A Roblox launcher for Windows with a whole app around it,
and a browser extension that brings it to roblox.com.
Download for Windows · Website extension · Safe by design · Privacy
Play your way. Website Play buttons and roblox:// links open Sentinelstrap. It installs and updates Roblox from Roblox's own servers, applies your mods, FastFlags and launch screen, and starts the game with the account you picked.
Every account, one click. Add accounts through Roblox's own sign-in. Give each one its own FPS cap, graphics, volume and sensitivity. Launch a whole group into the same game and their windows go back where you left them.
Find the right server. Sort by players, show free slots only, join the busiest or emptiest server, or type a username and join them. Server cities through RoValra if you turn it on.
Keep every window in reach. Live previews of each Roblox window with CPU, memory and volume. Rejoin after a disconnect, quiet the windows you aren't using, and look back at every server you visited.
Make it yours. 13 looks (Halloween included) with a living background and snow, shooting stars or bats, your own colors and fonts, picture or video wallpapers, a widget Home you arrange by dragging, launch screens that show the game you're joining (or look like the classic Roblox launchers), and custom cursors and fonts inside Roblox.
Find anything. Ctrl+K searches commands, settings, games, accounts, friends and servers.
The Sentinelstrap extension for Chrome, Edge, Brave, Opera and Vivaldi adds a panel to roblox.com:
- Games: live player count, a server browser (smallest, largest, random, friends here, your recent servers), badges with rarity, passes, developer products and your playtime.
- Profiles: all their games, communities, outfits, badges, mutual friends, past names and private notes only you see.
- You: friends online with Join, your games with one-click Play, search, and who unfriended you.
- Items and trades: resale charts, optional Rolimons values and a trade panel that shows who comes out ahead.
- Play as any saved account from a game page, a game tile or a right-click.
- Site themes: live Halloween, Aurora, Synthwave and Nebula themes with bats, snow or shooting stars, eight still ones, or your own colors and picture.
Get it from the Chrome Web Store (works in Chrome, Edge, Brave, Opera and Vivaldi), or from Sentinelstrap: Settings → Connections → Roblox website → Set up. It connects to the app by itself.
- Download Sentinelstrap-Setup-x.y.z.exe from the latest release.
- Run it. It installs for your Windows user only, no administrator needed. If the .NET 10 Desktop Runtime or WebView2 is missing, setup links Microsoft's official downloads.
- Answer a few questions in guided setup. Sentinelstrap keeps itself up to date from there.
Windows SmartScreen can warn about new apps that aren't code-signed yet. Choose More info → Run anyway if you trust the download.
Coming from Bloxstrap, Fishstrap or Voidstrap? Settings → Getting started → Import from Bloxstrap/Fishstrap brings over your allowed FastFlags, mods, launch screens and companion apps.
- No analytics and no tracking.
- No client patching, no injection, no anti-cheat bypass. Only FastFlags on Roblox's own allowlist.
- Accounts are added through Roblox's sign-in and kept encrypted on your PC. No passwords are saved, and sessions are only ever sent to Roblox.
- Server cities (RoValra) and item values (Rolimons) stay off until you turn them on, and never get your account.
- The extension never buys, chats, or sends or accepts trades. Decline and Cancel only happen when you click and confirm.
Windows 10 or 11 (64-bit), the .NET 10 Desktop Runtime and the Microsoft Edge WebView2 Runtime. Setup helps with both.
Sentinelstrap is not affiliated with or endorsed by Roblox Corporation.