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ClientAppSettings.json

The local JSON configuration file inside `ClientSettings\ClientAppSettings.json` that applies FastFlags to the Roblox client.

Glossary • Updated 17 October 2026 • 1 min read

Download for Windows

Bloxstrap requires the Microsoft .NET 6 Desktop Runtime to be installed

Frequently asked questions • Release notes

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What ClientAppSettings.json means in Bloxstrap

The local JSON configuration file inside `ClientSettings\ClientAppSettings.json` that applies FastFlags to the Roblox client.

Bloxstrap generates and updates `ClientAppSettings.json` automatically inside the active Roblox version folder before launching the player.

Where you encounter this in the app

Bloxstrap wraps low-level Roblox configuration files, log watchers, and registry handlers into a clean WPF settings menu so you rarely need to edit raw files by hand.

Download the latest Windows installer at /download or browse the Engine and Setup hubs for step-by-step guides.

Frequently asked questions

What is ClientAppSettings.json?

The local JSON configuration file inside `ClientSettings\ClientAppSettings.json` that applies FastFlags to the Roblox client. Bloxstrap generates and updates `ClientAppSettings.json` automatically inside the active Roblox version folder before launching the player.

Does this modify the Roblox game executable?

No. Bloxstrap only interacts with official configuration files, asset directories, and log files on disk.

Get more out of Roblox

Bloxstrap is an alternative launcher for Roblox with extra features and mods.

Download for Windows

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