Digital content authenticity suite
Certentis brings AI detection, plagiarism checking, and controlled rewriting together in one workspace. Review language patterns, trace highlighted source matches, and compare original and rewritten drafts across supported languages.
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Try each Certentis tool once without an account. No demo values—you get a real result.
Protected processingAbuse prevention using a necessary device cookie and a pseudonymized network signal. Your text never ends up in advertising or analytics.
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Sentence signals and classification
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Text integrity in one workspace
Certentis combines three precise text tools: more natural phrasing, transparent AI analysis, and clear plagiarism reports. You keep the original, result, and supporting evidence in view.
AI Detector
An AI detector’s probabilities describe the pattern of the complete text. They are not percentages of individual sentences and do not prove authorship.
Plagiarism checker
A match is a signal to review, not proof of plagiarism. Compare the passage with the original source to decide whether it is correctly quoted, properly paraphrased, common knowledge, or problematic.
Humanizer
For everyday writing, work, editorial tasks, and study—with careful attention to academic terminology and quotations. This is not a translation, and no AI detector score is guaranteed.
Three tools, one clear workflow
Use each tool on its own or work through them step by step. Certentis separates revision from analysis so results remain understandable and controllable.
Make existing AI-generated text sound more natural and fluid. The input language is detected automatically; meaning, technical terms, and quotations are carefully protected.
Scan texts independently of Humanizer. See the class probabilities for Human, Mixed, and AI, along with notable passages in context.
Check pasted text or documents against accessible sources. The report shows overlaps, matches, and related sources in a dedicated workspace.
3 steps
01
Paste text into any tool. Document uploads are available in the Plagiarism Checker.
02
Review AI probability signals, check highlighted source matches, or rewrite draft text with the Humanizer. Each tool works independently.
03
Examine Human, Mixed, and AI probabilities, highlighted source links, or original-to-rewritten comparisons to guide your next editing decision.
01
Certentis’s AI detector shows separate Human, Mixed, and AI probabilities, with sentence-level signals to support informed review.
02
The plagiarism checker highlights matching text and links it to original sources for individual review.
03
The Humanizer rewrites AI-generated text in the same language while keeping the original draft available for comparison.
04
Reports, sentence-level signals, and source links add context—never a single automated verdict.
Control instead of a black box
A single score cannot explain a text. That is why Certentis shows intermediate results, differences, and sources in a way you can assess yourself.
When humanizing, compare the original and revised text instead of having to accept an opaque response.
AI detection is presented as a statistical classification, not proof of authorship or quality.
Plagiarism matches remain linked to specific passages and accessible sources.
Open evidence
Certentis separates results, test protocol, and product comparison so it remains clear what was measured and what the test cannot establish.
Humanizer comparison · 10 identical cases
This preview shows overall quality. Every metric, test rule, and limitation remains available in the full provider comparison.
85.4
Overall quality · Certentis
Quality scale 40–100 · truncated axis
Internal benchmark · Version 2026-07-28
Compare all seven providers in detail| Humanizer | Benchmark published | Quality, semantics, language, length, citations, and external AI classification were checked in one run. |
|---|---|---|
| AI detector | Output documented | Certentis shows document probabilities and sentence signals. We do not claim an independent proprietary accuracy benchmark. |
| Plagiarism check | Report structure documented | Matches, sources, and overlap are shown transparently. Complete coverage of the web is not promised. |
Certentis detects the input language automatically. AI analysis, plagiarism checks, and same-language rewriting stay aligned with the source text, supporting English, German, and multilingual workflows without automatically translating content.
40Languages
Automatic language detection is active
Certentis fits seamlessly into your review, editing, and publishing workflow
Certentis connects your document, detailed analysis, and history report. Compare drafts, review class probabilities, and evaluate web source matches instead of relying on a single score.
Certentis brings together AI detection, plagiarism checking, and controlled rewriting for workflows where content origins, source attribution, and revisions matter. Results are signals for review—not proof.
Use AI probability and sentence-level signals as an initial review, verify highlighted source matches, and support informed discussions with students.
Review academic drafts, examine source matches, and check potential overlap before submitting your work.
Review AI writing signals, verify source matches, and compare revisions before publishing.
Review internal documents and vendor copy using transparent signals rather than relying on a single binary score.
Analyze client drafts, humanize AI text for a more natural flow, and compare the revised version with the original.
Analyze and refine text in its original language, helping you review content without introducing translation changes.
Find clear answers about AI detection, plagiarism checking, Humanizer, language support, and how to interpret results responsibly.
Certentis is a digital content authenticity workspace with three separate tools: an AI detector, a plagiarism checker, and a Humanizer. Review AI-writing patterns, check highlighted source matches, or compare an original draft with a controlled rewrite. Each tool produces distinct results for review.
