Know what your Roblox game does in production.
Flux is a drop-in logging service for Roblox. Watch structured logs from live sessions stream into the dashboard in real-time.
- Free tier — no credit card
- Setup in under a minute
- Works in Studio & live games
Why Flux
Everything you need for a Roblox observability loop.
Built for the way Roblox games actually run — Studio, live places, RemoteEvent boundaries, and all.
Structured logs
Levels, labels, payloads, and call-site info — a readable timeline instead of print() noise.
Realtime tail
Watch info, warn, and error lines stream in seconds after they fire in your game.
Server + Client
Client logs route through a RemoteEvent and ship from the server only — keys stay safe.
Player context
Attach userId, placeId, and per-player metadata to every line so debugging is one filter away.
Fast filters
Slice by level, label, or session to find the one bad receipt in a thousand good ones.
Built for Studio
Three files, one API key. Tested with HTTP-allowed places — zero infra to run yourself.
Quick start
Wire it in under a minute.
No agent to run, no schema to design. Drop in three Lua files, paste a key, and you are logging.
01. Drop in the SDK
Download the ZIP from the docs and paste FluxShared, FluxClient, and FluxServer into Studio.
02. Add your API key
Create a project in the dashboard, copy the flux_… key, and pass it once to FluxServer.Init on the server.
03. Ship structured logs
Call FluxServer.Info / Warn / Error with a message, label, and payload — Flux batches and ships them.
-- ServerScriptService/StartFlux (Script)
local ServerScriptService = game:GetService("ServerScriptService")
local FluxServer = require(ServerScriptService:WaitForChild("FluxServer"))
FluxServer.Init("flux_•••••••••••••")
game.Players.PlayerAdded:Connect(function(player)
FluxServer.Info("Player joined", "Matchmaking", {
userId = player.UserId,
placeId = game.PlaceId,
})
end)
That is the entire setup. Add FluxServer.Warn and FluxServer.Error wherever you need them.
Pricing
Start free. Upgrade when you outgrow it.
Ready to see your first live log?
Create a project, paste your API key into the server SDK, and press Play. You will see logs in the dashboard within seconds.