Open-source privacy software
526 open-source libraries, tools and applications tagged privacy, ranked by how closely privacy is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
526 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| 0xCUB3/wBlock wBlock is an open-source, next-generation ad blocker built as Safari content-blocking extensions for macOS, iOS, iPadOS, and visionOS. It s… | 91 | 3075 | active |
| bpc-clone/bpc_firefox_support Support and issue-tracking repository for Bypass Paywalls Clean, a Firefox browser extension that bypasses news site paywalls. Development … | 32 | 3058 | active |
| corbindavenport/just-the-browser A collection of configuration files and installation scripts that disable AI features, telemetry, sponsored content, and other annoyances i… | 82 | 3034 | active |
| flick9000/winscript WinScript is an open-source desktop and web tool for building custom Windows optimization scripts from scratch. It generates PowerShell scr… | 87 | 2936 | active |
| pyllyukko/user.js A hardened user.js configuration template for Mozilla Firefox that enforces security and privacy settings. It limits tracking, fingerprinti… | 63 | 2893 | active |
| Gedsh/InviZible InviZible Pro is an Android application that combines Tor, DNSCrypt, and Purple I2P modules to provide online privacy, anonymity, and acces… | 99 | 2827 | active |
| shatyuka/Zhiliao Zhiliao is an Xposed module that removes ads and cleans up the interface of the Zhihu Android app. It also offers content filtering, UI sim… | 56 | 2819 | active |
| yiyuan-jichang/dizhi A repository serving as the official website mirror for Yiyuan Airport (一元机场), a commercial VPN/proxy subscription service. It primarily ex… | 37 | 2788 | active |
| salarcode/SmartProxy SmartProxy is a Firefox, Chrome, and Edge browser extension that automatically enables or disables proxy usage per website based on customi… | 88 | 2748 | active |
| dimdenGD/OldTwitter A browser extension that restores the old Twitter layout from 2015 (with an optional 2018 design) by fully replacing the modern Twitter cli… | 98 | 2734 | active |
| szTheory/exifcleaner ExifCleaner is a free, open-source cross-platform desktop GUI app that strips EXIF and other metadata from images, videos, and PDFs using E… | 98 | 2717 | active |
| OnionBrowser/OnionBrowser Onion Browser is a free, open-source privacy-focused web browser for iPhone and iPad that tunnels web traffic through the Tor anonymity net… | 95 | 2681 | active |
| aforensics/HiddenVM HiddenVM is a free, open-source Linux application that lets you run Oracle VirtualBox on the Tails operating system, so almost any desktop … | 23 | 2678 | active |
| TrackerControl/tracker-control-android TrackerControl is an Android app that monitors and blocks hidden tracking and ads in mobile apps using a local VPN to analyze network traff… | 95 | 2666 | active |
| insin/control-panel-for-twitter Control Panel for Twitter is a browser extension for desktop and mobile browsers that gives users more control over their Twitter/X experie… | 95 | 2642 | active |
| botswin/BotBrowser BotBrowser is a privacy-focused browser core (Chromium-based) that unifies and controls browser fingerprint signals across platforms, integ… | 85 | 2632 | active |
| snake-4/Zygisk-Assistant A Zygisk module written in C++ that hides the existence of root and Zygisk from apps on Android 5.0 and above. It works with KernelSU, Magi… | 49 | 2618 | active |
| sidex15/susfs4ksu-module A KernelSU addon module that installs userspace helpers (ksu_susfs, sus_su) to communicate with a SUSFS-patched kernel for kernel-level roo… | 83 | 2597 | active |
| ungoogled-software/ungoogled-chromium-windows Windows packaging and build scripts for ungoogled-chromium, a Chromium variant with all Google services and tracking removed. It provides b… | 93 | 2564 | active |
