plagiarism and AI scans, so this page is not a neutral laboratory evaluation. No test corpus, independent accuracy ranking or measured winner is claimed here.

Keep the result and the decision separate

Suggested review scenario: a passage has an AI flag but you also have drafts and source notes. Keep those records and review the identified passage in context. Do not rewrite only to chase a lower score. Separately check the assignment's assistance and disclosure rules. A private check cannot give you institutional permission.

What the linked provider explanation says

PCO's provider explanation distinguishes AI-typical language from source similarity and warns that an AI indicator does not prove authorship or misconduct. Read the explanation and its linked provider documentation before drawing conclusions. This hub adds no new accuracy, coverage, turnaround or data-deletion promise.

Your next three steps

  1. Name the question: source matches, AI indicator or assignment permission.
  2. Check the documentation and output limitations for that question.
  3. Use the result alongside sources, drafts and the actual assessment rules.

Read detection guide

AI-assisted editorial resource. Maintained by Plagiarism Checker Online, operated by Markus Nick. Resource links checked October 23, 2026. This is not an official institutional statement or a claim of individual human factchecking. Report a correction.

Start here

Find the right academic resource

Choose the question you need to resolve before selecting a guide or tool.

University policies

Find policy resources, a permission checklist and explicitly preliminary research.

Citation help

Choose an existing source guide or work through an attribution question.

Is it plagiarism?

Review paraphrasing, reused work and peer feedback with a practical checklist.

Detectors

Separate source-matching questions from AI indicators and assignment permission.