v1.0 // Go + QUIC + WebSocket

Descargar Whatsapp Para Mac Catalina 10157 Fixed Jun 2026

A lightweight Go binary that moves files and relays multi-user chat over QUIC. Works from the CLI or a browser. No accounts, no cloud — just room codes.

Go to App Watch the demo Read the docs
~/airsend 
# start the server (web UI + QUIC relay in one process)
$ airsend -sw 0.0.0.0 3888 0.0.0.0 8443
→ web: http://0.0.0.0:3888  ·  quic: 0.0.0.0:8443

# send a file, get a code
$ airsend -f ./logs.tar.gz
→ code: wave21

# receive it anywhere
$ airsend -r wave21
Features

Everything you expect.
None of the bloat.

One binary. Two transports. Zero dependencies at the user’s side — no account, no install step for the receiver if they use the browser.

Descargar Whatsapp Para Mac Catalina 10157 Fixed Jun 2026

As of 2026, Apple considers Catalina "end-of-life" (no more security updates). Consider upgrading to a newer Mac or using a patcher to run Big Sur or Monterey if you want the latest WhatsApp features.

Some users have found success by installing specific older versions of the WhatsApp DMG and "locking" the app to prevent it from auto-updating to an incompatible version. About supported operating systems | WhatsApp Help Center descargar whatsapp para mac catalina 10157 fixed

One-shot file pickup

Files are deleted from the server after the first download. Code-based lookup (wave21, dock42). No lingering blobs.

Multi-user chat rooms

Broadcast rooms by code. CLI TUI or browser — identical semantics.

Rate limited by scope

Token bucket per IP × scope: upload, paste, download, ws. Proxy aware.

Direct P2P mode

Bypass the relay entirely with -d / -ds. Pure peer-to-peer.

Self-signed TLS

Protocol "airsend" over generated certs. Intentional.

How it works

Three commands. One code.

Click a step on the right to scrub through the demo.

As of 2026, Apple considers Catalina "end-of-life" (no more security updates). Consider upgrading to a newer Mac or using a patcher to run Big Sur or Monterey if you want the latest WhatsApp features.

Some users have found success by installing specific older versions of the WhatsApp DMG and "locking" the app to prevent it from auto-updating to an incompatible version. About supported operating systems | WhatsApp Help Center