# AI Image Detector — Check C2PA & Metadata Locally

> Check if an image was made with AI — read C2PA Content Credentials, EXIF, and PNG metadata locally in your browser. No upload, honest verdicts.

Source: https://toolpantry.app/ai-image-detector

## About

Read C2PA Content Credentials, EXIF camera data, and the hidden fields AI tools leave in PNGs — with honest verdicts about what the evidence proves and what it does not.

## Quick answer

How do I check if an image is AI-generated? Choose the image and the tool reads its metadata: AI tool names, diffusion parameters, and C2PA manifests are strong signals. No metadata is not proof of authenticity — platforms strip it on upload. Everything is checked locally.

## How to check an image for AI markers

1. **Choose the original file** — not a screenshot or a version downloaded from social media (both lose metadata).
2. **Read the verdict** — strong signs (AI tool markers), signed provenance, camera data, or none.
3. **Inspect the evidence** — every field found is listed with its source; the raw dump shows everything.

## What the evidence means

- **Diffusion parameters** ("Steps: 30, Sampler: Euler, CFG scale: 7…") — written by Stable Diffusion WebUI and similar tools. Decisive.
- **Tool names** — "Midjourney", "DALL·E", "Firefly" in Software, CreatorTool, or XMP fields. Decisive.
- **C2PA Content Credentials** — a signed manifest. The strings show whether a camera or an AI service signed it.
- **Camera EXIF** — maker and model. A hint of capture, but metadata survives AI edits sometimes.

## Good to know

Provenance checking is becoming part of everyday media literacy: check before you trust, before you repost, and before you pay for a "photo". For your own images, consider adding Content Credentials from a supporting tool before publishing. Related: [EXIF viewer](https://toolpantry.app/exif-viewer.html) for full photo metadata and [metadata remover](https://toolpantry.app/pdf-metadata-remover.html) when you want to strip yours before sharing.

## Notes

This tool reads metadata — it does not analyze pixels, so it cannot detect AI images whose metadata was stripped (most social platforms strip it). Treat "no markers found" as "unknown", not "authentic". For the opposite direction, the evidence is usually decisive: diffusion parameter blocks, tool names, and signed C2PA manifests are hard to fake accidentally.

## FAQ

**Raw metadata dump This tool reads metadata — it does not analyze pixels, so it cannot detect AI images whose metadata was stripped (most social platforms strip it). Treat "no markers found" as "unknown", not "authentic". For the opposite direction, the evidence is usually decisive: diffusion parameter blocks, tool names, and signed C2PA manifests are hard to fake accidentally. How to check an image for AI markers Choose the original file — not a screenshot or a version downloaded from social media (both lose metadata). Read the verdict — strong signs (AI tool markers), signed provenance, camera data, or none. Inspect the evidence — every field found is listed with its source; the raw dump shows everything. What the evidence means Diffusion parameters ("Steps: 30, Sampler: Euler, CFG scale: 7…") — written by Stable Diffusion WebUI and similar tools. Decisive. Tool names — "Midjourney", "DALL·E", "Firefly" in Software, CreatorTool, or XMP fields. Decisive. C2PA Content Credentials — a signed manifest. The strings show whether a camera or an AI service signed it. Camera EXIF — maker and model. A hint of capture, but metadata survives AI edits sometimes. Good to know Provenance checking is becoming part of everyday media literacy: check before you trust, before you repost, and before you pay for a "photo". For your own images, consider adding Content Credentials from a supporting tool before publishing. Related: EXIF viewer for full photo metadata and metadata remover when you want to strip yours before sharing. Advertisement QUICK ANSWERS Can this tool prove an image is AI-generated?**

It proves the opposite direction only: when AI markers are found (tool names, diffusion parameters, C2PA manifests from AI services), the evidence is strong. When no markers are found, that is NOT proof the image is real — platforms strip metadata on upload and many AI tools write no signatures at all.

**What are C2PA Content Credentials?**

An open standard (also called Content Credentials) that embeds cryptographically signed provenance data into an image: who made it, with what tool, and what edits happened. Cameras from Leica, Sony, and Nikon sign captures; Adobe Firefly, DALL·E, and other AI tools can sign generations. This tool detects the manifest and extracts readable strings from it.

**Why does a real photo show "no metadata"?**

Most social platforms and messaging apps strip metadata during upload. A screenshot also has none. The absence of metadata says nothing about how the image was made — use the visual check and provenance claims as well.