Browse free open source Security software and projects for Mac below. Use the toggles on the left to filter open source Security software by OS, license, language, programming language, and project status.
Anti-Spam SMTP Proxy Server implements multiple spam filters
E-mails, subdomains and names
The first messaging platform operating without user identifiers
An automated e-mail OSINT tool
Implementation of the EDIINT AS2 protocol (RFC 4130)
AS2 1.1 server implementation in Java
PHP secure communications library
PHP package built for Laravel 5.* & 6.* & 7.* & 8.* & 9.* & 10.*
[WARNING] Project has moved to http://github.com/Retroshare/Retroshare
Keybase Go library, client, service, OS X, iOS, Android, Electron
Go to github.com/vlm/asn1c for the latest version.
Implementation of the OFTP2 protocol (RFC 5024)
The communications platform that puts data protection first
Easy and fast file sharing from the command-line
ObjectivePGP is an open-source library for iOS and macOS
UFONet - Denial of Service Toolkit
Chat Messenger. E-Mail-Client. Websearch. Filetransfer.