Best Free AI Image Checkers in 2026 (Ranked & Reviewed)

As AI image generation becomes mainstream, demand for reliable detection tools has skyrocketed. Dozens of tools claim to detect AI-generated images — but they vary enormously in accuracy, speed, and the types of AI generators they are trained to recognise. We've tested the most popular options to help you choose.

What to look for in an AI image checker

• Accuracy: does it correctly identify AI images from Midjourney, DALL-E, and Stable Diffusion?
• Speed: how quickly does it return a result?
• Confidence scoring: does it show a confidence percentage, or just a binary yes/no?
• Platform support: can it analyse images from social media links automatically?
• Privacy: does it store or use your uploaded images?
• Free tier: how many free analyses do you get?

1. ForgeSpy — Best overall for multi-modal detection

ForgeSpy stands apart from text-focused AI detectors by specialising in visual media. It uses multiple independent vision models trained specifically on AI-generated images and provides a confidence percentage for each scan. Crucially, it also detects deepfakes and AI-generated audio — making it the only tool that covers all three media types in a single scan.

• ✓ Multi-model detection with confidence scoring
• ✓ Supports direct image upload AND social media URL paste
• ✓ Includes deepfake detection and AI audio analysis
• ✓ iOS and Android mobile app available
• ✓ 5 free credits on sign-up, no card required
• ✗ Free tier is credit-based (limited scans)

2. Hive Moderation — Best for high-volume API use

Hive Moderation offers a well-regarded AI-generated image detection API used by many enterprise content platforms. It has strong performance on major generators but is primarily designed for developers building moderation pipelines, not casual end-users. The web interface is minimal.

• ✓ Strong API for developers
• ✓ High throughput
• ✗ Not designed for individual users
• ✗ Paid-only for meaningful usage

3. Illuminarty — Good for images only

Illuminarty is a straightforward AI image checker with a clean web interface. It provides a probability score and is reasonably accurate on Midjourney and Stable Diffusion output. However, it does not analyse videos, audio, or social media links — and doesn't detect deepfakes.

• ✓ Clean, simple interface
• ✓ Free tier available
• ✗ Images only — no video or audio detection
• ✗ No social media URL support

Verdict: Which should you choose?

For individual users who need to check images from social media — especially for deepfakes or voice cloning in addition to AI image generation — ForgeSpy is the most complete free tool available. For developers needing bulk API access, Hive Moderation is worth evaluating. For quick standalone image checks without sign-up, Illuminarty is a reasonable lightweight option.