function: cryptography
1245 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| clawsoftware/clawPDF clawPDF is an open-source virtual printer for Windows that converts printed output into PDF, PDF/A, OCR text, SVG, and various image format… | 23 | 1940 | active |
| alibaba/xquic XQUIC is Alibaba's cross-platform C library implementing the IETF QUIC and HTTP/3 protocols for both client and server use. It supports QUI… | 94 | 1915 | active |
| nymtech/nym Nym is a decentralized privacy platform built in Rust, centered on a mixnet that shuffles Sphinx packets to protect network-level metadata,… | 99 | 1912 | active |
| web-push-libs/web-push-php A PHP library implementing the Web Push protocol (RFC 8030) for sending push notifications to browsers via service workers. It handles subs… | 91 | 1890 | active |
| camlworks/dream Dream is a tidy, feature-complete web framework for OCaml and ReasonML with a flat, one-module API. It supports WebSockets, GraphQL, HTTP/2… | 60 | 1878 | 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… | 48 | 1856 | active |
| ofdrw/ofdrw OFDRW is an open-source Java library for reading, writing, and manipulating OFD (Open Fixed-layout Document) files, a Chinese national stan… | 93 | 1854 | active |
| zhlynn/zsign zsign is a fast, cross-platform open-source alternative to Apple's codesign tool for re-signing iOS .ipa packages, Mach-O binaries, and .ap… | 98 | 1846 | active |
| Eugeny/russh Russh is a low-level, Tokio-based SSH2 client and server library for Rust, forked from Thrussh. It supports a wide range of ciphers, key ex… | 99 | 1840 | active |
| 188080501/JQTools JQTools is an open-source developer toolbox built with Qt/QML/C++ that bundles common small utilities: text processing, hash and encryption… | 90 | 1840 | active |
| root-gg/plik Plik is a self-hosted temporary file upload and sharing system similar to WeTransfer, written in Go with a Vue 3 web UI and a powerful CLI … | 91 | 1814 | 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 | 6814 | maintenance |
| LibPDF-js/core LibPDF is a modern TypeScript PDF library for parsing, modifying, generating, and signing PDF documents. It combines lenient parsing (like … | 80 | 1803 | active |
| solana-foundation/pay A Rust CLI that acts as a payment layer for HTTP, wrapping tools like curl and AI agents (Claude, Codex, Goose) to automatically handle HTT… | 99 | 1762 | active |
| xaitax/Chrome-App-Bound-Encryption-Decryption A Windows post-exploitation research tool that bypasses Chromium's App-Bound Encryption using direct syscall-based reflective process hollo… | 63 | 1762 | active |
| ronf/asyncssh AsyncSSH is a Python library providing asynchronous client and server implementations of the SSHv2 protocol, including SFTP and SCP, built … | 76 | 1753 | stable |
| jm33-m0/emp3r0r emp3r0r is an open-source post-exploitation framework and command-and-control (C2) system written in Go, targeting Linux and Windows hosts.… | 95 | 1741 | active |
| 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… | 63 | 1741 | 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,… | 77 | 1728 | active |
| Watfaq/clash-rs ClashRS is a rule-based network proxy written in Rust supporting many custom protocols (Shadowsocks, VMess, VLESS, Trojan, Hysteria2, WireG… | 97 | 1704 | active |
| open-mercato/open-mercato Open Mercato is an open-source TypeScript foundation framework for building CRM, ERP, and commerce applications on Next.js, with multi-tena… | 84 | 1683 | active |
| rebeyond/Behinder Behinder ('冰蝎') is a cross-platform Java client for managing encrypted webshells on compromised web servers running PHP, Java, or .NET. It … | 23 | 6191 | maintenance |
| secluso/core Secluso is an open-source, privacy-preserving home security camera system built for Raspberry Pi, featuring end-to-end encrypted remote acc… | 72 | 1661 | active |
| shadowsocksr-backup/shadowsocksr A Python port of ShadowsocksR, a fast encrypted tunnel proxy that helps users bypass firewalls and censorship. It provides a command-line s… | 32 | 6131 | maintenance |
| facebook/mvfst MVFST (move fast) is a C++ client and server implementation of the IETF QUIC transport protocol developed by Facebook. It provides a perfor… | 77 | 1657 | active |
| kulikov0/whitelist-bypass A Go-based tool that tunnels internet traffic through video calling platforms (VK Call, Yandex Telemost, WB Stream) to bypass government wh… | 80 | 1610 | active |
| afkT/DevUtils DevUtils is an Android utility library (Java/Kotlin) offering 300+ tool classes organized by functional modules, plus companion libraries f… | 85 | 1606 | active |
