# splitrb/split

:chart_with_upwards_trend: The Rack Based A/B testing framework

Repository: https://github.com/splitrb/split
Canonical: https://ross.abutalabs.com/products/splitrb-split
Homepage: https://rubygems.org/gems/split
Language: Ruby
License: MIT
License Family: permissive
Topics: split, redis, ab-testing, ruby, rails, rack
Last push: 2026-08-14T19:43:18+00:00

## Health v2 (maintenance only)
Score: 67/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 9, longevity 100
- inputs: {"age_days": 5590, "days_push": 19, "days_rel": 395, "gap_med": null, "n_releases_24m": 1}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2707, forks 369 (observed 2026-08-28T04:07:11.658944+00:00)

## What it is
Split is a Rack-based A/B testing framework for Ruby web applications, working with Rails, Sinatra, or any Rack-compatible app. It uses Redis as its datastore to run experiments, assign users consistent alternatives, and track conversions.

## Use cases
- run a/b tests on my rails app
- test different button images to see which converts better
- split traffic between two page variants
- track experiment conversions in a sinatra app
- a/b testing framework backed by redis
- show different text or templates per experiment group

## When to choose
- you have a Rack-based Ruby app (Rails, Sinatra) and want lightweight, extensible A/B testing
- you already run Redis and want experiment state stored there
- you need hacker-friendly customization of experiment logic and metrics

## When to avoid
- your stack is not Ruby/Rack-based
- you want a hosted SaaS experimentation platform with dashboards out of the box
- you cannot run Redis 4.0+ as a dependency

## Facets
- artifact type: library
- maturity: active
- function: middleware, analytics, caching
- domain: web-development, analytics, backend
- platform: ruby, self-hosted
- tags: ab-testing, rack, redis, experimentation, conversion-tracking, rails, sinatra, web-server

## Member repositories
- splitrb/split (main) score 67

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:11.658944+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:15:50.286634+00:00, confidence not recorded.
  - readme: https://github.com/splitrb/split (fetched 2026-08-28T04:07:11.658944+00:00, sha cccacdccaf6a)
  - homepage: https://rubygems.org/gems/split (fetched 2026-08-29T09:58:52.653510+00:00, sha ca0ca1ea6d9a)
  - site_page: https://guides.rubygems.org/command-reference (fetched 2026-08-29T09:58:52.662846+00:00, sha ef62154d6253)
  - site_page: https://rubygems.org/pages/about (fetched 2026-08-29T09:58:52.666348+00:00, sha e4248571fa5d)
- Data as of 2026-08-30T08:39:29.467469+00:00.