Falcon fft

Features

One small binary that moves data at the speed of the link

Falcon fft moves very large files over the network you already have: clean private links and long, lossy internet paths alike. It goes directly from your machine to theirs, encrypted end to end, with nothing in between.

See the measurements Explore use cases

No middleman

We never see your data

Transfers go straight from one machine to the other. There is no Falcon cloud, relay or storage in the path, so neither Falcon fft nor Makai Systems ever sees your files, their names, or who you send them to.

Every packet is encrypted with keys that exist only on the two machines in the transfer, and the shared secret that sets them up never crosses the network.

  • Peer to peer: no upload to anyone's servers
  • End-to-end encryption, on by default
  • No accounts and nothing stored with us
0Copies of your data held by Falcon fft or Makai Systems
2Machines that hold the keys: the sender and the receiver

Controlled networks

Fill 10, 25 and 100 Gbps pipes

Data centers, campus backbones, cloud networks and private interconnects have bandwidth that ordinary file tools leave idle. fft uses it, on its own: there's nothing to tune before the first run, and it can spread a transfer across several network adapters.

91–94 GbpsSustained over 100 Gbps cloud networking, encrypted
100 GiB in 11 sEnd to end, including setup, encrypted and verified

Public internet

Fast and encrypted over the open WAN

On the public internet, fft still sustains tens of gigabits per second, and every packet is encrypted and authenticated. Sessions are forward secret, a receiver accepts only senders that hold the shared secret, and forged or injected packets never reach the disk.

37–41 GbpsSustained with standard internet-sized packets, encrypted

Long, lossy links

Full speed through latency and packet loss

Intercontinental links, satellite, cellular and congested peering slow most file tools to a crawl. fft keeps moving at the speed the path can really carry, and it stays a good neighbor: when the network is genuinely full, it backs off.

33–40 Gbps100 ms round trip with 1% packet loss, encrypted
2,500×Faster than default TCP at 300 ms with 2% loss

Peer to peer

No servers to run. No firewall tickets.

The two machines find each other and connect directly, even when both sit behind ordinary home or office routers. Share a one-line ticket and send. On private networks, connect straight to an address, or run fully offline on air-gapped networks.

$ fft recv --output ./incoming --show-ticket
fft:eyJ2Ijox…

$ fft send ./footage fft:eyJ2Ijox… -r
93%Of direct-connection speed, measured NAT to NAT on the same machines with no open ports

Efficient

Small, light and self-contained

fft is a single executable of a few megabytes with no dependencies: copy it onto a server, a laptop, a ship's workstation or a container and run it. Memory stays flat whatever the file size, so a 100 GB transfer runs in the same footprint as a 1 GB one.

≤310 MBPeak memory per side, flat for a 100 GiB transfer
One fileLinux, macOS and Windows

Reliable

Verified, resumable, unattended

Every file is verified end to end as it streams. If a transfer is interrupted, run it again and only what's missing is sent. Whole folders, thousands of small files and always-on receivers are all built in.

100%Of files verified end to end before a transfer reports success

Licensing

Licenses on demand, checked offline

A license is a short signed token: install it once and fft checks it on the machine, with no license server to reach. Air-gapped hosts can get a license bound to one machine. At launch you'll be able to buy and renew straight from the terminal.

$ fft license install fftlic:eyJ2Ijox…
$ fft license status
Status:      valid

Automation and AI agents

Built to be driven by scripts and LLMs

Point a coding agent or an LLM at fft and it learns the whole tool from the binary itself: fft spec describes every command as JSON, always matching the installed version. Progress, diagnostics and transfer reports are machine-readable too, so fft drops into pipelines and agents without glue code.

fft specThe complete command contract, as JSON, from the binary

Falcon fft and Makai Systems: not in the path

No middleman. We never see your data.

Every transfer goes peer to peer, straight from one machine to the other, encrypted with keys that exist only on those two machines. There is no Falcon cloud, relay or storage in between, so neither Falcon fft nor Makai Systems ever sees your files, their names, or who you send them to.

Try it on your own network

Falcon fft is in early access. Leave your email and we'll set up a trial on your own links.