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Content Authenticity Detection · Copywriting

Humanize AI

Humanize AI rewrites machine-generated drafts into natural English prose, bundling an AI detector, plagiarism and grammar checkers, a paraphraser, an AI writer and SEO/AEO article tools into a single browser workspace with a permanent free tier.

Active GDPR compliant Free plan Freemium API available Verified by Guidaio
Overview

What is Humanize AI?

Humanize AI is a browser-based writing suite built around one core task: taking text a language model produced and rewriting it so that it reads as though a person wrote it. The humaniser does not present itself as a paraphraser. Rather than swapping words, it reworks tone, sentence structure and rhythm, and shows the original and the rewritten version side by side so the writer can see exactly what changed before copying anything out.

Seven further tools sit in the same interface. An AI detector checks text against ChatGPT, Claude, Gemini, GPT-3.5 and GPT-4 output, with a claimed 99.49% precision. A plagiarism checker scans against web pages, articles and academic work, accepts DOC, PDF and TXT files, and returns a downloadable PDF report with matched sources. A grammar checker runs without a login. A paraphraser offers eight named modes, from Fluency and Academic to Expand and Shorten. An AI writer drafts essays, articles and research papers with automatic citations. Two marketing tools complete the set: an AI Article Agent that weighs more than twenty-five ranking factors, from entity coverage to People Also Ask clusters, and an AI Content Optimizer that compares a draft against the top five search results and returns an actionable plan.

That breadth reflects an ambition stated on the About page: the company describes itself as a humanisation, content creation and AI search visibility platform, betting that the contest is shifting from ranking on Google to being cited by ChatGPT, Perplexity and Gemini. Five stages are mapped out; two are live, two are announced, one is on the roadmap. Founder and chief executive Steve Palomares brings roughly thirty years of Silicon Valley software experience, and his company Paloma Digital LLC is the parent.

The guardrails are unusually concrete for this category. A factual integrity gate blocks unsourced claims in regulated fields, every piece runs through the plagiarism check, and an approval queue puts a human in the loop with no setting to remove them. The tools work in English only, in a browser or through an API on paid plans; there is no mobile app.

What it does

  • Rewrite AI-generated text into natural, human-sounding English
  • Check whether a text reads as AI-written, across ChatGPT, Claude and Gemini output
  • Scan a document for plagiarism and download a sourced PDF report
  • Paraphrase a passage in eight modes, from Academic to Shorten, with adjustable synonym strength
  • Draft and edit essays, articles and research papers with automatic citations
  • Generate an SEO and AEO optimised article from live search data
  • Audit an existing article against the top five ranking pages and apply the fixes in one click
Audience

When to use Humanize AI / When not to

A quick filter to help you decide if Humanize AI is the right fit.

When to use Humanize AI

  • Content marketers and SEO professionals producing blog posts, landing pages and web copy at volume
  • Freelance writers and ghostwriters polishing AI-assisted drafts before they reach a client
  • Agency owners and content teams keeping voice consistent across several writers and accounts
  • Business owners and entrepreneurs writing marketing material without a dedicated writing team
  • Non-native English speakers improving the fluency and readability of professional writing

When not to use Humanize AI

  • Students hoping to pass AI-assisted work off as original where their institution forbids it, which the acceptable use policy explicitly bans
  • Anyone needing to work in a language other than English, the only language the tools currently handle
  • Teams that require a signed data processing agreement, an Article 27 EU representative or a declared hosting country
  • Users who want a mobile app, a browser extension or connectors into their existing content stack
  • Organisations that need audited security credentials such as SOC 2 or ISO 27001 before adopting a vendor
Get started

How to use Humanize AI

A typical end-to-end flow, from setup to results.