| mullvad/mullvad-browser Mullvad Browser is a privacy-focused desktop web browser developed jointly by Mullvad VPN and the Tor Project, essentially a Tor Browser de… | 97 | 2554 | active |
| Barre/privaxy Privaxy is a MITM HTTP(S) proxy written in Rust that blocks ads and trackers at the network level, supporting Adblock Plus and uBlock Origi… | 23 | 2537 | active |
| Proton VPN client Official open-source Proton VPN client apps for Android and Windows, built by Proton AG to route traffic through Proton's VPN servers. The … | 93 | 2532 | active |
| abrahamjuliot/creepjs CreepJS is a web application that performs advanced device and browser fingerprinting to expose weaknesses in anti-fingerprinting browsers … | 67 | 2520 | active |
| Namada Namada is a Rust implementation of a Proof-of-Stake layer-1 blockchain focused on multichain asset-agnostic privacy, built on CometBFT cons… | 96 | 2516 | active |
| AirGuard AirGuard is an Android app that protects users from unwanted tracking via AirTags and other Apple Find My accessories. It periodically scan… | 92 | 2516 | active |
| gijsdev/ublock-hide-yt-shorts A uBlock Origin filter list that hides all traces of YouTube Shorts videos. It is imported into uBlock Origin's dashboard as a custom filte… | 78 | 2507 | active |
| HACKERALERT/Picocrypt Picocrypt is a very small, simple, and secure file encryption tool written in Go, using modern cryptography like XChaCha20, Argon2, and SHA… | 10 | 2482 | active |
| NodePassProject/Anywhere Anywhere is a native proxy client for iOS, iPadOS, macOS, and tvOS built entirely in Swift with no external proxy-core bridges. It implemen… | 67 | 2441 | active |
| yjeanrenaud/yj_nearbyglasses Nearby Glasses is a mobile app that scans Bluetooth LE advertisements to detect smart glasses (like Ray-Ban Meta) nearby and warns the user… | 80 | 2433 | active |
| anticensority/runet-censorship-bypass A browser extension for Chromium and Firefox that bypasses internet censorship in Russia using PAC (Proxy Auto-Config) scripts. It keeps th… | 62 | 2415 | active |
| feiniaoyun/feiniaoyun A repository serving as a mirror-link directory for Feiniaoyun, a commercial VPN/proxy subscription service, listing rotating access URLs r… | 68 | 2411 | active |
| htrgouvea/nipe Nipe is a Perl-based command-line engine that routes all of a machine's network traffic through the Tor network by manipulating iptables/ip… | 75 | 2398 | active |
| 0x48piraj/fadblock FadBlock Origin is a browser extension that blocks YouTube ads by detecting ads and fast-forwarding through them in under 100 milliseconds,… | 10 | 2382 | active |
| FiloSottile/whoami.filippo.io A public SSH server (written in Go) that identifies visitors by enumerating the public keys their SSH client offers and matching them again… | 63 | 2367 | stable |
| quenhus/uBlock-Origin-dev-filter A set of uBlock Origin filter lists that hide copycat and SEO-spam websites from search results on Google, DuckDuckGo, and other engines. I… | 37 | 2324 | active |
| AhmetCanArslan/ShizuWall ShizuWall is a lightweight Android firewall app that controls per-app network access without using a VPN tunnel. It works on Android 11+ by… | 83 | 2321 | active |
| owerdogan/whoami-project Whoami is a user-friendly privacy and anonymity CLI tool for Debian and Arch-based Linux distributions. It bundles 9+ modules such as IP ch… | 40 | 2313 | active |
| sglfree/freesky A distribution and documentation hub for free anti-censorship (circumvention) software such as Freegate, Ultrasurf, Psiphon 3, and nthLink,… | 66 | 2307 | active |
| gautamkrishnar/nothing-private Nothing Private is a proof-of-concept website demonstrating that browser fingerprinting can identify and track users even in private browsi… | 66 | 2292 | active |
