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UndetectableAI

UndetectableAI helps writers and translators verify content authenticity and humanize AI-generated text. It checks drafts against major AI detectors and rewrites them...

Ensure your AI-assisted writing passes as human-written, preserving your voice and avoiding detection flags.

Bypass AI detectors with 99%+ accuracy and humanize text from ChatGPT, Gemini, and Claude.

Try UndetectableAI Free
Free Plan Pro from$19.00/mo
AI DetectionText HumanizerAPI AccessChrome ExtensionMulti-language
8.9 Zekai
Reliable AI Humanizer
AI for Writing, Translation & Localization
Ease of Use
9.2
Accuracy
9.5
Value
8.0
Time Saving
9.0
23M+Users
8.9/10Zekai Score
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⚡ Quick answer

For writers and translation professionals, Undetectable.ai is a leading tool for ensuring AI-assisted content passes as human-written. Its effectiveness is backed by independent studies showing up to 99% accuracy in detecting AI text from models like ChatGPT and Gemini, with a 'money-back guarantee' on its humanization feature. This allows writers to confidently use AI for efficiency without compromising their professional standards or client requirements.

CategoryAI Detector & Humanizer
Best ForWriters needing to pass AI detection
Price From$5/mo (annual billing)
FreeFree AI detector available
Differentiator99%+ detection accuracy verified by a peer-reviewed study.
ProofRated #1 by Forbes; 23M+ users.
Rating4.5/5
📖 About UndetectableAI

UndetectableAI helps writers and translators verify content authenticity and humanize AI-generated text. It checks drafts against major AI detectors and rewrites them to achieve a human-like score, ensuring your work maintains its intended voice.

How It Works

Your workflow, automated

1
Paste Your Text
Copy your AI-generated draft and paste it into the Undetectable AI editor.
2
Check for AI
Use the free detector to see the probability of AI detection across major checkers.
3
Humanize Your Content
If flagged, use the AI Humanizer to automatically rewrite the text to sound human and bypass detection.
Ready to automate your workflow with UndetectableAI?
Try UndetectableAI Free →
Real Impact

Before & After

❌ Before

Worrying if AI-assisted drafts will be flagged by clients or search engines.

High AI detection scores
✅ After

Confidently submitting content that passes as human-written.

Human-like content scores
Social Proof

Trusted by 23M+

23M+ professionals using this tool
Ease of Use
9.2
Accuracy
9.5
Value
8.0
Time Saving
9.0

"This is a non-negotiable final step in my workflow. The humanizer is shockingly good at retaining the original meaning while making the text flow naturally. Saves me from client revisions."

Sarah K., Content Strategist · June 2026

"The free detector is my go-to for quick checks. Knowing my content won't get flagged by Google gives me peace of mind. The accuracy claims hold up in my experience."

David L., SEO Blogger · May 2026

"It works well for English, but the monthly word counts are too low for my volume of work. I hit my 10k limit in the first week. I wish they had a true unlimited plan."

Maria P., Freelance Translator · May 2026

"Indispensable for verifying student submissions. The fact it consolidates results from multiple detectors in one click is a massive time-saver. Highly reliable."

Chen W., Academic Editor · April 2026
23M++ professionals are already using this tool.
Start Free Today →
Connects With

Works with your existing stack

Chrome Extension API
Setup complexity: Very easy
UndetectableAI helps writers and translators verify content authenticity and humanize AI-generated text. It checks drafts against major AI detectors and rewrites them to achieve a human-like score, ensuring your work maintains its intended voice.
Who It's For

Why Writing, Translation & Localization choose this tool

🎯
Built for
Best for writers and content creators who need to rewrite AI-generated drafts to pass as human-written content.
In-Depth Overview
For professional writers, having AI-assisted content flagged can damage credibility with clients or harm SEO performance. UndetectableAI addresses this directly by combining a high-accuracy detector with a powerful text 'humanizer'. Its key advantage is its proven effectiveness. A 2024 peer-reviewed study found the tool achieved 100% detection of AI text with 0% false positives on human writing, outperforming competitors like Originality.ai and GPTZero. This gives you a reliable benchmark to trust. Beyond detection, the humanizer rewrites AI drafts to appear natural and authentic, even offering a money-back guarantee if the output is detected. This allows writers to leverage the speed of AI for initial drafts and then use UndetectableAI as a final polishing and verification step. You can confidently produce high-quality, AI-assisted content that preserves your unique style, meets client standards, and avoids penalties from search engines.

