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DOWNLOADS

JC3 Downloads

Download JC3 applications for your platform. All binaries are signed and include SHA-256 checksums for integrity verification.

Version: 2.0.0 Released: 2026-03-20 License: Proprietary Go: 1.22 Electron: 29
Android

JC3 MESH

SCAN TO DOWNLOAD JC3

Scan QR to Install

Point your Android camera at the QR code to download the JC3 MESH APK directly to your device. Ensure "Install from unknown sources" is enabled in your device settings.

Android 8.0+ (ARM64)
chaz-mesh-v2.0.2.apk
44 MB ARM64-v8a API 26+
SHA-256: a5cd18ec55af70821275d35dcedd6e9565038cc5282709f91fa3e3393f8d6feb
Download APK
Android 8.0+ (Universal / Debug)
chaz-mesh-v2.0.0-debug.apk
55 MB All ABIs API 26+
SHA-256: f8e3383e027db8760fad825f11502e0242270b247848f7a51132680c0f20535e
Download APK

System Requirements

Android 8.0 (Oreo) or later
ARM64 or ARM32 processor
2 GB RAM minimum
WiFi and/or Bluetooth capable
GPS for position sharing
100 MB free storage

Installation Instructions

[+]
  1. Download the APK file to your Android device.
  2. Open Settings > Security (or Settings > Apps > Special Access on newer devices) and enable Install unknown apps for your browser or file manager.
  3. Open the downloaded APK file and tap Install.
  4. Launch JC3 MESH. On first run, grant the requested permissions (Location, Nearby Devices, WiFi).
  5. Enter your network passphrase to join an existing mesh, or create a new network.

Verify integrity:

# On Linux/macOS:
sha256sum chaz-mesh-v2.0.2.apk

# On Windows (PowerShell):
Get-FileHash chaz-mesh-v2.0.2.apk -Algorithm SHA256
Desktop

JC3 COP

Windows 10/11 (x64)
JC3-COP-Setup-1.0.0.exe
2.6 MB Installer Electron 29
SHA-256: a0bacd6a537f65a7e2012f612cbe58eb799fbbfb8692c8c24ea083cd8d086f46
Download Installer
Windows 10/11 (x64)
CHAZ-Mesh-2.0.3-portable.exe
72 MB Portable No install needed
SHA-256: 7cd823779c5d78df4d6a5af459755958b11476606662ba6ba9d7d89bf889ee52
Download Portable

System Requirements

Windows 10/11 (64-bit)
4 GB RAM (8 GB recommended)
500 MB free disk space
GPU with WebGL 2.0 (for 3D globe)
Network access to JC3 Relay
1280x720 minimum resolution

Windows Installation (Installer)

[+]
  1. Download JC3-COP-Setup-1.0.0.exe.
  2. Verify the SHA-256 checksum against SHA256SUMS.txt.
  3. Run the installer. Windows SmartScreen may prompt — click More info > Run anyway.
  4. Follow the setup wizard. Default install path: C:\Program Files\JC3 COP\.
  5. Launch JC3 COP from the Start Menu or Desktop shortcut.
  6. Enter your Relay URL and credentials on first launch.

Windows Portable (No Install)

[+]
  1. Download CHAZ-Mesh-2.0.3-portable.exe.
  2. Verify the SHA-256 checksum against SHA256SUMS.txt.
  3. Run the EXE directly — no installation required.
  4. Enter your Relay URL and credentials on first launch.

The portable version stores all settings in the same directory as the executable. Ideal for USB drives and air-gapped environments.

Server

JC3 DAEMON

The JC3 daemon (jc3d) runs on mesh nodes to handle routing, telemetry, and relay communication. On first run, generates TLS certs and an API token in ~/.jc3/. REST API at https://127.0.0.1:9443/api/v1. Single static Go 1.22 binary — no dependencies.

