Kios FFlags

kioflagz.com

Live · Free & Premium FastFlags

Make Roblox run smoother, faster, cleaner

A curated hub of copy-paste FastFlags for higher FPS, lower ping, and lighter visuals — plus premium all-in-one packs and free custom fonts for Bloxstrap & Fishstrap.

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FPS after tuning

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Read before using: These edit local Roblox client settings only — they don't touch game servers and give no gameplay advantage over other players, similar to changing in-game graphics quality manually. Roblox has increasingly restricted which FastFlags can be modified locally (an allowlist rolled out from late 2025), so some flags may have no effect depending on your Roblox version. Test one category at a time; if anything looks broken, remove the flag or reset to defaults. Kios FFlags is a fan-made reference site, not affiliated with or endorsed by Roblox Corporation.

Use at your own risk: Modifying client settings is done entirely at your own discretion. Kios FFlags, kioflagz.com, and its operator are not responsible for any account action, suspension, ban, loss of data, or other consequence that may result from applying any flag or content on this site, whether from Roblox's systems, a third-party bootstrapper, or any bug caused by the flags themselves. You are solely responsible for what you apply to your own client.

How to apply a flag

Four quick steps from copy to running Roblox.

Get a FastFlag editor

Most people use a bootstrapper like Bloxstrap or Fishstrap, which has a built-in "FastFlags" settings tab.

Copy a flag below

Hit the copy icon on any card — it copies the flag in the exact "Name": "Value" format the editor expects.

Paste & save

Paste into the editor's JSON field (or add name/value in two boxes), then save and relaunch Roblox.

No bootstrapper?

Advanced users can hand-edit ClientAppSettings.json in the Roblox version folder for the same effect.

Free FastFlags

Community-tested flags, organized by category. Copy one, a whole category, or everything.

Premium Packs

🎄 On holidays, everything is 10% off — applied automatically at checkout. Delivered to your email.

★ Premium Pack

FPS + Ping + Delay All-in-One

A single curated pack that combines 20+ hand-picked FastFlags tuned together for higher FPS, lower ping, and reduced input delay — set up as one profile instead of you piecing them together. Delivered to your email after purchase.

⚡ 20+ tuned flags 🎯 FPS focused 📶 Lower ping 🖱️ Reduced input delay 📩 Emailed to you

~~$9.99~~$5.99

one-time · manual delivery

⭐ Best Value — Everything

Kios Flag Pack

The complete all-in-one bundle. Every flag category on the site — bloom & effects, graphics quality, shadows, FPS, ping, and input delay — tuned together into one profile, plus the custom font picks. The whole thing in one file. Delivered to your email after purchase.

✨ Bloom & effects 🎨 Graphics quality 📶 Ping 🖱️ Delay 🔤 Fonts included 📦 Everything in one

$19.99

one-time · manual delivery

Custom Fonts

Swap Roblox's default font. All free & open-source (Google Fonts) — download, then apply in your bootstrapper.

How to apply a custom font: In Bloxstrap or Fishstrap, open Appearance → Custom Font (or Integrations → Custom Font), click Choose file, and select the .ttf you downloaded. Save and relaunch — the whole game UI uses your font. To undo, clear the custom font in the same menu.

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