---
title: "Roblox Thumbnail & GFX Guides"
description: "Free guides for Roblox creators: every thumbnail and icon dimension, how to make thumbnails with your real avatar, GFX without Blender, and where to get backgrounds."
url: "https://www.renderbux.com/guides"
section: guide
updated: 2026-09-17
keywords: ["roblox guides", "roblox gfx", "roblox thumbnail"]
summary: "Renderbux publishes five free reference guides for Roblox creators: every Roblox image dimension, how to make a thumbnail with your real avatar, how to make GFX without Blender, where to find free GFX backgrounds, and when AI thumbnail generators beat real avatar renders."
---

# Roblox Thumbnail & GFX Guides

Practical guides for making better Roblox thumbnails, game icons and GFX, written by the team behind Renderbux.

- [Roblox Thumbnail Size Guide (Every Dimension)](/guides/roblox-thumbnail-size) — Reference, 5 min. Every Roblox image dimension in one table: game thumbnails, icons, banners, gamepasses and YouTube.
- [How to Make a Roblox Thumbnail (With Your Real Avatar)](/guides/how-to-make-a-roblox-thumbnail) — How-to, 6 min. Pose your actual avatar, light the scene, and export a click-worthy thumbnail in minutes.
- [How to Make Roblox GFX Without Blender](/guides/roblox-gfx-without-blender) — How-to, 5 min. Skip rig imports and node editors; make clean Roblox GFX entirely in your browser.
- [Roblox GFX Backgrounds: Free Sources & How to Use Them](/guides/roblox-gfx-backgrounds) — Reference, 5 min. Where to find free GFX backgrounds, which styles work, and how to composite your render.
- [AI Roblox Thumbnails vs Real Avatar Renders](/guides/ai-roblox-thumbnails-vs-real-renders) — Comparison, 5 min. Honest comparison of AI thumbnail generators and real-rig 3D renders.

---

Source: https://www.renderbux.com/guides · Renderbux · Independent tool, not affiliated with Roblox Corporation.