  1. Open humanizeai.com and paste a short AI-generated passage straight into the input box, no account needed
  2. Click Humanize and wait a few seconds for the rewritten version
  3. Compare the original and the humanised text side by side, then copy the result
  4. Create a free account to save your work and unlock the full monthly quota
  5. Switch to the AI Detector, paste or upload a document, and click Detect for an instant verdict
  6. Run the same text through the Plagiarism Checker, excluding any trusted domains, and download the PDF report
  7. Use the Paraphrase Tool to rework a passage in one of eight modes, adjusting how far the vocabulary shifts
  8. Move to the AI Writer to draft a full document from a topic, choosing style, tone and length, then edit inline
  9. Feed an existing article or URL to the AI Content Optimizer with a target keyword and country, and apply its plan
  10. For programmatic use, open My Account, create an API key under API Keys, and call the documented POST endpoint
Quick read

Pros & Cons

Pros

  • Eight tools in one subscription, where competitors usually sell them separately
  • Permanent free plan with Ultra mode included and no credit card required
  • API access from the first paid tier at 14 USD per month, not reserved for enterprise plans
  • Short texts can be processed without creating an account at all
  • Three dated public policy pages set out the ethical position, and the safeguards are described as product mechanisms rather than intentions
  • Explicit commitment that customer content is never used to train models for other customers, with deletion honoured on request
  • Full contact details published: postal address, email, telephone and support hours

Cons

  • English only, with no other processing language available
  • No data processing agreement, no Article 27 EU representative and no named data protection officer
  • No hosting country or region declared, and no security certification such as SOC 2 or ISO 27001
  • No mobile app, no browser extension and no documented third-party integrations
  • User data is contractually treated as a transferable asset, with advance irrevocable consent to its sale in a change of control
  • Subscriptions are non-refundable in principle, with narrow three-day and seven-day discretionary windows
  • Half the platform advertised on the About page is not yet delivered, and the detector accuracy figures are vendor claims with no published method
Pricing

Pricing & Plans

A permanent free plan is available at no cost and without a credit card, capped at 300 words per pass and 1,500 words per month. The lowest paid entry point is the Essential plan at 14.00 USD per month, which adds API access and substantially higher quotas across every tool.

Free - 0 USD per month
  • 1
  • 500 humaniser words per month
  • 300 words per pass
  • 5
  • 000 AI Writer words
  • 10
  • 000 AI Detector words
  • 1
Standard - 24 USD per month, marked Most popular
  • 75
  • 000 humaniser words per month
  • API access
  • 200
  • 000 AI Writer words
  • 300
  • 000 AI Detector words
  • 50
Pro - 59 USD per month, listed as Premium in the comparison table
  • 225
  • 000 humaniser words per month
  • API access
  • 600
  • 000 AI Writer words
  • 900
  • 000 AI Detector words
  • 100
Plan 5
  • A second SEO/GEO range is offered behind a tab on the pricing page
  • its prices are rendered in JavaScript and could not be read
Plan 6
  • Lifetime deals distributed through AppSumo
  • refundable only through that platform
Special offers — Annual billing advertised as saving 50% against the monthly rate · Money-back guarantee announced at the top of the pricing page · Lifetime deals distributed through AppSumo, with refunds handled by that platform rather than the publisher · Permanent free plan including Ultra mode, with no credit card required
Prices and plans listed above may evolve. Always check the official pricing page before subscribing.
Trust & Privacy

Data, GDPR & hosting

A consolidated view of how Humanize AI handles your data.

GDPR overview

The privacy policy, effective 3 June 2026, carries a dedicated European Residents (GDPR) section. It names the lawful bases relied upon, contract performance and legitimate interests, and grants the full set of rights: access, rectification, updating, erasure, objection, restriction and portability. Requests go to hello@humanizeai.com, with a stated response time of 30 days. Transfers outside Europe, notably to the United States, are announced explicitly, and the publisher commits to notifying users and authorities of a breach affecting their rights. California and Texas privacy regimes are covered separately. Three gaps remain: no data processing agreement is published or offered, no Article 27 EU representative is designated, and no data protection officer is named. The terms place exclusive jurisdiction in Collin County, Texas.

Who owns the data?

