Bloxstrap Fast Flags JSON Config

Roblox FastFlags JSON configs allow players to customize hidden settings inside the Roblox client. One of the most popular uses of FastFlags is removing or disabling textures to increase FPS and improve performance on low-end PCs.

In this guide, we’ll cover a powerful Bloxstrap Fast Flags JSON config that not only includes no textures mode but also unlocks several experimental gameplay mechanics such as wallhop, desync, and wall glide.

Below is the Blostrap Fast Flags JSON config code:

{
  "DFIntAssemblyExtentsExpansionStudHundredth": -50,
  "FFlagSimIslandizerManager": false,
  "DFIntS2PhysicsSenderRate": 1,
  "DFFlagDebugVisualizationImprovements": true,
  "DFFlagDebugVisualizeAllPropertyChanges": true,
  "DFFlagDebugVisualizerTrackRotationPredictions": true,
  "DFFlagDebugEnableInterpolationVisualizer": true,
  "FIntDebugTextureManagerSkipMips": 8,
  "DFIntUnstickForceAttackInTenths": -4
}

What is a FastFlags JSON Config?

A FastFlags JSON config is a simple text file written in JSON format that contains different Roblox flags and their values. When applied through Bloxstrap or similar tools, these flags can change how the Roblox client behaves, ranging from performance adjustments to physics exploits.

Features in This Config

1. Infinite Wallhop / Non-Clip

By modifying DFIntAssemblyExtentsExpansionStudHundredth, the player’s collision boundaries are altered. This makes it possible to pass through certain objects or perform wallhop-style glitches.

2. Physics Desync

Disabling FFlagSimIslandizerManager and reducing the DFIntS2PhysicsSenderRate results in physics desynchronization. This can cause unusual movement effects and allow for new mechanics not normally achievable in the game.

3. Wall Glide

The flag DFIntUnstickForceAttackInTenths is set to a negative value, which allows smoother or glitched movement along walls, creating a “wall glide” effect.

4. No Textures (Performance Boost)

With FIntDebugTextureManagerSkipMips set to 8, Roblox skips loading textures. This reduces visual quality but can significantly improve frame rates on lower-end systems.

5. Debug Visualizers

Several flags in the config enable internal debugging tools. These provide visualization of property changes, rotation predictions, and interpolation, which can be useful for understanding Roblox’s physics engine.

Why Use This Config?

This single JSON config combines multiple modifications into one file. Players who want to test all effects at once can use it directly, while those who prefer specific features can separate the values into different configs.