What is AI Image Upscaler?
Free online AI image upscaler. Intelligently enhance image resolution to 2x or 4x while maintaining sharpness. Great for old photo restoration, low-res enhancement, and print preparation.
▶Use Cases4 scenarios
- ◆Old photo restoration
- ◆Low-res enhancement
- ◆Print preparation
- ◆Design asset upgrade
▶How to Use4 steps
- 1Upload your image
- 2Choose upscale factor (2x or 4x)
- 3AI enhances quality
- 4Download the HD result
▶Features4 features
- ✓AI-powered
- ✓2x/4x options
- ✓Sharp results
- ✓Free unlimited
▶FAQ7 questions
What is the AI Image Upscaler?
An online image enhancement tool. Input: a low-resolution image. Output: a 2x or 4x resolution version with AI-preserved details. Use it for restoring old photos, enhancing low-res images, and print preparation.
Will it look blurry after upscaling?
The AI algorithm fills in details while upscaling to keep the image sharp.
What is the max image size?
Common sizes are supported. We recommend uploading images under 5MB.
What is the max output resolution?
4x upscale produces up to 16000x16000px (from a 4000px input). Images exceeding device memory are auto-tiled.
Which is better, 2x or 4x?
2x is best for moderate enhancement (500px to 1000px) with natural detail. 4x is for large enlargements (200px to 800px) where the AI adds more texture but may introduce slight artifacts.
How much bigger will the file be?
In PNG, 2x increases file size roughly 3-4x; 4x increases it 12-16x. JPG output keeps it to about 2-3x.
What input formats are supported?
JPG, PNG, WebP, and BMP. Output format matches the input format.