Dev tools · alternatives · 2026

24 alternatives to ABBA - Beautiful, open-source A/B test calculator

ABBA is an open-source A/B test calculator designed for developers. It helps teams analyze and interpret results from A/B testing experiments by performing statistical calculations on test data. The tool is built with… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ABBA - Beautiful, open-source A/B test calculator launched in 2012; newer entries below may have overtaken it.

1
Open-source A/B testing framework▲199
Open Source Feature Flags, Experimentation, and Product Analytics - growthbook/growthbook
2021 · github.com · its alternatives →
2
A/B Test Checker▲76
Check if your A/B test is relevant
2022 · its alternatives →
3AC
ABTestCalculator.com, an open source A/B test significance calculator▲7
Determine whether or not your A/B tests are statistically significant with our free visual A/B test calculator.
2015 · abtestcalculator.com · its alternatives →
4
Dual Kind▲74
Simple A/B testing
2020 · dualkind.com · its alternatives →
5
Chamath Abs Calculator▲127
Calculate how long will you take to get SixPAC ab'ed
2021 · its alternatives →
6
abtest.design▲75
Curated collection of A/B test results
2024 · abtest.design · its alternatives →
7
AbTest.io▲122
A free url shortener with A/B testing features
2017 · cbsplit.com · its alternatives →
8
Clobbr▲444
Easy API endpoint load testing without breaking the bank
2023 · clobbr.app · its alternatives →
9
Tiny A/B Test▲163
Lightweight a/b testing for saas founders
Oct 2025 · tinyabtest.com · its alternatives →
10
Inspirational A/B Tests▲212
30+ inspiring A/B test results and takeaways
2021 · inspirationaltests.xyz · its alternatives →
11
Open-source A/B testing platform▲11
Open Source Feature Flags, Experimentation, and Product Analytics - growthbook/growthbook
2021 · github.com · its alternatives →
12
Hissab▲108
Hissab is a strict, unit-aware natural-language calculator for exact units, dates, finance, developer math, and AI-agent workflows. Free, open-source, and installable.
2023 · hissab.io · its alternatives →
13
Mida.so▲236
Free and lightweight A/B testing tool for websites
2024 · mida.so · its alternatives →
14
A/B Test significance calculator▲131
Optimize tests with visual & interactive insights
2024 · tggl.io · its alternatives →
15
Optibase 2.0▲177
Run A/B, split, and multivariate tests directly in Webflow
2025 · optibase.io · its alternatives →
16
Micro subject line statistical significance calculator▲6
A/B tests. Made with Aaron Swartz. Hidden cats.
2015 · stats.theinfo.org · its alternatives →
17
Speero's AB Test Tool Comparison▲68
Compare features of 30+ AB Testing tools
2023 · speero.com · its alternatives →
18
AB-Labz▲3
Plan, analyze, and manage A/B tests in one workspace
Jul 2026 · ab-labz.com · its alternatives →
19
Splitter A/B Testing▲77
Split and track in real time, by AppDrag
2018 · splitter.appdrag.com · its alternatives →
20
Increab▲102
Run A/B Tests in the easiest way to increase your sales.
2022 · its alternatives →
21
Abify▲6
A/b testing tool | conversion rate optimization platform
Dec 2025 · its alternatives →
22
Free A/B testing course▲28
The free framework for tests that actually move revenue
Mar 2026 · optibase.io · its alternatives →
23TW
The Whicher: A/B test the Real World▲20
2012 · thewhicher.com · its alternatives →
24AS
Ablator – Switch features on or A/B test them inside your app▲47
Ablator is a Service that enables you to roll out functionalities in a controlled way, and perform good A/B testing.
2017 · ablator.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →