ARM-software/astc-encoder

Health v2 · maintenance only

Adoption not part of the score

1295 stars · 283 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

The Arm ASTC Encoder (astcenc) is a command-line tool and codec library for compressing and decompressing images in the Adaptive Scalable Texture Compression (ASTC) format. It supports LDR and HDR inputs, all ASTC block sizes and profiles, and ships SIMD-tuned binaries for Windows, macOS, and Linux.

Use cases

• compress png textures to astc for a vulkan game
• convert ktx texture files to astc format
• decompress astc images back to png
• reduce game asset memory footprint with texture compression
• batch compress hdr exr images for gpu
• compare astc compression quality with psnr metrics

When to choose

• you need ASTC texture compression for OpenGL, OpenGL ES, or Vulkan content
• you want a fast, SIMD-optimized encoder with quality/time presets
• you need both LDR and HDR support across all ASTC block sizes

When to avoid

• you need other texture formats like BCn or ETC without converting
• you want a GUI-based texture tool
• your target platform does not support ASTC

Facets

cli-tool · maturity stable

image-processing compression cli graphics image-processing developer-tools windows cli astc texture-compression codec-library gpu-textures simd game-development macos linux

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