Apps with 'OpenPGP' feature

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Proton Mail
Freemium • Open Source
WebMail Provider
Email Client
Calendar App
Linux
Online
Android
iPhone
iPad
Tor
85 alternatives to Proton Mail
Secure email with absolutely no compromises, brought to you by MIT and CERN scientists.
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Proton Mail Features
1. End-to-End EncryptionProton Mail has E2E Encryption, for entire or parts of the app.
2. Privacy focusedProton Mail is considered a privacy friendly alternative.
3. Ad-freeProton Mail doesn't contain any form of external advertising.
4. Two-factor AuthenticationProton Mail supports two-factor authentication (2FA).
5. PGP EncryptionProton Mail supports PGP, an encryption system used for sending encrypted emails and files.
6. No TrackingProton Mail will not track you or use your personal data.
7. Self Destructing MessagesProton Mail supports the use of private messages that will be auto deleted according to a specified time or action.
8. Dark ModeProton Mail supports dark mode for comfortable usage in low light conditions.
9. OpenPGPProton Mail supports OpenPGP, a standard of PGP encryption that is open-source for public use.
End-to-End Encryption
Privacy focused
Encrypted Email
Ad-free
Two-factor Authentication
Mobile friendly
Anonymous Email
Custom Domain
PGP Encryption
No Tracking
Top 3 alternatives
Conversations
Free • Open Source
Instant Messenger
Encrypted Chat App
Group Chat App
Android
Android Tablet
F-Droid
142 alternatives to Conversations
Conversations is a privacy focused, open source XMPP Texting [Jabber] client for Android 4.0+ smart phones with wife-approved easy encryption [OTR, OMEMO, or GPG].
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Conversations Features
1. DecentralizedConversations is based on a decentralized infrastructure with no single entity controlling it.
2. End-to-End EncryptionConversations has E2E Encryption, for entire or parts of the app.
3. OpenPGPConversations supports OpenPGP, a standard of PGP encryption that is open-source for public use.
4. GPG EncryptionConversations supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
5. Self Destructing MessagesConversations supports the use of private messages that will be auto deleted according to a specified time or action.
6. PGP EncryptionConversations supports PGP, an encryption system used for sending encrypted emails and files.
Decentralized
End-to-End Encryption
Image Sharing
OpenPGP
Encrypted Connection
OTR
Supports XMPP
GPG Encryption
Federated
OMEMO
Top 3 alternatives
Mailfence
Freemium • Proprietary
WebMail Provider
Email Client
Calendar App
Online
Android
iPhone
Android Tablet
iPad
60 alternatives to Mailfence
Mailfence is a secure and private email service that fights for online privacy and digital freedom.
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Mailfence Features
1. Calendar IntegrationMailfence lets you sync your tasks and events with your calendar application.
2. Privacy focusedMailfence is considered a privacy friendly alternative.
3. Ad-freeMailfence doesn't contain any form of external advertising.
4. Mail FilteringMailfence classifies email messages according to specified criteria, allowing you to automatically recognize fraudulent or spam messages.
5. PGP EncryptionMailfence supports PGP, an encryption system used for sending encrypted emails and files.
6. OpenPGPMailfence supports OpenPGP, a standard of PGP encryption that is open-source for public use.
7. AES-256 EncryptionMailfence has AES-256 Encryption, i.e. very strong security.
8. End-to-End EncryptionMailfence has E2E Encryption, for entire or parts of the app.
9. No TrackingMailfence will not track you or use your personal data.
Calendar Integration
IMAP Support
POP3 Support
Privacy focused
Encrypted Email
Ad-free
Digital Signage
Integrated Spam Protection
Team Messaging
Private key storage
Top 3 alternatives
Dino
Free • Open Source
Group Chat App
Encrypted Chat App
Mac
Linux
BSD
48 alternatives to Dino
Dino is a modern open-source chat client for the desktop. It focuses on providing a clean and reliable Jabber/XMPP experience while having your privacy in mind. Using GTK+/Vala.
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Dino Features
1. End-to-End EncryptionDino has E2E Encryption, for entire or parts of the app.
2. Multiple Account supportDino support multiple accounts without the need to logout and login