The service is operated by Paloma Digital LLC. Customer content and transcripts belong to the customer: the publisher states they are never used to train models serving other customers, are never shared across accounts, and that Brand Voice profiles stay with the account that created them. Deletion of content and transcripts is honoured on request. One clause deserves attention: both the privacy policy and the terms classify all user data as a transferable business asset, and users give advance, irrevocable consent to it being sold or assigned to an acquirer in a merger or change of control, with no further consent and no separate notice.

Reuse rights

Nothing in the terms restricts what a user does with the text the tools return: the humanised, paraphrased or generated output is theirs to publish, submit or resell as their own work, and the publisher claims no rights over it. Two limits sit on that freedom, and they come from the acceptable use policy rather than from copyright. First, the output must not be passed off as original work where an institution, regulator or platform explicitly requires disclosure of AI assistance. Second, it must not be used to impersonate real people, fabricate quotes, reviews or sources, or mislead readers about material facts. Feedback and suggestions sent to the publisher are treated differently: under the terms, it may edit, publish, distribute and reuse them freely, without compensation or confidentiality.

Data retention & training

Retention summary
Personal data is kept for as long as the account is active or as long as it takes to provide the service, and longer where the publisher must meet a legal obligation, settle a dispute or enforce its agreements. No fixed retention period is given anywhere. If you ask for deletion, your data is erased or anonymised within a reasonable timeframe, except where the law requires it to be kept or where a legitimate interest such as fraud prevention applies. Content and transcripts submitted to the tools are covered separately: the publisher says they are not stored beyond processing, and honours deletion requests. One caveat: in a merger or change of control, personal data may pass to the acquirer and be retained by them.
Trains on customer data
No
Subprocessors disclosed
Yes
GDPR contact

Hosting summary

No hosting country or region is declared anywhere on the site, which is the single largest gap in an otherwise well-documented set of policies. What can be established is indirect. The privacy policy names Supabase for database and authentication services and Vercel for application hosting, and states that user information may be transferred outside Europe, notably to the United States. A DNS lookup resolves the domain to 216.150.1.65, geolocated in the United States on Amazon's AS16509, but the node is flagged as anycast: that address describes a content delivery edge, not where data actually rests. No hosting certification is displayed, and no data processing agreement is published that might specify storage locations or sub-processor commitments. In practice, a European buyer should assume United States processing and ask the publisher directly for anything more precise.

Watch-outs

Things to keep in mind

Risks and trade-offs to weigh before adopting Humanize AI.

  • Leaning on a humaniser to clear an AI detector can become a substitute for actually thinking a piece through; the writing muscle it relieves is the one that atrophies
  • The acceptable use policy bans academic circumvention outright, including bypassing Turnitin or GPTZero, and a breach ends the account without a refund
  • User data is contractually a transferable asset: you consent in advance, irrevocably and without further notice, to it passing to an acquirer in a merger or change of control
  • Refunds are discretionary and the windows are narrow, three days monthly and seven days annually, while lifetime and AppSumo purchases fall outside the publisher's remit entirely
  • Opening a chargeback without contacting support first can lead to permanent account closure
  • No hosting country is declared and transfers to the United States are announced, with jurisdiction fixed in Texas; that combination is worth weighing before putting sensitive material through the tools
  • The 99.49% detector accuracy and the scores assigned to rival tools are vendor figures with no published method, and detector verdicts should never be treated as proof of authorship
Setup

Setup & Integrations

Technical difficulty

Essentially none for ordinary use. Everything runs in a browser, with nothing to install and nothing to connect. Short texts can be processed without even creating an account, and the free plan needs no credit card; signing up simply saves your work and raises the quotas. Only the API route calls for technical skill: you create a key from My Account and call a documented POST endpoint, which any developer will manage in minutes. There are no integrations or connectors to configure.