| allenymt/PrivacySentry PrivacySentry is an Android privacy compliance toolkit combining a Gradle plugin with a runtime SDK, using annotations plus ASM bytecode in… | 46 | 2288 | active |
| julian-klode/dns66 DNS66 is an open-source Android app that blocks ads and malicious hosts by intercepting DNS queries through a local VPN service. It uses co… | 10 | 2246 | active |
| tdurieux/anonymous_github Anonymous GitHub is a proxy server that anonymizes GitHub repositories (owner, org, repo name, file names, and file contents) so researcher… | 76 | 2242 | active |
| GrapheneOS/Vanadium Vanadium is a privacy and security hardened variant of Chromium that serves as the standard browser and WebView provider on GrapheneOS. It … | 95 | 2231 | active |
| pass-with-high-score/blockads-android BlockAds is a free, open-source Android app that blocks ads, trackers, and malware system-wide using local VPN-based DNS filtering, with no… | 83 | 2196 | active |
| TsingZ0/PFLlib PFLlib is a beginner-friendly Python library and benchmark for traditional and personalized federated learning, offering 39 algorithms, 24 … | 55 | 2166 | active |
| uBlock-LLC/uBlock uBlock is a fast, lightweight browser extension that blocks ads, pop-ups, and trackers in Chrome, Firefox, Safari, Edge, and Opera. It emph… | 10 | 8248 | maintenance |
| blueagler/DeepL-Helper A Chromium browser extension that unlocks DeepL free-tier restrictions, including the 5,000-character limit, editing restrictions on docume… | 41 | 2102 | active |
| TrianguloY/URLCheck URLCheck is an open-source Android app that acts as an intermediary when opening URLs, letting users inspect, clean, and modify links befor… | 83 | 2082 | active |
| meetrevision/playbook ReviOS Playbook is a collection of Windows system modifications applied via AME Wizard to create a lightweight, privacy-focused, performanc… | 70 | 2063 | active |
| tensorflow/privacy TensorFlow Privacy is a Python library providing TensorFlow optimizers for training machine learning models with differential privacy. It i… | 64 | 2036 | active |
| daymade/Twitter-Block-Porn A Tampermonkey/Greasemonkey userscript that batch-blocks Twitter/X accounts from shared blocklists of porn-spam scammers. It simulates Twit… | 74 | 2029 | active |
| Cookie-AutoDelete/Cookie-AutoDelete A Firefox, Chrome, and Edge WebExtension that automatically deletes cookies and other browsing site data when a tab closes, the domain chan… | 46 | 2016 | active |
| Producdevity/gamehub-lite GameHub Lite is a community-maintained patched version of the GameHub Android app that strips telemetry, bloat, and account requirements wh… | 71 | 2000 | active |
| hBlock hBlock is a POSIX-compliant shell script that aggregates domains serving ads, trackers, and malware from multiple blocklist sources and gen… | 62 | 1991 | active |
| i2ii/i BHcloud appears to be a commercial VPN/proxy subscription service providing mirror websites for users in mainland China and overseas, with … | 32 | 1962 | active |
| meta-pytorch/opacus Opacus is a PyTorch library for training neural networks with differential privacy via DP-SGD, requiring minimal code changes through its P… | 73 | 1960 | active |
| guofei9987/text_blind_watermark A Python library that embeds invisible blind watermarks into plain text without changing its appearance or readability, using a password-pr… | 37 | 1960 | active |
| xM4ddy/OFGB OFGB is a free Windows GUI tool written in C# with WPF that disables ads introduced across Windows 11 (Start Menu, File Explorer, etc.) by … | 16 | 7438 | maintenance |
| nymtech/nym Nym is a decentralized privacy platform built in Rust, centered on a mixnet that shuffles Sphinx packets to protect network-level metadata,… | 96 | 1950 | active |
| aj3423/SpamBlocker SpamBlocker is an Android app that blocks spam calls and SMS messages without replacing your default call or messaging apps. It works as a … | 93 | 1915 | active |
