Best Free AI Image Detector Alternatives
8 alternatives to AI Image Detector with a free plan or free tier, ranked by how closely they match. The percentage is a match score, not a popularity score.
Replacing: AI Image Detector — This tool verifies whether an image was created by artificial intelligence or a human, delInput: images · Output: text
1
Illuminarty detects whether an image or a piece of text was created by AI.
Input: text, images · Output: data
Free planFrom $10/moAPI
94%Near drop-in replacement · same core category as AI Image Detector
00
How the score adds up
- Same core category55/55
- Covers AI Image Detector's goals25/25
- Feature description similarity14/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
AI Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
2
isFake.ai is a tool designed for detecting AI-generated content across different media types, including text, images, audio, and videos. It employs proprietary algorithms to analyze for characteristic
Input: text, images, audio, video · Output: data
Free planFrom $3.99/mo
56%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity11/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
AI Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
3
AI or Not is an AI detector that checks whether images, text, video, audio and music were generated by AI, and flags deepfakes.
Input: text, images, audio, video · Output: data
Free planFrom $5/moAPITeams
55%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity10/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
AI Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
4
Your voice, synthesized
Input: text, images, audio, video · Output: audio, data
Free planFrom $280/moAPI
48%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity3/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
Text to SpeechVoice Cloning
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
5
Winston AI is an AI content detector and plagiarism checker built for education, SEO, and writing.
Input: text, images, documents · Output: data
Free planFrom $10/moAPITeams
54%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity8/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
AI DetectionPlagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
6
Reality Defender detects deepfakes and AI-manipulated media across audio, video and images.
Input: images, audio, video · Output: data
Free planAPITeams
52%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity7/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
AI Detection
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
7
Pangram Labs makes an AI detector that checks whether text was written by a person or generated by a language model.
Input: text, images, documents · Output: data
Free planFrom $20/moAPIBrowser extension
52%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity7/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
AI DetectionPlagiarism Checking
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
8
Sightengine is an API service for moderating and analyzing user-generated content.
Input: text, images, audio, video · Output: data
Free planFrom $29/moAPITeams
49%Limited overlap
00
How the score adds up
- One lists the other's core category30/55
- Covers AI Image Detector's goals15/25
- Feature description similarity4/20
Shared goals 1 of the 1 we tag AI Image Detector for
Fake Image Detection
Also tagged for
API IntegrationImage Recognition
Goal tags are curated and capped, not a full feature audit — a missing tag is not a missing feature.
Can it really replace AI Image Detector? Vote on each alternative — no account needed. Votes gently reorder the list; they never change the match score.
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At a glance: top AI Image Detector alternatives
| Tool | Match | Input | Output | Pricing | Free plan | Rating | Category |
|---|---|---|---|---|---|---|---|
| Illuminarty | 94% | text, images | data | From $10/mo | Yes | — | AI Image Detector |
| isFake.ai | 56% | text, images, audio, video | data | From $3.99/mo | Yes | — | AI Detector |
| AI or Not | 55% | text, images, audio, video | data | From $5/mo | Yes | — | AI Detector |
| Resemble AI | 48% | text, images, audio, video | audio, data | From $280/mo | Yes | — | AI Voice Cloning |
| Winston AI | 54% | text, images, documents | data | From $10/mo | Yes | — | AI Detector |
| Reality Defender | 52% | images, audio, video | data | Free | Yes | — | AI Detector |
Frequently asked
What is the best free AI Image Detector alternative?
Illuminarty (94% match) is the closest free alternative to AI Image Detector: Illuminarty detects whether an image or a piece of text was created by AI. isFake.ai (56% match) and AI or Not (55% match) come next.
How is the match percentage calculated?
It measures how much of AI Image Detector's job a tool can take over: shared core category, how many of the same use cases it covers and how similar its feature set is. Popularity and ratings never change the percentage; they only break ties in the order. Lists are recomputed nightly and reviewed by editors for the most-visited tools.
How this list is ranked
The match score measures how much of AI Image Detector's job each tool can take over: shared core category, how many of the same use cases it covers, and how similar its feature set is. Popularity and ratings do not change the score; they only break ties in the order.
Lists are recomputed nightly from the live catalog and reviewed by our editors for the most-visited tools. Sponsored placements are marked and sit outside the ranking.