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Manifest Downloader GUI

A GUI for downloading Riot manifest files. Grab old League patches, PBE builds, or missing assets without the command line.

Manifest Downloader GUI is a desktop app by dazashu that wraps Morilli's command-line ManifestDownloader in a window with two tabs. You use it to download Riot manifest files and then pull the game assets they describe.

A manifest is a file Riot uses to describe a game build: which files exist, where they live, and what version they are. With the right manifest you can download an older League patch, a PBE build, or one specific asset, without waiting for the live client to do it.

Download the latest release

What it does

  • Download manifests from Riot's public repositories in one click.
  • Browse a local library of manifests you've already downloaded.
  • Pull the actual game content described by a manifest (the files inside the build).
  • Set download options through a settings panel (paths, filters, threads).
  • Keep everything portable. App data lives in LocalAppData, so your install folder stays clean.

It supports the same games Morilli's CLI does. That covers League of Legends, Legends of Runeterra, Valorant, and other Riot titles that use manifest files.

What you need

  • Windows 10 or 11 (64-bit). No Mac or Linux build.
  • .NET 8.0 Desktop Runtime. The app will not start without it.
  • About 1 GB of free disk space for small jobs. Full League builds need 20 to 30 GB.
  • A decent internet connection. You're pulling from Riot's CDN.

Install

  1. Open the releases page.
  2. Download ManifestDownloaderGUI.exe from the latest release.
  3. Move the .exe to a folder you can find again. (For example, C:\Tools\ManifestDownloader\.)
  4. Double-click ManifestDownloaderGUI.exe. The app opens to the Downloader tab.

If Windows shows a SmartScreen warning, click More info, then Run anyway. The app is open source and unsigned, which is normal for community tools.

How to use it

Download a manifest

  1. Open the app. The Downloader tab loads by default.
  2. Pick the game and channel you want (for example, League of Legends live or PBE).
  3. Click the manifest you want from the list. The download starts.
  4. Wait for the progress bar to finish. The manifest moves to your local library.

Download the game content

  1. Switch to the Library tab.
  2. Click the manifest you just downloaded.
  3. Check the download settings (output folder, filters, threads).
  4. Click Start. The app pulls the files from Riot's CDN.
  5. Wait. A full League build can take 30 minutes or more, depending on your connection.

When it finishes, your output folder holds the raw game files: .wad, .bin, textures, and the rest.

Filter what you download

You usually don't want the whole build. The settings panel lets you narrow it down:

  • Filter by path. Only pull files whose path matches a pattern (for example, *champion*).
  • Filter by language. Skip voiceover packs you don't need.
  • Set thread count. More threads is faster, but heavy on your connection.

When you actually need this

Most modders never touch manifests. The live League client already keeps you up to date, and tools like Flint extract what you need from the current install. Reach for Manifest Downloader GUI when:

  • You want an older patch. A skin built on patch 14.3 may break on 14.10. Pulling the 14.3 files lets you check the source mesh or texture.
  • You want PBE files. Public Beta Environment builds ship new champions and skins before live. The manifest is how you grab them without installing the PBE client.
  • A specific asset is missing locally. Sometimes the live client doesn't ship every file (cut content, region-specific assets). A manifest lets you pull just that file.
  • You're working on a different Riot game. Legends of Runeterra and Valorant use the same manifest format.

For day-to-day skin work, stay on Flint or LtMAO. Use this when one of the cases above hits.

Difference from the auto-patch flow

The League client patches itself. So does Celestial when a skin needs an update. Both are automatic and you don't pick what they pull.

Manifest Downloader GUI is the opposite: you choose the build, you choose the files, you trigger the download. It does not patch your installed League. It does not change your live game. It writes files to a folder you pick, and that's it.

Troubleshooting

The app won't start

Install the .NET 8.0 Desktop Runtime and try again. The app needs it to run.

Downloads are very slow

Lower the thread count in settings, or check whether your network or VPN is throttling the connection. Riot's CDN is fast in most regions.

The download finishes but the folder is empty

Check your path filter. If you set a pattern that doesn't match any files, the run completes with zero files. Clear the filter and try again.

A manifest fails to download

Some older manifests get removed from Riot's public sources. If a manifest in the list errors out, pick a different version or check Morilli's saved-manifests repo for an archive.

Credits

  • GUI by dazashu.
  • CLI core by Morilli. The GUI wraps Morilli's tool, so all the actual downloading logic comes from there.

Both projects are MIT-licensed and open source.

Edit on GitHub →

Wwise

Pro audio middleware by Audiokinetic. Only needed if you're rebuilding full League soundbanks from scratch.

Maya

Maya is an industry standard 3D Software

On this page

What it doesWhat you needInstallHow to use itDownload a manifestDownload the game contentFilter what you downloadWhen you actually need thisDifference from the auto-patch flowTroubleshootingThe app won't startDownloads are very slowThe download finishes but the folder is emptyA manifest fails to downloadCredits
Written by the Divine Skins community. Open source on GitHub.