AI Outpainting
Generates new content that seamlessly extends the original image.
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Image Expansion
Extend your image canvas with AI outpainting.
Expand the canvas of any image by outpainting new content around the edges. Phlegethon's expansion engine generates seamless new content that matches the original style.
Free to try. No credit card required for any tool.
~25s
Avg. Processing Time
1.5x–3x
Expansion Ratios
20MB
Max File Size
5
Credits
Image Expansion uses AI outpainting to extend your image beyond its original borders. The engine analyzes the existing image content — style, lighting, colors, and composition — and generates new content that seamlessly continues the scene. Choose from preset expansion ratios (1.5x, 2x, 3x) or custom dimensions. Great for creating wider compositions, adding space for text overlays, or expanding portrait crops.
Features
Seamless Expansion
No visible seam between original and generated content.
Custom Canvas Size
Choose from preset ratios or custom dimensions.
Consistent Style
Generated content matches the original image's style and lighting.
Multiple Ratios
1.5x, 2x, 3x, and custom expansion options.
Forge-Ready Output
Expanded images are ready for the bypass pipeline.
Use cases
📸
Photography
Expand portrait crops to show more of the scene.
💼
Commercial Use
Add space for text overlays and branding in marketing images.
🔥
Content Creators
Expand images to fit different platform aspect ratios.
🎨
Digital Art
Extend compositions to create wider or taller formats.
How it works
01
Upload Your Image
Upload a JPG, PNG, or WebP up to 20MB.
02
Choose Expansion Ratio
Select 1.5x, 2x, 3x, or a custom expansion size.
03
Process
The engine outpaints the new content in ~25 seconds.
04
Download Expanded Image
Download your expanded image and use it for forging or other purposes.
Phlegethon Image Expansion vs. Adobe Firefly Outpainting
| Feature | Phlegethon | Adobe Firefly |
|---|---|---|
| NSFW content | Yes — no restrictions | Content filters block adult content |
| Cost | free to try (~) | Adobe CC subscription required |
| Seamless blending | AI-matched style and lighting | Good, but requires manual adjustment |
| Bypass-ready output | Yes — forge pipeline integrated | No bypass capability |
| Expansion ratios | 1.5x, 2x, 3x, custom | Custom canvas only |
| Skill required | None | Familiarity with Firefly UI required |
FAQ
What expansion ratios are available?
1.5x, 2x, and 3x are available as presets. Custom dimensions may also be available depending on the image.
Does the generated content always look seamless?
For most images, yes. Complex or highly detailed edges may occasionally show slight inconsistencies.
Can I expand in only one direction?
The tool expands in all directions by default. For directional expansion, use the Custom Editor in Gen AI.
Should I expand before or after forging?
Always before. Complete all editing first, then forge.
Related tools
Use Image Expansion on Phlegethon
Try free — no credit card required. Uncensored where the product allows. 18+ only.
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