Free / Open-sourceAI content detection and a full writing toolkit in one place
12 alternatives to Certy AI, matched by what they do.
| Rank | Tool & Tagline | Official Domain | Monthly Visits | MoM Growth | Pricing Model | Primary Market | Rating | Compare |
|---|---|---|---|---|---|---|---|---|
| ● | Certy AI | certyai.com | 0 | 0 (0%) | Contact for Pricing | Global | — | Profile |
| 1 | ZeroGPT | zerogpt.com | 32.86M | 5.41M (+19.7%) | Freemium, Paid | United States | 3.8 | Compare |
| 2 | Copyleaks | copyleaks.com | 2.4M | -394.39K (-14.1%) | Paid, Contact for Pricing | United States | 4.4 | Compare |
| 3 | Winston AI | gowinston.ai | 604.45K | 31.17K (+5.4%) | Freemium, Free Trial | United States | 4.2 | Compare |
| 4 | Creatify | creatify.ai | 738.6K | -41.14K (-5.3%) | Freemium | United States | 4.3 | Compare |
| 5 | GPTZero | gptzero.me | 23.25M | 5.7M (+32.5%) | Freemium, Paid | United States | 4.1 | Compare |
| 6 | Originality.ai | originality.ai | 2.05M | 55.72K (+2.8%) | Paid | United States | 4 | Compare |
| 7 | Lasso Moderation | lassomoderation.com | 2.39K | -1.53K (-39.1%) | Paid | United States | 4.4 | Compare |
| 8 | Isgen AI Detector | isgen.ai | 901.92K | 49.42K (+5.8%) | Freemium | South Korea | 3.8 | Compare |
| 9 | Checkstep | checkstep.com | 14.59K | -4.01K (-21.5%) | Free Trial, Contact for Pricing | United States | 4.3 | Compare |
| 10 | identifAI | identifai.net | 3.51K | -469 (-11.8%) | Contact for Pricing | Romania | 4.2 | Compare |
| 11 | Undetectable AI | undetectable.ai | 3.11M | 464.72K (+17.5%) | Freemium | United States | 3.8 | Compare |
| 12 | LensAI | lens-ai.com | 642 | -554 (-46.3%) | Contact for Pricing | Global | 4 | Compare |
Free / Open-sourceAI content detection and a full writing toolkit in one place

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Free / Open-sourceAI content detection and a full writing toolkit in one place
Free / Open-sourceDetect AI-generated text and images with benchmark-tested accuracy
Free / Open-sourceAI ad generator for video and image creatives at scale
Free / Open-sourceAI detection and writing verification built for schools and editors
Free / Open-sourceAI detector, plagiarism and content-quality checks in one scan
AI moderation that clears 99.9% of flagged content automatically
Free / Open-sourceMultilingual AI detector with sentence-level insight
Free / Open-sourceAI content moderation platform for trust and safety teams
Enterprise deepfake detection for images, video and synthetic voice
Free / Open-sourceDetect, humanize and verify AI content in one place
Computer-vision advertising that turns any image or video into a shoppable moment