Open-source privacy software
2306 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.
2306 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| xchacha20-poly1305/husi Husi is a multiplatform proxy client built with Kotlin and Compose Multiplatform, using a Go-based libcore (sing-box) backend. It supports … | 90 | 1873 | active |
| Freedium-cfd/web Freedium is a self-hostable web application that renders Medium.com articles behind the paywall for free, serving as the codebase behind fr… | 73 | 1872 | active |
| tanrax/maza-ad-blocking Maza is a local ad blocker written as a single Bash script that blocks ads at the DNS level by editing the operating system's hosts file, w… | 72 | 1872 | active |
| inulute/medium-unlocker Medium Unlocker is an Android app (with an accompanying web frontend) that bypasses Medium's paywall by redirecting article URLs to the fre… | 92 | 1870 | 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 |
| TypeWhisper/typewhisper-mac TypeWhisper is a macOS application for local, on-device speech-to-text dictation built on WhisperKit, with optional cloud transcription via… | 79 | 1869 | active |
| 1234567Yang/cf-proxy-ex A Cloudflare Workers-based super proxy that lets users access websites like GitHub, DuckDuckGo, and StackOverflow through a different URL w… | 74 | 1865 | active |
| ShunCai/QZoneExport A browser extension (Chrome/Edge/Firefox, Manifest V3) that backs up QQ Zone data—posts, blogs, private diaries, albums, videos, comments, … | 84 | 1863 | active |
| denislupookov/altersend AlterSend is an open-source cross-platform app for sending files directly between devices over the internet via P2P connections, with end-t… | 78 | 1863 | active |
| complexorganizations/wireguard-manager A shell-based tool that automates the installation, configuration, and management of WireGuard VPN servers. It provides a user-friendly way… | 45 | 1860 | active |
| mwmbl/mwmbl Mwmbl is an open source, non-profit web search engine with no ads or tracking, where the community determines rankings and runs distributed… | 75 | 1858 | active |
| Alanrk/LazyCat-Bookmark-Cleaner A browser extension (Chrome and Edge) that intelligently cleans and organizes bookmarks by detecting invalid links, duplicates, and empty f… | 46 | 1852 | active |
| seedvault-app/seedvault Seedvault is an open-source backup application for the Android Open Source Project that backs up and restores app data, with encryption via… | 75 | 1850 | active |
| Place1/wg-access-server wg-access-server is a single-binary WireGuard VPN server with a built-in web UI for managing and registering devices. It supports user auth… | 32 | 1850 | active |
| mailvelope/mailvelope Mailvelope is a browser extension for Chrome and Firefox that adds OpenPGP end-to-end email encryption to arbitrary webmail providers. It u… | 85 | 1847 | active |
| sniptt-official/ots OTS is a Go CLI tool for sharing end-to-end encrypted secrets (API keys, passwords, signing secrets) via one-time URLs. Secrets are destroy… | 34 | 1845 | active |
| sbwml/luci-app-mosdns A LuCI web interface plugin for OpenWrt that manages MosDNS, a plugin-based DNS forwarder. It lets users configure encrypted DNS upstreams … | 96 | 1843 | active |
| Jrohy/multi-v2ray A Python-based management script for deploying and administering multi-user V2Ray/Xray proxy servers on Linux. It provides a wizard-driven … | 23 | 6944 | maintenance |
| ethereal-developers/OpenScan OpenScan is an open-source Android document scanner app built with Flutter that converts photos of documents, notes, and business cards int… | 86 | 1837 | active |
| Aptabase Aptabase is an open-source, privacy-first analytics platform for mobile, desktop, and web apps, serving as an alternative to Firebase/Googl… | 74 | 1836 | active |
| crossxx-labs/free-proxy A repository that publishes free Clash subscription links for SSR, VMess, VLESS, Trojan, and Hysteria2 proxy servers, refreshed every few h… | 73 | 1835 | active |
| Delta Chat Delta Chat Android is the official Android client for Delta Chat, a decentralized private messenger that runs over email infrastructure usi… | 98 | 1832 | active |
