Supported formats and limitations

Latest release: 0.1.3.

image-slash-star is an early codec library. Support depends on the format, pixel mode, operation, and enabled Cargo features. It does not implement every part of every image-format specification.

Area	Available	Limits
JPEG, PNG, GIF, BMP, TIFF, WebP	Selected decode, encode, detection, and inspection paths	Modes, options, and metadata vary by codec
ICO/CUR	Selected container and embedded PNG/BMP paths	Requires the ico feature, which enables PNG and BMP
Multi-frame images	Selected sequence operations	Check frame, timing, disposal, and encoding support for the chosen format
AVIF	Opt-in decoding and inspection, including selected high-depth, HDR and animated files	No encoder; supported syntax and layouts are limited to tested paths
Resource policies	Input, output, dimension, sequence, and cooperative work limits	Defaults unlimited; no guarantee covering every allocation or immediate cancellation
Image editing	Not provided	Resize, rotate, crop, drawing, and filtering belong in a separate library
JavaScript and Python packages	Not provided	This project distributes a Rust crate

The high-depth, HDR and animated AVIF additions are validated on main and await the next release; version 0.1.3 retains its earlier partial AVIF scope.

The default codec features are jpeg, png, gif, bmp, tiff, webp, and ico. AVIF must be enabled explicitly. There is no native codec fallback.

Start with API usage. If you need a particular mode or sequence operation, consult the detailed codec reference and AVIF scope. These references include incomplete paths rather than assuming that a format name means every operation is supported.

Try representative application inputs before adopting the crate. It is not advertised as hardened for arbitrary hostile files. Contributor measurements and implementation progress are recorded in evidence and the roadmap.