I'm Sem Postma, the developer of Cast to Sonos. I built the extension in 2022 to get browser audio onto my own Sonos speakers after Chromecast support disappeared, and have maintained it ever since.
Articles by Sem Postma
Better Free Audio Quality and Updated Streaming Plans
Cast to Sonos now streams free audio at 192 kbps, with 256 kbps stereo on the Stereo plan and 320 kbps stereo on Hi-Fi Premium. Here's what changed and why.
A Rebuilt Streaming Server: Zero-Downtime Updates and Steadier Playback
Cast to Sonos's streaming backend has been rebuilt from the ground up, with zero-downtime deploys, leaner servers and a live status page. Here's what changed and what it means for your playback.
Cast to Sonos: The Chromecast Alternative for Sonos
Sonos doesn't support Chromecast, but you can still cast a Chrome tab to your speakers. Cast to Sonos is the free Chromecast alternative for Sonos.
How to Install Cast to Sonos on Vivaldi Browser
Learn how to add the Cast to Sonos extension to Vivaldi browser and stream audio from any tab to your Sonos speakers.
How to Install Cast to Sonos on Brave Browser
A step-by-step guide to installing the Cast to Sonos extension on Brave browser using the Chrome Web Store.
Sonos Adds Third-Party Session Removal Feature
Sonos has added a new feature allowing users to remove third-party sessions and sign out of all devices, giving users more control over their connected integrations.
Addressing Security Concerns About Cast to Sonos
A detailed response to community concerns about Cast to Sonos's OAuth implementation, security practices, and architectural decisions.
CSP, Audio Worklet Error on YouTube and Other Sites is Now Fixed
Cast to Sonos v1.17 fixes compatibility issues with YouTube and other websites that have strict security policies.
Fix Sonos Audio/Video Delay When Watching Videos
Eliminate Sonos lip-sync lag with automatic frame sync in Cast to Sonos. Here's how it works and how to enable it.
Improved Performance with New Carbon-Neutral Hosting
Learn about Cast to Sonos's upgrade to carbon-neutral hosting with dedicated servers in Europe and the US for reduced latency and improved streaming performance.
How to Play YouTube on Sonos from a PC or Laptop (2026)
Stream YouTube to your Sonos speakers from any computer in seconds with the free Cast to Sonos Chrome extension. Step-by-step guide.
How to Listen to Podcasts on Sonos from Your PC
Play any podcast on your Sonos speakers straight from your browser. Quick setup with the free Cast to Sonos Chrome extension.
How to Play Local Audio Files on Sonos from Windows
Stream local audio files from your PC to Sonos in a few clicks with the Cast to Sonos Chrome extension. No extra software.