Show HN: Sarpro – Fast Sentinel-1 SAR GRD → GeoTIFF/JPEG in Rust

2 danielVi 0 8/12/2025, 5:37:00 AM github.com ↗

I’ve released sarpro, an open-source Rust tool for converting Sentinel-1 Synthetic Aperture Radar (SAR) Ground Range Detected (GRD) products into GeoTIFF or JPEG.

Why? You know batch conversion can be painfully slow. sarpro is fast (Rust-based), supports CLI, GUI, and Rust API, and includes: • Batch processing for many GRDs at once • Synthetic RGB composition from polarization channels • Autoscaling and padding for consistent image rendering • Output as GeoTIFF or JPEG

On my machine M4Pro12, (~500MP) dual-band image scaled to 2048px on the long side and carrying metadata took just 35 seconds with CPU < 22% usage.

I’d love feedback from the remote sensing / EO community — ideas for more processing modes, more RGB presets, or cloud pipeline integration with other tools and workflows welcome.

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Show HN: Sarpro – Fast Sentinel-1 SAR GRD → GeoTIFF/JPEG in Rust

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