AI Image Upscaler (4x)
Upscale images 4x with AI. Turn a 500x500 photo into a sharp 2000x2000 image using Real-ESRGAN or HAT neural networks.
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AI Upscaled 4x
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Processed on our servers — requires a free account
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How to Use AI Image Upscaler (4x)
- Upload your video, image, or GIF file
- Choose 2x or 4x upscale factor
- Select an AI model — Fast for most content, Quality for maximum detail, Anime for cartoon/anime
- Click Process — parallel GPU processing handles video quickly
- Download the upscaled result
Features
- 3 AI models: Fast (Real-ESRGAN), Quality (HAT transformer), Anime-optimized
- 2x or 4x resolution upscaling
- Works on video, images, and GIFs
- Parallel GPU processing — upscale minutes of video in minutes
- Preserves audio in video files
Frequently Asked Questions
- What's the difference between the AI models?
- Fast (Real-ESRGAN) offers the best speed-to-quality ratio for general content. Quality (HAT) uses a transformer architecture for the sharpest possible details but is 3-5x slower. Anime is specifically trained on anime/cartoon content for the best results on that style.
- Can I upscale 720p to 4K?
- Yes! Use 4x scale to go from 720p (1280x720) to near-4K (5120x2880). For 1080p to 4K, use 2x scale.
- How long does video upscaling take?
- With parallel GPU processing, a 1-minute 720p video takes about 5-10 minutes depending on the model. Quality (HAT) is 3-5x slower than Fast.
- Will upscaling add real detail?
- AI upscaling generates plausible detail that wasn't in the original — edges become sharper, textures more defined. It's not magic, but results are dramatically better than simple bicubic scaling.