OmniDetect: Free AI Content Detector & Checker — Full 2026 Guide

Evidence, Not Just a Score

When OmniDetect says a passage is fine, it shows you the evidence. The result includes the analysed scope, method status, evidence, and known limits instead of a mysterious percentage, so you can inspect what it read and which passages mattered.

A result you can inspect rather than an authority you must accept.

Free Preview Without Signup

Guest users get a real analysis of the opening of their document with no sign-up and no card. The free preview analyzes up to the first 2,000 characters, and you can accept up to 10,000 characters. A free account covers the whole document.

Try it before you decide, with the real score, scope, and limits visible.

Evidence-Guided Rewriting

When a complete result confidently flags specific passages, OmniDetect can propose focused rewrites. You review each change and re-check the revised text with the same Word Token balance, revising meaning, facts, citations, and personal voice rather than text solely to evade a detector.

Improve only what the evidence supports, then re-check the revised draft.

Your Text, Your Call

Your text goes over HTTPS to the engine that reads it, and a copy stays in your history until you delete it. You can delete any of it at any time, with or without an account. OmniDetect does not sell it, and the only outside parties who see it are the detection engines that analyse it.

Keep your document findable and deletable whenever you want.

Language-Matched Detection Engines

Your language decides which engine answers, and the choice comes from OmniDetect's own benchmark rather than a vendor pitch. The verdict and the passages behind it arrive together, along with the method version used.

A defensible next action from text, with the process as part of the result.

7-Day Pass for $9.99

The $9.99 7-Day Pass is a one-time purchase with no auto-renewal. It includes 30,000 Word Tokens and, for an eligible document, a complete review kit, passage-level revision guidance, and repeated comparable re-checking within seven days. Checkout appears only on an eligible result.

A bounded review kit and comparable re-checks for an eligible document with a confident-AI Red result.

• Transparent evidence, not just a scoreOmniDetect shows what it read, which passages mattered, how the method was validated, and where the answer becomes uncertain. When it says a passage is fine, it shows the evidence — not just a score.
• Free preview with no signupGuest users get a real analysis of the opening of their document — no sign-up, no card. The free preview analyzes up to the first 2,000 characters, with up to 10,000 characters accepted.
• Clear, inspectable result statesResults are presented with defined bands: 0-30 Likely Human, 31-70 Uncertain, 71-100 Likely AI. The verdict and the passages behind it arrive together.
• Evidence-guided rewriting with re-checkWhen a complete result confidently flags specific passages, OmniDetect can propose focused rewrites. You review each change and re-check the revised text with the same Word Token balance.

• Re-checking is limited to OmniDetect's own methodThe target state is limited to the current OmniDetect method no longer returning confident-AI Red for the comparable revised document. It is not a promise about another checker and cannot determine a school, employer, editor, Turnitin, or another checker's verdict.
• Not a determination of authorship or misconductOmniDetect never decides authorship, plagiarism, misconduct, or destination acceptance. The kit is not proof of who wrote the text and is not a bypass product.
• Paid offer is controlled and eligibility-basedCheckout appears only on an eligible result when the revenue-validation exposure is enabled and fulfilment capacity is healthy. The pricing page does not open checkout or reserve a task.
• Data retention and third-party exposureOmniDetect keeps submitted text so it stays in your history and to measure accuracy against real writing. You can delete any of it at any time, with or without an account. It is not sold, and the only outside parties who see it are the detection engines that analyse it.

Students checking essays before submission

Paste up to 50,000 characters and see which passages read as AI, how strongly, and what to change before submitting. The free preview analyzes up to the first 2,000 characters with no signup, and a free account covers the whole document. The 0-30 / 31-70 / 71-100 scale (Likely Human / Uncertain / Likely AI) gives a clear read on where a draft stands. For a second opinion on the same essay, you can also run it throughTurnitin orGptzero me.

ESL and non-native writers worried about false flags

OmniDetect lets you specify Writer as ESL / Non-native, Native Speaker, Professional, or Grammar-Edited (Grammarly etc.) so the analysis accounts for your context. If a result comes back uncertain, the site notes that uncertainty gets a second reading, and disputed writing gets appeal evidence. This matters for writers who have been flagged elsewhere simply for formal or edited phrasing.

Reviewing flagged passages and re-checking a revision

When a complete result confidently flags specific passages, OmniDetect can propose focused rewrites. You review each change and re-check the revised text with the same Word Token balance, following the Check Understand Improve Re-check flow. The $9.99 7-Day Pass includes 30,000 Word Tokens, passage-level fix guidance, and repeated comparable re-checking within seven days for an eligible document with a confident-AI Red result. If you want to compare how another detector reads the revised draft,Copyleaks andWinston AI are options in the same category.

Checking marketing, blog, and business content

OmniDetect supports Text Type options including Academic Essay, Blog Post, SEO / Marketing Content, Creative Writing, Business / Email, and Technical Writing, so the reading is matched to the kind of document you paste. You can also upload a .pdf, .docx, or .txt file or scan a URL instead of pasting text. The result shows the analyzed scope, method status, evidence, and known limits rather than just a percentage.

Paste up to 2,000 characters of your text directly into the scanner as a guest.

Start the analysis to see which passages read as AI and how strongly.

Create a free account to cover your whole document beyond the preview.