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Business Intelligence · head to head

Fabi vs Jitsu

Fabi logo

Fabi

Business Intelligence

AI notebooks combining SQL, Python and no-code for small data teams

From
Free
Free plan
Yes
Visit FabiFull review
Jitsu logo

Jitsu

Developer Tools

Open source event pipeline that streams behavioural data to your own warehouse

From
Free
Free plan
Yes
Visit JitsuFull review

The short version

  • Jitsu is an MIT-licensed alternative to Segment.
  • Free plans on both; paid from $39/mo and $99/mo.
  • Only Fabi lists smart Reports; only Jitsu lists event collection.
  • Where Fabi falls short: the free and Builder tiers cap AI requests, and the daily cap on Starter is reached quickly during genuine exploratory work.
  • Prices and features on this page were last checked on 31 August 2026.

Where they differ

Only the attributes on which Fabi and Jitsu actually diverge.

Attributes where Fabi and Jitsu differ
AttributeFabiJitsu
Pricing modelPer user per monthPer month by event volume
PlatformsWebWeb, Linux, Self-hosted, iOS, Android
CategoryBusiness IntelligenceDeveloper Tools

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

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 Fabi

  • Smartbooks
  • Smart Reports
  • AI analysis
  • Scheduled runs
  • Database connectors
  • Viewer seats

Only in Jitsu

  • Event collection
  • Warehouse destinations
  • Connector syncs
  • Transformations
  • Bundled ClickHouse
  • Event debugger
  • Self-hosting
  • Custom domains

What people use each for

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

Fabi

  • A single analyst at a startup fielding ad hoc questions faster than dashboards can be built for themnot Jitsu
  • An operations team that needs Python for a one-off analysis but has to hand the result to non-technical colleaguesnot Jitsu
  • Replacing a set of scheduled Jupyter notebooks that nobody outside the data team can read or rerunnot Jitsu
  • Exploratory work against a warehouse where building a semantic model first would cost more than the answer is worthnot Jitsu

Jitsu

  • A team paying five figures a year to a customer data platform when all it actually does is send events to Snowflakenot Fabi
  • An engineering group that needs event collection running inside its own VPC for data residency or security review reasonsnot Fabi
  • A product analytics setup that wants raw events in the warehouse as the source of truth rather than trapped in a vendor toolnot Fabi
  • A startup that needs first-party event collection on its own domain to reduce loss from tracker blocking without paying CDP pricesnot Fabi

Where each one falls short

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

Fabi

  • Fabi is an early-stage company with a small team, so the durability risk is real and there is no obvious migration path for Smartbooks if it stops trading
  • There is no meaningful governance layer: no data catalogue, no certified metric definitions and limited lineage, so it does not scale to an organisation that needs a single agreed number
  • The free and Builder tiers cap AI requests, and the daily cap on Starter is reached quickly during genuine exploratory work
  • Connector counts are limited by tier, so the Builder plan at 39 dollars connects to exactly one data source, which is rarely enough in practice
  • It overlaps heavily with what Snowflake, Databricks and Hex now ship natively, so a company already paying for one of those is buying a fourth notebook interface

Jitsu

  • Jitsu is a pipeline, not a customer data platform, so identity resolution, audience building and reverse ETL are absent and a marketing team expecting Segment parity will be disappointed
  • Connector sync frequency is deliberately tiered, with the free plan limited to manual runs and one daily sync, so anything approaching operational freshness requires the paid plan or self-hosting
  • Self-hosting means you own the reliability of a system that drops data silently when misconfigured, and event loss is uniquely hard to notice because nothing errors, the numbers are just quietly lower
  • The connector catalogue is far smaller than Fivetran or Airbyte, so if your requirement is pulling from many SaaS sources rather than pushing events, Jitsu is the wrong half of the problem
  • It is a small company with a small commercial team, so enterprise procurement processes around security review, contractual SLAs and support escalation take longer than with an incumbent vendor

Pricing, plan by plan

Fabi

Free
  • StarterFree
    • One builder seat
    • Ten dashboard viewers
    • Five Smartbooks
  • Builder$39/mo
    • Twenty-five Smart Report viewers
    • Ten Smartbooks with workflows
    • One data connector
  • Team$199/mo
    • Four builder seats, extra seats at 39 USD
    • Fifty viewers
    • Premium connector
  • EnterpriseOn request
    • Unlimited builder seats
    • Full connector access
    • Custom security review

Jitsu

Free
  • Open SourceFree
    • MIT licence
    • Self-host on any cloud
    • No usage limits
  • Cloud FreeFree
    • Unlimited captured events
    • 200,000 active events per month
    • Manual connector runs only
  • Business$99/mo
    • 2,000,000 active events per month
    • $40 per additional million events
    • Hourly connector sync frequency
  • EnterpriseOn request
    • Custom event volume
    • One minute sync frequency
    • Unlimited active syncs

Which should you pick?

Choose Fabi if

  • You need smartbooks.
  • You want to start without paying.
  • You also want smart reports.
Fabi review

Choose Jitsu if

  • You need event collection.
  • You want to start without paying.
  • You work on Web, Linux, Self-hosted, iOS, Android.
  • You also want warehouse destinations.
Jitsu review

Questions people ask

Is Fabi or Jitsu better?
Neither clearly leads. Fabi starts at Free and Jitsu at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Fabi or Jitsu?
Fabi starts at Free and Jitsu at Free.
Does Fabi or Jitsu run on more platforms?
Fabi runs on Web. Jitsu runs on Web, Linux, Self-hosted, iOS, Android.
Can I use Fabi for free?
Both have a free tier, so you can try either at no cost before committing.
What is Fabi best used for?
Fabi is most often used for a single analyst at a startup fielding ad hoc questions faster than dashboards can be built for them, an operations team that needs python for a one-off analysis but has to hand the result to non-technical colleagues, replacing a set of scheduled jupyter notebooks that nobody outside the data team can read or rerun, exploratory work against a warehouse where building a semantic model first would cost more than the answer is worth. Of those, a single analyst at a startup fielding ad hoc questions faster than dashboards can be built for them and an operations team that needs python for a one-off analysis but has to hand the result to non-technical colleagues are not what Jitsu is typically brought in for.
What can Fabi do that Jitsu cannot?
Fabi covers Smartbooks, Smart Reports, AI analysis, Scheduled runs. Jitsu covers Event collection, Warehouse destinations, Connector syncs, Transformations.

Answered from the vendors’ own pages

Fabi: Is there a free plan?

Yes, a Starter tier with one builder, ten viewers, five Smartbooks and ten AI requests a day.

Jitsu: Is Jitsu the same as Jitsi?

No. Jitsu is an open source event data pipeline. Jitsi is an unrelated video conferencing project.

Fabi: Do viewers cost money?

Viewers are bundled by tier rather than charged individually; builders are the priced seat.

Jitsu: Can I self-host for free?

Yes. The project is MIT licensed with no usage limits when self-hosted.

Fabi: Can I run arbitrary Python?

Yes, Smartbooks include Python cells alongside SQL and no-code steps.

Jitsu: How does the cost compare with Segment?

The Business plan is 99 US dollars a month for two million active events, where a per-tracked-user CDP typically costs orders of magnitude more at comparable volume.

Fabi: How many data connectors does the entry paid plan include?

One. Additional and premium connectors come with the Team tier.

Jitsu: Does Jitsu do identity resolution?

No. It transports and transforms events; identity stitching and audiences are not part of the product.

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