| futo-org/grayjay-android Grayjay (PlatformPlayer) is an Android media app by FUTO that aggregates multiple video websites as configurable sources, letting users sea… | 74 | 1831 | active |
| Magma Encrypted Email System Magma is an encrypted email server daemon written in C, providing SMTP, POP, IMAP, and HTTP protocol support along with a bundled webmail s… | 33 | 1831 | 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 |
| MortezaBashsiz/CFScanner A multi-language tool (Bash, Python, Go, Kotlin/Android, Docker) that scans millions of Cloudflare IP addresses to find ones that work with… | 85 | 1829 | active |
| bakito/adguardhome-sync A Go tool that synchronizes AdGuard Home configuration from an origin instance to one or more replica instances. It supports scheduled sync… | 97 | 1827 | active |
| nilsteampassnet/TeamPass TeamPass is a free, self-hosted collaborative password manager written in PHP/MySQL, offering folder-level access control, AES-256-GCM auth… | 92 | 1827 | active |
| surgioproject/surgio Surgio is a Node.js-based proxy rule generator that produces configuration rules for Surge, Clash, Quantumult X, Loon, Stash, and sing-box.… | 95 | 1826 | active |
| petronny/gfwlist2pac A tool that automatically converts the gfwlist proxy rules into a PAC (Proxy Auto-Config) file every day. The generated gfwlist.pac is serv… | 75 | 1819 | active |
| jacoblee93/fully-local-pdf-chatbot A Next.js web application that lets users chat with uploaded PDF documents entirely locally, performing chunking, embedding, vector storage… | 49 | 1817 | active |
| JHubi1/ollama-app A modern, easy-to-use Flutter client app for Ollama that connects to an Ollama server over the local network to chat with local LLMs. It ru… | 59 | 1816 | 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 |
| redsolution/xabber-android Xabber is an open-source XMPP (Jabber) chat client for Android, written in Java and licensed under GPLv3. It supports multiple accounts, en… | 48 | 1811 | active |
| FossifyOrg/File-Manager Fossify File Manager is an open-source, ad-free Android file manager for browsing, organizing, compressing, and securing files on device st… | 95 | 1806 | stable |
| OpenVPN/openvpn-gui OpenVPN GUI is a graphical frontend for OpenVPN on Windows 10 and 11, providing a notification-area icon to start and stop VPN tunnels, vie… | 75 | 1806 | active |
| wm94i/Work-Review Work Review is a local-first desktop application that automatically tracks which apps you used, websites you visited, window titles, usage … | 79 | 1804 | 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 |
| deluge-torrent/deluge Deluge is a lightweight, cross-platform BitTorrent client built on libtorrent, using a daemon/client split so downloads run headless while … | 60 | 1800 | stable |
| Greedeks/GTweak GTweak is a portable Windows utility written in C# for optimizing, debloating, and customizing Windows 10/11 setups. It provides tweaks suc… | 91 | 1797 | active |
| x011/smtp-tunnel-proxy A Python-based covert tunneling tool that disguises TCP traffic as SMTP email sessions to evade Deep Packet Inspection firewalls. It expose… | 37 | 1795 | active |
| polius/FileSync FileSync is a self-hosted web application for sending files from one device to many in real time over encrypted peer-to-peer WebRTC connect… | 93 | 1789 | 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 |
| nsfw-filter/nsfw-filter A free, open-source, privacy-focused browser extension that blocks NSFW images using on-device AI classification with TensorFlow.js. It hid… | 91 | 1786 | active |
| jasonwong1991/easy_proxies Easy Proxies is a Go-based proxy pool manager built on sing-box that aggregates many upstream proxy nodes into a single stable, health-chec… | 84 | 1783 | active |
| GreenmaskIO/greenmask Greenmask is an open-source CLI utility for logical database dumping, anonymization, synthetic data generation, and restoration, production… | 94 | 1782 | active |
| kitsumed/ShizuCallRecorder ShizuCallRecorder is a free, open-source Android app that records phone calls on non-rooted devices running Android 11+ by leveraging ADB s… | 79 | 1778 | active |
| adsbypasser/adsbypasser AdsBypasser is a lightweight userscript that automatically skips countdown ads, continue/redirect pages, and prevents ad pop-up windows acr… | 99 | 1775 | active |
