Open-source alternatives to Aster Mail
Projects with an open-source licence: you can inspect, modify and self-host the code.
Same categories and verticals plus the editors' list, in an independent order. Partners and ads never change it.
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KeePassXC87
KeePassXC Team
An offline, encrypted password manager
Open source 88 WindowsLinuxmacOS -
Bitwarden87
Bitwarden Inc.
Open-source cloud password manager
Open source 85 WindowsLinuxmacOSAndroid -
WireGuard87
WireGuard (Jason A. Donenfeld)
A fast, modern and secure VPN protocol
Open source 80 WindowsLinuxmacOSAndroid -
ClamAV87
Cisco Systems (ClamAV)
Open-source antivirus engine for servers
Open source 78 WindowsLinuxmacOS -
MFCMapi87
Microsoft Corporation
Provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.
Open source 77 Windows -
Microsoft Azure Guest Proxy Agent87
Microsoft Corporation
This project introduces the Guest Proxy Agent (GPA) to enhance the security of the Azure Instance Metadata Service and Azure Wireserver endpoints (available in Azure IaaS VM/VMSS).
Open source 77 Windows -
Microsoft Azure Kubelogin87
Microsoft Corporation
A Kubernetes credential (exec) plugin implementing Azure authentication.
Open source 77 Windows -
Microsoft Azure Quick Review87
Microsoft Corporation
A tool to check compliance of Azure resources with Azure best practices and recommendations.
Open source 77 Windows -
NeoChat87
KDE e.V.
Matrix Client
Open source 77 WindowsLinux -
Proton Authenticator87
Proton AG
Secure two-factor authentication app by Proton
Open source 70 Windows -
Bitwarden Directory Connector87
Bitwarden Inc.
A desktop application used to sync your Bitwarden enterprise organization to an existing directory of users and groups.
Open source 60 Windows -
Magika87
Google LLC
Fast and accurate AI powered file content types detection
Open source 60 Windows -
Ruqola84
KDE e.V.
Rocket.Chat client
Open source 82 Windows -
Konversation82
KDE e.V.
IRC client
Open source 77 WindowsLinux -
Thunderbird77
MZLA Technologies (Thunderbird)
Free email and calendar
Open source 80 WindowsLinuxmacOSAndroid -
OnionShare75
Micah Lee, et al.
OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network
Open source 77 WindowsLinux -
Telegram Desktop72
Telegram FZ-LLC
Fast messaging synced across devices
Open source 88 WindowsLinuxmacOSAndroid -
Signal72
Signal Messenger LLC
Private messaging, end-to-end encrypted
Open source 85 WindowsLinuxmacOSAndroid -
Wireshark72
Wireshark Foundation
Professional network packet analysis
Open source 80 WindowsLinuxmacOS -
2FAGuard67
Timo Kössler
A modern and secure Windows app for managing your 2FA authentication codes
Open source 77 Windows -
3va67
OdinoCano
Secure-by-default JavaScript and TypeScript runtime.
Open source 77 Windows -
age67
FiloSottile
A simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability.
Open source 77 Windows -
agentbridge67
AGNTCY
CLI binary for the agentbridge general-purpose agent interconnect.
Open source 77 Windows -
ALEAPP67
abrignoni
Android Logs Events And Protobuf Parser
Open source 77 Windows -
67
VPN client
Open source 77 macOS -
AndroidMessages67
OrangeDrangon
Run Android Messages as a desktop app, a la iMessage
Open source 77 Windows -
Authme67
levminer
Simple cross platform two-factor authentication app.
Open source 77 Windows -
Auto Start Confirm67
Christian Galla
Notifies and asks for permission if a program wants to get automatically started when Windows is started, or a user is logging on.
Open source 77 Windows -
AWS IAM Authenticator67
Kubernetes SIGs
A tool to use AWS IAM credentials to authenticate to a Kubernetes cluster
Open source 77 Windows -
AyuGram Desktop67
Radolyn Labs
Desktop Telegram client with good customization and Ghost mode.
Open source 77 Windows