Testing · head to head
Jest vs Umami
Jest
Testing
JavaScript testing framework, moved from Meta to the OpenJS Foundation in 2022
- From
- Free
- Rated
- -
Umami
Marketing
Open source, cookie-free web analytics you can self-host for the cost of a database
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Jest since moving to OpenJS Foundation governance, release cadence and headline feature development have visibly slowed compared to when a dedicated Meta team drove the roadmap.; Umami there is no cohort analysis, retention curve, session replay or multi-touch attribution, so a marketing team that needs to justify channel spend will still buy a second tool and Umami becomes a supplementary dashboard.
- They diverge on capability: Jest covers Zero-config test runner, Umami covers Cookie-free tracking.
- Prices and features above were last checked on 1 September 2026.
Where they differ
Only the attributes on which Jest and Umami actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
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 Jest
- Zero-config test runner
- Snapshot testing
- Built-in mocking
- Parallel test execution
- Code coverage reporting
- Watch mode
Only in Umami
- Cookie-free tracking
- Self-hosting
- Small tracking script
- Custom events
- Funnels and goals
- Multi-site and teams
- Public dashboards
- API access
What people use each for
The jobs each tool is most often brought in to do.
Jest
- A React or general JavaScript project wanting a zero-configuration test runner with mocking and snapshot testing built innot Umami
- A team that wants confidence in long-term maintenance because the project sits under a vendor-neutral foundation rather than one companynot Umami
- An existing Jest codebase deciding whether to migrate to Vitest for a Vite-based build, weighing migration cost against Vitest's faster ESM-native startupnot Umami
- A team standardising on one test runner across many JavaScript repositories without paying a per-seat or per-project licence feenot Umami
Umami
- A developer who wants traffic numbers on a personal or client site without adding a consent bannernot Jest
- An organisation whose legal or procurement team has ruled out sending visitor data to a US advertising companynot Jest
- A high-traffic site where hosted analytics priced by pageview band has become expensive and self-hosting removes the ceiling entirelynot Jest
- A team that wants analytics data in a database they already control so they can query and join it themselvesnot Jest
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Jest
- Since moving to OpenJS Foundation governance, release cadence and headline feature development have visibly slowed compared to when a dedicated Meta team drove the roadmap.
- Jest's architecture predates native ES modules, and using it inside a Vite-based or fully ESM project often needs extra configuration that Vitest, built ESM-first, does not require.
- Snapshot tests are easy to write and easy to approve blindly, and teams that do not review snapshot diffs carefully end up with tests that pass without actually verifying behaviour.
- Test suite startup and transform time is slower than Vitest's on large codebases, because Jest transforms files with Babel or ts-jest rather than using a native ESM-first pipeline.
- Being free and open source, there is no vendor support contract or SLA; production-critical reliance on Jest depends entirely on volunteer and community maintainer availability.
Umami
- There is no cohort analysis, retention curve, session replay or multi-touch attribution, so a marketing team that needs to justify channel spend will still buy a second tool and Umami becomes a supplementary dashboard.
- Self-hosting is only free in licence terms; you own the database, the upgrades, the backups and the query performance at scale, and a busy site's events table grows quickly enough to need real attention.
- Because it stores no persistent identifier, it cannot follow a user across devices or sessions in any meaningful way, which makes returning-visitor and lifetime-value questions unanswerable by design rather than by omission.
- Cloud overage is billed per event beyond the plan allowance, so a traffic spike or a badly instrumented custom event can produce a bill materially above the $20 or $200 headline before anyone notices.
- It is maintained by a small team, so the pace of new capability is modest and enterprise expectations such as SSO, granular role permissions and formal support agreements are limited compared with commercial analytics vendors.
Pricing, plan by plan
Jest
Free- JestFree
- Full functionality, no usage limits
- Community support via GitHub and Discord
- No paid tier or enterprise edition exists
Umami
Free- Self-hostedFree
- MIT licensed, no licence fee
- No event limit imposed by the software
- Unlimited websites and users
- Cloud HobbyFree
- Up to 100,000 events per month
- 3 websites
- 6 months data retention
- Cloud Pro$20/month
- Up to 1,000,000 events per month
- Unlimited websites
- Unlimited team members
- Cloud Business$200/month
- Up to 10,000,000 events per month
- All Pro features
- Higher volume overage rate
Which should you pick?
Choose Jest if
- You need zero-config test runner.
- You want to start without paying.
- You work on Linux, macOS, Windows.
- You also want snapshot testing.
Choose Umami if
- You need cookie-free tracking.
