LatencyLab iconLatencyLab
Get LatencyLab

Download LatencyLab

Simulate your architecture's latency before you build it: LatencyLab runs explicit models of your software architecture (tasks, events, queues, contention) thousands of times, to show where users would wait and why, before the code exists.

Pick your platform and you have the newest release. Free and GPL-3.0 + LGPL-3.0 with no cloud and no account. Your models and results stay local on your machine; the desktop app's only outbound call is an anonymous daily check of GitHub releases for a newer version, which you can also run from Help > Check for Updates.

Latest release
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Windows

Windows 10 or 11, 64-bit

Download for Windows

Setup program (.exe)

Windows may show a SmartScreen warning when you run this: here's why.

Run the setup: it installs per-user, so no administrator rights are needed.

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macOS

Apple Silicon (M1 or later)

Download for macOS

Disk image (.dmg)

Open the DMG and drag LatencyLab into Applications.

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Linux

Any distribution with Flatpak

Download for Linux

Flatpak bundle (.flatpak)

Install with flatpak install latencylab.flatpak.

What's new in this release  路  All releases  路  Source on GitHub

The rest of the site

Where to next

Every page answers one question.

Overview Who it's for The application Using it Reading the output Why GitHub