Listed alphabetically. A tool is ranked by its reviews once it has 3.
| Tool | Reviews | Lowest paid plan | Free plan | Free trial | Public API | Runs on | Main features |
|---|---|---|---|---|---|---|---|
 PangramAn AI checker for ChatGPT, Claude and Gemini text. | ReviewsNone yetWrite one for Pangram | Lowest paid plan$20per monthIndividual, as of November 14, 2026 | Free planYes | Free trial7 days | Public APIYes | Runs onChrome | Main features
|
 SaplingFree AI detector that checks if text is AI-generated. | ReviewsNone yetWrite one for Sapling | Lowest paid plan$25per month, or $12 per month billed annuallyPro, as of November 14, 2026 | Free planYes | Free trial1 month | Public APIYes | Runs onChrome, Firefox, Edge, Mac, Windows | Main features
|
 Undetectable AIDetect AI, humanize your writing, and enhance your creative work. | ReviewsNone yetWrite one for Undetectable AI | Lowest paid planNot confirmed | Free planNot confirmed | Free trialYes | Public APINot confirmed | Runs onChrome | Main features
|
 Winston AIAI content detector and plagiarism checker for ChatGPT, Claude, Google Gemini and more. | ReviewsNone yetWrite one for Winston AI | Lowest paid plan$18per month, monthly billingEssential, as of November 14, 2026 | Free planYes | Free trial14 days | Public APINot confirmed | Runs onChrome | Main features
|
From each tool's own website. “Not confirmed” means we couldn't confirm it there, not that the tool doesn't have it. Each tool's page says when its facts were checked.
How this list is made
A tool is listed here only when we've confirmed on its own website that it has a free trial. Tools we couldn't confirm it for are left out, even if they may have it. Vendors can't pay for a place on this list. Add a tool we missed