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
How to Connect to Your Sonos Speaker (Setup & Casting)
How to connect to your Sonos speaker — set it up on your Wi-Fi, then play audio from any device, including casting any browser tab from your computer.
The Best AirPlay Alternative for Sonos (Any Device)
No AirPlay on Windows, Android or Chromebook? Here's the easiest AirPlay alternative for Sonos: stream audio from any browser tab to your speakers for free.
How to Listen to Audiobooks on Sonos from Your PC
Play audiobooks through your Sonos speakers straight from your browser. Here's how to stream web-based audiobooks to Sonos for free with Cast to Sonos.
How to Stream Twitch Audio to Sonos
Send Twitch stream audio to your Sonos speakers from Chrome with the free Cast to Sonos extension, with automatic sync so chat and video stay matched.
How to Play SoundCloud on Sonos from Your Browser
Stream SoundCloud tracks, mixes, and DJ sets to your Sonos speakers straight from Chrome with the free Cast to Sonos extension. Quick step-by-step guide.
How to Play Plex Audio on Sonos from Your Browser
Stream music and audio from your Plex server to Sonos speakers straight from Chrome with the free Cast to Sonos extension. Step-by-step guide.
How to Play Amazon Music on Sonos from a PC or Laptop
Sonos supports Amazon Music natively, but if you'd rather cast from the web player, here's how to stream Amazon Music to Sonos from your browser.
AirPlay to Sonos from Windows: The Easy Way
Windows has no native AirPlay, but you can still stream browser audio to your Sonos speakers from a Windows PC. Here's the easy way with Cast to Sonos.
Cast to Sonos on Android: What Works Today
Can you cast to Sonos on Android? Here's an honest look at what works today, why the Chrome extension is desktop-only, and your best options right now.
How to Stream Any Browser Audio to Sonos
Cast audio from any Chrome tab to your Sonos speakers, music, video, radio, podcasts and more. Here's how to stream browser audio to Sonos for free.
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.
Sonos + Home Assistant: Automate & Cast Audio
Want Sonos in your Home Assistant automations? Here's what works today via the Castbreeze Sonos MCP server, and how to get notified when the HA integration lands.
How to Play Announcements & Chimes on Sonos for Stores
Trigger announcements, chimes and alerts on your Sonos speakers — automate store paging and notifications with the Castbreeze Sonos MCP server.
How to Play Licensed Background Music on Sonos for Business
Play background music on Sonos in your shop, café or restaurant the legal way — cast a licensed web player, or stream a commercial music URL on repeat.
Control Sonos From an AI Agent (MCP Server Guide)
Connect Sonos to Claude or any MCP client with the Castbreeze Sonos MCP server. Let an AI agent play radio, audio clips and chimes on your speakers.
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.