ZeroTell is an online service for checking and improving written text. It is built around one question: how does this text read? Paste a draft, see which passages look machine-written or copied, then revise them until the writing sounds like you.
Company
ZeroTell is built and operated by ZeroTell SI Inc, a profit corporation registered with the Wyoming Secretary of State, USA.
- Legal name: ZeroTell SI Inc
- Brand / website: ZeroTell — zerotell.com
- Entity: Wyoming profit corporation, filing ID 2026-002105619
- Founded: October 13, 2026
- Mailing address: 30 N Gould St Ste R, Sheridan, WY 82801, USA
- Customer support: support@zerotell.com or our contact page
What we do
ZeroTell is software as a service: everything runs in the browser at zerotell.com — there is nothing to install and nothing is shipped. The main tools are:
- AI Detector — scores a text for AI-generated patterns and highlights the sentences behind the score.
- AI Humanizer — rewrites stiff or machine-sounding passages so they read naturally, keeping the meaning.
- Plagiarism Checker — compares a text with pages on the web and links every matching source.
- Paraphraser, Summarizer and Grammar Checker — everyday editing for drafts, emails and reports.
- Citation Generator, AI Chat, Word Counter and 100+ writing tools — see the full list on the tools page.
Who uses ZeroTell
- Students revising essays and checking citations before they hand work in.
- Writers, bloggers and marketers polishing drafts and checking originality before publishing.
- Professionals and freelancers cleaning up reports, emails and client deliverables.
- Educators who want a second signal when they review writing — never as proof on its own.
How the service is sold
- Free checks let visitors try the core tools without an account, with word limits.
- ZeroTell Pro is a subscription that unlocks every tool. Plans are billed weekly, monthly or yearly; the weekly plan starts with an introductory price for the first week. Current prices for your country are on the pricing page and in the Subscription Terms.
- Payments are processed by Stripe. We never receive or store your full card number.
- Renewal and cancellation: plans renew automatically until you cancel. You can cancel at any time in Dashboard → Subscription; access continues until the end of the period you paid for.
- Refunds: you can ask for a full refund of your first payment within your first paid billing period, and we review any charge that went wrong — see our Refund Policy.
Your text and your data
- We don't sell your personal data, and we don't use the text or files you submit to train AI models.
- Text is processed to give you a result. If you are signed in, finished paid runs are saved to your History for 30 days so you can reopen them, and you can delete them at any time.
- Details are in our Privacy Policy and Cookie Policy.
How we think about AI detection
- Detectors give signals, not verdicts. No AI detector — ours included — can prove who wrote a text. Scores are probabilities, and false positives happen, especially on short, formal or non-native writing.
- We don't promise to "bypass" anything. The Humanizer helps writing read more naturally; it is not a guarantee against any third-party detector, and we won't market it as one.
- Follow your institution's rules. If your school or employer restricts AI assistance, those rules come first — see our Academic Integrity page. ZeroTell is meant to help you understand and improve your own writing.
Contact
Questions about your account, a charge, a refund or a result that looks wrong? Email support@zerotell.com or use the contact page — we reply by email. Postal mail: ZeroTell SI Inc, 30 N Gould St Ste R, Sheridan, WY 82801, USA.
Legal terms: Terms of Use · Subscription Terms · Privacy Policy.