Software Libero
Framadate, the alternative to Doodle
https://alternativeto.net/software/framadate/
The free as in freedom alternative to Doodle
Organizzare degli appuntamenti semplicemente,liberamente.

Rocket.Chat – Free, Open Source, Enterprise Team Chat
Rocket.Chat is the leading free open source team chat Slack alternative.
Sorgente: Rocket.Chat – Free, Open Source, Enterprise Team Chat
OpenSC2K
InvoicePlane – An Open Source Invoicing Application – InvoicePlane – An Open Source Invoicing Application
InvoicePlane is a free and open source application to manage your quotes, invoices, payments and customers.
Alternatives
De-google-ify Internet, an alternative to alternativeto.net
Basilisk web browser
This Basilisk web browser will be a boon for all those people who need to still use Java and Flash based websites:
- Full support for JavaScript’s ECMAscript 6 standard for modern web browsing.
- Support for all NPAPI plugins (Unity, Silverlight, Flash, Java, authentication plugins, etc.).
- Support for XUL/Overlay Mozilla-style extensions.
- Experimental support for WebExtensions (in gecko-target mode). Please note that some Mozilla-specific WebExtension APIs are not yet available.
- Support for ALSA on Linux.
- Support for WebAssembly (WASM).
- Support for advanced Graphite font shaping features.
- Support for modern web cryptography: up to TLS 1.3, modern ciphers, HSTS, etc.