linebender/kompari

Image diffing for testing and developer tools.

Rust

62

55 commits

updated Apr 19, 2026

See the code

README

Kompari

Kompari is a tool for reporting image differences. It is intended for use in snapshot testing. It can be used as a stand-alone CLI tool or as a Rust crate.

CLI

Local build

$ cargo build --release

Usage

Create static HTML report:

$ cargo run --release report <left/image_dir> <right/image_dir>

Start HTTP server for interactive test blessing:

$ cargo run --release review <left/image_dir> <right/image_dir>

Minimum supported Rust Version (MSRV)

This version of Kompari has been verified to compile with Rust 1.85 and later.

Future versions of Kompari might increase the Rust version requirement. It will not be treated as a breaking change and as such can even happen with small patch releases.

Click here if compiling fails.

As time has passed, some of Kompari's dependencies could have released versions with a higher Rust requirement. If you encounter a compilation issue due to a dependency and don't want to upgrade your Rust toolchain, then you could downgrade the dependency.

# Use the problematic dependency's name and version
cargo update -p package_name --precise 0.1.1

License

Licensed under either of

at your option.

Contributors

spirali

38 commits

xStrom

14 commits

DJMcNab

2 commits

tomcur

1 commits

linebender/kompari

Image diffing for testing and developer tools.

Rust

62

55 commits

updated Apr 19, 2026

See the code

README

Kompari

Kompari is a tool for reporting image differences. It is intended for use in snapshot testing. It can be used as a stand-alone CLI tool or as a Rust crate.

CLI

Local build

$ cargo build --release

Usage

Create static HTML report:

$ cargo run --release report <left/image_dir> <right/image_dir>

Start HTTP server for interactive test blessing:

$ cargo run --release review <left/image_dir> <right/image_dir>

Minimum supported Rust Version (MSRV)

This version of Kompari has been verified to compile with Rust 1.85 and later.

Future versions of Kompari might increase the Rust version requirement. It will not be treated as a breaking change and as such can even happen with small patch releases.

Click here if compiling fails.

As time has passed, some of Kompari's dependencies could have released versions with a higher Rust requirement. If you encounter a compilation issue due to a dependency and don't want to upgrade your Rust toolchain, then you could downgrade the dependency.

# Use the problematic dependency's name and version
cargo update -p package_name --precise 0.1.1

License

Licensed under either of

at your option.

Contributors

spirali

38 commits

xStrom

14 commits

DJMcNab

2 commits

tomcur

1 commits

Languages

Rust

99.9%