Celestial is a FastFlags manager that swaps cursors, fonts and skyboxes, drops in a custom crosshair, a keystroke overlay and Spotify now-playing — and keeps everything working on any launcher, even after updates.
A fast, clean toolbox for tweaking Roblox exactly how you like it.
Swap in any cursor or font you like. Celestial re-applies them on every launch so they never get lost.
Rebind shift-lock to whichever key suits you best. Works on any keyboard layout.
A clean, always-centered reticle. Tune size, gap, thickness and color with a live preview.
Minecraft-style WASD and space captures with a rolling clicks-per-second counter.
A minimal overlay showing the song you're on — artist, title and all.
Swap the Roblox sky instantly, with an automatic texture-cache fix applied.
Fishstrap, Bloxstrap, forks or mainline — detected automatically by install shape.
Mods live in the launcher's Modifications folder, so a version refresh never wipes your setup.
No accounts, no telemetry. Everything happens locally on your machine.
A peek at a few of the overlays and effects in-game.
Perfectly centered, click-through, fully customizable. Never lower again.
Bottom-left WASD capture with live CPS. Great for clips and streams.
A clean now-playing widget that follows the song you're on.
Swap the sky in one click — sunsets, nightscapes and more, cache-fix included.
One single file. No installers, no runtime downloads, no accounts.
SmartScreen warning? See the FAQ below.
More info → Run anyway, or add an exclusion in Windows Security.
Modifications folder.