Updated for 2025

Best AI Humanizers & Bypass Tools

Make your AI text 100% undetectable. We tested these tools against Originality.ai, Turnitin, and GPTZero.

RankTool NameBest ForAvg CostAction
#1 Undetectable.aiPassing Turnitin$9.99/moVisit Undetectable
#2 StealthWriterFree Option Available$20/moVisit StealthWriter
#3 Hix.ai BypassSEO Writers$15/moVisit Hix.ai
#4 BypassGPTAcademic Tone$12/moVisit BypassGPT
#5 PhraslyBudget Friendly$10/moVisit Phrasly

Tool Reviews

1. Undetectable.ai

This is the only tool we tested that consistently passed Turnitin's latest update. It rewrites text at a deeper structural level, changing syntax without losing meaning.

💡 Top Alternative: If you need a free option for less critical work, check StealthWriter.
Check for Free

2. StealthWriter

StealthWriter has a very generous free model. It offers multiple "versions" of the rewritten text so you can pick the one that sounds most human.

💡 Top Alternative: For 100% academic safety, upgrade to Undetectable.ai.
Try StealthWriter

3. Hix.ai Bypass

Hix is designed for web content. It removes the "AI watermarks" that Google looks for, helping your articles rank higher.

💡 Top Alternative: BypassGPT handles academic tone better.
Visit Hix.ai

4. BypassGPT

This tool excels at maintaining an "academic tone." While other tools make the text sound too casual, BypassGPT keeps the formal vocabulary.

💡 Top Alternative: Hix.ai is better for SEO/Bloggers.
Visit BypassGPT

5. Phrasly

Phrasly is simple and cheap. It gets the job done for simple rewriting tasks.

💡 Top Alternative: StealthWriter has a better free plan.
Visit Phrasly

Undetectable vs StealthWriter

Undetectable.ai is the premium choice for serious academic or SEO work. StealthWriter is the best option if you need a free tool for casual emails.

Winner: Undetectable (Safety)

Writing a video script?

Once you have humanized your script, turn it into a viral video automatically.

See Video Tools

Understanding AI Text Humanizers

How do AI Detectors work?

Detectors like Turnitin look for "Perplexity" (complexity) and "Burstiness" (sentence variation). AI writing is uniform. Humanizers break these patterns.

Is it plagiarism?

Technically, plagiarism is stealing ideas. Rewriting AI text is a grey area, but many institutions consider it "Academic Dishonesty." Use responsibly.

Will Google penalize it?

Google penalizes unhelpful, spammy content. Humanized content reads more naturally, improving engagement and rankings.

Does it keep meaning?

Most premium tools do. Cheaper ones might swap words incorrectly. Always proofread.