| doxx/darkflare DarkFlare is a Go command-line tool that tunnels TCP traffic over HTTPS through CDNs like Cloudflare, disguising it as ordinary web traffic… | 53 | 1595 | active |
| NethermindEth/nethermind Nethermind is a high-performance Ethereum execution client built on .NET, in production since 2017. It offers fast snap sync, high-throughp… | 98 | 1588 | stable |
| solana-foundation/solana-go A Go SDK library and RPC client for the Solana blockchain, providing interfaces to Solana's JSON RPC and WebSocket APIs. It supports key ma… | 99 | 1577 | active |
| B16f00t/whapa Whapa is a Python-based forensic toolset for parsing and analyzing WhatsApp databases from Android and iOS devices. It includes tools for d… | 75 | 1575 | active |
| php-standard-library/php-standard-library PSL is a standard library for PHP inspired by Hack's HSL, providing consistent, well-typed APIs for collections, async, I/O, cryptography, … | 94 | 1561 | active |
| robocorp/rpaframework RPA Framework is a collection of open-source Python libraries and tools for Robotic Process Automation, usable from both Robot Framework an… | 99 | 1550 | active |
| robbiehanson/CocoaHTTPServer CocoaHTTPServer is a small, lightweight, embeddable HTTP server library for Mac OS X and iOS applications written in Objective-C. It suppor… | 32 | 5609 | maintenance |
| ProtonMail/proton-bridge Proton Mail Bridge is a desktop application that runs local IMAP and SMTP servers, allowing standard email clients to send and receive encr… | 94 | 1536 | active |
| nfrastack/db-backup A multi-engine database backup tool (Docker image and single Go binary) that backs up MySQL/MariaDB, Postgres, MongoDB, Redis, SQLite, MSSQ… | 99 | 1533 | active |
| fosslife/devtools-x DevTools-X is a cross-platform, offline-first desktop application bundling 41+ developer utilities (JSON formatting, Base64, JWT decoding, … | 72 | 1532 | active |
| firedancer-io/firedancer Firedancer is Jump Crypto's from-scratch Solana validator client written in C, designed for extreme performance and security with a restric… | 95 | 1510 | active |
| balzack/databag Databag is a fast, lightweight, self-hosted federated messenger with end-to-end encryption, audio/video calls via WebRTC, and topic-based t… | 62 | 1483 | active |
| ethersphere/bee Bee is a Go client for the Swarm network, a decentralized peer-to-peer storage and communication network built on the Gnosis blockchain. Ru… | 95 | 1482 | active |
| wneessen/go-mail go-mail is a modern, feature-rich Go library for composing and sending email over SMTP. It provides mail composition, encoding, DKIM and S/… | 96 | 1471 | active |
| laochiangx/Common.Utility A large collection of C# utility and helper classes covering common .NET development tasks such as Excel/CSV/PDF handling, HTTP requests, J… | 32 | 5307 | maintenance |
| Water-Melon/Melon Melon is a generic cross-platform C library (C99) bundling algorithms, data structures, functional components (memory pool, thread pool, ev… | 70 | 1460 | active |
| JakubMelka/PDF4QT PDF4QT is an open-source PDF editor, viewer, and rendering library written in C++ with Qt, implementing PDF 2.0 functionality. It ships a C… | 87 | 1459 | active |
| submato/xhscrawl A Python-based reverse-engineering toolkit for Xiaohongshu (XHS) web APIs, focusing on generating the encrypted x-s signature parameter via… | 72 | 1452 | active |
| jawj/IKEv2-setup A Bash script that configures a fresh Ubuntu Server LTS install as an IKEv2 VPN server using strongSwan, with Let's Encrypt certificates an… | 57 | 1433 | active |
| ChainSafe/lodestar Lodestar is a TypeScript implementation of the Ethereum Consensus (proof-of-stake) specification, providing a beacon node, validator client… | 98 | 1419 | active |
| yuzeguitarist/Deck Deck is a native, privacy-first clipboard manager for macOS built with Swift and SwiftUI. It records clipboard history (text, images, files… | 69 | 1407 | active |
| hbons/SparkleShare SparkleShare is an open-source file sharing and collaboration app that syncs a special folder on your computer with any Git repository, wor… | 65 | 4980 | maintenance |
| nilstate/icey icey is a modular C++20 real-time media toolkit that unifies WebRTC, FFmpeg encoding/decoding, signalling, and TURN relay into a single Pac… | 92 | 1367 | active |
| Diniboy1123/usque An open-source Go reimplementation of the Cloudflare WARP client's MASQUE mode using the Connect-IP (RFC 9484) protocol. It offers multiple… | 82 | 1361 | active |
