Free authentication tools or service for developers

A collection of free authentication app, tools or service for developers

Logo thumbnail for Web3Auth

Web3Auth

Web3Auth is a simple, non-custodial auth infrastructure that enables Web3 wallets and applications to provide seamless user logins to both mainstream and native Web3 users.

Tags: authentication, web3

Free Offer:

Unlimited project creation for plug and play products Full dashboard access Access to SSO, passwordless and biometric logins Connect to any supported blockchain Ulimited project creation for plug and play products Up to 1,000 MAU
Logo thumbnail for AccuWeather APIs

AccuWeather APIs

Accuweather API is a free service where you can get data about weather from any location and any timestamp

Tags: api, authentication, weather

Free Offer:

50 calls/day Limit 1 key/developer 24 Hours Historical Current Conditions
Logo thumbnail for Appwrite

Appwrite

Appwrite provides web and mobile developers with a set of easy-to-use and integrate REST APIs to manage their core backend needs.

Tags: API, database, storage, authentication, serverless

Free Offer:

Open Source
Logo thumbnail for Auth0

Auth0

Auth0 is an easy to implement, adaptable authentication and authorization platform.

Tags: user-management, authentication

Free Offer:

Up to 7,000 active users and unlimited logins
Logo thumbnail for Back4app™

Back4app™

Our simple, straightforward plans offer stability and predictability at the end of the month. No more surprise bills.

Tags: database, hosting, graphql, authentication, hosting-backend

Free Offer:

Ideal for developing, learning and prototyping. Explore our features and start building with free monthly capacity of 25k requests, 250MB data storage, 1GB transfer, 1GB file storage. Supported by community.
Logo thumbnail for Clerk

Clerk

The easiest way to add authentication and user management to your application. Purpose-built for React, Next.js, and the modern web.

Tags: authentication, user-management, components, nextjs, react

Free Offer:

No credit card required 10,000 monthly active users Pre-built components Custom Domain
Logo thumbnail for Descope

Descope

Add passwordless authentication, user management, and authorization to your app with a few lines of code. Choose from our drag-and-drop workflows, SDKs, or APIs.

Tags: authentication

Free Offer:

Up to 7500 MAUs (monthly active users) Up to 50 tenants (Up to 5 SAML tenants) Essential security and user protection No Custom Domain Community support 99% SLA No Descope watermark
Logo thumbnail for Firebase

Firebase

Firebase helps you build and run successful apps Backed by Google and loved by app development teams - from startups to global enterprises

Tags: database, hosting, hosting-dynamic, hosting-static, storage, authentication, real-time

Free Offer:

Authentication 10k/month Cloud Firestore (stored data: 1 GiB total) Realtime Database (stored data: 1 GB) Hosting storage 10 GB Cloud storage 5 GB
Logo thumbnail for Kinde

Kinde

Simple, powerful authentication you can integrate with your product in minutes.

Tags: authentication, user-management

Free Offer:

Up to 7,500 MAU per month SSO with unlimited social connections and MFA Basic role and permission management View and manage users Unlimited team members 2,000 machine to machine tokens
Logo thumbnail for LoginLlama

LoginLlama

Use LoginLlama to detect suspicious logins and protect your users from hackers.

Tags: security, authentication

Free Offer:

Free for 1,000 logins per month
Logo thumbnail for Magic

Magic

Fast, secure passwordless login for your app or website. One SDK for email magic links, social login, WebAuthn, and more. Free to get started, ready in minutes.

Tags: authentication, passwordless-authentication

Free Offer:

1,000 free monthly active users 100 free text messages per month Access to all login methods Access to all 20 blockchains Custom logo and theme Magic Login Form and User Settings
Logo thumbnail for MojoAuth

MojoAuth

Quickly integrate passwordless authentication for web and mobile applications to give users a smooth, secure login experience.

Tags: authentication, passwordless-authentication

Free Offer:

Unlimited Monthly Active Users Unlimited Total Users Unlimited Monthly Logins 2 RPS Authentication Request Email Support (Basic: 48 hours response time) Live Chat Support
Logo thumbnail for Nhost

Nhost

Nhost is an open source Firebase alternative with GraphQL, built with the following things in mind: Open Source, GraphQL, SQL, Great Developer Experience

Tags: hosting, storage, database, authentication, serverless-backend, graphql

Free Offer:

Postgres DB with 500 MB of storage GraphQL with Hasura Authentication upto 10,000 Storage up to 1GB Network Transfer upto 5GB ! Sleeps after 7 days of inactivity
Logo thumbnail for SinglebaseCloud

SinglebaseCloud

SinglebaseCloud is an AI-powered backend platform that provides a Vector DB, NoSQL DB, Authentication, Storage, Similarity Search, Images, Analytics via an easy and simple API, using GraphQL, SQL and REST.

Tags: database, backend, baas, vectordb, nosql, documentdb, authentication

Free Offer:

Unlimited Auth MAU Unlimited Collections 10 Million API Requests 5000 Records
Logo thumbnail for StaticBackend

StaticBackend

Free and open-source self-hosted backend API enabling web and mobile developers to use common building blocks for applications. Easy to deploy Firebase alternative includes authentication, database, storage, real-time database and WebSocket, server-side functions, task scheduler, sending emails, and more.

Tags: API, database, storage, authentication, real-tie, serverless

Free Offer:

Self-host a feature-rich backend API.
Logo thumbnail for Supabase

Supabase

The Open Source Firebase Alternative Create a backend in less than 2 minutes. Start your project with a Postgres Database, Authentication, instant APIs, realtime subscriptions and Storage.

Tags: database, storage, authentication, real-time, postgres-service

Free Offer:

Get free database, authentication and storage Unlimited API request Database space (Up to 500MB) Users 10.000 users Social Auth provider Storage Up to 1GB Transfer Limit Up to 2GB Team members: unlimited
Logo thumbnail for SuperTokens, Open Source Authentication

SuperTokens, Open Source Authentication

Add simple email and password sign up functionality to your site or app in 15 minutes

Tags: authentication

Free Offer:

Self hosted: Free forever, unlimited users SaaS (hosted by us): Free up to 5K monthly active users