Free Backend as a Service
Backend as a Service platforms provide ready-made tools for the behind-the-scenes part of your app. They handle user accounts, secure login, databases to store information, file uploads, and automatic functions that run on the server. This allows developers and students to focus on creating the visible parts of their websites and mobile apps without worrying about complex server setup or maintenance. These services are perfect for building real applications quickly, testing ideas, and launching small projects at no cost. Whether you are learning app development or creating a personal project, these platforms give you powerful backend capabilities with generous free tiers that require little to no coding on the server side. Every service listed here offers a genuine free tier that persists beyond a short trial, so you can shortlist practical options before you commit to a vendor.
Category directory
Compare free backend as a service options
Review the services below, open the details sheet to inspect the free-tier limits, and then jump to the official site when you are ready to validate the latest plan terms.
Supabase
Supabase is an open-source platform that serves as a strong alternative to other backend services. It gives you a full PostgreSQL database, user authentication system, file storage, realtime updates, and serverless functions that run on the edge. The free tier includes enough resources for most personal projects, learning purposes, and small applications. Developers like it because it feels familiar to modern web standards and provides excellent documentation. You can build mobile apps, web dashboards, or collaborative tools with realtime features. The platform continues to grow while keeping the core free plan useful for long-term hobby and student projects without forcing you to upgrade early.
Free tier snapshot
500 MB database space, 5 GB monthly bandwidth, 1 GB file storage, 500 MB function compute, and generous limits on realtime connections and API requests
Firebase
Firebase is Google’s complete backend platform that helps developers quickly add essential features to their apps. It includes a flexible database, secure user authentication, fast hosting for websites, cloud functions, and realtime data synchronization. The free Spark plan offers very useful limits that support many personal projects, prototypes, and small production apps. Students and independent developers often start with Firebase because of its excellent integration with other Google tools and easy-to-use SDKs for web, Android, and iOS. It allows you to launch apps faster by handling scaling, security rules, and analytics behind the scenes while you focus on building great user experiences.
Free tier snapshot
1 GB Firestore storage, 10 GB hosting storage, 360 MB/day data transfer, 125K authentications, 10 GB/month Cloud Functions, and many other generous limits on the Spark free plan
Appwrite
Appwrite is a self-hosted open-source backend platform that brings together authentication, databases, file storage, cloud functions, and messaging in one easy package. You can run it on your own server or use their cloud service. The free tier lets you create unlimited projects with reasonable limits per project, making it ideal for developers who want full control and privacy. It works well for web, mobile, and desktop applications. Students and open-source enthusiasts particularly appreciate its clean APIs and the ability to run everything locally during development. The platform continues to add new features while staying true to its open-source roots and generous free usage model.
Free tier snapshot
Unlimited projects on self-hosted version, 1 database, 3 storage buckets, 5 functions per project, and generous resource limits on the free cloud tier
PocketBase
PocketBase is a lightweight open-source backend that comes as a single executable file, making it extremely easy to set up and use. It includes a SQLite database, user authentication, file storage, realtime subscriptions, and a built-in admin dashboard. Because it is completely free and self-hosted with no usage restrictions, it is perfect for personal projects, learning, and applications where you want full ownership of your data. Developers who prefer simplicity and speed often choose PocketBase for small to medium apps. You can run it on your laptop, a small server, or even deploy it to various hosting platforms. Its small size and rich features make it one of the easiest ways to add a complete backend to your project.
Free tier snapshot
Completely free and open-source with no limits when self-hosted. Single file deployment, unlimited storage and users depending on your server resources
Always verify free tier limits directly on the provider's website before using in production — free tiers can change over time.