| x364e3ab6/DudeSuite DudeSuite is a lightweight, integrated web penetration testing toolkit distributed as a desktop application for Windows and macOS. It bundl… | 85 | 1336 | active |
| XRPLF/xrpl.js xrpl.js is the official JavaScript/TypeScript SDK for interacting with the XRP Ledger from Node.js and web browsers. It provides wallet/key… | 99 | 1327 | active |
| copperspice/copperspice CopperSpice is a set of cross-platform C++ libraries (Core, Gui, Network, Multimedia, SQL, OpenGL, Vulkan, WebKit, XML, and more) derived f… | 74 | 1324 | active |
| BelledonneCommunications/linphone-android Linphone Android is an open-source SIP-based softphone application for voice and video calls over IP, plus instant messaging and conferenci… | 98 | 1300 | active |
| wechatpay-apiv3/wechatpay-go The official Go SDK for WeChat Pay APIv3, providing typed service clients, an HTTP client with request signing and response verification, a… | 36 | 1286 | active |
| apache/impala Apache Impala is a massively parallel, distributed SQL query engine written in C++ for analyzing petabyte-scale data stored in open data an… | 67 | 1285 | stable |
| verida/verida-js The official TypeScript SDK monorepo for the Verida Network, a decentralized network for self-sovereign identity and encrypted personal dat… | 39 | 1282 | active |
| WhiteDNS/WhiteDNS-Android WhiteDNS is a source-available Android application that runs a local DNS tunneling client with both proxy (SOCKS5/HTTP) and VPN (VpnService… | 73 | 1280 | active |
| jingguanzhang/gift-book A fully offline, zero-backend single-page web application for managing cash gift ledgers (礼金/份子钱) at Chinese weddings, funerals, and other … | 54 | 1272 | active |
| mucommander/mucommander muCommander is a lightweight, open-source, dual-pane file manager written in Java that runs on any OS with Java support. It offers a virtua… | 90 | 1264 | active |
| starknet-io/starknet.js Starknet.js is the official JavaScript/TypeScript library for interacting with the Starknet L2 network, a ZK-rollup scaling solution for Et… | 93 | 1256 | active |
| KaisenAmin/c_std A pure C17 library that reimplements a large slice of the C++ Standard Library (containers, algorithms, smart pointers) plus Python-style u… | 67 | 1246 | active |
| jitsi/jitsi Jitsi Desktop is a free open-source audio/video calling and instant messaging client written in Java, supporting SIP, XMPP/Jabber, IRC, and… | 61 | 4332 | maintenance |
| cloudflare/cloudflare-blog A collection of code samples accompanying posts on the Cloudflare Blog, covering topics like networking, security, performance, and edge co… | 67 | 1226 | active |
| GaloisInc/cryptol Cryptol is a domain-specific language and interpreter for specifying cryptographic algorithms, developed by Galois. It provides an executab… | 80 | 1220 | active |
| category-labs/monad The execution component of a Monad blockchain node, written in C++. It contains a custom EVM implementation, a purpose-built database (Mona… | 99 | 1219 | active |
| cfal/shoes A high-performance multi-protocol proxy server written in Rust supporting HTTP, SOCKS5, VMess, VLESS, Shadowsocks, Trojan, Snell, Hysteria2… | 82 | 1210 | active |
| opengnb/opengnb OpenGNB is an open-source decentralized Software Defined Virtual Network (SDVN) that creates a layer-3 P2P VPN with strong NAT traversal, l… | 93 | 1203 | active |
| SimonSchubert/Kai Kai 9000 is an open-source, cross-platform AI assistant built with Kotlin Multiplatform that runs on Android, iOS, Windows, Mac, Linux, and… | 83 | 1191 | active |
| n0-computer/sendme Sendme is a Rust CLI tool for sending files and directories over the internet, built on the iroh and iroh-blobs protocols. It handles NAT h… | 88 | 1171 | active |
| WhiteNightShadow/hello_js_reverse_skill An AI-powered 'Skill' package for JavaScript reverse engineering that plugs into AI coding tools like Claude Code, Cursor, and Codex. It pr… | 78 | 1156 | active |
| nashaofu/shell360 Shell360 is a cross-platform SSH and SFTP client built with Tauri, React, and Rust, supporting Windows, macOS, Linux, Android, and iOS. It … | 91 | 1153 | active |
| mmalmi/nostr-vpn nostr-vpn is a Tailscale-style private mesh VPN written in Rust, built around a FIPS-backed data plane with a `nvpn` CLI/daemon, a shared n… | 77 | 1149 | active |
| burghardt/easy-wg-quick A shell script that generates WireGuard VPN configurations for a hub (VPN concentrator) and its peers, including QR codes for mobile client… | 91 | 1119 | active |
