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Databases · head to head

Convex vs GitLab

Convex logo

Convex

Databases

Reactive backend combining a document database, TypeScript server functions and live queries, source-available under the Functional Source Licence.

From
Free
Free plan
Yes
Visit ConvexFull review
GitLab logo

GitLab

Developer Tools

The One DevOps Platform

From
Free
Free plan
Yes
Visit GitLabFull review

The short version

  • GitLab is a complete DevOps platform, delivered as a single application.
  • GitLab is free; Convex starts at $25/mo.
  • Only Convex lists reactive queries; only GitLab lists git repository management.
  • Where GitLab falls short: baseline requires 8 vCPU and 16 GB RAM for single-node installations; resource-intensive.
  • Prices and features on this page were last checked on 13 November 2026.

Where they differ

Only the attributes on which Convex and GitLab actually diverge.

Attributes where Convex and GitLab differ
AttributeConvexGitLab
Pricing modelSubscriptionOpen-source
PlatformsWebLinux, Self-hosted, Web
CategoryDatabasesDeveloper Tools

Identical on both: starting price (Free), free tier (Yes).

Not yet recorded: founded for Convex.

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 Convex

  • Reactive queries
  • TypeScript server functions
  • ACID transactions
  • Document database
  • Scheduling and workflows
  • File storage
  • Text and vector search
  • End-to-end types

Only in GitLab

  • Git repository management
  • CI/CD pipelines
  • Issue tracking
  • Code review
  • Wiki
  • Container registry
  • Security scanning
  • Monitoring

What people use each for

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

Convex

  • Collaborative applications where several users see the same data and every client must reflect a change immediatelynot GitLab
  • Agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cachenot GitLab
  • Small product teams who need a complete backend, including auth integration, file storage and subscriptions, without hiring infrastructure engineersnot GitLab
  • Prototypes that must become production without a rewrite of the data layer, where end-to-end TypeScript types remove a class of integration bugsnot GitLab

GitLab

  • Git repository management and version controlnot Convex
  • CI/CD pipeline automationnot Convex
  • DevOps and release managementnot Convex
  • Security and compliance workflowsnot Convex

Where each one falls short

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

Convex

  • The Functional Source Licence is not an OSI open source licence: competing use is prohibited until each release reaches its second anniversary and converts to Apache 2.0, so you may self-host but you may not build a service on it
  • Transactions are bounded at one second of user code, 16 MiB read and written, 32,000 documents scanned and 16,000 written, so every backfill, migration or bulk import has to be chunked into scheduled batches rather than written as a single operation
  • There is no SQL and no query planner; you declare up to 32 indexes per table and traverse them, and joins are loops in TypeScript, so an unanticipated access pattern requires a schema and index change rather than a new query
  • It is not an analytical database, so reporting means streaming data out to a warehouse and BI tools cannot be pointed at Convex directly, which adds a pipeline the architecture diagram did not originally include
  • The application is written against Convex's function and client APIs rather than a standard protocol, so leaving means rewriting the data access layer and replacing the reactivity model, not repointing a connection string

GitLab

  • Baseline requires 8 vCPU and 16 GB RAM for single-node installations; resource-intensive
  • PostgreSQL is mandatory; no support for alternative databases
  • Redis or Valkey cache required; adds infrastructure complexity
  • High-availability deployments require inter-node latency below 5 ms; difficult to achieve across geographically distributed sites
  • Requires self-hosting and maintenance; GitLab.com SaaS only available to GitLab team members for administration

Pricing, plan by plan

Convex

Free
  • Free & StarterFree
    • Supports 1-6 developers
    • Reactive database
    • File storage
  • Professional$25
    • Supports up to 20 developers
    • All Starter features
    • Log streaming
  • Business & Enterprise$2,500/month minimum
    • Supports 50+ developers
    • SAML/SSO
    • Service SLAs

GitLab

Free

No published plan breakdown. See the GitLab review.

Which should you pick?

Choose Convex if

  • You need reactive queries.
  • You want to start without paying.
  • You also want typescript server functions.
Convex review

Choose GitLab if

  • You need git repository management.
  • You want to start without paying.
  • You work on Linux, Self-hosted, Web.
  • You also want ci/cd pipelines.
GitLab review

Questions people ask

Is Convex or GitLab better?
Neither clearly leads. Convex starts at Free and GitLab at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Convex or GitLab?
Convex starts at Free and GitLab at Free.
Does Convex or GitLab run on more platforms?
Convex runs on Web. GitLab runs on Linux, Self-hosted, Web.
Can I use Convex for free?
Both have a free tier, so you can try either at no cost before committing.
What is Convex best used for?
Convex is most often used for collaborative applications where several users see the same data and every client must reflect a change immediately, agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cache, small product teams who need a complete backend, including auth integration, file storage and subscriptions, without hiring infrastructure engineers, prototypes that must become production without a rewrite of the data layer, where end-to-end typescript types remove a class of integration bugs. Of those, collaborative applications where several users see the same data and every client must reflect a change immediately and agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cache are not what GitLab is typically brought in for.
What can Convex do that GitLab cannot?
Convex covers Reactive queries, TypeScript server functions, ACID transactions, Document database. GitLab covers Git repository management, CI/CD pipelines, Issue tracking, Code review.

Answered from the vendors’ own pages

Convex: Is Convex open source?

It is source-available under FSL-1.1-Apache-2.0. You may read, modify and self-host it, but competing use is prohibited until each release converts to Apache 2.0 on its second anniversary.

Convex: Can I self-host it?

Yes. The backend, dashboard and CLI can run on your own infrastructure, with most of the features of the cloud product. Self-hosted instances include a telemetry beacon that can be disabled.

Convex: Does it support SQL?

No. Data is accessed through a TypeScript query builder over declared indexes. Relationships are traversed in code, which is explicit and type-safe but means no ad hoc querying.

Convex: What happens if a mutation exceeds the limits?

It fails rather than running longer, so bulk work must be split into batches and scheduled. The limits are per transaction: one second of user code, 16 MiB read and written, 32,000 documents scanned and 16,000 written.

Convex: How does reactivity actually work?

Queries are deterministic functions and Convex records the data each one read. When a mutation changes that data, affected queries are re-run and subscribed clients receive the new result, so cache invalidation is handled by the platform.

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