Browse free open source Authentication software and projects below. Use the toggles on the left to filter open source Authentication software by OS, license, language, programming language, and project status.

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

    MongoDB Atlas is the developer-friendly database used to build, scale, and run gen AI and LLM-powered apps—without needing a separate vector database. Atlas offers built-in vector search, global availability across 115+ regions, and flexible document modeling. Start building AI apps faster, all in one place.
    Start Free
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    *NOTE* Migrated to http://github.com/cracklib/cracklib Next generation version of libCrack password checking library. As of Oct 2008 (reflected in 2.8.15 code release), licensed under LGPL.
    Leader badge
    Downloads: 2,833 This Week
    Last Update:
    See Project
  • 2
    JXplorer - A Java Ldap Browser

    JXplorer - A Java Ldap Browser

    Mature LDAP, LDIF and DSML client with i18n support.

    A java LDAP client with LDIF support, security (inc SSL, SASL & GSSAPI), translated into many languages (inc. Chinese), online help, user forms and many other features. The commercial version is available at https://jxworkbench.com for $9.95. It extends JXplorer to include: - custom LDAP reporting - to pdf, word etc. - Find and Replace with regexp and attribute substitution - A secure password vault to store directory connections - etc. Support for JXplorer and JXWorkbench is available at http://jxplorer.org. Commercial support available from sales@jxworkbench.com
    Leader badge
    Downloads: 969 This Week
    Last Update:
    See Project
  • 3
    LDAP Admin
    Windows LDAP editor, includes support for POSIX groups and accounts, SAMBA accounts, some Postfix objects and more
    Leader badge
    Downloads: 646 This Week
    Last Update:
    See Project
  • 4
    Gobuster

    Gobuster

    Directory/File, DNS and VHost busting tool written in Go

    Gobuster is a tool used to brute-force. This project is born out of the necessity to have something that didn't have a fat Java GUI (console FTW), something that did not do recursive brute force, something that allowed me to brute force folders and multiple extensions at once, something that compiled to native on multiple platforms, something that was faster than an interpreted script (such as Python), and something that didn't require a runtime. Provides several modes, like the classic directory brute-forcing mode, DNS subdomain brute-forcing mode, the mode that enumerates open S3 buckets and looks for existence and bucket listings, and the virtual host brute-forcing mode (not the same as DNS!). Since this tool is written in Go you need to install the Go language/compiler/etc. Full details of installation and set up can be found on the Go language website. Once installed you have two options. You need at least go 1.16.0 to compile gobuster.
    Downloads: 83 This Week
    Last Update:
    See Project
  • Grafana: The open and composable observability platform Icon
    Grafana: The open and composable observability platform

    Faster answers, predictable costs, and no lock-in built by the team helping to make observability accessible to anyone.

    Grafana is the open source analytics & monitoring solution for every database.
    Learn More
  • 5
    EJBCA, JEE PKI Certificate Authority
    EJBCA is an enterprise class PKI Certificate Authority built on JEE technology. It is a robust, high performance, platform independent, flexible, and component based CA to be used standalone or integrated in other JEE applications.
    Leader badge
    Downloads: 197 This Week
    Last Update:
    See Project
  • 6
    OpenPAM
    OpenPAM is an open source PAM library that focuses on simplicity, correctness, and portability.
    Leader badge
    Downloads: 438 This Week
    Last Update:
    See Project
  • 7
    Fail2Ban

    Fail2Ban

    Daemon to ban hosts that cause multiple authentication errors

    Fail2ban scans log files (e.g. /var/log/apache/error_log) and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time, although any arbitrary other action (e.g. sending an email) could also be configured. Out of the box Fail2Ban comes with filters for various services (apache, courier, ssh, etc). Fail2Ban is able to reduce the rate of incorrect authentications attempts however it cannot eliminate the risk that weak authentication presents. Configure services to use only two factor or public/private authentication mechanisms if you really want to protect services.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 8
    truffleHog

    truffleHog

    Searches through git repositories for high entropy strings and secrets

    truffleHog searches through git repositories for high entropy strings and secrets, digging deep into commit history. TruffleHog runs behind the scenes to scan your environment for secrets like private keys and credentials, so you can protect your data before a breach occurs. Secrets can be found anywhere, so TruffleHog scans more than just code repositories, including SaaS and internally hosted software. With support for custom integrations and new integrations added all the time, you can secure your secrets across your entire environment. TruffleHog is developed by a team entirely comprised of career security experts. Security is our passion and primary concern, and all features are developed with best practices in mind. TruffleHog enables you to track and manage secrets within our intuitive management interface, including links to exactly where secrets have been found. TruffleHog runs quietly in the background, continuously scanning your environment for secrets.
    Downloads: 10 This Week
    Last Update:
    See Project
  • 9
    Keycloak

    Keycloak

    Identity and access management for modern applications and services

    Add authentication to applications and secure services with minimum fuss. No need to deal with storing users or authenticating users. It's all available out of the box. You'll even get advanced features such as User Federation, Identity Brokering and Social Login. Keycloak is an open source Identity and Access Management solution aimed at modern applications and services. It makes it easy to secure applications and services with little to no code. Users authenticate with Keycloak rather than individual applications. This means that your applications don't have to deal with login forms, authenticating users, and storing users. Once logged-in to Keycloak, users don't have to login again to access a different application. This also applied to logout. Keycloak provides single-sign out, which means users only have to logout once to be logged-out of all applications that use Keycloak.
    Downloads: 8 This Week
    Last Update:
    See Project
  • Smart Business Texting that Generates Pipeline Icon
    Smart Business Texting that Generates Pipeline

    Create and convert pipeline at scale through industry leading SMS campaigns, automation, and conversation management.

