A Copyleaks alternative for editing AI-assisted drafts (and when Copyleaks is the better pick)

Copyleaks is an AI-content and plagiarism detector with plans for individuals, businesses and schools. DraftCheck is a linter, not a detector. It shows which sentences carry AI-writing habits and how to rewrite them, and it doesn't estimate who wrote the text. Depending on the job, you can use it alongside Copyleaks or instead of it.

When Copyleaks is the better choice

• You need detection, not editing. If the task is flagging possible AI use in submissions, a detector fits. DraftCheck doesn't make that call.
• You work in more than one language. Copyleaks' pricing page lists AI detection in 30+ languages and plagiarism detection in 100+. DraftCheck's rules cover English only.
• You're in education or need integrations. Copyleaks lists LMS integrations (Canvas, Moodle, D2L Brightspace, Schoology, Sakai, Edsby and Blackboard), and API access through its Enterprise and Education plans.
• You also check images. Its plans include AI image detection, which DraftCheck doesn't do.

When DraftCheck fits

• Editing a draft before it publishes. Each flag points at a sentence, names the habit ("it's not X, it's Y", a staged run-up, a chatbot sign-off) and says how to fix it. You get a to-do list for the edit, which a probability score can't give you.
• CI and agent pipelines. POST /api/check is free for up to 5,000 characters per call with no key. There's an MCP server at /mcp for agents, and an open-source CLI and GitHub Action that can fail a docs pull request above a score you set.
• Free, no signup. The browser checker runs on your machine, so the text you paste isn't uploaded. There's no account and no word quota.
• Deterministic and explainable. The same text always gets the same 0-100 score, and each flag comes from a named rule you can read on the patterns page.

DraftCheck can't tell you whether a model wrote something, and it never claims to. A carefully edited AI draft can score 0, and a person who writes "in today's fast-paced world" gets flagged. Its rules are written for English prose. If those limits rule it out for your job, a detector is the right tool.

Side by side

Using both

The two tools answer different questions, so they don't conflict. A common split: writers and editors run DraftCheck while revising, and whoever needs an authorship signal runs Copyleaks at intake. Don't read one tool's result as a prediction of the other's. A low DraftCheck score says the text avoids common AI-writing habits; it says nothing about how a detector will score it. And whichever detector you use, treat its result as one signal and have a person review anything flagged.

Copyleaks details on this page come from the Copyleaks pricing page and the Copyleaks AI detector page, checked Oct 5, 2026. Prices and plans change, so confirm on their site before you buy. Copyleaks is a trademark of its owner; the name is used here only to describe the product. DraftCheck isn't affiliated with Copyleaks.

More guides

• Words ChatGPT overuses, and what to write instead
• How to make AI writing sound human
• AI detectors vs. AI-writing checkers
• A GPTZero alternative for editing drafts (and when GPTZero is the better pick)
• An Originality.ai alternative for fixing AI-sounding copy (and when Originality.ai is the better pick)
• All AI-writing patterns