FAQ

Your questions answered — privacy, security, and how Capsulinker works.

Capsulinker was originally built for our own personal use, and we still rely on it every day. That means it is always actively maintained, secure, and up to date. Over time, we realized it could help others worldwide, so we’re now sharing it with everyone.

Capsulinker stands out in two key ways:

1. Double-Layer Encryption: Capsulinker uses secure HTTPS (TLS) for signaling and WebRTC’s built-in encryption (DTLS + SRTP) for media and data. That means your session travels through multiple encrypted layers — like sealing a locked box and transporting it inside an armored vehicle.

2. Session Integrity by Design: Capsules are live, connection-based sessions. If a session becomes interrupted or the secure connection can’t be maintained, the session ends automatically and the capsule is destroyed. Nothing is recorded or stored as a “conversation history” on the server — the capsule exists only while the connection is active.

Yes. Capsulinker is built on WebRTC, which encrypts audio, video, and data in transit using DTLS + SRTP. In addition, Capsulinker uses HTTPS (TLS) for signaling and session setup — providing layered protection from end to end.

Sessions are peer-to-peer by default and are not recorded or archived. If the secure connection can’t be maintained, the session terminates automatically — the capsule exists only while the connection is active.

Like all peer-to-peer WebRTC applications, Capsulinker may expose network-level IP information to the other participant in order to establish a direct connection. This is part of how real-time peer-to-peer communication works.

If you are using a properly configured VPN, your public IP will typically reflect the VPN’s address rather than your physical location. However, VPN behavior depends on the provider and browser configuration.

Regardless of network routing, all audio, video, and data are encrypted in transit using WebRTC (DTLS + SRTP). Even if IP-level metadata is visible to a peer, the content of your communication remains encrypted and unreadable to third parties.

Capsulinker uses encrypted HTTPS (TLS) and secure WebSocket (WSS) connections for signaling. Signaling is used only to establish the peer-to-peer session — it does not carry your audio, video, or file data.

Once peers connect, media and data flow directly between participants over WebRTC using DTLS + SRTP encryption. The signaling server facilitates the connection setup, but your live communication does not pass through it.

No. Capsulinker does not record, archive, or store your audio, video, messages, or transferred files.

Sessions are live and connection-based — once a capsule ends, the communication ends. Media and file data are transmitted directly between participants and are not saved on our servers.

Capsulinker is designed for anyone who needs direct, secure, real-time communication — without unnecessary complexity.

It’s used for telehealth visits, legal consultations, financial advising, remote client meetings, technical support, education, interviews, and private conversations of all kinds. With encrypted calls, screen sharing, peer-to-peer file transfer, and scheduled sessions, Capsulinker adapts to professional and personal use alike.

Whether you’re running a business, serving clients, collaborating with a team, or simply connecting privately, Capsulinker provides a secure and reliable communication environment.

Capsulinker is a browser-based application built on WebRTC and modern web standards. It works on desktop, tablet, and mobile devices through compatible browsers — with no installation required.

For a more app-like experience, Capsulinker can be installed as a Progressive Web App (PWA) on supported devices, allowing it to behave like a mobile or desktop app while remaining web-based.

Core features such as encrypted audio and video calls, file transfer, and scheduled sessions work across most modern browsers. Advanced features like screen sharing depend on browser and operating system support and may vary between desktop and mobile platforms.

If your browser supports WebRTC, Capsulinker will provide a secure, real-time communication experience.

Yes. Capsulinker is designed to work across home, business, and corporate networks. It intelligently adapts to different firewall and NAT environments to establish a secure connection.

When a direct peer-to-peer connection isn’t possible due to strict network rules, Capsulinker can securely relay traffic to maintain connectivity — allowing calls to function even on restrictive enterprise or VPN-based networks.

As long as your network allows standard HTTPS traffic, Capsulinker will typically connect without special configuration.