timelane ☆

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Description:
Profiler for asynchronous code

Type: Cask | Latest Version: 2.0@0 | Tracked Since: Dec 28, 2025

Links: Homepage | @icanzilb | formulae.brew.sh

Category: Developer tools

Tags: swift profiler async combine xcode debugging

Install: brew install --cask timelane

About:
Timelane is a visual profiling tool designed to inspect the performance of asynchronous code in Swift and Combine frameworks. It visualizes the timing and concurrency of subscriptions, events, and completions, helping developers identify bottlenecks and improve efficiency. The tool integrates directly with Xcode's Instruments for a seamless debugging workflow.

Key Features:

Visualizes asynchronous operations and timelines
Integrates with Xcode Instruments
Supports Combine and Swift Concurrency
Identifies performance bottlenecks

Use Cases:

Debugging slow or complex Combine pipelines
Analyzing concurrency in Swift async/await code
Optimizing application responsiveness

Alternatives:

Xcode Organizer – Built-in tool for general app metrics, but lacks specific async timeline visualization.
React Native Debugger – Focuses on JavaScript state and network inspection, not native Swift async profiling.

Version History

Detected	Version	Rev	Change	Commit
Sep 15, 2025 1:06pm	2.0	0	VERSION_BUMP	4e0cb92c
Jul 10, 2024 1:18pm	2.0	0	VERSION_BUMP	ebef6a82