# 14 Best Open Source Alternatives for Firebase Canonical: https://caniforkit.com/firebase Last updated: 2026-11-07 Looking for the best open source alternative for Firebase? Compare 14 verified free and open source alternatives to Firebase (Supabase, Appwrite, PocketBase) with license details, self-hosting requirements, and practical trade-offs. ## Firebase Overview & Subscription Cost - **Product**: Firebase - **Category**: [dev tools](https://caniforkit.com/category/dev-tools) - **Paid Subscription Price**: $25/month per seat - **1-Seat Annualized Cost**: $300/year - **5-Person Team Annualized Cost**: $1,500/year - **10-Person Team Annualized Cost**: $3,000/year - **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens) - **Rebuild Verdict**: Instead of paying recurring SaaS fees for Firebase or rebuilding it from scratch, deploy one of the 14 battle-tested open-source alternatives like Supabase. ## Verified Free & Open Source Alternatives | Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head | | --- | --- | --- | --- | --- | --- | | [Supabase](https://caniforkit.com/fork/supabase) | Open Source | Apache-2.0 | Self-host | ★ 114.6k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-supabase) | | [Appwrite](https://caniforkit.com/fork/appwrite) | Open Source | BSD-3-Clause | Self-host | ★ 57.9k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-appwrite) | | [PocketBase](https://caniforkit.com/fork/pocketbase) | Open Source | MIT | Self-host | ★ 61.6k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-pocketbase) | | [Turso](https://caniforkit.com/fork/turso) | Open Source | Open Source | Local | ★ 17.3k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-turso) | | [Zitadel](https://caniforkit.com/fork/zitadel) | Open Source | AGPL-3.0 | Self-host | ★ 15.5k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-zitadel) | | [Convex](https://caniforkit.com/fork/convex) | Open Source | Open Source | Self-host | ★ 12.8k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-convex) | | [Encore](https://caniforkit.com/fork/encore) | Open Source | Open Source | Local | ★ 12.7k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-encore) | | [Ory](https://caniforkit.com/fork/ory) | Open Source | Apache-2.0 | Self-host | ★ 13.9k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-ory) | | [Instant](https://caniforkit.com/fork/instant) | Open Source | Open Source | Local | ★ 10.6k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-instant) | | [NHost](https://caniforkit.com/fork/nhost) | Open Source | MIT | Self-host | ★ 9.4k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-nhost) | | [Bknd](https://caniforkit.com/fork/bknd) | Open Source | Open Source | Self-host | ★ 3.8k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-bknd) | | [Soketi](https://caniforkit.com/fork/soketi) | Open Source | Open Source | Self-host | ★ 5.6k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-soketi) | | [Nitric](https://caniforkit.com/fork/nitric) | Open Source | Open Source | Local | ★ 2k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-nitric) | | [undb](https://caniforkit.com/fork/undb) | Open Source | Open Source | Self-host | ★ 3k | [Compare vs Firebase](https://caniforkit.com/vs/firebase-vs-undb) | ## In-Depth Alternative Profiles ### Supabase - **Fork Page**: [Supabase Profile](https://caniforkit.com/fork/supabase) - **Head-to-Head Comparison**: [Firebase vs Supabase](https://caniforkit.com/vs/firebase-vs-supabase) - **Official Website**: https://supabase.com/ - **Source Code Repository**: https://github.com/supabase/supabase - **License**: Apache-2.0 - **Runs On**: Self-host - **GitHub Stars**: 114.6k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, cli, self-host, real ops - **Summary**: Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search. - **The Catch vs Firebase**: Supabase replaces Convex's document/function runtime with PostgreSQL, SQL migrations, row-level security, and separate services, so the application architecture must be rewritten rather than simply moved. - **Installation**: Hosted Supabase project, or the official Docker Compose stack; `supabase start` runs the local stack - **Setup**: Self-hosting is not 'just Postgres': the Compose stack needs many secrets and services, plus SMTP, object storage, TLS, backups, observability, and coordinated upgrades. - **Data Storage**: Relational data, auth records, and platform metadata live in PostgreSQL; Realtime consumes the Postgres replication stream; object data lives in the configured storage backend with metadata in Postgres; edge-function and migration source stays in project files. Supabase Cloud stores and operates the managed copy. ### Appwrite - **Fork Page**: [Appwrite Profile](https://caniforkit.com/fork/appwrite) - **Head-to-Head Comparison**: [Firebase vs Appwrite](https://caniforkit.com/vs/firebase-vs-appwrite) - **Official