Download IM3270

Version 0.46.7 - Latest Release

60-Day Free Pro Trial

Free Pro Trial

IM3270 includes a 60-day free Pro trial with all Pro features unlocked. No credit card required. After 60 days, core features remain free forever.

Purchase a License

After your 60-day trial, unlock Pro features with a license

Free Pro Trial

$0

60 days

  • Single user
  • All Pro features for 60 days
  • Core features free forever
  • No credit card required
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Personal License

$19

One-time payment

  • Single user
  • All Pro features
  • Perpetual license
  • 2 years email support

Or scan QR code:

Scan to pay $19 for IM3270 Personal License via PayPal

Team License

$79

One-time payment

  • Up to 10 users
  • All Pro features
  • Perpetual license
  • 2 years priority support

Or scan QR code:

Scan to pay $79 for IM3270 Team License via PayPal

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Choose Your Platform

🪟 Windows 🐧 Linux 🍎 macOS 💻 WSL2 ⚡ Scripts

Windows

Windows 10 / 11 (64-bit)

Windows Installer

Recommended

Download

~113 MB

Windows Portable

No install needed

Download

~113 MB

Prerequisite: wc3270 must be installed and in PATH.

Linux

Fedora, RHEL, Alma, Ubuntu, Debian

DEB Package

Ubuntu / Debian

Download

~90 MB

RPM Package

Fedora / RHEL / Alma

Download

~90 MB

Linux Archive

Universal tar.gz

Download

~134 MB

Install with your package manager:

# Debian / Ubuntu:
sudo dpkg -i im3270_0.46.7_amd64.deb
sudo apt-get install -f    # install dependencies if needed

# Fedora / RHEL / AlmaLinux:
sudo dnf install im3270-0.46.7.x86_64.rpm

Prerequisite: s3270 4.x is required. Distro packages install outdated v3.x – build from source:

wget https://x3270.bgp.nu/download/04.04/suite3270-4.4ga6-src.tgz
tar xzf suite3270-4.4ga6-src.tgz && cd suite3270-4.4
./configure --enable-s3270 --disable-tcl3270 && make s3270 && sudo make install.s3270

Verify Your Download

Optional: confirm file integrity and authenticity

Every release includes SHA256 checksums and a GPG signature. Download SHA256SUMS from the release page alongside your installer.

Verify checksum (Linux/macOS):

sha256sum -c SHA256SUMS

Verify GPG signature (optional):

gpg --import im3270-release.asc
gpg --verify SHA256SUMS.asc SHA256SUMS

See the Security page for the public key and full verification walkthrough.

Software Bill of Materials (SBOM)

Each release includes CycloneDX SBOM files listing all dependencies and licenses for supply chain security and compliance audits: sbom-frontend.json (Node.js/Electron) and sbom-backend.json (Go). All dependencies use permissive licenses (MIT, BSD, Apache-2.0).

macOS COMING SOON

Intel and Apple Silicon (M1/M2/M3/M4)
🍎🔧💻

Teaching the mainframe to speak Apple...
Check back soon!

When available, you'll need: x3270 via Homebrew: brew install x3270

WSL2

Windows Subsystem for Linux

IM3270 works great in WSL2 with GUI support. Use the Linux tar.gz package.

View WSL2 Installation Guide →

Quick Installation Scripts

Fedora / RHEL:

curl -fsSL https://raw.githubusercontent.com/stcarmi/im3270-releases/main/scripts/install-fedora.sh | bash

Ubuntu / Debian:

curl -fsSL https://raw.githubusercontent.com/stcarmi/im3270-releases/main/scripts/install-ubuntu.sh | bash

Windows (PowerShell as Admin):

irm https://raw.githubusercontent.com/stcarmi/im3270-releases/main/scripts/install-windows.ps1 | iex

System Requirements

Windows

  • Windows 10+ (64-bit)
  • wc3270 in PATH
  • 4 GB RAM minimum

Linux

  • 64-bit Linux
  • s3270 4.x (build from source)
  • 4 GB RAM minimum

macOS

  • macOS 11+ (Big Sur or later)
  • x3270 via Homebrew
  • 4 GB RAM minimum