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Quixel Megascans Scripts

A collection of Python scripts to facilitate claiming and downloading the entire Quixel Megascans collection before it becomes fully paid in 2025.

Requirements

  • Python 3.12 or higher (3.11 and prior do not work!)
  • requests (pip)
  • tqdm (pip)

Getting your Quixel Token

Firefox

The most reliable and easy way to get your Quixel token in Firefox I've found:

  1. Go to https://quixel.com/ and log in.
  2. Press Ctrl+Shift+I to open the Web Developer Tools.
  3. Click on the Storage tab.
  4. Open the Cookies dropdown in the left sidebar, and select the https://quixel.com option.
  5. Click on the auth cookie in the main window.
  6. Right-click and copy the token (not refreshToken) in the Parsed Value section in the right sidebar.
  7. You're done! Any script that uses a token will parse the string you copied correctly, so don't worry if there is extra formatting. If you put the token in without any formatting, that should work as well.

Chrome

Similar to the Firefox instructions:

  1. Go to https://quixel.com/ and log in.
  2. Press Ctrl+Shift+I to open the Developer Tools.
  3. Click on the Application tab. If you don't see it, click the "More tabs" button next to the list of tabs and select it from there.
  4. Open the Cookies dropdown in the left sidebar, and select the https://quixel.com option.
  5. Click on the auth cookie in the main window.
  6. Click "Show URL-decoded" on the bottom pane and copy the entire Cookie Value, refresh token and all.
  7. You're done! Any script that uses a token will parse the string you copied correctly, so don't worry if there is extra formatting. If you put the token in without any formatting, that should work as well.

Instructions

Metadata Creation

Each script (except get_all_basic_asset_metadata.py) requires a file called asset_metadata.json to be present alongside them.

This file is initially created using get_all_basic_asset_metadata.py with the basic, barebones metadata (name and asset ID) for each asset from Quixel.

Then, using get_all_complete_asset_metadata.py, the full metadata for each asset is requested and saved to asset_metadata.json - when this process finishes, the file is about 1.5GB in size.

Provided Metadata

For convenience, I've compressed the basic and complete stages of asset_metadata.json into separate .tar.zst files. Zstandard compression is pretty awesome, so I'm able to just provide these in the repository with zero compromises.

If you're on Windows, something like 7-Zip-zstd should be able to decompress these.

Claiming Assets

I'd wager most people who are here are most interested in mass-claiming all assets to their Quixel account. To do this, run claim_all_assets.py with either a basic or complete asset_metadata.json file present. There is no difference in functionality.

Downloading Assets

If you want to download all Quixel assets, run download_all_assets.py with a complete asset_metadata.json file in the directory you want to download assets to. It will not work with basic metadata.

Future Features

  • Full resume functionality for get_all_basic_asset_metadata.py and get_all_complete_asset_metadata.py. This would also enable new assets to be added to the metadata if and when they appear.
  • Switch from tqdm to rich to support things like a fancy spinner during checksum calculation and rich text.
  • Better error handling across the board

Why is there no initial commit history?

I initially developed these scripts in a private branch while I did silly things like committing my Quixel tokens to the branch. I also wanted to get these scripts in a decent enough state before releasing them, which did take a bit.

Notice

Please note that these scripts have been developed with an emphasis on archival purposes, so scripts like download_all_assets.py may not do what you want/expect at first. That script is straight and to the point - it downloads all assets to a single directory, and doesn't bother with things like asset categories. There is also (intentionally) no limit on retries.

Removed Assets

A few assets have been removed from Quixel since I initially created these scripts. If you still have these assets in your asset_metadata.json file, you can use the remove_asset_from_metadata.py script to remove them. The latest versions of the basic and complete stages of asset_metadata.json do not have these assets. My thanks to @DR-Mello for getting me the IDs for the last 4 deleted assets.

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