
Nightmare AI
Free AI upscaler for photos and anime up to 4K.
User Rating
3.0
Score
60
Free/Trial Support
Supported
Features
4 Features
Last Updated
Feb 05, 2026
What is Nightmare AI?
Nightmare AI is an online AI Upscaler that uses real-esrgan based AI upscaler & enhancer model to increase image resolution while improving quality. It can upscale images up to 4K and offers optional face correction capabilities. It is designed to improve image quality and clarity and upscale images into HD resolution, supporting photos, anime, and images.
How to use Nightmare AI?
To upscale your photo/anime/images on Nightmare AI: Step 1: Upload your image. Step 2: Upscale - click the upscale button and choose the desired resolution (2K or 4K). Step 3: Download - click the download button to get your HD images.
Top Features
- AI Photo Upscaler
- AI Anime Upscaler
- AI Image Upscaler
Pros & Cons
No Data
Use Cases
- Enhance blurry photos to HD, 2K, or 4K resolution.
- Upscale anime, cartoon, and comic pictures without losing quality.
- Improve image quality and clarity for various types of images.
User Groups
No Data
Nightmare AI Pricing
Free PlanSubscription Plan
No detailed pricing information available
Cover Preview

NIGHTMARE AI Features
- AI Image Enhancer functionalityAI Image Enhancer
- AI Photo Enhancer functionalityAI Photo Enhancer
- AI Image Upscaler functionalityAI Image Upscaler
- AI Unblur Image functionalityAI Unblur Image