Ultimate Thumbnails: Instant Asset Previews

📧 Support | 🌐 Website | 💬 Discord

Ultimate Thumbnails is a powerful Unity Editor extension that upgrades Unity’s default asset thumbnails with high-quality, properly lit, and fully customizable thumbnails.

It automatically generates enhanced, accurate icons for your 3D Models, Sprites, GUI, and Particle Effects, ensuring your Project window looks clear, organized, and professional.

⚡For maximum productivity, use together with → Ultimate Preview Window

🚀 What It Fixes and Improves

• Automatic Thumbnail Generation

Automatically generates thumbnails for 3D Models, Sprites, Particle Systems, and UI elements as soon as they’re imported or modified.

• Adds Missing thumbnails:

Automatically Adds proper thumbnail support for Particle Systems, UI elements, and Sprites, replacing Unity’s empty or misaligned previews.

• Poorly lit and unclear default icons:

Unity’s default thumbnails often appear dark or generic. Ultimate Thumbnails fixes this with customizable lighting, camera angles, and background options.

• GUID-based and fully reliable:

Thumbnails are linked using asset GUIDs which means you can freely move or rename your assets without breaking their thumbnails, everything stays perfectly in sync.

• No thumbnail customization in Unity:

Unity doesn’t let you control thumbnail lighting, camera, or resolution—Ultimate Thumbnails adds this capability

• Sprites and UI always face the camera:

No more weird-angled 2D thumbnails—Ultimate Thumbnails automatically aligns sprites and UI for perfect visibility.

• Enhanced list and grid view icons:

View your generated thumbnails in both Grid View and List View modes directly inside the Project window.

• Quick generation and cleanup:

Easily generate, clear, or refresh icons for individual or multiple assets with right-click context menu actions.

🧩 Key Features

• Automatic thumbnail generation
• Enhanced 3D model thumbnails with better lighting
• Improved sprite thumbnails with correct camera alignment
• Thumbnails for GUI elements
• Thumbnails for particle effects
• Thumbnails visible in list view mode
• Thumbnails visible in the object picker window
• Customization options for lighting, camera, size, background color and more
• Supports both one-column and two-column layouts
• Easy-to-use context menu actions
• thumbnail background color customization
• Compact toolbar for quick access to key controls
• And more...

👍 Compatible with other assets. Ultimate Thumbnails has been tested with:

• vFolders 2
• Rainbow Folders 2
• Ultimate Editor Enhancer

✅ Supported Unity Versions

• Unity 6 — Fully supported (all versions)
• Unity 2022, 2023 are Fully supported.
• Unity 2021: Requires 2021.2.0f1 or newer.
• Unity 2020: Requires 2020.3.20f1 or newer.

👉 Other Assets

• Ultimate Preview Window
• Package Manager Enhancer
• Ultimate Preview Animator Add-on

📧 Support & Feedback

• 🌐 Website: https://voxellabs.in
• 💬 Join our Discord: https://discord.gg/EsJ2zQx9Dr
• 📩 Support/Feedback: [email protected]

Crafted with ❤️ by VoxelLabs.

Speed up your workflow and boost productivity by 10x. Ultimate Thumbnails makes Unity’s prefab thumbnails look the way it should. ✨