Fast Flag Presets
An FPS unlocker, quality modes and a lighting technology selector — tune the engine from a friendly preset manager instead of hand-editing flags.
v1.0.3 · Free · Windows 10+
Launch Roblox your way.
The fast, customizable way to launch Roblox.
Features
Everything the stock launcher should have been
BootStrap sits between you and Roblox, applying your setup cleanly on every single launch.
Multiple Instances
Run several Roblox clients side by side on one PC — ideal for juggling accounts, trading while playing, or co-op testing.
Custom Themes & Bootstrapper Styles
Restyle the launcher itself with XAML themes, or go further and build your own update window with a simple XML schema.
Mods — Fonts, Cursors & Sounds
Drop files into your Modifications folder and they are applied fresh at every launch. Classic cursors, sounds and emoji packs included.
Discord Rich Presence
Show friends what you're playing, which experience you're in and how long your session has been running.
Server History & Location
Keep track of where you've been. Revisit recent servers instantly and preview a server's region before you join.
Update Channel
Pick the deployment channel that suits how you play — stay on stable releases or hop onto fresh builds as soon as they ship.
Lightweight & Open Foundations
Built on lean, open foundations with a tiny footprint, so your launcher stays out of the way of your game.
How it works
Up and running in three steps
No configuration files to hand-edit, nothing to reverse-engineer.
1
Download & install
Run BootStrap.exe, choose an install location, and that's it. BootStrap checks the runtime it needs and manages the rest itself.
2
Make it yours
Pick presets, mods, themes and a bootstrapper style in Settings. Everything is reversible and stored outside the game files.
3
Launch
Every time you start Roblox through BootStrap, it fetches the latest build and applies your setup fresh — clean, fast and consistent.
FAQ
Frequently asked questions
Is BootStrap safe to use?
Yes. BootStrap launches the official Roblox client and never patches game code or memory. Your preferences are stored in BootStrap's own folder and applied around the game at launch time, so the install Roblox ships stays exactly as Roblox shipped it.
If Windows SmartScreen shows a prompt on first run, choose More info → Run anyway — the installer is simply not code-signed yet.
Does BootStrap modify Roblox permanently?
No. Mods such as fonts, cursors and sounds are applied per-launch: each time Roblox starts, your files are layered on top of a pristine copy of the game. Remove a mod or uninstall BootStrap entirely and Roblox is left completely vanilla.
Can I use multiple Roblox accounts at once?
Yes — enable Allow multiple Roblox instances under Settings → Integrations and you can run several clients simultaneously on the same PC. See the multi-instance guide for how it works and its limitations.
How do I uninstall BootStrap?
Open BootStrap's Settings and use the built-in uninstall option, or remove it from Windows via Add/Remove Programs → "BootStrap". During uninstall you can choose whether to keep your settings and mods for a future reinstall.
Is BootStrap free?
Completely. Every feature — presets, multi-instance, mods, themes, Rich Presence — is free with no ads, accounts or paywalls.
Ready to launch?
Grab the latest release and be playing in under two minutes.
Get BootStrap v1.0.3