Dev tools · alternatives · 2026

24 alternatives to JoinCalc

financial calculators for US & UK tax, mortgage, retirement

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1CF
Calculator for US individual income tax, from 1970-present▲497
I wanted to share a simple web app I created recently, which lets you estimate income taxes owed in the US: https://taxsim.app All the calculations occur directly in the browser, and are powered by a Fortran program that has been converted to WASM using emscripten. This calculator was originally developed in the 1970s [1] by the non-profit National Bureau of Economic Research. NBER has been maintaining this F77 codebase for the last 50 years, and uses it primarily for academic research on tax policy. The Fortran source code itself is over 1MB of text, because it codifies both…
2022 · its alternatives →
2
AtlasPeak▲3
Free UK financial calculators - mortgage, stamp duty & more
Jul 2026 · atlaspeak.app · its alternatives →
3
TaxSight▲3
Free UK tax calculators with 200+ pre-built salary pages
Apr 2026 · taxsight.co.uk · its alternatives →
4
Wealth Calculator Hub▲4
Free financial calculators for UK, US, Canada, India & Aus
Jun 2026 · wealthcalculatorhub.com · its alternatives →
5
TheTaxCalc ▲1
Free 2026 tax calculator — paycheck, mortgage, 401k
Jun 2026 · thetaxcalc.com · its alternatives →
6
PayCalcHub▲5
Take-home pay calculators for all 50 US states. Always free.
Jul 2026 · paycalchub.com · its alternatives →
7
Snappy FinCalc▲6
Smart Financial Calculators
Nov 2025 · apps.apple.com · its alternatives →
8
Canadian Financial Calculators — Free▲2
Canadian finance calculators — TFSA, tax, mortgage & more
Jul 2026 · canadacalc.net · its alternatives →
9
WageLab▲2
Free UK take-home pay calculator. Calculate your salary.
Jun 2026 · wagelab.co.uk · its alternatives →
10
USAFinCalc▲2
Free IRS-accurate financial calculators for Americans
May 2026 · usafincalc.com · its alternatives →
11
PaycheckCalc▲3
Accurate 2026 take-home pay calculator for all 50 US states
Aug 2026 · usepaycheckcalculator.app · its alternatives →
12
SalaryCalc▲3
See your real take-home pay after taxes
Jun 2026 · salarycalcnet.com · its alternatives →
13
MortgageCalcGlobal▲6
Free mortgage calculator
Oct 2025 · mortgagecalcglobal.com · its alternatives →
14
FinanceCalc Hub▲3
Free Online Financial Calculators
Aug 2026 · finance.webtools3.com · its alternatives →
15
taxcalculatorsuk.co.uk▲5
25+ free UK tools for finance, wellness & daily life
2025 · taxcalculatorsuk.co.uk · its alternatives →
16
FI Calc – A Financial Independence Calculator▲14
FI Calc is a powerful and flexible retirement calculator for FIRE. Simulate retirements using historical data that spans more than 100 years.
2020 · ficalc.app · its alternatives →
17
AusCalc▲4
Free Australian tax calculators. Instant, private, no signup
Jun 2026 · auscalc.com.au · its alternatives →
18
FinCalc▲2
Free financial calculators — no signup, all in your browser
Jul 2026 · finclac.com · its alternatives →
19
SmartTaxCalc▲9
38 free Indian tax & finance calculators, CA-reviewed
Jul 2026 · smarttaxcalc.in · its alternatives →
20
PoundWise.uk▲2
Free UK tax & finance calculators - no jargon, just answers
Apr 2026 · poundwise.uk · its alternatives →
21
GetMortgageCalc▲1
Free mortgage calculator for UK, US, Canada & Australia
May 2026 · getmortgagecalc.com · its alternatives →
22
PropertyCalc
Free UK property calculators no signup needed
Mar 2026 · propertycalc.site · its alternatives →
23
US Pay Calc▲5
Free paycheck calculator for all 50 US states
Jul 2026 · uspaycalc.com · its alternatives →
24
FinCalc▲4
17 free financial calculators with live charts, no signup
Jul 2026 · getfincalc.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 →