ContentDetector.ai

What ContentDetector AI is

ContentDetector AI is described as a free online scanner that estimates how much of a text was written by a machine, with word-count and readability readouts alongside the score. The official site returned a forbidden error during this check, so this description draws on third-party directories and should be verified on the site itself.

The readability and word-count readouts are the part that outlives any argument about detection, because they describe the text rather than speculating about its author.

What it does

You paste text and receive an AI-generated percentage with basic statistics. The loop is paste, scan, read.

Public directories describe it as a free scanner for anyone vetting a draft, which places it in the crowded group of tools offering a quick number with no setup. The scale of that group is itself worth noting: a percentage that is easy to produce and hard to validate invites reliance that the underlying method does not support.

Because the official site was unreadable here, the current feature set and whether any paid tier exists should be confirmed before relying on it.

Who it is for

It is aimed at writers, teachers and editors. Teachers are the audience with the most at stake, because a percentage used in an assessment decision affects a student's record.

What to keep in mind

The central caution is the same one that applies throughout this category, and it matters more when the audience is educational: a detection percentage is a signal, not evidence. These systems misclassify human writing, and they do so unevenly, falling hardest on non-native speakers, on writers with unusual registers and on formulaic but genuinely human work such as lab reports and legal boilerplate. Using a score as the basis for an accusation or a sanction is the failure mode, and it is a serious one because the cost falls on the person least able to contest it.

So the defensible practice is to treat a high score as a prompt for a conversation or a request for drafts, and to give the student a route to respond. That is also what most institutional policies now require.

No privacy, security or certification text was visible in what could be read, so review the policy before uploading sensitive text, and prefer pasting over uploading where the material is confidential.

Two practical points. Test the scanner on writing you know to be human and formulaic, because that is the case it will get wrong. And check the site directly, since the description here is second-hand and the product may differ materially from it. If the site remains unavailable, treat the absence as the answer and use a checker whose terms you can read.