| AdguardTeam/AdguardForAndroid AdGuard for Android is a system-wide content blocker for Android that blocks ads, trackers, and malvertising across browsers and apps. This… | 97 | 1903 | active |
| rosuH/EasyWatermark EasyWatermark is an open-source Android app for adding text or image watermarks to photos, built to protect sensitive images from leaking o… | 100 | 1900 | active |
| younesaassila/ttv-lol-pro TTV LOL PRO is a browser extension that removes most livestream ads from Twitch by routing streams through standard HTTP proxies. It is a f… | 78 | 1889 | active |
| iliyami/MacSai Mac Sai is a free, open-source macOS application that cleans junk files, scans for malware, uninstalls apps completely, and visualizes disk… | 82 | 1870 | active |
| HMBSbige/ShadowsocksR-Android A ShadowsocksR proxy client for Android written in Kotlin, forked from the shadowsocks-android codebase. It lets Android users route traffi… | 10 | 1830 | active |
| guardianproject/haven Haven is an open-source Android application that turns a spare phone into a physical security monitor using its on-device sensors (motion, … | 23 | 6824 | maintenance |
| elder-plinius/ST3GG ST3GG is an all-in-one steganography toolkit that hides secret data inside images, audio, documents, and network packets using 100+ encodin… | 60 | 1813 | active |
| mozilla/fx-private-relay Firefox Relay is a Mozilla service that generates email aliases (masks) which forward messages to your real inbox, hiding your personal add… | 95 | 1802 | active |
| DanielLavrushin/b4 B4 (Bye Bye Big Bro) is a Linux service that bypasses Deep Packet Inspection (DPI) censorship by rewriting network packets via fragmentatio… | 81 | 1787 | active |
| bulianglin/psub psub is a proxy subscription conversion tool deployed on Cloudflare Workers that acts as a reverse proxy for subscription conversion backen… | 10 | 1769 | active |
| flik6/Free-Node A repository that aggregates free proxy node information from various public sources and publishes hourly-updated Clash and v2ray subscript… | 74 | 1757 | active |
| ghostery/ghostery-extension Ghostery is a browser extension that blocks ads, trackers, and cookie pop-ups across Firefox, Chrome, Opera, Edge, Safari, and Yandex. It p… | 95 | 1755 | active |
| AdguardTeam/AdguardForiOS AdGuard for iOS is an open-source ad-blocking and privacy app for iPhone and iPad that blocks ads in Safari via content blocking rules. It … | 93 | 1711 | active |
| Moustachauve/cookie-editor Cookie-Editor is an open-source browser extension for creating, editing, deleting, importing and exporting cookies on the current tab. It w… | 64 | 1705 | active |
| Bromite Bromite is a Chromium fork for Android with a built-in ad-blocking engine and privacy enhancements such as anti-fingerprinting flags, DNS-o… | 23 | 6319 | maintenance |
| Myzel394/Alibi Alibi is an Android app that continuously records audio and video in the background, keeping a rolling buffer of the last 30 minutes that c… | 46 | 1695 | active |
| reek/anti-adblock-killer Anti-Adblock Killer is a userscript (AakScript) plus an AdBlock-style filter list (AakList) that together prevent websites from detecting a… | 23 | 6214 | maintenance |
| AdGuard Home For Android (Magisk Module) A Magisk module that runs AdGuard Home on rooted Android devices to block ads by redirecting and filtering DNS requests. It ships with buil… | 87 | 1638 | active |
| za515217965/OKBrowser OKBrowser is a free Chromium-based anti-fingerprint browser for Windows that lets users create and manage multiple isolated browser profile… | 48 | 1636 | active |
| Jelmerro/Vieb Vieb is a free, open-source web browser built on Electron/Chromium that provides Vim-style modal keyboard bindings for navigating the web. … | 87 | 1624 | active |
