Send files securely,
anywhere.
Lavuk is a smart courier pigeon that delivers your files over Cloudflare R2 and your local network — end‑to‑end encrypted, cross‑platform, no middleman.
One Lavuk, any device
A framework-neutral core with real platform adapters — behavior stays the same everywhere, permissions stay native.
Secure
End-to-end protection with BLAKE3 verification and TLS 1.3 device identities. Your keys never touch a config file.
Cross-platform
Desktop today on macOS, Windows & Linux; a shared Rust core keeps mobile true to the same rules.
Fast
Multipart uploads with checkpoints and resumable LAN transfers. Pick up exactly where you left off.
Friendly
Readable share links, clear consent prompts, and honest status. Approachable and always here to help.
Upload. Share. Deliver.
Upload
Drop in files of any size. Lavuk stores immutable objects in your private R2 bucket, or keeps them local for LAN.
Share
Get a readable link served through a narrow gateway. Set expiry, revoke anytime — no raw public URLs.
Deliver
Recipients download from a self-contained page — verified chunk by chunk, with real-time delivery acknowledgement.
Two paths, one promise: your files, private
Send to the cloud when you need a link, or straight across the local network when you don't. Either way, nothing leaks.
Cloud via Cloudflare R2
Your bucket stays private. Shares are served through a narrow Worker gateway that enforces every rule.
r2.dev fallback — the gateway is the only canonical route.Local via LAN
Move files device-to-device over your own network — no cloud round-trip, no third party in the middle.
A link you can trust, and take back
Share pages are deterministic, self-contained HTML — no CDN, no third-party scripts, strict escaping. What you send is exactly what they get.
