Best open-source backend-as-a-service for self-hosting
3 models · updated 2026-07-18
The verdict
Supabase leads — All 3 models rank Supabase the top pick.
As of 2026-07-18, ChatGPT, Claude, Gemini collectively rank Supabase first for open-source backend-as-a-service for self-hosting on modelsagree.com.
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Combined ranking
- 1GPT #1Claude #1Gemini #1
Best overall balance: full PostgreSQL, SQL portability, row-level security, authentication, object storage, realtime, Edge Functions, REST/GraphQL APIs, and a strong local-development workflow. It suits teams willing to operate a multi-service Docker stack.
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GPT Best overall balance: full PostgreSQL, SQL portability, row-level security, authentication, object storage, realtime, Edge Functions, REST/GraphQL APIs, and a strong local-development workflow. It suits teams willing to operate a multi-service Docker stack.
Claude The most complete self-hostable BaaS — Postgres at the core with auth, row-level security, realtime, storage, edge functions, and vector search, all backed by the largest ecosystem, client-SDK coverage, and community of any option here; building on plain Postgres means your data model and skills transfer anywhere, and the escape hatch (it's just a database) is the best in the category. Assumption: the typical practitioner values Postgres-native SQL over a proprietary data layer.
Gemini Offers the most complete, PostgreSQL-centric ecosystem with real-time sync, auto-generated REST/GraphQL APIs, Auth, and Storage, making it the premier choice for relational data needs.
Where it falls shortper GPT Self-hosting lacks managed-cloud features such as automated backups/PITR, branching, advanced metrics, and multi-project administration, leaving substantial database and infrastructure work to you.
per Claude Self-hosting is genuinely harder than the marketing implies — a dozen-plus containerized services (GoTrue, PostgREST, Realtime, Storage, Studio, Kong) with upgrade and config drift pain; the cloud product gets features and polish first, and the self-hosted dashboard/multi-project experience lags well behind.
per Gemini Its microservice-heavy architecture (Kong, GoTrue, PostgREST, etc.) makes self-hosting and configuration updates exceptionally complex compared to single-binary solutions.
- 2GPT #3Claude #2Gemini #2
A single Go binary with embedded SQLite delivering auth, realtime subscriptions, file storage, and an admin UI — the best operational simplicity per feature in the category; deploys on a $5 VPS in minutes, backs up as one file, and is extendable in Go or JavaScript hooks. Near-tie with Appwrite: PocketBase wins for solo devs and small apps on ops simplicity, Appwrite wins on breadth.
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Claude A single Go binary with embedded SQLite delivering auth, realtime subscriptions, file storage, and an admin UI — the best operational simplicity per feature in the category; deploys on a $5 VPS in minutes, backs up as one file, and is extendable in Go or JavaScript hooks. Near-tie with Appwrite: PocketBase wins for solo devs and small apps on ops simplicity, Appwrite wins on breadth.
Gemini Compiled as a single Go binary with embedded SQLite, it provides an ultra-lightweight, fast, and simple deployment experience that is perfect for resource-constrained environments.
GPT Exceptional value for solo developers and small applications: one compact executable provides SQLite persistence, authentication, file storage, realtime subscriptions, APIs, migrations, and an excellent admin UI with minimal operational burden.
Where it falls shortper GPT The project still discourages production-critical use, and its single-node SQLite architecture is unsuitable for high availability or write-heavy horizontal scaling.
per Claude SQLite and single-node design mean no built-in horizontal scaling or HA, and the author's deliberate pre-1.x-style API churn plus one-maintainer bus factor make it wrong for large teams or high-write-volume products.
per Gemini It is bound to SQLite and vertical scaling, lacking native support for multi-node horizontal clustering or distributed database backends.
- 3GPT #2Claude #3Gemini #3
Near-tie with Supabase for teams prioritizing an integrated Firebase-like experience; polished SDKs combine authentication, databases, storage, realtime, functions, messaging, and web hosting, with strong feature parity when self-hosted.
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GPT Near-tie with Supabase for teams prioritizing an integrated Firebase-like experience; polished SDKs combine authentication, databases, storage, realtime, functions, messaging, and web hosting, with strong feature parity when self-hosted.
Claude The most Firebase-like feature surface (auth with dozens of OAuth providers, databases, storage, functions in many runtimes, messaging, realtime) with first-class Docker Compose self-hosting that has been the primary deployment story since day one — self-hosting is not an afterthought as it is for Supabase; strong multi-platform SDKs including excellent Flutter/mobile support.
Gemini A highly developer-friendly, container-first BaaS offering a comprehensive suite of tools (Auth, Databases, Storage, Functions) with broad, mature SDK support across platforms.
Where it falls shortper GPT Its proprietary data abstraction is less flexible and portable than working directly with PostgreSQL and SQL.
per Claude Its document database abstraction sits on MariaDB rather than exposing a real queryable relational engine, so complex relational queries, joins, and direct SQL access are weak — teams with serious data-modeling needs outgrow it.
per Gemini Its extensive Docker container footprint requires significant system resource overhead, making it inefficient for hosting on low-cost, low-resource virtual private servers.
- 4GPT #4Claude #4Gemini —
A coherent PostgreSQL-and-GraphQL stack built around Hasura, with authentication, storage, realtime APIs, and serverless functions; especially strong when GraphQL is a firm requirement.
