# Copyleaks vs Dechecker

Copyleaks records 2,402,494 monthly visits with -14.1% month-over-month growth and Paid, Contact for Pricing pricing. Dechecker records 111,347 monthly visits with +4.2% growth and Freemium pricing.

| Metric | [Copyleaks](https://openaitools.app/tool/copyleaks) | [Dechecker](https://openaitools.app/tool/dechecker) |
| :--- | :--- | :--- |
| Website URL | https://copyleaks.com | https://dechecker.ai |
| Categories | AI Content Detector, AI Detector, AI Writing Assistants, Large Language Models (LLMs) | AI Checker, AI Checker Essay, AI Content Detector, AI Detector |
| Pricing Model | Paid, Contact for Pricing | Freemium |
| Monthly Visits | 2,402,494 | 111,347 |
| MoM Growth Rate | -14.1% | +4.2% |
| Primary Market | United States | United States |
| Direct Visits | 758,498 | 26,472 |
| Review Score | 4.4 | 3.8 |
| Saved Count | 8 | 1 |
| 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)

## Dechecker

Dechecker centers on a paste-and-check workflow: you drop in up to roughly 1,000 words, or upload a document, and the detector returns an overall AI probability plus a sentence-level breakdown showing which passages triggered the model. Alongside the core check you can stack optional passes such as a plagiarism scan, a grammar pass and a fact-check, and the platform also exposes sibling tools for AI code detection, AI image detection, transcription, summarization and essay writing.

Its stated positioning is accuracy with few false positives, achieved by scoring sentence structure, phrasing rhythm and transitions rather than looking for fixed keyword lists. When something is flagged, the tool explains why that sentence reads as machine-generated and offers one-click rewriting so writers can smooth the pattern out instead of rewriting from scratch. Bulk document upload, downloadable reports and a saved history are provided for people checking more than one file.

Accessibility is the main selling point: the checker is free, needs no account for a basic run, and shows a "100 free credits" offer alongside paid options for heavier usage. Text is described as processed without being stored, which matters for students and professionals checking unpublished coursework or client material. The site is translated into several languages and claims more than a million users.

**Pricing & Plans:** Dechecker advertises a free tier with no registration required for basic AI checks, and the site surfaces a "claim your 100 credits" offer for signed-in users. Beyond that, plan details and paid tiers vary, so check the pricing page for current limits and per-word or per-credit bundles.

- **Sentence-level AI detection:** The checker returns an overall AI probability plus a per-sentence breakdown, so you can see exactly which lines read as machine-written instead of guessing from a single number.
- **Built-in humanizing rewrites:** Flagged sentences come with an explanation of what triggered the flag and one-click rewrite suggestions that reduce tell-tale AI patterns while keeping your meaning.
- **Add-on verification passes:** Optional plagiarism, grammar and fact-check modules can be layered onto the same text, turning a single submission into a broader originality and quality review.
- **Document upload and bulk scanning:** Paste text directly or upload files, and scan multiple documents in one pass when you are reviewing a stack of papers or drafts.
- **Report history and downloads:** Detection results are saved to a library and can be exported, which helps when you need a record of checks over time or proof of a review.
- **Extra detectors for code and images:** Separate tools detect AI-written code and AI-generated images, covering project types beyond plain essays and articles.

**Strengths:** Core AI check is free and requires no signup for a quick run; Sentence-level explanations make results actionable rather than just a score; Extra plagiarism, grammar and fact-check modules cover more ground in one place; Document upload, bulk scanning and saved reports suit multi-file workflows

**Limitations:** The free allowance is credit and word limited, so heavy use runs into paid tiers; AI detectors in general can still misfire on heavily edited or non-native human writing; Detection accuracy depends on language and text length, so very short passages are less reliable

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

## Frequently Asked Questions

### How do Copyleaks and Dechecker compare in monthly traffic?

Copyleaks has 2,402,494 monthly visits, while Dechecker has 111,347. 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%; Dechecker has +4.2%.

### How does pricing compare?

Copyleaks: Paid, Contact for Pricing. Paid, Contact for Pricing Dechecker: Freemium. Dechecker advertises a free tier with no registration required for basic AI checks, and the site surfaces a "claim your 100 credits" offer for signed-in users. Beyond that, plan details and paid tiers vary, so check the pricing page for current limits and per-word or per-credit bundles.

## 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 | AI content detection and a full writing toolkit in one place | [.md](https://openaitools.app/tool/zerogpt.md) |
| 2 | [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | +32.5% | Freemium, Paid | AI detection and writing verification built for schools and editors | [.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 | Detect, humanize and verify AI content in one place | [.md](https://openaitools.app/tool/undetectable-ai.md) |
| 5 | [StealthWriter](https://openaitools.app/tool/stealthwriter) | 2,887,114 | +15.5% | Freemium | Humanize AI text and check how human it reads | [.md](https://openaitools.app/tool/stealthwriter.md) |
| 6 | [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | +2.8% | Paid | AI detector, plagiarism and content-quality checks in one scan | [.md](https://openaitools.app/tool/originality.md) |
| 7 | [Decopy AI](https://openaitools.app/tool/decopy-ai) | 1,256,528 | -11% | Free | One workspace to write, check and summarize | [.md](https://openaitools.app/tool/decopy-ai.md) |
| 8 | [Isgen AI Detector](https://openaitools.app/tool/isgen-ai) | 901,917 | +5.8% | Freemium | Multilingual AI detector with sentence-level insight | [.md](https://openaitools.app/tool/isgen-ai.md) |
| 9 | [GPTinf](https://openaitools.app/tool/gptinf-com) | 674,246 | +25.8% | Freemium, Free Trial, Paid | Humanize AI text and detect it — one clean, all-in-one writing suite | [.md](https://openaitools.app/tool/gptinf-com.md) |
| 10 | [Winston AI](https://openaitools.app/tool/winston-ai) | 604,454 | +5.4% | Freemium, Free Trial | Provides reliable multi-modal content scanning, but offers fewer enterprise-grade integrations than Copyleaks. | [.md](https://openaitools.app/tool/winston-ai.md) |

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Source: https://openaitools.app/compare/copyleaks-vs-dechecker

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