# Copyleaks vs HumanizeAI.pro

Copyleaks records 2,402,494 monthly visits with -14.1% month-over-month growth and Paid, Contact for Pricing pricing. HumanizeAI.pro records 9,652,312 monthly visits with +26% growth and Free pricing.

| Metric | [Copyleaks](https://openaitools.app/tool/copyleaks) | [HumanizeAI.pro](https://openaitools.app/tool/humanizeai-pro) |
| :--- | :--- | :--- |
| Website URL | https://copyleaks.com | https://www.humanizeai.pro |
| Categories | AI Content Detector, AI Detector, AI Writing Assistants, Large Language Models (LLMs) | Humanizer AI, Bypass AI, AI Paraphraser, AI Rewriter |
| Pricing Model | Paid, Contact for Pricing | Free |
| Monthly Visits | 2,402,494 | 9,652,312 |
| MoM Growth Rate | -14.1% | +26% |
| Primary Market | United States | United States |
| Direct Visits | 758,498 | 3,853,676 |
| Review Score | 4.4 | 3.4 |
| Saved Count | 8 | 0 |
| Supported Platforms | Website | Website |

## Copyleaks

Copyleaks has focused on content integrity since 2015, starting with plagiarism detection and expanding into AI detection and governance as generative models spread. Its core AI Detector analyzes text across more than 30 languages and can identify output from leading models such as ChatGPT, Gemini, Claude and DeepSeek, while its Plagiarism Checker searches a database covering 60 trillion websites, 16,000+ open-access journals and millions of internal documents to catch copying, paraphrasing and character manipulation. A unified multi-modal layer adds detection for video, audio and images, aiming to replace fragmented single-purpose tools.

For organizations, Copyleaks goes beyond individual checks with a scalable API that plugs content analysis into existing workflows, LMS platforms and publishing pipelines. Its compliance and governance use cases map to academic integrity, generative AI governance, code governance, IP and copyright protection, and detection of unauthorized LLM usage. Reporting dashboards, integrations and role-based controls help teams act on results at scale.

Founded as a plagiarism tool, Copyleaks now serves both individuals and large institutions. Free web tools give students and writers quick access to the AI Detector and Plagiarism Checker, while paid enterprise plans provide higher volumes, richer reporting and dedicated support. The company reports 100+ countries, 500+ enterprise and education customers and tens of millions of monthly scans.

**Pricing & Plans:** Paid, Contact for Pricing

- **AI content detection:** Identifies AI-generated text across 30+ languages and leading LLMs, with reported accuracy above 99% on internal English test sets.
- **Plagiarism checking:** Searches 60 trillion websites, 16,000+ open-access journals and internal repositories to catch paraphrasing and hidden copying.
- **Multi-modal detection:** Extends detection to AI-generated video, audio and images so teams can verify content beyond text alone.
- **API and integrations:** A scalable API and workflow integrations automate content analysis inside LMS platforms, publishing tools and enterprise systems.
- **Governance and compliance:** Supports academic integrity, GenAI governance, code governance and IP protection programs with reporting and controls.

**Strengths:** Combines AI detection and plagiarism checking in one platform; Broad language coverage and a very large comparison database; Scalable API and workflow integrations for enterprises; Free tools available for individuals alongside paid plans

**Limitations:** Pricing is quote-based and aimed mainly at organizations; AI-detection results can produce false positives on human writing; Full feature set requires an enterprise contract

[Profile (Markdown)](https://openaitools.app/tool/copyleaks.md)

## HumanizeAI.pro

HumanizeAI.pro is a standalone web utility built around one job: taking text that reads as machine-made and reworking it until it sounds like ordinary human writing. There is no account, no install, and no paywall - you paste a block of text into the on-page box, confirm the captcha, and receive a rewritten version that aims to preserve the original meaning and search keywords while smoothing out the stiff, repetitive phrasing that AI detectors latch onto.

The tool positions itself as usable by staff writers, marketers, students, and anyone else who drafts with an AI assistant and then wants a more natural final pass. Beyond the humanizer itself, the page bundles a wider set of free writing helpers, including paraphrasing, plagiarism and grammar checking, and detector utilities. The site supports several input languages and works in any modern browser on desktop or mobile.

It is worth being clear about how this kind of tool fits into a workflow: the output is still generated text, and detection scores fluctuate as the detectors themselves change. HumanizeAI.pro is best treated as an editing aid for tone and readability rather than a guarantee, especially where a publisher, school, or client has its own rules about AI-assisted writing.