3. OpenPGPDino supports OpenPGP, a standard of PGP encryption that is open-source for public use.
4. Privacy focusedDino is considered a privacy friendly alternative.
5. DecentralizedDino is based on a decentralized infrastructure with no single entity controlling it.
6. Real time collaborationMultiple users can work together in Dino simultaneously.
End-to-End Encryption
Supports XMPP
Multiple Account support
OMEMO
Federated
OpenPGP
Community-based
Privacy focused
Xmpp
User Profiles
Top 3 alternatives
Mailvelope
Free • Open Source
Mac
Windows
Linux
Chrome OS
Microsoft Edge
Google Chrome
Firefox
28 alternatives to Mailvelope
Mailvelope is a browser extension that allows to exchange encrypted emails following the OpenPGP encryption standard.
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Mailvelope Features
1. PGP EncryptionMailvelope supports PGP, an encryption system used for sending encrypted emails and files.
2. GPG EncryptionMailvelope supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
3. OpenPGPMailvelope supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Encrypted Email
PGP Encryption
GPG Encryption
OpenPGP
Browser extension
Top 3 alternatives
Mailpile
Free • Open Source
Email Client
WebMail Provider
Linux
Online
Self-Hosted
OpenPGP
59 alternatives to Mailpile
Mailpile is a modern, fast web-mail client with user-friendly encryption and privacy features. The development of Mailpile is funded by a large community of backers and all code related to the project is and will be released under an OSI approved Free Software license.
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Mailpile Features
1. OpenPGPMailpile supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Web-Based
Encrypted Email
OpenPGP
IMAP Support
POP3 Support
Discontinued
1.0.0 Release Candidate 6 from 2019 is the last version on GitHub (https://github.com/mailpile/Mailpile/releases). Possibly the development has been stopped.
Top 3 alternatives
Nitrokey
Free • Open Source
Mac
Windows
Linux
11 alternatives to Nitrokey
Nitrokey is an USB key to enable highly secure encryption and signing of emails and data, as well as login to the Web, networks and computers. Other than ordinary software solutions, the secret keys are always stored securely inside the Nitrokey.
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Nitrokey Features
1. Two-factor AuthenticationNitrokey supports two-factor authentication (2FA).
2. Time-based One-time PasswordNitrokey has support for TOTP, a computer algorithm that generates Time-based One-Time Passwords
3. PGP EncryptionNitrokey supports PGP, an encryption system used for sending encrypted emails and files.
4. OpenPGPNitrokey supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Two-factor Authentication
HMAC-Based One-Time Password (HOTP)
Time-based One-time Password
Hardware securite module (HSM)
PGP Encryption
Password safe
OpenPGP
S/MIME Support
Add a screenshot
Top 3 alternatives
Kontalk Messenger
Free • Open Source
Instant Messenger
Encrypted Chat App
Android
Self-Hosted
53 alternatives to Kontalk Messenger
Kontalk is a secure instant messenger, allowing you to send and receive text, image and voice messages (other file types coming soon) to and from other Kontalk users completely free of charge.
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Kontalk Messenger Features
1. End-to-End EncryptionKontalk Messenger has E2E Encryption, for entire or parts of the app.
2. OpenPGPKontalk Messenger supports OpenPGP, a standard of PGP encryption that is open-source for public use.
End-to-End Encryption
OpenPGP
Top 3 alternatives
PGP Tool
Free • Open Source
Mac
Windows
Linux
16 alternatives to PGP Tool
PGP for Windows, MacOS and linux. Desktop application to encrypt and decrypt PGP files. It's free and easy to use. OpenPGP compatible.
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PGP Tool Features
1. OpenPGPPGP Tool supports OpenPGP, a standard of PGP encryption that is open-source for public use.
2. PGP EncryptionPGP Tool supports PGP, an encryption system used for sending encrypted emails and files.
OpenPGP
PGP Encryption
Top 3 alternatives
Keyoxide
Free • Open Source
Online
Self-Hosted
98 alternatives to Keyoxide
Keyoxide allows you to link accounts on various online services and platforms together, prove they belong to you and establish an online identity. This puts you, the internet citizen, in charge when it comes to defining who you are on the internet instead of large corporations.