| Archmonger/django-dbbackup A Django application providing management commands to back up and restore project databases and media files using native database tools. It… | 85 | 1111 | active |
| CYQawa/YunX YunX (云析) is an Android app that parses cloud drive (netdisk) share links from services like Quark, UC, Thunder, Baidu, 139, and 123 Cloud,… | 79 | 1093 | active |
| hahwul/jwt-hack jwt-hack is a fast, single-binary Rust CLI toolkit for testing, analyzing, and attacking JSON Web Tokens (JWT) and JWE tokens. It supports … | 91 | 1075 | active |
| apache/ranger Apache Ranger is a framework to enable, monitor, and manage comprehensive data security across the Hadoop platform and beyond. It provides … | 77 | 1074 | stable |
| ArweaveTeam/arweave The official Erlang implementation of the Arweave protocol, a distributed, cryptographically verified permanent archive built on a cryptocu… | 87 | 1072 | stable |
| thehackingsage/hackdroid HackDroid is a curated collection of 364+ pentesting and security-related Android apps organized into categories like MITM, forensics, snif… | 32 | 1072 | active |
| gopcua/opcua A native Go implementation of the OPC/UA Binary Protocol for industrial automation communication. It provides client and server functionali… | 97 | 1058 | active |
| hyugogirubato/KeyDive KeyDive is a Python CLI tool that extracts Widevine L3 DRM keys and device credentials from rooted Android devices using Frida instrumentat… | 80 | 1058 | active |
| aws/aws-iot-device-sdk-embedded-C AWS's official C SDK for connecting embedded devices to AWS IoT, composed of modular libraries like coreMQTT, coreHTTP, coreJSON, and coreP… | 58 | 1056 | active |
| ApeWorX/ape Ape Framework is a Python-based Web3 development framework for compiling, testing, deploying, and interacting with smart contracts from a s… | 99 | 1053 | active |
| Cloxl/xhshow A pure-algorithm Python library that generates Xiaohongshu (XHS/RedNote) request signature headers such as x-s, x-s-common, x-t, and x-rap-… | 76 | 1052 | active |
| espressif/ESP8266_RTOS_SDK Espressif's official FreeRTOS-based software development kit for the ESP8266 chip, written in C and following the esp-idf style API. It pro… | 64 | 3563 | maintenance |
| dyc3/steamguard-cli A Rust command-line utility for setting up and using Steam Mobile Authenticator (2FA). It generates Steam Guard codes and handles trade, ma… | 93 | 1036 | active |
| net-ssh/net-ssh Net::SSH is a pure-Ruby implementation of the SSH2 client protocol, packaged as a Ruby gem. It lets Ruby programs open SSH connections to r… | 75 | 1022 | active |
| tempoxyz/tempo Tempo is a Rust-based blockchain purpose-built for stablecoin payments, built on the Reth EVM execution SDK with sub-second finality via Si… | 82 | 1016 | active |
| gcarmix/HexWalk HexWalk is a cross-platform GUI hex editor, viewer, and binary analyzer built on qhexedit2, Capstone, and Qt. It combines hex editing with … | 84 | 1011 | active |
| error311/FileRise FileRise is a self-hosted, web-based file manager and storage hub written in PHP and JavaScript, featuring per-folder ACLs, WebDAV access, … | 83 | 1007 | active |
| AthenZ/athenz Athenz is an open source platform for X.509 certificate-based service authentication and fine-grained role-based access control (RBAC) in d… | 100 | 1006 | active |
| odedshimon/BruteShark BruteShark is an open-source Network Forensic Analysis Tool (NFAT) that deeply inspects network traffic from PCAP/PCAPng files or live capt… | 23 | 3395 | maintenance |
| DhavalKapil/icmptunnel icmptunnel is a C command-line tool that transparently encapsulates IP traffic inside ICMP echo and reply packets, tunneling it through a p… | 23 | 3254 | maintenance |
| eclipse-paho/paho.mqtt.android Eclipse Paho Android Service is an MQTT client library written in Java for Android applications, supporting MQTT 3.1/3.1.1 with features li… | 32 | 3099 | maintenance |
| linsa-io/linsa.io Linsa is a privacy-focused messaging application that combines chat, tasks, notes, files, and payments into a single product with end-to-en… | 76 | 16859 | experimental |
| TheMRLL/WinXray WinXray is a Windows universal proxy client supporting Xray/V2Ray (vmess/vless), Shadowsocks, SSR, Trojan, Trojan-go, and NaïveProxy, built… | 23 | 2790 | maintenance |
| Lakr233/BBackupp BBackupp is a macOS application that automates backups of iOS devices, supporting encrypted, scheduled, and wireless backups over IP. It st… | 56 | 2626 | maintenance |
| wangyu-/tinyfecVPN A lightweight Linux VPN tool that uses Reed-Solomon forward error correction to reduce packet loss and improve TCP latency on high-latency,… | 23 | 2584 | maintenance |