| EteSync (Etebase) The Etebase (EteSync 2.0) server, a Django-based backend that lets you self-host end-to-end encrypted synchronization of contacts, calendar… | 32 | 1774 | stable |
| OwnTracks OwnTracks for Android is an open-source mobile app that tracks and reports your device's location over MQTT or HTTP to a server of your cho… | 88 | 1770 | 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 |
| SpatiumPortae/portal Portal is a command-line file transfer utility for sending files and folders between any two computers. It uses PAKE2 end-to-end encryption… | 23 | 1765 | 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 |
| linuxserver/docker-qbittorrent A Docker container image packaging the qBittorrent BitTorrent client, maintained by LinuxServer.io. It provides regularly updated builds wi… | 96 | 1754 | active |
| NeoFreeBird/app NeoFreeBird is a modified Twitter/X app (IPA) for iOS/iPadOS that reverts the X rebranding to the classic bird branding and bundles an upda… | 84 | 1749 | active |
| ImMALWARE/bash-warp-generator A shell script that generates Cloudflare WARP VPN configuration files for AmneziaWG (WireGuard-based) and Clash (MASQUE-based) clients. It … | 66 | 1747 | active |
| Litlyx/litlyx Litlyx is a privacy-first, cookieless web analytics platform with an AI-powered dashboard, installable via a single script snippet or npm p… | 51 | 1746 | active |
| hwdsl2/openvpn-install A Bash script that automates setting up an OpenVPN server on a wide range of Linux distributions, including Ubuntu, Debian, CentOS, Fedora,… | 76 | 1745 | active |
| Watfaq/clash-rs ClashRS is a rule-based network proxy written in Rust supporting many custom protocols (Shadowsocks, VMess, VLESS, Trojan, Hysteria2, WireG… | 99 | 1738 | active |
| SierraSoftworks/tailscale-unifi A set of shell scripts that install and run Tailscale as a persistent systemd service on UniFi OS devices such as UniFi Cloud Gateways. It … | 95 | 1734 | active |
| xbrowsersync/app xBrowserSync is a free, privacy-focused tool for syncing browser data (bookmarks, settings, etc.) between different browsers and devices. T… | 62 | 1732 | active |
| Whitelist Bypass A Go-based tool that tunnels internet traffic through video calling platforms (VK Call, Yandex Telemost, WB Stream) to bypass government wh… | 81 | 1731 | active |
| cloudflare/circl CIRCL is Cloudflare's Go library of cryptographic primitives covering post-quantum algorithms (ML-KEM/Kyber, ML-DSA/Dilithium, SIKE/CSIDH),… | 91 | 1727 | active |
| claffin/cloudproxy CloudProxy is a self-hosted Python tool that provisions and manages proxy servers across multiple cloud providers, rotating IPs to improve … | 77 | 1727 | active |
| upspin/upspin Upspin is an experimental framework of protocols and reference implementations providing a secure, global naming system for sharing files a… | 43 | 6405 | maintenance |
| kdrag0n/safetynet-fix A Magisk module (Zygisk-based, with an older Riru version) that works around Google's SafetyNet and Play Integrity hardware attestation che… | 23 | 6387 | maintenance |
| keepassium/KeePassium KeePassium is a KeePass-compatible password manager app for iOS and macOS, written in Swift. It supports all KeePass database formats (kdb,… | 68 | 1714 | 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 |
| molenzwiebel/Deceive Deceive is a Windows tray application that lets players appear offline in League of Legends, VALORANT, and Legends of Runeterra by sitting … | 90 | 1711 | active |
| CatimaLoyalty/Android Catima is a free, open-source Android app for storing loyalty cards and tickets with a built-in barcode scanner. It works fully offline, co… | 98 | 1707 | active |
| fangfufu/Linux-Fake-Background-Webcam A Python application that creates a virtual webcam on GNU/Linux with fake backgrounds, including background replacement, blurring, animated… | 59 | 1706 | 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 |
| xeefei/X-Panel X-Panel is a self-hosted web panel built on Xray Core for managing multi-protocol, multi-user proxy servers (VLESS, XTLS, Reality, XHTTP, V… | 88 | 1704 | active |
