Databases · head to head
Convex vs Vite
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
The short version
- Vite is a next generation frontend build tool.
- Vite is free; Convex starts at $25/mo.
- Where Vite falls short: does not support Node.js built-in polyfills, requiring manual configuration for CommonJS libraries.
- Prices and features on this page were last checked on 13 November 2026.
Where they differ
Only the attributes on which Convex and Vite actually diverge.
Identical on both: starting price (Free), free tier (Yes).
Not yet recorded: pricing model for Vite, 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 Vite
Nothing recorded that Convex does not also cover.
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 Vite
- Agent backends that need durable state, scheduled work and transactional writes without assembling a queue, a database and a cachenot Vite
- Small product teams who need a complete backend, including auth integration, file storage and subscriptions, without hiring infrastructure engineersnot Vite
- Prototypes that must become production without a rewrite of the data layer, where end-to-end TypeScript types remove a class of integration bugsnot Vite
Vite
- Developers speeding up hot module replacement during React developmentnot Convex
- Vue.js teams reducing rebuild times in large monorepo codebasesnot Convex
- Teams building with TypeScript without additional tooling configurationnot Convex
- Open-source contributors testing code changes in sub-second feedbacknot 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
Vite
- Does not support Node.js built-in polyfills, requiring manual configuration for CommonJS libraries
- File watching fails on Windows Subsystem for Linux 2 in certain conditions
- Smaller ecosystem and community compared to webpack
- Ampersands in Windows project paths cause module resolution failures
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
Vite
FreeNo published plan breakdown. See the Vite review.
Which should you pick?
Choose Convex if
- You need reactive queries.
- You want to start without paying.
- You also want typescript server functions.
Questions people ask
- Is Convex or Vite better?
- Neither clearly leads. Convex starts at Free and Vite at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Convex or Vite?
- Convex starts at Free and Vite at Free.
- Does Convex or Vite run on more platforms?
- Convex runs on Web. Vite runs on API.
- 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 Vite is typically brought in for.
- What can Convex do that Vite cannot?
- Convex covers Reactive queries, TypeScript server functions, ACID transactions, Document database.
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.
Vite: Does Vite support CommonJS dependencies?
Vite automatically converts CommonJS dependencies to ES modules during pre-bundling using esbuild, but it does not support Node.js built-in polyfills. For projects requiring Node builtins, additional configuration may be needed.
SourceConvex: 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.
Vite: Can Vite work offline?
Vite requires internet for initial dependency pre-bundling with esbuild. Once dependencies are pre-bundled and cached, development can continue with local file serving, but full offline development is not supported.
SourceConvex: 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.
Vite: What are Vite's system requirements on Windows?
Vite can run on Windows, but WSL2 users may experience file watching issues where Vite cannot detect file changes in certain conditions. Windows users with project paths containing ampersands may encounter module resolution failures with npm.
SourceConvex: 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.
Vite: Does Vite support TypeScript, JSX, and CSS out of the box?
Yes. Vite natively supports TypeScript, JSX, CSS, and WebAssembly without additional configuration needed for basic use.
SourceConvex: 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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