LogJSON v1.0.5 — Initial public release

The first public release of LogJSON — a JSON viewer designed for log files. It finds JSON payloads embedded in arbitrary text and gives each one a Monaco editor and a folding tree view.

Install

Download LogJSON-1.0.5-universal.dmg below, open it, drag LogJSON into /Applications. The build is signed with a Developer ID and notarized by Apple — no Gatekeeper warning, no xattr workaround needed.

Universal binary: runs natively on Apple Silicon and Intel Macs.

Highlights

Core feature

• Character-by-character JSON scanner detects every {…} and […] block in arbitrary text
• Per-block prettify (Cmd+Shift+P) and minify (Cmd+Shift+M) — surrounding log lines stay untouched
• Cursor-aware navigation: moving the cursor in the editor auto-selects the JSON block under it
• Multi-window support (Cmd+N)
• Drag & drop log files into any window

Security

• contextIsolation, sandbox: true, nodeIntegration: false on every window
• Strict Content-Security-Policy (no inline scripts, no remote sources)
• Reply-channel IPC pattern replaces executeJavaScript
• Save validates content type and caps size at 100 MiB
• No telemetry, no auto-updater, no network calls at runtime

Offline

• Monaco Editor and Feather Icons vendored locally — works without an internet connection

Quality

• 29 unit tests (Vitest) for the JSON scanner
• 6 end-to-end tests (Playwright on Electron)
• GitHub Actions CI on macOS

macOS integration

• Unified titlebar with traffic lights
• Proxy icon (Cmd-click the title to reveal in Finder)
• Dirty-dot indicator in the close button
• Follows system light/dark appearance

Requirements

• macOS 10.13 or later
• Apple Silicon or Intel (universal binary)

Source

Built from commit d93deea on main.

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Built with vibe-coding — every line read, exercised, and signed off by a human.