RelicBeam lets users browse remote folders via browser using WebRTC, no install needed

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A developer has built RelicBeam, a browser-based tool that allows users to access and browse folders on another device without installing any software. The feature, called Remote Files, works by having the host select a folder and share a QR code or link, after which the remote device can browse, preview, and download files. File data is transferred directly between browsers via WebRTC DataChannels with end-to-end encryption, meaning files are never uploaded to RelicBeam's servers. Writable folder access is currently limited to Chrome and Edge due to File System Access API restrictions, while Firefox and Safari support read-only hosting. The developer noted key tradeoffs, including the inability to perform server-side malware scanning on WebRTC transfers and the need for a reconnect grace period to handle Android browser backgrounding issues.

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