What should I use for WebRTC in web and mobile?

If you want one practical choice that works well for both web and mobile, use WebRTC itself with a platform-specific wrapper:

Best default

• Web: native browser WebRTC APIs
• Mobile: a WebRTC SDK/wrapper for iOS/Android, or a cross-platform wrapper if you use React Native / Flutter

Common options

1) Native WebRTC APIs

Best if:

• You’re building a web app only, or
• You’re comfortable managing platform-specific code

Use:

• Browser RTCPeerConnection, getUserMedia, MediaStream
• iOS/Android native WebRTC libraries

2) React Native

Best if:

• Your app is already in React Native

Typical choice:

• react-native-webrtc

3) Flutter

Best if:

• Your app is in Flutter

Typical choice:

• flutter_webrtc

4) Managed WebRTC platform

Best if:

• You want faster development, less infrastructure work, and built-in signaling/turn/media features

Examples:

• Twilio Video
• Daily
• Agora
• Vonage
• LiveKit (more self-hostable)

These are often easier if you need:

• screen sharing
• recording
• scalable group calls
• NAT traversal / TURN handled for you
• analytics and quality tools

If you’re building your own stack

You’ll need:

• WebRTC for media
• Signaling server (WebSocket, Socket.IO, etc.)
• STUN/TURN servers
• optionally SFU for group calls

Good self-hosted media server choices:

• LiveKit
• mediasoup
• Janus
• Jitsi
• Pion (more low-level)

Recommendation by use case

• 1:1 calls, quickest build: Daily / Twilio / Agora
• Need self-hosting and control: LiveKit
• Custom advanced video routing: mediasoup
• Just browser-based MVP: native WebRTC + your own signaling
• React Native app: react-native-webrtc
• Flutter app: flutter_webrtc

If you tell me your stack:

• web only vs web + iOS + Android
• React Native / Flutter / native
• 1:1 or group calls
• self-hosted or managed

…I can recommend the exact best option.