Nguyen Ho Lansendxa.app

SendXa

Large files straight between two machines, in the browser

  • Web
  • Windows
  • macOS
  • Linux
  • iOS
  • Android

Open sendxa.app at both ends, type the eight-character code or scan the QR, then drop the file in. Up to 32 GB goes straight from one machine to the other. No account, nothing to install, and the server keeps no files.

SendXa
01

Three steps

Open sendxa.app. Type the eight-character code. Download. Or scan the QR, or open the link you were sent. Clipboard text and images travel the same way, with no file to save first.

02

Service stats

32 GBLargest file
62%Sent device to device
0Bytes stored on the server
03

Features

Eight-character code or QR

The two ends find each other with a short code, or by scanning.

Drag and drop

No limit on files per session; 32 GB per file.

Send from clipboard

Paste text or an image and send it as is.

Both directions

The receiving side can send back within the same session.

Encrypted end to end

Data stays encrypted the whole way.

Public stats page

Sessions, files delivered and average speed, open for anyone to read.

04

Stack and infrastructure

PlatformWeb only — Windows, macOS, Linux, iPhone, iPad, Android
TransferWebRTC data channels, straight between the two machines
DiscoverySelf-hosted STUN server, RFC 5389
When no direct path opensA relay service that forwards but never stores
Large filesStreams API — memory stays flat regardless of size
OfflineService worker, so the page reopens without a connection
ServersCustom services under systemd, nginx, TLS
05

The live site