| chroxify/haptic Haptic is an open-source, local-first, privacy-focused markdown note-taking app built with Tauri and Svelte, using PGlite as a local databa… | 33 | 1704 | 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 |
| ZeroDeng01/sublinkPro SublinkPro is a self-hosted proxy subscription management and conversion platform built with a Go backend and React web UI. It provides sma… | 81 | 1697 | active |
| 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 |
| ellermister/mtproxy A one-click shell script and Docker image for installing MTProxy (MTProto proxy) with Fake TLS disguise for Telegram clients. It fronts MTP… | 70 | 1692 | active |
| BigBoiCJ/SteamAutoCracker An open-source Python tool with a GUI that automatically removes Steam DRM from games by configuring Steam emulators and applying Steamless… | 23 | 1692 | active |
| Teraskull/PyDebloatX PyDebloatX is a Python GUI application for uninstalling default Windows 10 apps (bloatware). It offers a safe, intuitive interface where al… | 52 | 1689 | active |
| ulsklyc/yuvomi Yuvomi is a self-hosted, privacy-first family planner web application that bundles tasks, calendar, budget, shopping, meals, pantry, docume… | 78 | 1687 | active |
| Forward Email Forward Email is a 100% open-source, privacy-focused email service providing free email forwarding for custom domains, plus outbound SMTP, … | 95 | 1686 | active |
| vladimiry/ElectronMail ElectronMail is an unofficial Electron-based desktop client for ProtonMail, written in TypeScript with Angular. It provides an enhanced des… | 93 | 1680 | active |
| NoDPI NoDPI is a Python utility that bypasses Deep Packet Inspection (DPI) censorship by running a local proxy server that fragments TLS ClientHe… | 78 | 1679 | active |
| secluso/core Secluso is an open-source, privacy-preserving home security camera system built for Raspberry Pi, featuring end-to-end encrypted remote acc… | 69 | 1678 | active |
| fire-keeper/BlindWatermark A Python library and CLI/GUI tool that embeds invisible blind watermarks into images using discrete wavelet transforms, protecting creators… | 23 | 1678 | active |
| lissy93/AdGuardian-Term AdGuardian-Term is a terminal-based (TUI) tool written in Rust that provides real-time monitoring and statistics for an AdGuard Home instan… | 88 | 1677 | 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 |
| freeotp/freeotp-android FreeOTP is an open-source two-factor authentication app for Android that generates one-time passwords using the HOTP and TOTP standards. To… | 74 | 1676 | active |
| ustaxes/UsTaxes UsTaxes is a free, open-source tax filing application for preparing and filing the US Federal 1040 form, available as a web app and a stand… | 66 | 1673 | active |
| Lozy/danted A shell script that automates installing and configuring the Dante SOCKS5 proxy server on Linux systems, with Docker support. It auto-detec… | 32 | 1672 | active |
| scito/extract_otp_secrets A Python CLI tool that extracts one-time password (TOTP/HOTP) secrets from QR codes exported by two-factor authentication apps like Google … | 89 | 1668 | active |
| zama-ai/tfhe-rs TFHE-rs is a pure Rust implementation of the TFHE fully homomorphic encryption scheme, enabling boolean and integer arithmetic over encrypt… | 97 | 1667 | active |
| mkiol/dsnote Speech Note is a Linux desktop and Sailfish OS application for note taking, reading, and translating text using offline Speech to Text, Tex… | 92 | 1664 | active |
| coral-xyz/backpack Backpack is an open-source crypto wallet browser extension built in TypeScript, serving as a home for xNFTs and supporting Solana, Ethereum… | 23 | 1660 | active |
| Data-Centric-AI-Community/fg-data-synthetic A Python library for generating synthetic tabular and time-series data using state-of-the-art generative models such as GANs (including CTG… | 87 | 1659 | active |
| collinbarrett/FilterLists FilterLists is an independent, comprehensive web directory and REST API cataloging filter and host lists for blocking advertisements, track… | 76 | 1657 | active |
| jacklul/pihole-updatelists A PHP CLI script that automatically keeps Pi-hole's ad-blocking lists in sync with remote sources. It manages list additions and removals w… | 68 | 1656 | active |