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Appwrite vs Supabase vs PocketBase — Open-Source Backend Comparison

Open-source backend platforms have matured into genuine Firebase alternatives in 2026, each offering a different philosophy of data ownership, developer experience, and scalability. Supabase builds on PostgreSQL with a relational-first approach, Appwrite provides a comprehensive all-in-one platform via Docker microservices, and PocketBase delivers a single-binary backend requiring zero external dependencies. This comparison evaluates their architectures, feature sets, pricing, and ideal use cases.

analyzed by Raşit Akyol March 30, 2026

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AppwriteSupabasewinnerPocketBase

Appwrite reviewSupabase review

Verdict

Supabase wins as the most comprehensive open-source Backend-as-a-Service, offering standard PostgreSQL without proprietary lock-in, Row Level Security, pgvector AI search, real-time channels, and edge functions. While PocketBase delivers an unbeatable lightweight single-binary SQLite backend for MVPs and Appwrite provides a well-organized microservices architecture, Supabase offers enterprise scalability, rich SQL tooling, and an unmatched developer ecosystem. Our pick: Supabase.

Quick Comparison

Appwrite

Pricing
Open-source Backend-as-a-Service (BaaS) platform under BSD-3-Clause license with 45k+ GitHub stars and $0 software licensing for self-hosted Docker environments. Appwrite Cloud offers a Free tier ($0/mo with 75K monthly requests, 2GB storage, and 1 database), Pro tier ($15/member/mo or $25/mo base with 5M requests, 150GB storage, 3.5M function executions, 200K MAU, and granular overages), Scale tier ($599/mo with 50M requests, 1TB storage, priority support), and custom Enterprise plans with dedicated infrastructure, custom SLAs, SOC 2/HIPAA compliance, and 24/7 support.
Pricing Model
Freemium
Platforms
Self-hosted, Docker, Cloud, 15+ SDKs
Open Source
Yes
Telemetry
Clean
Status
Active
Editorial Pick
—
Last Verified
Sep 6, 2026
Description
Appwrite is an open-source BaaS platform with 56K+ GitHub stars providing authentication, databases, storage, functions, messaging, and real-time APIs out of the box. Self-hostable alternative to Firebase with 15+ client and server SDKs. Features OAuth login with 30+ providers, document-based database with queries, file storage with image transforms, serverless functions, and push notifications. Docker-based deployment with a web console for management.

Supabasewinner

Pricing
Supabase offers a perpetual Free tier for hobbyists and experimentation (50k MAUs, 500MB DB). The Pro tier starts at $25/month including $10 compute credits, 8GB database storage, and 250GB egress. The Team tier costs $599/month for SOC2/HIPAA compliance and priority support, alongside custom Enterprise packages.
Pricing Model
Freemium
Platforms
Web, CLI, Self-hosted
Open Source
Yes
Telemetry
Clean
Status
Active
Editorial Pick
—
Last Verified
Aug 26, 2026
Description
Open-source Firebase alternative providing a full backend-as-a-service on PostgreSQL. Auto-generated REST and GraphQL APIs from your schema, real-time subscriptions, built-in auth with 20+ social providers and Row Level Security, S3-compatible file storage with CDN, and Deno-powered Edge Functions. Visual dashboard with SQL editor and table editor. Supports pgvector for AI apps. Self-hostable or managed with a generous free tier. 75K+ GitHub stars.

PocketBase

Pricing
100% free and open source under the MIT License ($0 software cost). PocketBase is a self-contained single-file Go/SQLite backend with zero licensing fees and minimal self-hosting infrastructure costs (~$3-$5/mo VPS).
Pricing Model
Open Source
Platforms
Single binary, any OS, SQLite
Open Source
Yes
Telemetry
Clean
Status
Active
Editorial Pick
—
Last Verified
Sep 6, 2026
Description
PocketBase is an open-source backend in a single Go binary with 44K+ GitHub stars providing a real-time database, authentication, file storage, and admin dashboard. No dependencies, no Docker required — just download and run. Features collection-based data modeling, REST API, real-time subscriptions, OAuth2 authentication, file uploads with thumbnails, and a built-in admin UI. Extends with custom Go code or JavaScript hooks. Ideal for prototyping, MVPs, and small-to-medium applications.