Website**: https://appwrite.io - **Source Code Repository**: https://github.com/appwrite/appwrite - **License**: BSD-3-Clause - **Runs On**: Self-host - **GitHub Stars**: 57.9k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: Open-source development platform with built-in backend infrastructure, web hosting, and security features. Scale applications using your preferred programming languages. - **The Catch vs Firebase**: Appwrite supplies the backend pieces but not Convex's end-to-end reactive TypeScript query model, automatic dependency tracking, transactional functions, or client cache semantics. - **Installation**: Hosted Appwrite Cloud signup, or the official Docker installer/Compose stack - **Setup**: The installer is one command, but it expands into a large multi-container platform; production use still needs a domain, TLS, SMTP, storage, backups, and careful version upgrades. - **Data Storage**: Self-hosted Appwrite stores application records in MariaDB, queues and cache in Redis, and uploaded files in Docker volumes or a configured object-storage adapter; functions and build artifacts are managed by the Appwrite worker/executor services. Appwrite Cloud stores the equivalent data in Appwrite's infrastructure. ### PocketBase - **Fork Page**: [PocketBase Profile](https://caniforkit.com/fork/pocketbase) - **Head-to-Head Comparison**: [Firebase vs PocketBase](https://caniforkit.com/vs/firebase-vs-pocketbase) - **Official Website**: https://pocketbase.io - **Source Code Repository**: https://github.com/pocketbase/pocketbase - **License**: MIT - **Runs On**: Self-host - **GitHub Stars**: 61.6k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: desktop, self-hosted, one-click install - **Summary**: A lightweight, self-hosted backend solution with real-time database, authentication, and file storage capabilities. - **The Catch vs Firebase**: PocketBase is excellent for one modest app, but a single SQLite server with no built-in functions runtime cannot match Firebase's offline SDKs, global scaling, messaging, analytics, or managed operations. - **Installation**: Download one platform binary and run `pocketbase serve`; build from Go source only for custom extensions - **Setup**: It installs unusually cleanly, but a public deployment still needs process supervision, HTTPS/reverse proxying, backups of `pb_data`, and a deliberate upgrade routine. - **Data Storage**: Collections, auth records, settings, and application data live in SQLite files under `pb_data`; uploaded files live under `pb_data/storage` by default or in configured S3-compatible storage, and schema migrations can be kept as JavaScript files in `pb_migrations`. ### Turso - **Fork Page**: [Turso Profile](https://caniforkit.com/fork/turso) - **Head-to-Head Comparison**: [Firebase vs Turso](https://caniforkit.com/vs/firebase-vs-turso) - **Official Website**: https://turso.tech - **Source Code Repository**: https://github.com/tursodatabase/libsql - **License**: Open Source - **Runs On**: Local - **GitHub Stars**: 17.3k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: desktop, cross-platform, one-click install - **Summary**: Turso provides a simple developer experience with SQLite compatibility, allowing you to build and scale multi-tenant applications with unlimited databases. - **The Catch vs Firebase**: Community-driven open source project without dedicated enterprise SLAs. - **Installation**: Clone https://github.com/tursodatabase/libsql or deploy with Docker Compose - **Setup**: Download the native package or installer for your operating system. - **Data Storage**: All application data lives locally on your own machine. ### Zitadel - **Fork Page**: [Zitadel Profile](https://caniforkit.com/fork/zitadel) - **Head-to-Head Comparison**: [Firebase vs Zitadel](https://caniforkit.com/vs/firebase-vs-zitadel) - **Official Website**: https://zitadel.com - **Source Code Repository**: https://github.com/zitadel/zitadel - **License**: AGPL-3.0 - **Runs On**: Self-host - **GitHub Stars**: 15.5k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: ZITADEL provides a comprehensive identity management solution with easy APIs, customizable workflows, and serverless deployment options. - **The Catch vs Firebase**: Requires self-hosting setup, updates, and server maintenance compared to managed Auth0. - **Installation**: Clone https://github.com/zitadel/zitadel or deploy with Docker Compose - **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables. - **Data Storage**: All application data and configuration live on your own server or local database. ### Convex - **Fork Page**: [Convex Profile](https://caniforkit.com/fork/convex) - **Head-to-Head Comparison**: [Firebase vs Convex](https://caniforkit.com/vs/firebase-vs-convex) - **Official Website**: https://convex.dev - **Source Code Repository**: https://github.com/get-convex/convex-backend - **License**: Open Source - **Runs On**: Self-host - **GitHub Stars**: 12.8k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: Open-source reactive database that keeps your web and mobile apps in sync. Write everything in TypeScript with built-in auth, cron jobs, and AI integration. - **The Catch vs Firebase**: Requires self-hosting setup, updates, and server maintenance compared to managed Firebase. - **Installation**: Clone https://github.com/get-convex/convex-backend or deploy with Docker Compose - **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables. - **Data Storage**: All application data and configuration live on your own server or local database. ### Encore - **Fork Page**: [Encore Profile](https://caniforkit.com/fork/encore) - **Head-to-Head Comparison**: [Firebase vs Encore](https://caniforkit.com/vs/firebase-vs-encore) - **Official Website**: https://encore.dev - **Source Code Repository**: https://github.com/encoredev/encore - **License**: Open Source - **Runs On**: Local - **GitHub Stars**: 12.7k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: desktop, cross-platform, one-click install - **Summary**: A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding. - **The Catch vs Firebase**: Community-driven open source project without dedicated enterprise SLAs. - **Installation**: Clone https://github.com/encoredev/encore or deploy with Docker Compose - **Setup**: Download the native package or installer for your operating system. - **Data Storage**: All application data lives locally on your own machine. ### Ory - **Fork Page**: [Ory Profile](https://caniforkit.com/fork/ory) - **Head-to-Head Comparison**: [Firebase vs Ory](https://caniforkit.com/vs/firebase-vs-ory) - **Official Website**: https://ory.sh - **Source Code Repository**: https://github.com/ory/kratos - **License**: Apache-2.0 - **Runs On**: Self-host - **GitHub Stars**: 13.9k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: Ory is a certified and battle-tested identity solution backed by a large open source community and trusted by Fortune 500 companies. - **The Catch vs Firebase**: Requires self-hosting setup, updates, and server maintenance compared to managed Auth0. - **Installation**: Clone https://github.com/ory/hydra or deploy with Docker Compose - **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables. - **Data Storage**: All application data and configuration live on your own server or local database. ### Instant - **Fork Page**: [Instant Profile](https://caniforkit.com/fork/instant) - **Head-to-Head Comparison**: [Firebase vs Instant](https://caniforkit.com/vs/firebase-vs-instant) - **Official Website**: https://www.instantdb.com/ - **Source Code Repository**: https://github.com/instantdb/instant - **License**: Open Source - **Runs On**: Local - **GitHub Stars**: 10.6k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: desktop, cross-platform, one-click install - **Summary**: Instant is a database solution for building real-time and offline-enabled applications, simplifying the development of collaborative products. - **The Catch vs Firebase**: Community-driven open source project without dedicated enterprise SLAs. - **Installation**: Clone https://github.com/instantdb/instant or deploy with Docker Compose - **Setup**: Download the native package or installer for your operating system. - **Data Storage**: All application data lives locally on your own machine. ### NHost - **Fork Page**: [NHost Profile](https://caniforkit.com/fork/nhost) - **Head-to-Head Comparison**: [Firebase vs NHost](https://caniforkit.com/vs/firebase-vs-nhost) - **Official Website**: https://nhost.io - **Source Code Repository**: https://github.com/nhost/nhost - **License**: MIT - **Runs On**: Self-host - **GitHub Stars**: 9.4k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, cli, self-host, real ops - **Summary**: Fully managed backend infrastructure with built-in authentication, database, storage, and serverless functions for rapid application development. - **The Catch vs Firebase**: Nhost's PostgreSQL-and-GraphQL model is conventional and powerful, but it does not reproduce Convex's reactive functions, automatic cache invalidation, or unified TypeScript data model. - **Installation**: Hosted Nhost project, or Nhost CLI/Docker for local and self-hosted deployments - **Setup**: Self-hosting means operating PostgreSQL, Hasura, authentication, storage, functions, networking, secrets, email, and upgrades rather than one small binary. - **Data Storage**: Application and auth records live in PostgreSQL, GraphQL metadata and migrations can live beside the project in version-controlled files, uploaded objects use S3-compatible storage, and serverless-function source remains in the project directory. Nhost Cloud runs those services in Nhost's infrastructure. ### Bknd - **Fork Page**: [Bknd