Free AI-powered photo extender for any aspect ratio with no sign-up required and no watermark
Stage
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Founded
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Based in
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Freemium
Pricing
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Free to try without sign-up; Basic $9.90 (100 credits), Standard $29.90 (500 credits), Pro $49.90 (1,250 credits). Each successful image uses 5 credits. One-time purchases with no subscription; credits never expire.
Key features
Semantic masks and bounding boxes with pixel-level precision
Depth maps and normal maps for 3D understanding
Physically-based rendering and ray tracing
Sensor simulation and multimodality support
Domain adaptation and domain inspector
3D keypoint generation for pose estimation
PyTorch and TensorFlow integration
3D generative scenes for multiple industries
Distributed rendering environment and cloud instance management
Real AI outpainting powered by gpt-image-2 model
Support for any aspect ratio including 1:1, 4:5, 16:9, 9:16, 21:9 and custom ratios
Free to try without signing up
No watermark on results
Free daily credits with a free account
Supports JPG, PNG and WebP files up to 4MB
Full resolution export
Results typically ready in 60–120 seconds
Works on any mobile or desktop browser without app installation
Secure HTTPS processing with no account required
What makes it different
5X more data at the same cost
50% more accuracy in computer vision models
40X faster AI development with shorter training cycles
Real generative AI instead of simple blur-and-stretch algorithms
Optional one-time credit purchases with no subscription
No watermark on downloaded results
Free daily credits automatically top up when balance runs low
SKY ENGINE AI
Photo Extender