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GPT A coherent PostgreSQL-and-GraphQL stack built around Hasura, with authentication, storage, realtime APIs, and serverless functions; especially strong when GraphQL is a firm requirement.
Claude Best pick when GraphQL is the requirement — packages Hasura's mature GraphQL engine over Postgres with auth, storage, and serverless functions into a coherent self-hostable stack, giving instant permission-aware GraphQL APIs that would take weeks to assemble by hand.
Where it falls shortper GPT Official community self-hosting is presented as a reference implementation with community support, making production operations and upgrades less turnkey than its managed offering.
per Claude Self-hosting is clearly secondary to their cloud business — docs and tooling for production self-deployment are thin, and you inherit Hasura's complexity and its own licensing/version dynamics; smaller community than the top three.
- 5GPT #5Claude #5Gemini #5
Mature, battle-tested, genuinely portable infrastructure with broad mobile SDK coverage, authentication, Cloud Code, files, push integrations, LiveQuery, and MongoDB or PostgreSQL adapters.
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GPT Mature, battle-tested, genuinely portable infrastructure with broad mobile SDK coverage, authentication, Cloud Code, files, push integrations, LiveQuery, and MongoDB or PostgreSQL adapters.
Claude The elder statesman still earns a spot on maturity — a decade of production hardening on Node/MongoDB, a huge body of documentation and answered questions, stable APIs, LiveQuery realtime, and genuinely simple single-service self-hosting; for mobile-first CRUD apps it remains a low-risk, boring-in-a-good-way choice.
Gemini A highly mature, battle-tested platform supporting both MongoDB and PostgreSQL, featuring built-in push notifications, live queries, and a decade-long track record of running production apps at scale.
Where it falls shortper GPT Its architecture, dashboard, and developer workflow feel dated and require more assembly than newer integrated platforms.
per Claude Momentum and mindshare have drained away — MongoDB-centric design, dated dashboard, and slow feature evolution mean you're adopting a maintained legacy platform, not a growing one.
per Gemini It relies on a legacy architecture and JavaScript-based Cloud Code that feels outdated compared to modern type-safe, edge-ready serverless function environments.
- 6GPT —Claude —Gemini #4
A database-mirroring engine that installs on top of any existing SQL database to instantly generate REST/GraphQL APIs and a premium admin console without altering the database schema.
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Gemini A database-mirroring engine that installs on top of any existing SQL database to instantly generate REST/GraphQL APIs and a premium admin console without altering the database schema.
Where it falls shortper Gemini It focuses on data management and lacks built-in serverless edge functions, requiring external services or custom Node.js extensions for complex backend logic.
By use case
How this board's leaders rank when the same four models are asked a more specific question.
| Product | This board | Firebase alternative | startups |
|---|---|---|---|
| Supabase | #1 | #1 | #1 |
| PocketBase | #2 | #3 | #5 |
| Appwrite | #3 | #2 | #4 |
| Nhost | #4 | #4 | — |
| Parse Server | #5 | — | — |
Just missed the top 5
GPT Directus — excellent database API and admin studio, but oriented more toward data management and headless CMS workloads than a complete application BaaS · Convex — excellent reactive TypeScript development model, but self-hosting is newer, operationally less established, and uses a fair-source license rather than conventional open source
Claude Convex — excellent DX and its backend is open-source, but self-hosting is community-supported and second-class versus its cloud, and the proprietary-feeling function/database model locks you into its paradigm
Gemini Nhost — missed the top 5 due to its high self-hosting configuration complexity and a smaller community ecosystem compared to Supabase · Payload — missed due to its primary focus on headless CMS content management rather than serving as a general-purpose BaaS with features like out-of-the-box real-time subscriptions
By model
ChatGPT
- 1.Supabase
- 2.Appwrite
- 3.PocketBase
- 4.Nhost
- 5.Parse Server
Claude
- 1.Supabase
- 2.PocketBase
- 3.Appwrite
- 4.Nhost
- 5.Parse Server
Gemini
- 1.Supabase
- 2.PocketBase
- 3.Appwrite
- 4.Directus
- 5.Parse Server
Common questions
What is the best open-source backend-as-a-service for self-hosting according to AI models?
Supabase leads. All 3 models rank Supabase the top pick. The current top 3: Supabase, PocketBase, Appwrite. Ranked by asking ChatGPT, Claude, Gemini the same buying question and merging their top-5 picks, updated 2026-07-18. Source: modelsagree.com.
Which open-source backend-as-a-service for self-hosting did each AI model pick first?
ChatGPT: Supabase. Claude: Supabase. Gemini: Supabase.
How is this open-source backend-as-a-service for self-hosting ranking made?
ChatGPT, Claude, Gemini are each asked the same buying question in a fresh session with no system steering. Their top-5 answers are merged (rank 1 = 5 pts … rank 5 = 1 pt) into the consensus ranking, re-polled weekly and tracked over time.
More on how polling works: full methodology →
This ranking moves
We re-poll all four models weekly. Get one short email when a #1 flips.
Cite this ranking
ModelsAgree, “Best open-source backend-as-a-service for self-hosting” — merged ranking from ChatGPT, Claude, Gemini & Grok, polled 2026-07-18. https://modelsagree.com/best/best-open-source-backend-as-a-service-for-self-hosting (CC BY 4.0)
Tracked by ModelsAgree · rank 1 = 5 pts … rank 5 = 1 pt · re-polled weekly