**Pricing & Plans:** Free to use with no account required. The site advertises unlimited, cost-free access with no hidden fees.

- **One-click humanizing:** Paste AI-generated text, complete the captcha, and get a reworded, more natural-sounding version back in a single step.
- **No account needed:** You can use the humanizer directly in the browser without registering, signing in, or installing anything.
- **Keyword-preserving rewrite:** The rewrite is designed to retain the original meaning and SEO terms so you do not lose search relevance.
- **Extra writing utilities:** Alongside the humanizer, the site offers paraphrasing, plagiarism checking, grammar checking, and AI detector tools.
- **Multilingual input:** Supports text in English, Chinese, Japanese, Russian, Arabic, and other languages, and works on desktop and mobile browsers.

**Strengths:** Completely free with no signup or credit card; Runs entirely in the browser on desktop and mobile; Preserves keywords and original meaning during the rewrite; Bundles related writing and detection tools on the same site

**Limitations:** AI detector results are not guaranteed and shift over time; Captcha step adds friction to each run; No account means no saved history or team features

[Profile (Markdown)](https://openaitools.app/tool/humanizeai-pro.md)

## Frequently Asked Questions

### How do Copyleaks and HumanizeAI.pro compare in monthly traffic?

Copyleaks has 2,402,494 monthly visits, while HumanizeAI.pro has 9,652,312. Traffic estimates describe audience size, not product quality.

### How do their growth rates compare?

Copyleaks has a month-over-month growth rate of -14.1%; HumanizeAI.pro has +26%.

### How does pricing compare?

Copyleaks: Paid, Contact for Pricing. Paid, Contact for Pricing HumanizeAI.pro: Free. Free to use with no account required. The site advertises unlimited, cost-free access with no hidden fees.

## Alternatives

| # | Tool Name | Monthly Visits | MoM Growth Rate | Pricing Model | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | +19.7% | Freemium, Paid | Widely used for quick AI text detection, but less comprehensive for enterprise plagiarism and code auditing. | [.md](https://openaitools.app/tool/zerogpt.md) |
| 2 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | Stronger focus on educational integrity reporting, though it lacks Copyleaks' deep enterprise compliance workflows. | [.md](https://openaitools.app/tool/gptzero-me.md) |
| 3 | [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | +14.6% | Freemium | Includes expert human proofreading alongside plagiarism checks, but lacks native automated AI content detection. | [.md](https://openaitools.app/tool/scribbr.md) |
| 4 | [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | +17.5% | Freemium | Provides more robust detection scoring and rewriting styles, but higher subscription pricing than HumanizeAI.pro. | [.md](https://openaitools.app/tool/undetectable-ai.md) |
| 5 | [StealthWriter](https://openaitools.app/tool/stealthwriter) | 2,887,114 | +15.5% | Freemium | Offers multi-engine humanization models and output variations, but interface can feel cluttered compared to HumanizeAI.pro. | [.md](https://openaitools.app/tool/stealthwriter.md) |
| 6 | [AI Humanize](https://openaitools.app/tool/ai-humanize) | 2,152,089 | +8.1% | Freemium, Paid | Delivers straightforward one-click text paraphrasing, but lacks advanced styling controls or API access. | [.md](https://openaitools.app/tool/ai-humanize.md) |
| 7 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | Specializes in rigorous AI content detection and plagiarism auditing rather than rewriting text itself. | [.md](https://openaitools.app/tool/originality.md) |
| 8 | [Phrasly](https://openaitools.app/tool/phrasly-ai) | 1,209,985 | +17.9% | Freemium, Subscription | Includes built-in grammar checks and academic citation helpers, but restricted free usage limits. | [.md](https://openaitools.app/tool/phrasly-ai.md) |
| 9 | [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | +5.8% | Freemium | Features detailed sentence-level analysis for multilingual text, but lacks Copyleaks' broad enterprise feature set. | [.md](https://openaitools.app/tool/isgen-ai.md) |
| 10 | [GPTinf](https://openaitools.app/tool/gptinf-com) | 674,246 | +25.8% | Freemium, Free Trial, Paid | Combines text humanization with thorough grammar and plagiarism analysis, but slightly more complex workflow. | [.md](https://openaitools.app/tool/gptinf-com.md) |

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Source: https://openaitools.app/compare/copyleaks-vs-humanizeai-pro

More Markdown: [Categories](https://openaitools.app/categories.md) · [Traffic rankings](https://openaitools.app/rankings.md) · [llms.txt](https://openaitools.app/llms.txt)