The best way to start a full-stack, typesafe Next.js app
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Modern React starter kit with Bun, TypeScript, Tailwind CSS, tRPC, Stripe, and Cloudflare Workers. Production-ready monorepo for building fast web apps.
A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.
- full-stack
- open-source
- saas
- nodejs
Free implementation of Play Services
- java
- android
- microg
- google-cloud-messaging
Gel supercharges Postgres with a modern data model, graph queries, Auth & AI solutions, and much more.
- database
- edgedb
- high-performance
- edgeql
Instant is the best backend for AI-coded apps. You get auth, permissions, storage, presence, and streams — everything you need to ship apps your users will love.
Open Source, Google Zanzibar-inspired database for scalably storing and querying fine-grained authorization data
- zanzibar
- permissions
- database
- distributed-systems
An open, sub-millisecond, single-executable Firebase alternative with type-safe APIs, built-in WebAssembly runtime, realtime subscriptions, auth, MCP and admin UI built on Rust, SQLite (PG) & Wasmtime.
Rallly is an open-source scheduling and collaboration tool designed to make organizing events and meetings easier.
- i18next
- next-auth
- nextjs
- postgresql
Instant REST and MCP APIs for PostgreSQL and MySQL, on existing or new databases. CRUD, custom SQL routes, auth and ACL without writing a backend. Low-code, ⚡ realtime, high-performance. Native MySQL support since v2.5
Fully functional Twitter clone built in flutter framework using Firebase realtime database and storage
- twitter-clone
- flutter-apps
- social
React Hooks for Firebase.
A modern SaaS template/boilerplate built with SvelteKit, Tailwind, and Supabase. Includes marketing page, blog, subscriptions, auth, user dashboard, user settings, pricing page, and more.
- cloudflare
- saas
- saas-boilerplate
- saas-tools
Awesome Django authorization, without the database
- python
- django
- permissions
- rules
Self-hosted collaborative password manager for teams: folder-level access control, AES-256-GCM encryption, LDAP/AD, OAuth2 SSO, audit trail, REST API, browser extension. PHP/MySQL, Docker.
- php
- access-control
- audit
- browser-extension
Open source, self-hostable watched list for all your content (movies, tv series, anime, games) with user authentication, modern and clean UI and a very simple setup.
Fullstack SaaS Boilerplate built with tRPC, Fastify and React
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
- soap
- assertions
- java
- api
Messenger Clone - Real-time iOS Chat with Firebase Firestore written in Swift
- swift
- firebase-firestore
- messenger
- xcode
Free, open-source AWS emulator. LocalStack alternative: 107 services, 7,657 operations, true 100% Smithy conformance (258,545/258,545 variants pass). No account, no auth token, no paid tier.
🔐 Tutorial of setting up Security for your API with one way authentication with TLS/SSL and mutual authentication for a java based web server and a client with both Spring Boot. Different clients are provided such as Apache HttpClient, OkHttp, Spring RestTemplate, Spring WebFlux WebClient Jetty and Netty, the old and the new JDK HttpClient, the old and the new Jersey Client, Google HttpClient, Unirest, Retrofit, Feign, Methanol, vertx, Scala client Finagle, Featherbed, Dispatch Reboot, AsyncHttpClient, Sttp, Akka, Requests Scala, Http4s Blaze, Kotlin client Fuel, http4k, Kohttp and ktor. Also other server examples are available such as jersey with grizzly. Also gRPC, WebSocket and ElasticSearch examples are included
- tls
- truststore
- certificate
- keystore
An opinionated production-ready SQL-/Swagger-first RESTful JSON API written in Go, highly integrated with VSCode DevContainers by allaboutapps.
- golang-development
- vscode-devcontainers
- golang
- go
News App created in Flutter using News API for fetching realtime data and Firebase as the backend and authenticator.
Starter app for Flutter that includes many different production app features; some not typically included in demo apps.
- flutter
- flutter-examples
- auth0
- internationalization