# 使用 Homebrew, Nix 安装 odiff

查看 odiff 的安装路径、可执行文件、元数据以及面向 AI 代理工作流的安全说明。

## 安装

```sh
sudo av install brew:odiff
```

其他安装命令:

### macOS

- Homebrew (100%):

```sh
brew install odiff
```

  证据: local Homebrew formula metadata

### Linux

- Nix (92%):

```sh
nix profile install nixpkgs#odiff
```

  证据: nixpkgs package indexes: pkgs/by-name/od/odiff/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1

## 软件包事实

- **软件包键:** brew:odiff
- **软件包管理器:** Homebrew
- **版本:** 4.5.0
- **来源摘要:** Very fast SIMD-first image comparison library (with nodejs API)
- **主页:** <https://github.com/dmtrKovalenko/odiff>
- **仓库:** <https://github.com/dmtrKovalenko/odiff>
- **最后更新:** 2026-07-23T03:37:26Z
- **已生成:** 2026-08-03T19:37:03+00:00

## 可执行文件

- odiff (别名)

## 安装行为

- Bottle: 不可用

## 版本和新鲜度

- 页面生成时间: 2026-08-03
- 管理器版本: 4.5.0
## 项目历史与用法

odiff is a native image-comparison CLI and Node.js-facing tool aimed at visual regression testing and screenshot diffing. Its package story is about speed and portability: the README describes a move from OCaml to Zig with SIMD paths for SSE2, AVX2, AVX512, and NEON.

### 项目历史

The public GitHub repository was created on 2020-11-04. The README describes odiff as originally written in OCaml and later implemented in Zig, keeping the same focus on fast pixel-by-pixel visual difference checks for screenshots, photos, AI-generated images, and other highly similar image pairs.

### 采用历史

The README lists integration points beyond the bare CLI, including Node.js bindings, a persistent server mode to avoid process startup overhead, Playwright support through playwright-odiff, Cypress support through cypress-odiff, and visual regression services such as Argos, LostPixel, and Visual Regression Tracker.

Homebrew and Nix packaging make the odiff binary available outside npm-centered workflows, while the Node.js API keeps it usable inside JavaScript test suites.

### 使用方式

Users compare two image paths and optionally write a PNG diff image. In test automation, Node.js callers use compare() or ODiffServer to run repeated comparisons with options for thresholds, anti-aliasing, ignored regions, layout mismatch handling, diff overlays, and memory reduction.

### 为什么软件包爱好者会关心

odiff is interesting because visual testing often hides native image diff engines behind JavaScript test frameworks. Packaging the native binary directly lets Playwright, Cypress, and standalone CI users share one fast comparator instead of each framework carrying a separate pure-JS pixel diff path.

### 时间线

- 2020-11-04: public GitHub repository created.
- 2026-07-01: GitHub API metadata listed Zig as the primary language and MIT licensing.

### Related projects

- The README names framework adapters and services including playwright-odiff, cypress-odiff, Argos, LostPixel, Visual Regression Tracker, and OSnap.

### 来源

- <https://api.github.com/repos/dmtrKovalenko/odiff>
- <https://formulae.brew.sh/formula/odiff>
- <https://github.com/dmtrKovalenko/odiff>
- <https://github.com/dmtrKovalenko/odiff/releases>
- <https://raw.githubusercontent.com/dmtrKovalenko/odiff/main/README.md>


## 安全说明

broad file, network, media, or database tool signal.

- **Geiger 风险:** blue / 中
- broad file, network, media, or database tool signal

## 其他软件包管理器记录

- Nix - odiff: normalized package name match | nixpkgs package indexes: pkgs/by-name/od/odiff/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1


## Combined YAML source

View the package source record on GitHub. [combined/odiff.yml](https://github.com/mxcl/pkgdb/blob/main/combined/odiff.yml)


## 来源

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- external package-manager database matches
- cross-ecosystem install command graph