Dev tools · alternatives · 2026
24 alternatives to ABTestCalculator.com, an open source A/B test significance calculator
Determine whether or not your A/B tests are statistically significant with our free visual A/B test calculator.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. ABTestCalculator.com, an open source A/B test significance calculator launched in 2015; newer entries below may have overtaken it.
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Optimize tests with visual & interactive insights
2024 · tggl.io · its alternatives →
- 2
- 3AB
2012 · thumbtack.com · its alternatives →
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The free framework for tests that actually move revenue
Mar 2026 · optibase.io · its alternatives →
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Compare features of 30+ AB Testing tools
2023 · speero.com · its alternatives →
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A/B tests. Made with Aaron Swartz. Hidden cats.
2015 · stats.theinfo.org · its alternatives →
- 9
29 free calculators that show their work — no black boxes
Aug 2026 · calculatorcenter.online · its alternatives →
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See How Drunk You Are | BACdrunk.com
2025 · drunkcalculator.com · its alternatives →
- 12
Online Statistical Calculators for Students, Researchers
Oct 2025 · thestatscalculator.com · its alternatives →
- 13
Calq.dev▲7Free online calculators for everyday math and planning
Nov 2025 · calq.dev · its alternatives →
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Free online calculators for finance, astrology, health
2025 · calculat.co.in · its alternatives →
- 16
Calculator.Free offers 200+ free online calculators — mortgage, loan, income tax, BMI, percentage and more. Fast, accurate, mobile-friendly, no sign-up.
Jul 2026 · calculator.free · its alternatives →
- 17
Smart, fast & free calculators for everything you need
2025 · solveme.net · its alternatives →
- 18
Free online scientific calculator for math & more
2025 · scientificcalculatoronline.io · its alternatives →
- 19
Free Online General Weighted Average Calculator
2025 · mycalsuite.com · its alternatives →
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In-one online calculators | free tools for everyone
2025 · caculator.free.nf · its alternatives →
- 22
100% free, reliable & accurate calculators
Nov 2025 · technical-calculator.com · its alternatives →
- 23LC
We're sick of teaching (and using) SPSS, Stata, and R. Why isn't there a simple site that tells you which test to run, how to format your data, and how to interpret the results? We built LittleStat because we found the current tools unbearably painful. Looking forward to your feedback :) http://littlestat.com p.s. We're also looking for a couple more R/statistics experts to help us add tests and provide more detailed feedback.
2012 · littlestat.com · its alternatives →
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Free online tools for all your calculation needs
2025 · alltypecalculator.com · 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 →