macOS · for Flutter teams

Review Flutter goldens
across git history

Open any repo, walk the goldens, scrub through their commit history, and diff any two revisions pixel by pixel.

Flutter Golden Browser reviewing a pull request: side-by-side golden comparison with pixel-diff percentages per file and per device variant

Everything in one window

Timeline strip of commit chips with pixel-diff percentages between revisions

Walk the timeline

Per-file commit history as a chip strip. Follows renames, includes unstaged and staged changes, shows the pixel-diff readout between adjacent revisions.

Side-by-side zoomed pixel grid with changed pixels highlighted in red

Pixel-accurate diff

Powered by odiff, cached on disk for instant reopens. Mask or only-diff overlays, configurable thresholds, anti-alias ignoring.

Compare Mode menu: Single, Side by Side, Slider Horizontal, Slider Vertical

Three compare modes

Single revision, side-by-side (vertical or horizontal), or slider wipe. Pan and zoom synchronised across panes.

Variant chips for iphone11, phone, phone_landscape and tablet_landscape

Variant grouping

Recognises common naming (button.dark.png, button.iphone-12-pro-max.png) and folds them into a single entry with chip-based switching.

Pixel inspector

Hover any pixel for its RGBA + hex. Crosshair tracks across both panes. ⌘-click copies the hex to clipboard.

Dark themed file tree with per-golden diff percentages next to a dark golden comparison

Dark mode

The whole app follows the system appearance — tree, timeline, and diff canvas included. Goldens render on a checkerboard that stays legible in both themes.

Built for fast scanning

Keyboard-driven. Per-project preferences persisted. Zero phone-home.

Full app window with file tree, commit timeline and a slider wipe between two golden revisions

Slider compare

Wipe between A and B. Synchronised pan/zoom, checkerboard for transparency.

Review dialog with quick presets, the repository's open pull requests, and a custom A/B revision picker

PR review mode

Pick a PR, sidebar shows only the changeset, biggest pixel diffs float to the top.

Screenshots show the open-source Sharezone app's goldens (EUPL-1.2).

Install on macOS

Via Homebrew — pulls odiff as a dependency so pixel diffing works out of the box.

$ brew tap Albert221/tap

$ brew install --cask flutter-golden-browser

A license is required to use the app — sign up below or buy one outright.

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