- You want to start without paying.
- You work on Web, Linux.
- You also want self-hosting.
Questions people ask
- Is Jest or Umami better?
- Neither clearly leads. Jest starts at Free and Umami at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Jest or Umami?
- Jest starts at Free and Umami at Free.
- Does Jest or Umami run on more platforms?
- Jest runs on Linux, macOS, Windows. Umami runs on Web, Linux.
- Can I use Jest for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Jest best used for?
- Jest is most often used for a react or general javascript project wanting a zero-configuration test runner with mocking and snapshot testing built in, a team that wants confidence in long-term maintenance because the project sits under a vendor-neutral foundation rather than one company, an existing jest codebase deciding whether to migrate to vitest for a vite-based build, weighing migration cost against vitest's faster esm-native startup, a team standardising on one test runner across many javascript repositories without paying a per-seat or per-project licence fee. Of those, a react or general javascript project wanting a zero-configuration test runner with mocking and snapshot testing built in and a team that wants confidence in long-term maintenance because the project sits under a vendor-neutral foundation rather than one company are not what Umami is typically brought in for.
- What can Jest do that Umami cannot?
- Jest covers Zero-config test runner, Snapshot testing, Built-in mocking, Parallel test execution. Umami covers Cookie-free tracking, Self-hosting, Small tracking script, Custom events.
Answered from the vendors’ own pages
Jest: Who maintains Jest now that it is not a Meta project?
The OpenJS Foundation, the same body hosting Node.js and Electron, with day-to-day maintenance led by community contributors rather than a Meta team.
Umami: Is Umami really free?
Self-hosted, yes; it is MIT licensed with no event cap. You pay for the server and database. Umami Cloud has a free tier at 100,000 events a month and paid tiers from $20.
Jest: Is there a paid or enterprise version of Jest?
No. It is entirely open source with no licence fee, paid tier or enterprise edition.
Umami: Do I need a cookie consent banner?
For Umami analytics specifically, generally no, because it sets no cookies and stores no personal data. Other tags on your site may still require one.
Jest: Should a new project use Jest or Vitest?
For a Vite-based build, Vitest is generally the more natural fit; for an existing Jest codebase or a non-Vite setup, Jest remains a reasonable default.
Umami: Can it replace Google Analytics?
For traffic, referrers and event counts, yes. For attribution modelling, audiences and advertising integration, no.
Umami: What does it need to run?
A container and a PostgreSQL or MySQL database. Most people deploy it on infrastructure they already pay for.
Related pages
Other head to heads
- Jest vs Vitest
- Jest vs Detox
- Jest vs Cypress
- Jest vs Playwright
- Jest vs JUnit
- Jest vs TestNG
- Jest vs pytest
- Jest vs Cucumber
- Jest vs Robot Framework
- Jest vs Percy
- Jest vs k6
- Jest vs QA Wolf
- Jest vs Tricentis Tosca
- Jest vs Xray Test Management
- Jest vs Zephyr Scale
- Jest vs Qase
- Jest vs Matomo
- Jest vs Plausible
- Jest vs Fathom Analytics
- Jest vs Mautic
- Jest vs Countly
- Jest vs Freshpaint
- Jest vs Simple Analytics
- Jest vs Attribution
- Jest vs CallRail
- Jest vs Microsoft Clarity
- Jest vs Octoboard
- Jest vs Onclusive
- Jest vs WebEngage
- Jest vs Woopra
- Jest vs Wunderkind
- Jest vs Whatagraph
- Jest vs MoEngage
- Jest vs Optimizely
- Umami vs Vitest
- Umami vs Detox
- Umami vs Cypress
- Umami vs Playwright
- Umami vs JUnit
- Umami vs TestNG
- Umami vs pytest
- Umami vs Cucumber
- Umami vs Robot Framework
- Umami vs Percy
- Umami vs k6
- Umami vs QA Wolf
- Umami vs Tricentis Tosca
- Umami vs Xray Test Management
- Umami vs Zephyr Scale
- Umami vs Qase
- Umami vs Matomo
- Umami vs Plausible
- Umami vs Fathom Analytics
- Umami vs Mautic
- Umami vs Countly
- Umami vs Freshpaint
- Umami vs Simple Analytics
- Umami vs Attribution
- Umami vs CallRail
- Umami vs Microsoft Clarity
- Umami vs Octoboard
- Umami vs Onclusive
- Umami vs WebEngage
- Umami vs Woopra
- Umami vs Wunderkind
- Umami vs Whatagraph
- Umami vs MoEngage
- Umami vs Optimizely