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brew install odiffprovider-native install command
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Install odiff with Homebrew
Very fast SIMD-first image comparison library (with nodejs API). Version 4.5.0 via Homebrew; verified 2026-07-23.
install
Additional install commands
overview
Package summary
Very fast SIMD-first image comparison library (with nodejs API)
Project links
Commands and aliases
- odiff
history
Project history and usage
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.
Project history
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.
Adoption history
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.
How it is used
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.
Why package nerds care
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.
Timeline
- 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.
Sources
security posture
Risk level: blue
broad file, network, media, or database tool signal.
Risk classifier
blue risk · medium confidence · tool
Why
- broad file, network, media, or database tool signal
Signals
- text:image
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
odiff | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version4.5.0
manager updated2026-07-23
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:odiff |
|---|---|
| Version | 4.5.0 |
| Package manager | Homebrew |
| Homepage | https://github.com/dmtrKovalenko/odiff |
| Repository | https://github.com/dmtrKovalenko/odiff |
| Last updated | 2026-07-23T03:37:26Z |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- curated package history
- pkgdb category and tag curation