Content Aware Border Fill

Extend image borders intelligently using content-aware algorithms. For designers, developers, and content creators. Runs entirely offline in your browser.

or drag and drop

Border Width

Fill Method

Preserve original content Blend edges

Results

Original: -

Extended: -

Status: Ready

Pattern Preview

Preview how your extended image would look as a seamless tile pattern. Useful for backgrounds and textures.

Tile Size: 256px

Frequently Asked Questions

Which browsers support this tool?

All modern browsers with Canvas support (Chrome, Firefox, Safari, Edge). Performance varies by device capabilities.

How does the content-aware algorithm work?

It analyzes image patterns and textures to intelligently extend borders while maintaining visual consistency with the original content.

What's the maximum image size?

Limited by your device memory. For best performance, use images under 8MP. Larger images are automatically downscaled for preview.

Formulas and Assumptions

Patch-based Algorithm:

Uses 8x8 pixel patches with overlap
SSD (Sum of Squared Differences) for patch matching
Gaussian pyramid for multi-scale processing
Poisson blending for edge integration

For informational and educational purposes only. All processing runs locally in your browser. Color management, codecs, and performance depend on your device. Verify critical work with professional tools.

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Content Aware Border Fill Approximate

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