    TextUs is the leading text messaging service provider for businesses that want to engage in real-time conversations with customers, leads, employees and candidates. Text messaging is one of the most engaging ways to communicate with customers, candidates, employees and leads. 1:1, two-way messaging encourages response and engagement. Text messages help teams get 10x the response rate over phone and email. Business text messaging has become a more viable form of communication than traditional mediums. The TextUs user experience is intentionally designed to resemble the familiar SMS inbox, allowing users to easily manage contacts, conversations, and campaigns. Work right from your desktop with the TextUs web app or use the Chrome extension alongside your ATS or CRM. Leverage the mobile app for on-the-go sending and responding.
    Learn More
  • 10
    Better Auth

    Better Auth

    The most comprehensive authentication library for TypeScript

    Better Auth is framework-agnostic authentication (and authorization) library for TypeScript. It provides a comprehensive set of features out of the box and includes a plugin ecosystem that simplifies adding advanced functionalities with minimal code in a short amount of time. Whether you need 2FA, multi-tenant support, or other complex features. It lets you focus on building your actual application instead of reinventing the wheel.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 11
    andOTP

    andOTP

    Open source two-factor authentication for Android

    Open source two-factor authentication for Android. It implements Time-based One-time Passwords (TOTP) and HMAC-Based One-Time Passwords (HOTP). Simply scan the QR code and login with the generated 6-digit code. This project started out as a fork of the great OTP Authenticator app written by Bruno Bierbaumer, which has sadly been inactive since 2015. By now almost every aspect of the app has been changed/re-written so the fork status of the Github repository got detached upon user request. But all credit for the original version and for starting this project still goes to Bruno.
    Downloads: 7 This Week
    Last Update:
    See Project
  • 12
    PAM module which permits authentication for arbitrary services via ssh-agent. Written with sudo in mind, but like any auth PAM module, can be used for for many purposes.
    Leader badge
    Downloads: 93 This Week
    Last Update:
    See Project
  • 13
    Integrated Windows Authentication (Single Sign-On) in Java.
    Leader badge
    Downloads: 29 This Week
    Last Update:
    See Project
  • 14
    ORY Oathkeeper

    ORY Oathkeeper

    A cloud native Identity & Access Proxy / API (IAP)

    ORY Oathkeeper is an Identity & Access Proxy (IAP) and Access Control Decision API that authorizes HTTP requests based on sets of Access Rules. The BeyondCorp Model is designed by Google and secures applications in Zero-Trust networks. An Identity & Access Proxy is typically deployed in front of (think API Gateway) web-facing applications and is capable of authenticating and optionally authorizing access requests. The Access Control Decision API can be deployed alongside an existing API Gateway or reverse proxy. Ory offers a support plan for Ory Network Hybrid, including Ory on private cloud deployments. If you have a self-hosted solution and would like help, consider a support plan! The team at Ory has years of experience in cloud computing. Ory's offering is the only official program for qualified support from the maintainers.
    Downloads: 6 This Week
    Last Update:
    See Project
  • 15
    Zentyal, Linux Small Business Server

    Zentyal, Linux Small Business Server

    Zentyal is a Linux Small Business Server

    Zentyal Server is an easy to use and affordable Linux server, specially designed to meet the needs of small and medium businesses Thanks to Zentyal's Samba integration, Zentyal provides native compatibility with Microsoft Active Directory, allowing you to join Microsoft clients to a domain and manage them easily. Zentyal Server incorporates all the network services required in a small and medium business environment: * Directory & Domain Server with native compatibility with Microsoft Active Directory * Mail Server with ActiveSync and webmail * Gateway with firewall and proxy * Infrastructure Server with DNS/DHCP server, Certification Authority and Virtual Private Networks For more information and download, please access the project's home page.
    Downloads: 27 This Week
    Last Update:
    See Project
  • 16
    nuBuilder Forte

    nuBuilder Forte

    nuBuilder Forte is a cloud database builder.

    nuBuilder Forte is the 4th version of nuBuilder. A open-source browser-based tool created for developing web-based database applications. nuBuilder uses either MySQL or MariaDB databases and gives its users the ability to do database operations like... • Search, Create, Insert, Read, Update, Delete ✪ With low-code tools that create ... - Forms with the Form Builder - Fast Reports - Database queries with the SQL Builder - Customised date and number formats with the Format Builder - Calculated fields with the Formula Builder - Email Templates - Move and resize objects. - Further customisation that can be done with JavaScript and PHP. ✪ nuBuilder stores all forms, reports, company data and PHP/JavaScript code in MySQL. You can backup your entire application within a single database file. ✪ Easy installation: - Download and unzip the nuBuilder files - Upload to your webserver - Create a database (e.g. nubuilder4) and optionally a user - Make a copy of
    Downloads: 24 This Week
    Last Update:
    See Project
  • 17
    Ockam