| Xatta-Trone/medium-parser-extension A browser extension for Chrome, Edge, and Firefox that lets users read member-only articles on medium.com and Medium-based sites (e.g. Towa… | 56 | 1590 | active |
| DimensionDev/Maskbook Mask Network is a browser extension that bridges Web2 social media platforms (X, Facebook, Instagram, Minds, Mirror) with Web3 services. It… | 97 | 1586 | active |
| QuiteAFancyEmerald/InvisiProxy InvisiProxy LTS (formerly Holy Unblocker) is a self-hostable Node.js web proxy service that lets users access blocked websites and Tor/Onio… | 97 | 1584 | active |
| ORB-HD/deface deface is a Python command-line tool that automatically anonymizes human faces in videos and photos. It detects faces in each frame and app… | 23 | 1565 | stable |
| sharmajv/vpn A completely free Android VPN client (小三VPN / 3VPN) that requires no registration, has no speed or traffic limits, and shows no ads. It sup… | 32 | 5709 | maintenance |
| dessalines/thumb-key Thumb-Key is a privacy-conscious Android keyboard app designed for efficient one-handed thumb typing, inspired by MessagEase. It is a Kotli… | 93 | 1556 | active |
| MikeWang000000/FakeHTTP FakeHTTP is a Linux command-line tool that obfuscates TCP connections by disguising them as HTTP traffic using Netfilter Queue (NFQUEUE). I… | 31 | 1549 | active |
| mysk-research/loupe Loupe is an open-source iOS and iPadOS app that demonstrates device fingerprinting by showing raw values from public iOS APIs that any thir… | 56 | 1542 | active |
| Alex313031/Mercury Mercury is a Firefox fork with compiler optimizations (AVX, AES, LTO, PGO) and privacy/security patches drawn from LibreWolf, Waterfox, Gho… | 62 | 1541 | active |
| ReSo7200/InstaEclipse InstaEclipse is an LSPosed/Xposed module for Instagram that adds features like Ghost Mode, ad-free browsing, developer options, and distrac… | 89 | 1540 | active |
| shirokhorshid/shirokhorshid-android Shir o Khorshid is an independently maintained, community fork of the open-source Psiphon Android VPN/circumvention client, adding extra co… | 66 | 1540 | active |
| Shawn-Shan/fawkes Fawkes is a privacy protection tool from University of Chicago researchers that adds imperceptible adversarial perturbations to photos to p… | 23 | 5614 | maintenance |
| kkapsner/CanvasBlocker A Firefox browser extension that protects users from browser fingerprinting by blocking or faking readouts of JavaScript APIs such as canva… | 73 | 1525 | active |
| globaleaks/globaleaks-whistleblowing-software GlobaLeaks is a free, open-source whistleblowing platform that lets any organization set up and maintain a secure, anonymous reporting syst… | 91 | 1521 | stable |
| kiprotect/klaro Klaro is an open-source consent management platform (CMP) for websites that manages user consent for third-party apps and trackers. It is a… | 34 | 1520 | active |
| ray-lothian/UserAgent-Switcher A highly configurable browser extension that spoofs the User-Agent string across Chrome, Firefox, Edge, and Opera. It overrides HTTP reques… | 75 | 1517 | active |
| manojVivek/medium-unlimited A browser extension for Chrome and Firefox that unlocks Medium.com membership-only articles by bypassing the paywall. It supports medium.co… | 10 | 5462 | maintenance |
| duckduckgo/duckduckgo-privacy-extension DuckDuckGo Privacy Essentials is a browser extension for Firefox, Chrome, Edge, and Opera that blocks third-party trackers and ads, manages… | 99 | 1501 | active |
| halo/LinkLiar LinkLiar is a free, open-source macOS status menu application written in Swift for spoofing the MAC addresses of Wi-Fi and Ethernet interfa… | 35 | 1491 | active |
| xtclovver/RKNHardering An Android application that detects VPN and proxy configurations on a device, implementing the methodology used by Roskomnadzor (RKN) to id… | 72 | 1466 | active |