LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Mailtrap - Email Delivery Platform that delivers just in time. Great for businesses and individuals.
Feem - Share files offline. No servers. No cloud. No limits.
MailCatcher - MailCatcher runs a super simple SMTP server which catches any message sent to it to display in a...
BeeBEEP - You can message and share files inside your intranet without a server.
FakeSMTP - FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily.