How To Detect AI Images Without Uploading

Most AI image detectors work by uploading your image to a server for analysis. That's a problem for private photos, confidential work images or anything under embargo. You can still do a lot without sending the file anywhere.

Read the metadata locally

Many AI tools write clues into the file: generator names, Stable Diffusion prompts and settings, IPTC tags and Content Credentials. Reading those needs no upload.

• In Chrome: AI Image Detector (made by Patrick Bushe, who runs this site) reads metadata in your browser when you right-click an image. Its standard check doesn't send the image to any detection service. Leave its optional Deep Scan off, since that uploads to SightEngine or Hive.
• On your computer: ExifTool, a free command-line program, reads every metadata field in a file, including PNG text chunks and XMP.
• Built into your system: right-click a file and open Properties (Windows) or Get Info (Mac) for basic details, such as camera model.

Check Content Credentials carefully

Content Credentials Verify needs you to upload or link the file. If you can't, a local metadata reader will at least show whether a C2PA entry exists, though not whether its signature is valid.

Visual checks

Zoom in on hands, text, reflections, jewelry and backgrounds. No tool needed, and nothing leaves your device.

When upload is hard to avoid

• Visual AI detectors run large models on servers. Few run locally.
• Reverse image search sends the image to Google, Bing or TinEye to compare it with their indexes.

If you need these, read the service's privacy policy, check whether it keeps uploads, and consider cropping out sensitive parts first.

Know the limits

Local checks only work when metadata survives. If the image was screenshotted or posted to social media, there may be nothing left to read, and "No Metadata Found" says nothing about whether it's real.

See private, local AI image detection.