Deployment

Web appAPI

Supported languages

English
Company

Behind Humanize AI

Company name
Paloma Digital LLC
Founded
05/08/2018
Country of origin
🇺🇸 United States
Headquarters
30 N Gould St, Ste 66521, Sheridan, Wyoming 82801
UBO
Steve Palomares
UBO country
🇺🇸 United States
Domain registrar country
🇺🇸 United States
Legal contact
Support contact

Social

Official links

Resources

All the official URLs gathered for verification and reference.

Compare

Alternatives

Tools that compete with or complement Humanize AI.

U Undetectable AIG GPTZeroO Originality.aiC CopyleaksC Content at Scale
FAQ

Frequently asked questions

What does Humanize AI actually do?
It rewrites text produced by a language model so that it reads as though a person wrote it, reworking tone, structure and rhythm rather than merely swapping synonyms. Seven further tools sit alongside it: an AI detector, a plagiarism checker, a grammar checker, a paraphraser, an AI writer and two SEO/AEO tools.
Is there a free version, and what does it cover?
Yes, and it is a permanent free plan rather than a time-limited trial. It allows 300 words per pass and 1,500 humaniser words per month, includes Ultra mode, and requires no credit card. Short texts can even be processed without creating an account.
How much do the paid plans cost?
Essential is 14 USD per month, Standard 24 USD, and Pro 59 USD. Every paid tier includes API access. An annual toggle advertises a 50% saving, and a second SEO/GEO range exists whose prices were not readable at the time of review.
Which languages does it support?
English only. The published FAQ states plainly that the tool works in English at present, so writers needing any other language will have to look elsewhere.
Is my content used to train the models?
No. The publisher states that customer content and transcripts are never used to train models serving other customers, that data is never shared across accounts, and that deletion of content and transcripts is honoured on request.
Can it be used for academic work?
For clarity and readability, yes. But the acceptable use policy explicitly forbids submitting AI-assisted work as original where an institution prohibits it, and forbids circumventing detection systems such as Turnitin or GPTZero. Breaching this ends the account without a refund.
Is there an API?
Yes, included on every paid plan. You create a key from My Account under API Keys, then call the documented POST endpoint. Documentation lives on a separate docs subdomain.
What are the refund terms?
Subscriptions are non-refundable in principle. Requests are considered case by case within three days of a monthly purchase or seven days of an annual one, at the publisher's discretion. Lifetime and AppSumo purchases must be taken up with the originating platform.
Who is behind the service?
Paloma Digital LLC, at 30 N Gould St, Ste 66521, Sheridan, Wyoming 82801. Founder and chief executive Steve Palomares describes roughly thirty years in Silicon Valley software, including roles at Okta, HashiCorp and Alteryx.
Is there a mobile app?
None was found during this review. The tools run in a browser, with an API as the only other route in.
Conclusion

Should you pick Humanize AI?

Humanize AI is a rare thing in its category: a humaniser that has stopped pretending to be only a humaniser. Eight tools share one subscription, the free plan is permanent rather than a countdown, and API access starts at the first paid tier instead of being held back for enterprise buyers. For a freelance writer, a small agency or a non-native English speaker polishing professional copy, the value for money is genuinely good.

What sets it apart is the seriousness of its published position. Three dated policy pages spell out where the company draws the line, and the safeguards are framed as mechanisms rather than promises: a factual integrity gate that blocks unsourced claims in regulated fields, a plagiarism check on every piece, and an approval queue that cannot be switched off. The commitment that customer content never trains models for other customers is stated plainly, and deletion is honoured on request.

The reservations are mostly legal and operational. There is no data processing agreement, no Article 27 representative and no named data protection officer, no declared hosting country and no security certification. Jurisdiction sits exclusively in Collin County, Texas. Most striking, both the terms and the privacy policy classify user data as a transferable business asset and take advance, irrevocable consent to its sale in a change of control, without further notice. A European team handling sensitive material should read those clauses before signing anything.

Two practical limits remain: the tools work in English alone, and half the platform advertised on the About page has yet to ship. Treat the 99.49% detector accuracy as a vendor claim. Within those bounds, this is a capable and honestly documented suite.