Side by side

Diff Suite vs Diffract

Both stand on diff and merge tools. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Diff Suite

Free plan Web

Diff Suite offers free, browser-based comparison and merging for two text files, with editing tools and support for many file formats. Consider its two-file scope and lack of API or folder comparison if those capabilities matter to your work.

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Diffract

Free plan LinuxMacWindows

Diffract offers broad file comparison in a desktop app and CLI, with the free tier covering unlimited file and directory diffs. Pro is a one-time per-seat purchase for document comparison, Git tools and three-way merging; check its version ceiling and support terms before buying.

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The facts

	Diff Suite	Diffract
Free plan	Yes	Yes
Open source	Not published	Not published
Runs on	Web	Linux, Mac, Windows
Lowest paid plan	Free or on request	Pro: $34 per seat, paid once
Plans published	1	2
Maker	Not published	Not published
Website	diffsuite.com	getdiffract.com
On diff and merge tools	#10 of 29	#6 of 29

Diff Suite: what it does well

Updates differences as you type.
Move edits between panes with arrows.
Opens many common text file formats.
Free plan has no sign-up or usage limits.
Works on phones and tablets, according to the maker.

What to know first

Does not compare folders.
No programmatic API or embeddable library.
Does not support the WinMerge plugin ecosystem.

Diffract: what it does well

Free tier allows commercial use
Highlights syntax for more than 30 languages
Free edition includes CLI and three diff algorithms
Pro includes three-way merge and Git history tools
Comparisons run locally, according to the maker

What to know first

Pro costs $34, paid once per seat
Pro license keys have a version ceiling
Maker is not obligated to provide maintenance or technical support
Redistribution of the free tier is not permitted

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