Alternatives to Auth0

2 editor-selected alternatives · Auth0 overview →

source: tools.alternatives · stored order · active records only; review scores are annotations and never change membership or order

A directional evidence panel appears only when the substitute rationale, trade-offs, sources, and verification date have been recorded. Older selections without that panel remain visible but are unclassified under the new evidence contract.

Logto

open sourcefreemiumexplicit relation

Logto is an open-source authentication and authorization platform built on OIDC and OAuth 2.1, serving as an alternative to Auth0, Cognito, and Firebase Auth. It provides pre-built sign-in flows with customizable UI, social login, Google One Tap, MFA, enterprise SSO via SAML, and role-based access control. SDKs cover 30+ frameworks including React, Next.js, Vue, Flutter, Go, and Python, with multi-tenancy support for SaaS applications.

Logto is an open-source Auth0/Okta alternative under the MPL-2.0 license. Logto Cloud features a Free tier supporting up to 50,000 MAU, a Pro plan starting at $24/month with unlimited MAU, enterprise SAML SSO, and multi-tenant organization support, alongside custom Enterprise cloud plans and a free self-hosted edition.

Casdoor

open sourceexplicit relation

Casdoor is an open-source Identity and Access Management platform built by the Casbin community in Go and React. Supports OAuth 2.0, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, and MFA with a comprehensive web-based admin UI. Provides multi-tenant organization management, flexible RBAC and ABAC access control via Casbin models, and integrations with Google Workspace and Azure AD. Offers self-hosted deployment with optional managed cloud plans.

Casdoor is 100% free and open-source under the Apache-2.0 license for self-hosting. Casdoor Identity Cloud offers a free tier supporting up to 25,000 monthly active users, along with custom enterprise plans with SLA and dedicated support.

Open-source Auth0 alternatives

Logto, Casdoor — see all open-source developer tools.

Free Auth0 alternatives

Logto offer a free plan or free tier.

More Authentication & Identity tools

same category, not editor-selected alternatives — see how Auth0 compares →

CiliumCilium is a CNCF Graduated, Apache-2.0 project for Kubernetes networking, security, and observability using eBPF. It can replace kube-proxy, enforce identity-aware L3-L7 network policies, and add Hubble flow observability plus Tetragon runtime-security signals. Current source checks support GKE Dataplane V2 using Cilium/eBPF and Azure CNI Powered by Cilium for AKS.OrbStackOrbStack is a macOS application that replaces Docker Desktop with lightweight container and Linux VM management. Its docs emphasize fast starts, lower CPU and memory overhead, and native macOS integration with menu bar controls, file sharing, and network access to containers by name, with exact gains depending on workload. Supports Docker, Kubernetes, and full Linux VMs.RayRay is an open-source distributed computing framework built for scaling AI and Python applications from a laptop to thousands of GPUs. It provides libraries for distributed training, hyperparameter tuning, model serving, reinforcement learning, and data processing under a single unified API. Ray's public site highlights OpenAI and other enterprise users. Maintained by Anyscale with Apache-2.0 open-source licensing.ActAct is an open-source tool that runs GitHub Actions workflows locally using Docker containers that match GitHub's execution environment. It provides instant feedback on workflow changes without pushing to a repository, supports matrix builds, secret management, and artifact handling. Act can also replace Makefiles by using workflow files as task definitions, making it useful for both CI/CD development and local task automation across development teams.ClerkClerk is a complete authentication and user management platform for React, Next.js, and modern JavaScript frameworks. It provides pre-built UI for sign-in, sign-up, user profiles, organizations, MFA, passkeys, JWT sessions, webhooks, and billing. The Hobby plan supports up to 50,000 monthly retained users per app, with Pro, Business, and Enterprise tiers for growing teams.DockerIndustry-standard container platform for building, shipping, and running applications in isolated, reproducible environments. Package apps with all dependencies into portable containers using Dockerfiles and images. Docker Compose orchestrates multi-container applications. Docker Hub hosts millions of pre-built images. Docker Desktop provides GUI management on Mac/Windows. Essential for local development, CI/CD, and production deployments. The foundation of modern containerized infrastructure.ModalModal is a serverless compute platform that lets developers run AI workloads on GPUs with a Python-first SDK. Functions deploy with decorators, auto-scale from zero to thousands of containers, and bill per second. It supports LLM inference, fine-tuning, batch jobs, and sandboxes, with current GPU options including B200, H200, H100, A100, L40S, A10, L4, and T4. Modal’s 2026 Series C valued the company at $4.65B.PangolinIdentity-based remote access platform built on WireGuard that combines reverse proxy and VPN capabilities. Pangolin supports clientless browser access for web apps and client-based private-resource access across macOS, iOS, Windows, Linux, and Android, with zero-trust rules, peer-to-peer tunnels, automatic SSL, SSO/OIDC options, and cloud or self-hosted deployment.ArgoCDArgo CD is the most popular GitOps continuous delivery tool for Kubernetes. It continuously monitors Git repositories and automatically syncs application state to match the desired configuration. A CNCF graduated project used by thousands of organizations for deploying to Kubernetes clusters.

Auth0 head-to-head

FAQ

Which Auth0 alternative is listed first?

Logto is first in the editor-selected list of 2 Auth0 alternatives. The stored order is editorial; review scores do not determine membership or position.

Are there open-source Auth0 alternatives?

Yes — Logto, Casdoor are open source.

Are there free Auth0 alternatives?

Yes — Logto offer a free plan or free tier.