Best Security & Privacy Software & Apps (2025)

Best Security & Privacy Apps and Services

Handpicked collection of the most popular and highly-rated Security & Privacy applications

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NextDNS

Open Source

DNS66

Open Source

DNSCrypt Protocol

Open Source

Bisq (Bitsquare)

Open Source

Cryptee

Open Source

Metasploit

Open Source

OpenNIC

Open Source

XCP-ng

Open Source

Internxt Drive

Open Source

OpenSSL

Open Source

Disroot

Open Source

Disroot is an opensource project that provides secure email accounts for your desktop client or via a web interface.

andOTP

Open Source

An open-source android authenticator app.

FreeOTP

Open Source

FreeOTP is an Opensource OTP (One Time Password) tool that supports HOTP and TOTP.

DropIt

Open Source

DropIt is an opensource tool to organize files and folders.

simplewall

Open Source

Simplewall is a tool to configure the Windows Filtering Platform (WFP) which can configure network activity.

Firefox Send

Open Source

Firefox Send is a free cloud-based solution to share files online.

Ubuntu Touch

Open Source

Ubuntu Touch is a mobile version of the Ubuntu operating system.

ActivityWatch

Open Source

ActivityWatch is a free opensource app that automatically tracks how you spend time on your devices such as phones and laptops.

Joplin

Open Source

Joplin is an open-source free note taking and to-do application.

7-Zip

Open Source

7Zip is an open source archiving utility currently supporting only Windows platform. It fully supports 7z, ZIP, GZIP, BZIP2 and TAR formats.

Zed Attack Proxy

Open Source

Zed Attack Proxy (ZAP) is a tool to find security vulnerabilities in web applications.

GPGMail

Open Source

GPGMail is an extension for Apple Mail that provides public key email encryption and signing.

ddrescue

Open Source

GNU ddrescue is a data recovery tool. It copies data from one file or block device (hard disk, CD-ROM, etc.) to another, trying hard to rescue data in case of read errors.

OnionCat

Open Source

OnionCat is a VPN-adapter which allows connecting two or more computers.

Cryptonite

Open Source

Cryptonite brings EncFS and TrueCrypt to Android. You can browse, export and open EncFS-encrypted directories and files on your Dropbox and on your phone.