Talk4Lang: Real-time Language Exchange
A free online language learning platform facilitating real-time peer-to-peer communication through video, audio, and chat.
Ongoing
Solo Developer
Passion Project
Web
Overview
The project
Talk4Lang is a passion project built to explore the complexities of real-time communication technologies. It serves as a decentralized classroom where users can create or join rooms to practice languages with others worldwide. The platform leverages WebRTC for high-quality peer-to-peer video/audio calls and WebSockets for real-time room management and instant messaging, supporting up to 6 participants per session.
Problem
The challenge
Managing stable peer-to-peer connections and synchronizing room states across multiple users in real-time while maintaining low latency.
Approach
The solution
Utilized Socket.io for robust signaling and room state synchronization, combined with a custom WebRTC implementation to handle media streams efficiently.
Highlights
Key features
Real-time Video/Audio
High-quality peer-to-peer calling for up to 6 participants using WebRTC.
Dynamic Rooms
Users can instantly create private or public rooms with custom language focuses.
Integrated Chat
Real-time text communication alongside video calls for better language exchange.
Google Auth
Quick and secure sign-in process to build a community of verified learners.
Outcomes
By the numbers
- 6
- Max participants
- < 200ms
- Signal latency
- 100%
- Free to use
- Created a accessible platform for global language learners to practice speaking
- Gained deep expertise in real-time communication and WebRTC architecture
- Developed a scalable room-based architecture for collaborative web apps
Gallery
Screens & moments
Interested in my work?
I’m always open to discussing new opportunities, collaborations, or just chatting about technology. Let’s connect.