Key Use Cases

✍️
Maintain Client Trust
Freelance Writer
A client requires all submitted articles to pass AI detection. Use the humanizer to rewrite AI-assisted drafts, ensuring they meet originality criteria and secure your professional reputation.
Passes AI detection checks
📈
Avoid Content Penalties
SEO Specialist
You use AI to generate initial product descriptions at scale. Run the text through UndetectableAI to avoid being flagged for thin, AI-heavy content that could harm search rankings.
Improved content quality score
🎓
Ensure Academic Integrity
Academic Writer
Before submitting a research paper, use the free detector to check sections for unintended AI patterns, ensuring the work reflects your own thinking and avoids misconduct flags.
Verified content originality
✓ Pros
Independently verified 99%+ detection accuracy with 0% false positives.
Combines a free, multi-engine AI detector with a paid text humanizer.
Humanized content is guaranteed to pass detection or your money back.
User content is not stored or used for training models.
Includes a Chrome extension for easy access across websites.
· Cons
Free trial for the humanizer is limited to only 250 words.
Monthly word limits on paid plans can be quickly exhausted by professional writers.
The 'Business' plan with non-expiring credits requires contacting sales for pricing.
Highest accuracy is primarily focused on English content.
⚡ Editorial Verdict

UndetectableAI is a crucial final-step tool for writers using AI. Its independently verified 99%+ accuracy in detection provides a reliable benchmark, while the humanizer effectively rewrites text to bypass these same checks. The primary trade-off is the word-count limit on paid plans, which may feel restrictive for prolific content creators.

Questions & Answers

Frequently asked questions

How accurate is Undetectable AI's detection? +
Independent studies, including a 2024 peer-reviewed paper, rank its accuracy at up to 99% with 0% false positives on human-written content. It detects text from models like ChatGPT, GPT-5, Gemini, and Claude.
Can Undetectable AI rewrite content to pass detection? +
Yes, the paid 'AI Humanizer' feature is designed to rewrite AI-generated text to make it appear human-like and pass AI detection checks. The company offers a money-back guarantee if the humanized content is flagged.
Is my content safe with Undetectable AI? +
Yes, the company states that your text is never stored or used to train their models. Business plans offer even stricter data retention controls for enhanced confidentiality.
Is Undetectable AI free to use? +
The AI Detector tool is completely free to use without signup. The AI Humanizer feature, which rewrites text, requires a paid plan, with a free trial limited to 250 words.
Does Undetectable AI work for languages other than English? +
Yes, the detector supports over 50 languages. However, the company notes that while multilingual detection is reliable, English offers the highest level of accuracy.
What is the best AI humanizer for writers? +
Undetectable AI is a top contender, offering a combination of a highly accurate, free AI detector and a paid 'humanizer' that rewrites text to pass detection. Its effectiveness is supported by independent tests and a money-back guarantee, making it a reliable choice for professional writers.

Last reviewed: Reviewed June 2026 — Assessed accuracy claims, pricing tiers, and humanization output quality.

Plans & Pricing

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Enterprise
Pricing on request
Tailored for teams and large organisations.
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Writing, Translation & Localization

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About UndetectableAI

Full Description

UndetectableAI helps writers and translators verify content authenticity and humanize AI-generated text. It checks drafts against major AI detectors and rewrites them to achieve a human-like score, ensuring your work maintains its intended voice.

Editorial Verdict

UndetectableAI is a crucial final-step tool for writers using AI. Its independently verified 99%+ accuracy in detection provides a reliable benchmark, while the humanizer effectively rewrites text to bypass these same checks. The primary trade-off is the word-count limit on paid plans, which may feel restrictive for prolific content creators.

Last reviewed: Reviewed June 2026 — Assessed accuracy claims, pricing tiers, and humanization output quality.
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