
kdiff3
Beyond Compare
WinMerge
Meld
DiffMerge
Araxis Merge
P4Merge
Devart Code Compare
DevFinanceTools
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths yourself.
Calculators
There are also short plain-English guides on the topics behind the tools.
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Beyond Compare - Beyond Compare allows you to compare files and folders.
Omni Calculator - Helping you make rational decisions, one calculation at a time.
WinMerge - WinMerge is an open source differencing and merging tool for Windows.
calculator.net - Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
Meld - What is Meld? Meld is a visual diff and merge tool targeted at developers.
Build vs. Buy Calculator - Should you build an internal tool? Or just buy it?