Compatibility

Runtime

• Node.js: >=22
• Package formats: ESM + CommonJS
• Types: bundled .d.ts declarations

Decode Support

Feature	Status
1-bit BMP	Supported
4-bit BMP	Supported
8-bit BMP	Supported
15-bit BMP	Supported
16-bit BMP	Supported
24-bit BMP	Supported
32-bit BMP	Supported
RLE4	Supported
RLE8	Supported
CORE/INFO/V4/V5 DIB handling	Supported

Encode Support

Feature	Status
1-bit output	Supported
4-bit output	Supported
8-bit output	Supported
16-bit output	Supported
24-bit output	Supported
32-bit output	Supported
Orientation control (top-down, bottom-up)	Supported
Palette-aware indexed output	Supported

Guarantees

• Fixture-backed decoding and encoding behavior.
• Quality gate in CI via pnpm check on clean checkout.
• Changeset-based releases with changelog tracking and provenance publishing.