Linux x86_64
jc3d-linux-amd64
10.8 MB Static Binary Go
SHA-256: 11fd8e9415f131700c05b98750e7fd08a515494d82f7aa8fe2285f9fea92a4f5
Download
Linux ARM64
jc3d-linux-arm64
10.3 MB Static Binary Go
SHA-256: 7015ef9f4858d8b6b460215b8953c39841042a1c06a91156c1b3e2688d1161a9
Download
Windows x86_64
jc3d-windows-amd64.exe
11 MB Static Binary Go
SHA-256: 61302a1636f83dc1a6f925bb2125a30cf116b57145a8fb55ee68b41351213c38
Download

Daemon Install (Linux)

[+] 
# Download
wget https://jcan.us/downloads/jc3d-linux-amd64

# Verify checksum
wget https://jcan.us/downloads/SHA256SUMS.txt
sha256sum -c SHA256SUMS.txt --ignore-missing

# Install
chmod +x jc3d-linux-amd64
sudo mv jc3d-linux-amd64 /usr/local/bin/jc3d

# Run
jc3d --config /etc/jc3/config.yaml
Server

JC3 RELAY

The JC3 relay bridges mesh networks across the internet, provides the REST API, WebSocket feeds, and the COP dashboard. Supports TAK, SIGMA, and SIP bridge integrations. Single static Go 1.22 binary — no dependencies. Recommended deployment: Ubuntu 22.04+ with systemd.

Linux x86_64
jc3-relay-linux-amd64
7.9 MB Static Binary Go
SHA-256: 4161d37349fb9cfd10b15c41d745c26784cb3a2e39689a6e05fc16373b411c27
Download
Linux ARM64
jc3-relay-linux-arm64
7.6 MB Static Binary Go
SHA-256: 92ff4bed11112a892faa8f40d40a83418e5138f75d8c79011d457b49ef009c12
Download
Windows x86_64
jc3-relay-windows-amd64.exe
8 MB Static Binary Go
SHA-256: c8bb00d46113ee3d25d281717ff9a71f4c044426754370fb74fbbf447a3cd9ec
Download

System Requirements

Linux (Ubuntu 22.04+, Debian 12+, RHEL 9+) or Windows
No runtime dependencies (static Go binary)
2 GB RAM (4 GB for AI engine)
1 GB free disk space
Ports: 9443 (HTTPS), 9000 (TCP mesh)
Optional: WireGuard, nginx, certbot

Relay Install (Linux)

[+] 
# Download
wget https://jcan.us/downloads/jc3-relay-linux-amd64

# Verify checksum
wget https://jcan.us/downloads/SHA256SUMS.txt
sha256sum -c SHA256SUMS.txt --ignore-missing

# Install
chmod +x jc3-relay-linux-amd64
sudo mv jc3-relay-linux-amd64 /usr/local/bin/jc3-relay

# Configure
sudo mkdir -p /opt/jc3
sudo nano /opt/jc3/config.yaml

# Run
jc3-relay --config /opt/jc3/config.yaml

Relay Install (Windows)

[+]
  1. Download jc3-relay-windows-amd64.exe.
  2. Verify the SHA-256 checksum against SHA256SUMS.txt.
  3. Place the binary in a directory on your PATH (e.g., C:\Program Files\JC3\).
  4. Open an elevated command prompt and run: jc3-relay-windows-amd64.exe --config config.yaml
Archive

LEGACY DOWNLOADS

Previous CHAZ-branded releases. These are superseded by the JC3 builds above but remain available for backward compatibility.

Windows (x64) — Portable
CHAZ-Mesh-2.0.2-portable.exe
72 MB v2.0.2 Portable
SHA-256: e7dccf0177f57d274c11cc23d673b1d7427ebc7881b31a33627523a6c80ff8cd
Download
Windows (x64) — Portable
JC3-MESH-2.0.0-portable.exe
72 MB v2.0.0 Portable
SHA-256: 99534f9693012d506e8cbd4dc27bccb7c98f2aff355716a8ad5be1e76e0e915e
Download
Android 8.0+ (ARM64)
chaz-mesh-v2.0.0.apk
31 MB v2.0.0 Release
SHA-256: 008179c71933e0b2a310d74cb3f26f6a771815e559eace49a52eeba36571ef26
Download
Integrity

SHA-256 CHECKSUMS

Always verify downloaded files against the official checksums before installation.

All Platforms
SHA256SUMS.txt
Checksums for all files
Download SHA256SUMS.txt View Online

How to Verify

[+] 
# Linux / macOS — verify all downloaded files at once:
sha256sum -c SHA256SUMS.txt --ignore-missing

# Or verify a single file:
sha256sum jc3d-linux-amd64

# Windows (PowerShell):
Get-FileHash .\jc3d-windows-amd64.exe -Algorithm SHA256
Checksum copied to clipboard