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Databases · head to head

FaunaDB vs StackBlitz

FaunaDB logo

FaunaDB

Databases

Document-relational database whose hosted service closed in 2025 and whose core is now unmaintained Apache 2.0 code.

From
Free
Free plan
Yes
Visit FaunaDBFull review
StackBlitz logo

StackBlitz

Developer Tools

Browser-based IDE and AI app builder running full Node.js stacks via WebContainers

From
Free
Free plan
Yes
Visit StackBlitzFull review

The short version

  • StackBlitz is free; FaunaDB starts at $25/mo.
  • Only FaunaDB lists document-relational model; only StackBlitz lists bolt.new AI app builder.
  • Where StackBlitz falls short: specific Teams and Enterprise pricing figures are not published; visitors must request a quote or infer from the pricing calculator.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which FaunaDB and StackBlitz actually diverge.

Attributes where FaunaDB and StackBlitz differ
AttributeFaunaDBStackBlitz
CategoryDatabasesDeveloper Tools

Identical on both: starting price (Free), pricing model (Freemium), free tier (Yes), platforms (Web).

Not yet recorded: founded for StackBlitz.

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in FaunaDB

  • Document-relational model
  • FQL v10
  • Distributed ACID transactions
  • HTTPS access
  • User-defined functions
  • Attribute-based access control
  • Document history
  • Event streaming

Only in StackBlitz

  • WebContainers
  • Bolt.new AI app builder
  • Instant boot times
  • GitHub project import
  • Team collaboration
  • Offline functionality

What people use each for

The jobs each tool is most often brought in to do.

FaunaDB

  • Keeping an existing Fauna-backed application alive on self-hosted infrastructure while a migration is planned and fundednot StackBlitz
  • Extracting historical data from a Fauna dataset that can no longer be reached through the hosted APInot StackBlitz
  • Studying a production implementation of deterministic distributed transactions, since the full server source is now readable under Apache 2.0not StackBlitz
  • Forking the engine deliberately, where an organisation has JVM and distributed-systems staff and wants a document-relational store it fully controlsnot StackBlitz

StackBlitz

  • Editing a GitHub repository instantly in the browser without cloning itnot FaunaDB
  • Generating a working web app from a text prompt with Bolt.newnot FaunaDB
  • Sharing private projects across a team without individual GitHub seats for viewersnot FaunaDB
  • Running lightweight Node.js projects with no local setupnot FaunaDB

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

FaunaDB

  • The hosted service was wound down in 2025, so there is no managed Fauna to buy; every remaining user either operates a JVM cluster themselves or migrates, and both are projects rather than tasks
  • The open-sourced repository has had no substantive activity since May 2025 and the drivers were frozen alongside it, so you inherit responsibility for security patches in a Scala distributed database that almost nobody else is running
  • FQL has no wire or dialect compatibility with anything else, so migrating off is a rewrite of every query, index and access rule in the application rather than a data export
  • No BI tool, ORM or CDC connector speaks FQL, so reporting and analytics always required exporting the data first, and that export tooling is now also unmaintained
  • The community was small before the shutdown and has dispersed since, so operational answers, tuning advice and people who have run a Fauna cluster in anger are all scarce when something breaks

StackBlitz

  • Specific Teams and Enterprise pricing figures are not published; visitors must request a quote or infer from the pricing calculator
  • Browser-based execution via WebContainers has limits on which native/binary dependencies can run compared to a real server-backed environment
  • Heavy or resource-intensive workloads may be constrained by the end user's own browser and machine resources

Pricing, plan by plan

FaunaDB

Free
  • FreeFree
    • 100K read ops
    • 50K write ops
    • 1GB storage
  • Pro$25/mo
    • Pay per use
    • Priority support
    • Advanced features

StackBlitz

Free
  • PersonalFree
    • Unlimited public projects, collections, and GitHub repositories
    • View and edit without a GitHub account
  • TeamsOn request
    • Private collections and repositories for paid members
    • Free and paid member roles
    • Automatic permission mirroring for org-owned repositories

Which should you pick?

Choose FaunaDB if

  • You need document-relational model.
  • You want to start without paying.
  • You also want fql v10.
FaunaDB review

Choose StackBlitz if

  • You need webcontainers.
  • You want to start without paying.
  • You also want bolt.new ai app builder.
StackBlitz review

Questions people ask

Is FaunaDB or StackBlitz better?
Neither clearly leads. FaunaDB starts at Free and StackBlitz at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, FaunaDB or StackBlitz?
FaunaDB starts at Free and StackBlitz at Free.
Does FaunaDB or StackBlitz run on more platforms?
Both run on Web, so platform support will not decide this one for you.
Can I use FaunaDB for free?
Both have a free tier, so you can try either at no cost before committing.
What is FaunaDB best used for?
FaunaDB is most often used for keeping an existing fauna-backed application alive on self-hosted infrastructure while a migration is planned and funded, extracting historical data from a fauna dataset that can no longer be reached through the hosted api, studying a production implementation of deterministic distributed transactions, since the full server source is now readable under apache 2.0, forking the engine deliberately, where an organisation has jvm and distributed-systems staff and wants a document-relational store it fully controls. Of those, keeping an existing fauna-backed application alive on self-hosted infrastructure while a migration is planned and funded and extracting historical data from a fauna dataset that can no longer be reached through the hosted api are not what StackBlitz is typically brought in for.
What can FaunaDB do that StackBlitz cannot?
FaunaDB covers Document-relational model, FQL v10, Distributed ACID transactions, HTTPS access. StackBlitz covers WebContainers, Bolt.new AI app builder, Instant boot times, GitHub project import.

Answered from the vendors’ own pages

FaunaDB: Can I still sign up for Fauna as a service?

No. Fauna Inc. wound down the hosted service in 2025 and the company website is no longer serving. The only way to run Fauna now is to build and operate the open-sourced server yourself.

StackBlitz: Is there a free plan, and what are its limits?

Yes, the free Personal plan includes unlimited public StackBlitz projects, collections, and GitHub repositories, and lets anyone view and edit projects without needing a GitHub account.

Source
FaunaDB: What licence is the open-sourced code under?

Apache 2.0, with the copyright held by a FaunaDB Foundation. That is a permissive OSI licence with no competing-use clause, so you may run it, modify it and even offer it as a service.

StackBlitz: What does the Teams plan add?

Teams lets GitHub organizations add free or paid members; paid members get access to private collections and repositories, with permissions mirrored from GitHub-owned repos.

Source
FaunaDB: Is the open source version the same software that ran the cloud?

It is the core database engine. The control plane, billing, dashboard and multi-tenant operational tooling that made it a service are not part of the release, so you are running the engine, not the product.

StackBlitz: Is there an Enterprise option?

Yes, custom Enterprise plans are available and require contacting StackBlitz directly.

Source
FaunaDB: What should I migrate to?

There is no drop-in target. Teams that valued the document model with relationships usually land on Postgres with JSONB, and teams that valued the serverless HTTP access pattern usually land on DynamoDB or a managed Postgres with an HTTP driver. Either way the query layer is rewritten.

FaunaDB: How hard is it to self-host?

It builds as a fat JAR and runs as a multi-node JVM cluster. There is an OPERATING.md, but no supported packaging, no operator, no upstream releases and no support contract, so budget for a distributed-systems engineer, not a container.

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