Profile](https://caniforkit.com/fork/bknd) - **Head-to-Head Comparison**: [Firebase vs Bknd](https://caniforkit.com/vs/firebase-vs-bknd) - **Official Website**: https://bknd.io - **Source Code Repository**: https://github.com/bknd-io/bknd - **License**: Open Source - **Runs On**: Self-host - **GitHub Stars**: 3.8k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: Lightweight Firebase alternative with database, auth, storage, and workflows. Framework-agnostic backend that integrates with NextJS, Remix, Hono and more. - **The Catch vs Firebase**: Requires self-hosting setup, updates, and server maintenance compared to managed Firebase. - **Installation**: Clone https://github.com/bknd-io/bknd or deploy with Docker Compose - **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables. - **Data Storage**: All application data and configuration live on your own server or local database. ### Soketi - **Fork Page**: [Soketi Profile](https://caniforkit.com/fork/soketi) - **Head-to-Head Comparison**: [Firebase vs Soketi](https://caniforkit.com/vs/firebase-vs-soketi) - **Official Website**: https://soketi.app - **Source Code Repository**: https://github.com/soketi/soketi - **License**: Open Source - **Runs On**: Self-host - **GitHub Stars**: 5.6k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: Open-source, Pusher-compatible WebSockets server that's simple, fast, and resilient for building real-time applications. - **The Catch vs Firebase**: Requires self-hosting setup, updates, and server maintenance compared to managed Firebase. - **Installation**: Clone https://github.com/soketi/soketi or deploy with Docker Compose - **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables. - **Data Storage**: All application data and configuration live on your own server or local database. ### Nitric - **Fork Page**: [Nitric Profile](https://caniforkit.com/fork/nitric) - **Head-to-Head Comparison**: [Firebase vs Nitric](https://caniforkit.com/vs/firebase-vs-nitric) - **Official Website**: https://nitric.io - **Source Code Repository**: https://github.com/nitrictech/nitric - **License**: Open Source - **Runs On**: Local - **GitHub Stars**: 2k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: desktop, cross-platform, one-click install - **Summary**: Nitric automates cloud infrastructure provisioning from your application code for AWS, GCP and Azure - **The Catch vs Firebase**: Community-driven open source project without dedicated enterprise SLAs. - **Installation**: Clone https://github.com/nitrictech/nitric or deploy with Docker Compose - **Setup**: Download the native package or installer for your operating system. - **Data Storage**: All application data lives locally on your own machine. ### undb - **Fork Page**: [undb Profile](https://caniforkit.com/fork/undb) - **Head-to-Head Comparison**: [Firebase vs undb](https://caniforkit.com/vs/firebase-vs-undb) - **Official Website**: https://undb.io - **Source Code Repository**: https://github.com/undb-io/undb - **License**: Open Source - **Runs On**: Self-host - **GitHub Stars**: 3k - **Maintenance Activity**: nov 2026 - **Supported Platforms**: web, self-hosted, docker to self-host - **Summary**: Build and manage custom databases with ease, create type-safe APIs, and develop applications quickly - **The Catch vs Firebase**: Requires self-hosting setup, updates, and server maintenance compared to managed Firebase. - **Installation**: Clone https://github.com/undb-io/undb or deploy with Docker Compose - **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables. - **Data Storage**: All application data and configuration live on your own server or local database. ## Frequently Asked Questions ### What is the best free alternative to Firebase? The top free alternative to Firebase is Supabase (open source, Apache-2.0). Provides a full backend stack built on Postgres: authentication, auto-generated APIs, edge functions, realtime subscriptions, file storage, and vector search. Other popular Firebase replacements include Appwrite, PocketBase, Turso. ### How much does switching from Firebase to a free alternative save? Firebase starts at $25/month per seat ($300/year). Switching a 5-person team to a free alternative like Supabase saves $1,500 per year in software subscription fees. ### What is the catch when switching away from Firebase? While Supabase replaces core Firebase features without subscription fees, the real-world trade-off is: Supabase replaces Convex's document/function runtime with PostgreSQL, SQL migrations, row-level security, and separate services, so the application architecture must be rewritten rather than simply moved. ## Related - [dev tools Software Category Hub](https://caniforkit.com/category/dev-tools) - [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives) - [Self-Hosted Software Directory](https://caniforkit.com/self-hosted) - [Homepage](https://caniforkit.com)