What Sets Them Apart

Appwrite, Supabase, and PocketBase represent three leading open-source Backend-as-a-Service (BaaS) architectures built on fundamentally different database engines. Supabase is built natively on PostgreSQL, offering direct SQL access, Row Level Security (RLS), and AI vector embeddings via pgvector. Appwrite is a Docker-first microservices BaaS on MariaDB/MySQL providing polished cross-platform SDKs and document-based data management. PocketBase is an ultra-lightweight single-binary BaaS written in Go and backed by embedded SQLite in WAL mode.

Supabase exposes full relational SQL and database-level security; Appwrite abstracts data behind unified REST/GraphQL document APIs; PocketBase packages database, auth, and admin UI into a 15MB binary for zero-maintenance hosting.

Appwrite, Supabase, and PocketBase at a Glance

Supabase powers production applications with PostgreSQL, PostgREST auto-generated APIs, real-time WebSocket subscriptions, GoTrue auth, and pgvector AI search.

Appwrite provides multi-platform SDKs (Flutter, React Native, Web, Swift, Kotlin), file storage with antivirus scanning, and serverless Cloud Functions across multiple runtimes.

PocketBase boots instantly on a $5/month VPS, embedding SQLite with Server-Sent Events (SSE) and JavaScript hooks (pb_hooks) for lightweight backend logic.

Database Engine and Architecture: Postgres vs Microservices vs Single Binary

Supabase enforces security at the PostgreSQL database engine layer via RLS policies, scaling horizontally in the cloud or via Docker Compose.

Appwrite orchestrates 15–20 Docker containers (Traefik, Redis, MariaDB), enforcing role- and team-based permissions at the API gateway layer.

PocketBase compiles database and server into a single Go executable, achieving high read throughput via SQLite WAL mode with 15MB RAM footprint.

Developer Experience and AI Readiness

Supabase is the undisputed leader for AI-native applications, storing vector embeddings alongside relational data for seamless RAG pipelines with automated TypeScript types.

Appwrite delivers an exceptional multi-platform developer experience with identical SDK design across mobile and web platforms.

PocketBase offers the fastest path to a working backend for indie hackers, MVPs, and mobile app prototypes.

The Bottom Line

Supabase is the definitive winner for open-source BaaS, combining PostgreSQL power, Row Level Security, native pgvector AI search, and seamless scalability.

FAQ

How do Supabase, Appwrite, and PocketBase compare in write concurrency and database scaling under load?

Supabase runs on PostgreSQL utilizing MVCC and connection pooling (Supavisor) scaling horizontally for reads and vertically for writes. PocketBase embeds SQLite using WAL mode, capping write throughput to several hundred writes/sec on a single VPS due to database-level single-writer locks. Appwrite utilizes MariaDB/Postgres with Redis queue workers decoupling ingest from persistence.

What are the architectural differences in real-time streaming between the three backends?

Supabase Realtime uses Elixir/Phoenix inspecting PostgreSQL's WAL stream to broadcast change events over WebSockets. PocketBase implements lightweight Server-Sent Events (SSE) directly in Go over in-memory channels. Appwrite routes events through internal Redis Pub/Sub connected to distributed WebSocket workers.

What are the deployment footprint and infrastructure trade-offs for self-hosting?

PocketBase compiles into a single Go binary (~15–30 MB) with zero runtime dependencies and embedded Admin UI running on a $4/mo VPS. Supabase requires a distributed topology of 6+ containers (Postgres, PostgREST, GoTrue, Kong, Realtime) needing 2–4 GB RAM. Appwrite operates as a Docker grid of 15+ containers requiring 2+ GB RAM.

How does authorization differ between PostgreSQL RLS, Appwrite permissions, and PocketBase rules?

Supabase delegates authorization to PostgreSQL Row Level Security (RLS) executing SQL predicates directly in the database engine. PocketBase evaluates filter rule expressions against SQLite rows inside Go query compilation. Appwrite implements role- and user-based permissions in its API gateway layer validating in memory.

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