Free software tools, born from our work in the field.

Windows · Free · v1.0.0

Modbus Tester

A tool to test and commission Modbus devices. It works as a master (polling PLCs, instruments, gateways) and as a slave (simulating a device to be read by a PLC or SCADA), over Modbus TCP, Modbus RTU on a serial port, and RTU over TCP for serial/ethernet converters.

• FC01–FC04 reads, single or polled; FC05, FC06, FC15, FC16 writes; FC43 identification
• 16, 32 and 64-bit values, float and double, hexadecimal, binary and ASCII, in all four byte orders
• Debug HEX: every byte sent and received, with the frame decoded
• Flow analyzer: tells you what is wrong with the communication and what to check
• Slave with editable tables and simulated values
• English and Italian interface, light or dark theme

Other files: Italian setup · English MSI · Italian MSI · Italian manual · SHA-256

Requirements: 64-bit Windows 10 or 11 and the Microsoft .NET 10 Desktop Runtime (x64), which the setup checks before installing. Modbus RTU needs a serial port (e.g. a USB-RS485 adapter) or a serial/ethernet converter.

On first launch Windows SmartScreen may show “Windows protected your PC”: choose More info → Run anyway. Free to use, including commercial use; distributed only from this website and the Microsoft Store. License.

Windows · Linux · macOS · Free beta · v1.0.0 beta 12

Albatros Beta

An email and calendar program that stays fast even with very large archives: search is instant across all your mail. Messages stay on your computer, in ordinary .eml files you can copy and keep; every mail folder is a real folder.

• Multiple accounts, IMAP or POP3, with password-free “Sign in with Google” and “Sign in with Microsoft”
• Instant search across the whole archive, however large
• Calendar synced with Google, Microsoft 365 / Outlook.com and CalDAV (Nextcloud, iCloud, Fastmail…), with reminders
• Tasks synced with Microsoft To Do and CalDAV, also created from an email
• Contacts linked to Google, Microsoft and CardDAV
• Preview of attached PDFs and images, also in the compose window
• OpenPGP and S/MIME signing and encryption built in, no add-ons needed
• Import from Thunderbird and Outlook, backup and transfer to another computer
• Interface in nine languages, light and dark theme; installers for Debian/Ubuntu and macOS
• Updates itself, checking the digital signature of every new version
• RSS and Atom feeds, newsgroups; rules for new mail and saved searches

• Windows 10/11 · Intel/AMDwin-x64.zip27 MB
• Windows 11 · ARMwin-arm64.zip26 MB
• Debian/Ubuntu/Mint · Intel/AMDlinux-x64.deb27 MB
• Debian/Ubuntu · ARM (e.g. Raspberry Pi 4/5)linux-arm64.deb26 MB
• macOS 14+ · Apple silicon (M1, M2…)osx-arm64.dmg34 MB
• macOS 14+ · Intelosx-x64.dmg35 MB

Other Linux distributions, or if you prefer an archive to unpack: linux-x64.tar.gz · linux-arm64.tar.gz · osx-arm64.tar.gz · osx-x64.tar.gz

Manual in PDF: English · italiano · français · Deutsch · español · 日本語 · 简体中文 · русский · العربية · SHA-256

Installation: on Windows unpack the zip and start Albatros.exe. On Debian, Ubuntu and Mint double-click the .deb (or sudo apt install ./Albatros-….deb): Albatros appears in the applications menu. On macOS open the .dmg and drag Albatros into the Applications folder. The beta is not digitally signed yet: on first launch Windows may show “Windows protected your PC” (More info → Run anyway) and macOS may block the app (System Settings → Privacy & Security → Open Anyway). Details are in chapter 2 of the manual.

Beta version, free, for testing: it may contain bugs. Back up your mail before importing it from another program. Free to use, including commercial use; distributed only from this website. License · third-party components. Reports and suggestions are welcome at info@aratoingegneria.it.