Adjust fan, overlay, power, and Steam Controller settings on Windows with Steam Deck Tools.
Steam Overlay Customization
Follow instructions for customizing the Steam overlay browser through this guide.
About Steam Overlay Customization
This GitHub Gist guide covers customizing the Steam overlay browser, which uses a modified Chromium build with many familiar extensions and settings. It assumes the Steam client installed and logged in plus basic browser understanding. Modifying the browser is not officially supported by Valve and is done at own risk.
Pricing is not clearly stated.
Key features
- Open Steam client links in a new window with middle-click or Ctrl-click
- Install extensions from the Chrome Web Store
- Load unpacked extensions manually with Developer mode
- Change the default search engine
- Change the start and new tab page with a Redirector workaround
Steam Overlay Customization at a glance
- Category
- Gaming › Game Utilities & Launchers
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Details verified
- Oct 23, 2026 · Official source
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Steam Overlay Customization alternatives
Tools and sites you could use instead, ranked by how closely they match.
Follow a step-by-step guide to installing homebrew and modifying settings on a Nintendo DSi.
SpecialK provides PC game modification tools for customizing supported titles.
THGL provides in-game overlays, live position tracking, and interactive maps for more than 20 games.
Free
24 alternatives
3DS Hacks Guide provides instructions for installing custom firmware on Nintendo 3DS devices.
Wii Hacks Guide provides instructions for modifying Wii, Wii vWii, and Wii mini systems.
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