KeePass keeps every account inside a single encrypted database and asks you to remember one master key. Version 2.61.1 arrived on 1 May 2026 with a list of fixes, and Auto-Type fills forms by simulating keystrokes.

KeePassXC 2.7.12 is free and open source on Windows, macOS and Linux, storing every account in one local encrypted file with a browser extension for autofill and a generator built in. Data never sits on a vendor server, and no subscription is charged.

Passbolt is an open source credential platform for teams, with the vault running on your own server or inside the firewall. A browser extension, mobile apps and a command line tool share one encrypted set of data, sharing uses OpenPGP public keys, and private keys stay on the client.

One encrypted file on your own disk, no cloud sync, no telemetry, no account: a password vault whose trust model is a file and a master password, nothing else.

Pi-hole is the classic open source answer to network level filtering: it stands in front of a whole local network as a DNS server, so devices need no plugin of their own to have tracking and advertising requests dropped, it runs on a Raspberry Pi, and the self hosting community around it is mature.

Portmaster is an open source application firewall from Safing that shows every outbound connection in real time and lets you allow or block it in one click, with encrypted DNS and built in filter lists under the GPLv3.

CryFS is an open source encrypted filesystem for cloud folders: it splits files into encrypted blocks, scrambles names and directory structure, and gives you a normal mounted folder on the desktop while the cloud only ever stores unreadable chunks.

Cryptomator is an open-source tool that encrypts files in a local vault with AES-256 before they sync, so a cloud provider only ever stores unreadable data.

Almost every password manager is a commercial service with the passwords on somebody else's machine, and asking to run the server yourself usually gets nowhere. This one, published under the AGPL, keeps both roads open: the official cloud is free for one person, or the whole thing can be deployed on your own hardware so that the data really stays with you. Client and server code are both public, and every platform behaves the same.

An open source browser extension that leans on a community maintained rule library to strip tracking parameters out of addresses in the background. It cleans a whole list at once, copies a clean link straight from the context menu, blocks link auditing and redirection hops, and sits there so lightly that you forget it is running.

An open-source privacy extension that has been running for more than a decade. It blocks ads and trackers, swaps personal identifiers in requests for random values, and answers cookie consent prompts with a refusal on your behalf. Every page shows how many trackers it carried and which companies they belong to.

A public resolver that answers ad, tracking and phishing domains with a name that does not exist, so nothing on the network can reach them. It speaks every mainstream encrypted protocol, keeps no logs, needs no client, and its core is open enough to host yourself. The base service is free.

An open-source privacy tool that filters advertising and tracking requests for every application on the machine through a local proxy, rather than working as a browser extension. MIT licence, no telemetry, no account.