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Keyoxide Features
1. OpenPGPKeyoxide supports OpenPGP, a standard of PGP encryption that is open-source for public use.
OpenPGP
Top 3 alternatives
MIT PGP Public Key Server
Free • Open Source
Privacy Tool
Online
OpenPGP
6 alternatives to MIT PGP Public Key Server
It is the place, where users can submit their OpenPGP public keys and search for the already submitted keys.
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MIT PGP Public Key Server Features
1. GPG EncryptionMIT PGP Public Key Server supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
2. PGP EncryptionMIT PGP Public Key Server supports PGP, an encryption system used for sending encrypted emails and files.
3. Privacy focusedMIT PGP Public Key Server is considered a privacy friendly alternative.
4. OpenPGPMIT PGP Public Key Server supports OpenPGP, a standard of PGP encryption that is open-source for public use.
GPG Encryption
PGP Encryption
Privacy focused
Encrypted Email
OpenPGP
Security focused
Add a screenshot
Top 3 alternatives
peegeepee
Free • Proprietary
Online
6 alternatives to peegeepee
peegeepee.com is a free and public PGP Key server.
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peegeepee Features
1. OpenPGPpeegeepee supports OpenPGP, a standard of PGP encryption that is open-source for public use.
2. PGP Encryptionpeegeepee supports PGP, an encryption system used for sending encrypted emails and files.
3. Privacy focusedpeegeepee is considered a privacy friendly alternative.
4. GPG Encryptionpeegeepee supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
OpenPGP
PGP Encryption
Privacy focused
Security focused
GPG Encryption
Encrypted Email
Discontinued
Website no longer available.
Top 3 alternatives
gpg4o
Free Personal • Proprietary
Windows
Microsoft Office Outlook
OpenPGP
2 alternatives to gpg4o
OpenPGP Plugin for Outlook 2010/13/16.
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gpg4o Features
1. OpenPGPgpg4o supports OpenPGP, a standard of PGP encryption that is open-source for public use.
2. PGP Encryptiongpg4o supports PGP, an encryption system used for sending encrypted emails and files.
3. GPG Encryptiongpg4o supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
OpenPGP
PGP Encryption
GPG Encryption
Top 3 alternatives
OpenPGP Keyserver
Free • Open Source
Privacy Tool
Online
OpenPGP
6 alternatives to OpenPGP Keyserver
This is a pool of OpenPGP key servers. Each of them is the place, where users can submit their OpenPGP public keys and search for the already submitted keys.
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OpenPGP Keyserver Features
1. PGP EncryptionOpenPGP Keyserver supports PGP, an encryption system used for sending encrypted emails and files.
2. Privacy focusedOpenPGP Keyserver is considered a privacy friendly alternative.
3. GPG EncryptionOpenPGP Keyserver supports GPG (aka GnuPG) for encryption of things like emails, messages, files, etc.
4. OpenPGPOpenPGP Keyserver supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Encrypted Email
PGP Encryption
Privacy focused
GPG Encryption
Security focused
OpenPGP
Add a screenshot
Top 3 alternatives
SecureBlackbox®
Paid • Proprietary
Mac
Windows
Linux
Android
iPhone
Android Tablet
iPad
5 alternatives to SecureBlackbox®
SecureBlackbox is a library (suite of components and classes) for software developers that allows them to provide secure data transfer and storage, digital signing and verification, encryption, and compression (please refer to /n software website to get the complete list of...
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SecureBlackbox® Features
1. OpenPGPSecureBlackbox® supports OpenPGP, a standard of PGP encryption that is open-source for public use.
Support for FTP
Support for SFTP
SAML Single Sign-On
OpenPGP
Add a screenshot
Top 3 alternatives

Proton Mail Features

Top 3 alternatives

Conversations Features

Top 3 alternatives

Mailfence Features

Top 3 alternatives

Dino Features

Top 3 alternatives

Mailvelope Features

Top 3 alternatives

Mailpile Features

Top 3 alternatives

Nitrokey Features

Top 3 alternatives

Kontalk Messenger Features

Top 3 alternatives

PGP Tool Features

Top 3 alternatives

Keyoxide Features

Top 3 alternatives

MIT PGP Public Key Server Features

Top 3 alternatives

peegeepee Features

Top 3 alternatives

gpg4o Features

Top 3 alternatives

OpenPGP Keyserver Features

Top 3 alternatives

SecureBlackbox® Features

Top 3 alternatives