    Ockam

    Orchestrate end-to-end encryption, mutual authentication

    Ockam is a suite of open source tools, programming libraries, and managed cloud services to orchestrate end-to-end encryption, mutual authentication, key management, credential management, and authorization policy enforcement – at massive scale. Modern applications are distributed and have an unwieldy number of interconnections that must trustfully exchange data. To build trust for data-in-motion, applications need end-to-end guarantees of data authenticity, integrity, and confidentiality. To be private and secure by-design, applications must have granular control over every trust and access decision. Ockam allows you to add these controls and guarantees to any application. We are passionate about making powerful cryptographic and messaging protocols simple and safe to use for millions of builders. Create a mutually authenticated and end-to-end encrypted secure channel between two Ockam nodes.
    Downloads: 5 This Week
    Last Update:
    See Project
  • 18
    Sentry

    Sentry

    Cross-platform application monitoring and error tracking software

    Sentry is a cross-platform, self-hosted error monitoring solution that helps software teams discover, monitor and fix errors in real-time. The most users and logs will have to provide are the clues, and Sentry provides the answers. Sentry offers enhanced application performance monitoring through information-laden stack traces. It lets you build better software faster and more efficiently by showing you all issues in one place and providing the trail of events that lead to errors. It also provides real-time monitoring and data visualization through dashboards. Sentry’s server is in Python, but its API enables for sending events from any language, in any application. More than fifty-thousand companies already ship better software faster thanks to Sentry; let yours be one of them!
    Downloads: 5 This Week
    Last Update:
    See Project
  • 19
    LDAP Explorer is a multi platform, graphical LDAP tool that enables you to browse, modify and manage LDAP servers.
    Downloads: 53 This Week
    Last Update:
    See Project
  • 20
    CID

    CID

    Insert and manage Linux computers in AD

    CID (Closed In Directory) is a set of bash scripts for inserting and managing Linux computers in Active Directory domains. Modifications made to the system allow Linux to behave like a Windows computer within AD.
    Downloads: 18 This Week
    Last Update:
    See Project
  • 21
    IdentityServer4

    IdentityServer4

    OpenID Connect and OAuth 2.0 Framework for ASP.NET Core

    IdentityServer is a free, open-source OpenID Connect and OAuth 2.0 framework for ASP.NET Core. Founded and maintained by Dominick Baier and Brock Allen, IdentityServer4 incorporates all the protocol implementations and extensibility points needed to integrate token-based authentication, single-sign-on and API access control in your applications. IdentityServer4 is officially certified by the OpenID Foundation and thus spec-compliant and interoperable. It is part of the .NET Foundation and operates under their code of conduct. It is licensed under Apache 2 (an OSI-approved license). Active development happens on the main branch. This always contains the latest version. Each (pre-) release is tagged with the corresponding version. The aspnetcore1 and aspnetcore2 branches contain the latest versions of the older ASP.NET Core based versions.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 22
    appwrite

    appwrite

    Secure Backend Server for Web, Mobile & Flutter Developers

    Appwrite is a self-hosted and cloud backend-as-a-service platform that provides developers with all the core APIs required to build any application. Build your entire backend within minutes and scale effortlessly using Appwrite's open-source platform. Add Authentication, Databases, Functions, Storage, and Messaging to your projects using the frameworks and languages of your choice.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 23
    LDAP Account Manager
    LDAP Account Manager (LAM) is a webfrontend for managing accounts stored in an LDAP directory. You can use templates for account creation and use multiple configuration profiles. Account information can be exported as PDF file.
    Downloads: 78 This Week
    Last Update:
    See Project
  • 24

    libpam-pgsql

    Project moved to github: https://github.com/pam-pgsql/pam-pgsql

    Project has been moved to github: https://github.com/pam-pgsql/pam-pgsql
    Leader badge
    Downloads: 42 This Week
    Last Update:
    See Project
  • 25
    Authelia

    Authelia

    The Single Sign-On Multi-Factor portal for web apps

    Authelia is an open-source authentication and authorization server and portal fulfilling the identity and access management (IAM) role of information security in providing multi-factor authentication and single sign-on (SSO) for your applications via a web portal. It acts as a companion for common reverse proxies. With a compressed container size smaller than 20 megabytes and observed memory usage normally under 30 megabytes, it's one of the most lightweight solutions available. Written in Go and React, authorization policies and many other backend tasks are completed in mere milliseconds and login portal loading times of 100 milliseconds makes it one of the fastest solutions available. Processors can use a lot of electricity, but when idle usage is basically so low that you can't measure it, and active usage in a small business environment being under 1% you can rest easy (with the exclusion of password hashing).
    Downloads: 2 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • 2
  • 3
  • 4
  • 5
  • Next