AI Text Detector

Find out if a text was written by AI or a human — 100% locally in your browser

Your text is analyzed locally and never uploaded to any server

RoBERTa OpenAI Detector (ONNX quantized)

Loading AI model…

Minimum 100 characters for reliable analysis. More text = more accurate result.

Try an example

100% Local Processing

Your text never leaves your device. The model runs entirely in your browser.

Transformer Model

RoBERTa fine-tuned on GPT output detection with quantized ONNX for fast loading.

Fast Analysis

Results in seconds after the model loads. Cached for instant future use.

Free & No Login

No account required. Completely free with no usage limits.

How It Works

1

Paste Your Text

Paste or type the text you want to analyze (minimum 100 characters).

2

AI Analysis

The RoBERTa model analyzes linguistic patterns to classify the text.

3

Read Results

View the AI vs human probability scores and the verdict.

Popular conversions

Frequently Asked Questions

How does the AI detector work?
It uses a RoBERTa model fine-tuned on GPT-2 output detection, converted to quantized ONNX format and run locally in your browser via Transformers.js.
Is my text uploaded anywhere?
No. All processing happens entirely in your browser. Your text is never sent to any server.
How accurate is the detection?
The model achieves high accuracy on typical AI-generated vs human text, but no detector is 100% reliable. Heavily edited AI text or very formal human writing can produce false results.
What AI models can it detect?
It is specifically trained to detect text generated by GPT-2 and similar large language models, including GPT-3, GPT-4 and ChatGPT.

Also try…

Face Swap Convert formats Remove background