fsend

Spec sheet

Purpose

fsend provides direct peer-to-peer file transfers in a browser using WebRTC.Read 12 Oct 2026 · fsend.sh

Free plan

YesRead 21 Sep 2026 · fsend.sh

Privacy

The site says WebRTC data channels are end-to-end encrypted and file data never touches fsend’s servers.Read 12 Oct 2026 · fsend.sh

Browser compatibility

The site says any browser with WebRTC can work, and recommends Chromium-based browsers such as Chrome, Edge, or Opera for the best experience.Read 12 Oct 2026 · fsend.sh

Browser limits

Firefox and Safari buffer transfers in memory and save folders as ZIP files; the site says this limits transfer size to available RAM and prevents resuming interrupted transfers.Read 12 Oct 2026 · fsend.sh

CLI connectivity

The README says the webapp has no fallback relay and may not work depending on network or browser, while the CLI uses iroh, which provides a fallback relay by default.Read 12 Oct 2026 · github.com

CLI platforms

The download page lists Linux, macOS, and Windows installation options, plus source installation.Read 12 Oct 2026 · fsend.sh

Command line

fsend is also available as a command-line tool.Read 12 Oct 2026 · fsend.sh

Desktop app

NoRead 21 Sep 2026 · fsend.sh

File size

The site says there is no file size limit; transfers are constrained by the connection and the receiver’s free disk space.Read 12 Oct 2026 · fsend.sh

Linux packages

The download page says its Debian/Ubuntu APT repository covers x86_64 and aarch64, and updates arrive through the normal apt upgrade.Read 12 Oct 2026 · fsend.sh

Online requirement

Both browser tabs must stay open until the transfer finishes.Read 12 Oct 2026 · fsend.sh

Open source

The site describes fsend as free and open source and links to its code on GitHub.Read 12 Oct 2026 · fsend.sh

Product components

The project README describes fsend as a peer-to-peer file transfer webapp and CLI tool that interoperate.Read 12 Oct 2026 · github.com

Transfer flow

Senders select files or folders, share a one-time code, and transfer files directly to the receiver’s browser.Read 12 Oct 2026 · fsend.sh

Plans and prices

Every fsend plan and price →

Where Specifiction places it

• File transfer services#73 of 1057.7