Roblox Fast Flags Database
Search all 28,117 Roblox Fast Flags (FFlags) we know about — value type, category, and which verified lists use them. 8073 have a written explanation so far. New to Fast Flags? Start with the guide.
6,209 stable21,908 potentially unstableLast updated
Roblox doesn't publish documentation for these flags, so nothing here is official. Some descriptions are hand-written from names, categories and real-world use; the rest are written by a model from the flag name alone — it has no source to look anything up in, so treat any description as a reasonable hint and verify before relying on it.
Stable vs. potentially unstable
Stable flags come from the curated set that's known to be useful and safe to apply. Potentially unstable flags were pulled in from the full engine dump — they're real, but untested here and may do nothing, break rendering, or stop the client launching. Try those one at a time.
Every known FastFlag is in this list.
Stable and potentially unstable together cover the full set. The stable portion comes from Masterstrap/All-Fast-Flags, which covers the flags actually worth using as a player. The rest is everything else Roblox exposes, tracked by MaximumADHD/Roblox-FFlag-Tracker. See the full methodology.
Roblox adds and removes flags with most updates, so this is a snapshot rather than a live feed — check recent changes or the trackers above if you're after something brand new.
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