Rephrasy

Rephrasy is an AI text humanizer that rewrites AI-generated text and includes an AI detector. It names ChatGPT, Claude, Gemini, DeepSeek, and Grok as sources of text it can process, and identifies GPTZero, Copyleaks, Turnitin, and Originality.ai among the detectors for checking AI scores. Stated uses include academic writing, SEO and blog content, and social media and marketing. The service supports more than 50 languages, custom writing-style cloning, and Conversational, Paper, and Marketing presets. Its Chrome extension works in Google Docs, Gmail, LinkedIn, and other websites. Developer options include text humanization and detection APIs, an image humanizer API, and an MCP server for Claude, ChatGPT, Cursor, and Claude Code using a Rephrasy API key. Rephrasy is available on the web, Android, iOS, as an extension, and through an API. Plans include a free plan and free trial; paid plans start at $8.25/mo (annual). The terms do not guarantee that rewritten text will avoid AI detection.

Rephrasy combines text rewriting, detection, style options, and developer access. It offers a free plan and trial, but its terms warn that rewritten text may still be detected.

Rephrasy may suit writers who want rewriting, AI detection, or writing-style options for academic, SEO, blog, social media, or marketing work. Developers can also use its documented APIs and MCP integrations.

Rephrasy combines AI-text rewriting with detector checks, style controls, browser tools, and developer interfaces. It suits writers, marketers, students, and teams handling drafts in multiple languages, particularly those who need the same workflow in a browser and through an API. The main qualification is important: a rewrite is not promised to evade AI detection.

Overview

Rephrasy is built to turn text from ChatGPT, Claude, Gemini, DeepSeek, and Grok into more natural-sounding prose, while also checking AI-detection scores. More than 50 languages broaden its usefulness for multilingual publishing. Academic work, SEO and blog production, and social-media or marketing copy are the stated use cases, and a plagiarism checker adds a separate originality check.

The service is broader than a basic paraphraser, but that breadth matters most to people who will use its detector, integrations, or style tools. Anyone choosing it primarily to make AI-written work invisible should look elsewhere or revise expectations: its terms expressly disclaim any guarantee that humanized text will avoid detection.

Key features

Style control is a practical strength. Rephrasy offers Conversational, Paper, and Marketing presets, alongside custom writing-style cloning. That lets a team keep a recognizable voice while switching between a formal paper, a conversational message, and promotional copy. It is more useful for repeatable editorial work than for an occasional one-off rewrite.

Detector checks compare scores with GPTZero, Copyleaks, Turnitin, and Originality.ai. Seeing several detector perspectives can inform editing, but it does not turn the result into a pass/fail assurance. The Chrome extension puts humanizing and detection inside Google Docs, Gmail, LinkedIn, and other websites, reducing copy-and-paste between a draft and a separate dashboard.

Developers get text-humanization and detection APIs plus an image-humanizer API. The text API accepts up to 12,000 characters of plain text, or up to 200,000 characters of HTML or Markdown, so structured content can be handled in larger requests. Its MCP server connects with Claude, ChatGPT, Cursor, and Claude Code using a Rephrasy API key. Privacy terms say VPS providers process text and Firebase stores data; data is retained as long as necessary or legally required, deletion requests are accepted, and technical and organizational safeguards are stated. Support is offered by email and Crisp messaging.

Pricing

Growth costs $8.25 a month, billed 99 USD yearly. It includes 100 humanizations per month, up to 2,000 words per humanization, the Chrome Extension, one custom writing style, and one Extended Scan via support. This is the sensible entry plan for an individual with moderate monthly volume who does not need API access.

Business is $10 a month, billed 120 USD yearly. It doubles the allowance to 200 humanizations, keeps the 2,000-word cap, and adds the Humanizer API, three custom styles, and two Extended Scans, while retaining the extension. It fits small teams or developers who need automation but not the higher quotas of Professional.

Professional costs $18.33 a month, billed 220 USD yearly. It permits 400 monthly humanizations of up to 2,000 words, includes the Humanizer API, AI Detector and Detector API, the extension, 10 custom styles, and 10 Extended Scans. The extra quota and detector API justify it for production workflows; the annual commitment and per-request ceiling remain constraints.

Quick Pass costs $12.99 once for 24 hours of access, with unlimited AI Humanizer and AI Detector use plus 20 plagiarism-check credits. It is a focused short-term option rather than a recurring plan. Lifetime Access costs $199 once as a limited-time offer (the page also shows 300 USD), providing 2,400 plagiarism-checker and API credits plus unlimited humanizer and detector use. It favors heavy, long-term users willing to trade recurring billing for a large upfront payment.

Platforms

Rephrasy is offered on Android, iOS, the web, as a browser extension, and through an API. That coverage suits users moving between mobile, desktop web pages, and integrated software rather than staying in one editor.

Who it's for

Choose Rephrasy if you need rewriting, detector checks, style consistency, and automation in one service, especially across 50-plus languages. It is a stronger fit for marketers, multilingual publishers, and developers than for someone seeking only a lightweight paraphrase. Academic users can benefit from the Paper style and detector checks, but should not treat humanization as protection against institutional AI policies.

Pros and cons

Pros

• Combines humanization, detector checks, plagiarism checking, style presets, and custom styles.
• Works across mobile, web, extension, API, and MCP-connected assistants.
• Business and Professional plans add meaningful API and detector capabilities.
• Large HTML or Markdown API requests support structured content.

Cons

• Paid plans bill annually, limiting flexibility for users who want month-to-month service.
• Growth lacks API access and is capped at 100 monthly humanizations.
• Every listed paid humanization is limited to 2,000 words.
• Terms provide no assurance that rewritten text will pass AI detectors.
• Privacy terms involve third-party VPS processing and Firebase storage, with retention tied to necessity or legal requirements.

Alternatives

AI Text Humanizers is the broader category guide for comparing services. Choose StealthWriter instead if you prefer a freemium service with Android, iOS, and web access, including 10 daily humanizations and scans on its free plan. WriteHuman is a better match when you want an extension and API alongside a small free allowance of three requests per month. Pick StealthGPT when pay-as-you-go billing matters: its Super plan charges $0.05 per 100 words without a subscription. Walter Writes AI suits buyers seeking an annual plan with a stated 30,000-word monthly allowance on Starter. Humanize AI is an option for a web/API workflow with a 1,500-word free monthly plan. 254labs Ghost Mode Humanizer is web-only. Bypass Engine offers a free credit-based starter plan. HumanizeAI.io is another freemium web alternative with unlimited free words overall but limited request sizes.

Verdict

Rephrasy is a strong choice for writers and teams that want rewriting, style management, detector checks, and API or extension access under one roof. Its main reason to choose it is workflow breadth across platforms and languages; its main reason to look elsewhere is the annual billing and the explicit absence of any guarantee against AI detection.