KDiff3 vs Kompare

KDiff38.8Visit Kompare8.5Visit

Higher score KDiff3 #3 in File Comparison Software 8.8/10 Open source ✓ 2 of 5 features Visit KDiff3

vs

Kompare #5 in File Comparison Software 8.5/10 Free plan Free plan✓ 1 of 5 features Visit KDE

• KDiff3 fits best

  Free cross-platform three-way merging

• Kompare fits best

  Linux users needing a free graphical diff tool

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Side by side

Feature	KDiff3 8.8/10 Visit ↗	Kompare 8.5/10 Visit ↗
At a glance
Editor score	8.8	8.5
Ranking	#3 in File Comparison Software	#5 in File Comparison Software
Best for	Free cross-platform three-way merging	Linux users needing a free graphical diff tool
Pricing model	Free	Free
Starting price	Open source	Free plan
Free plan	Not checked yet	✓ (best)
Free trial	—	—
Deployment	Desktop	Desktop
Platforms	Windows, macOS, Linux	Linux
Support	Community, Docs	Community, Docs
Built for	Solo, Small business	Solo, Small business
Features KDiff3 2/5 · Kompare 1/5
Three-way merge	✓ (best)	Not checked yet
Folder comparison	✓	✓
Merge conflict tools	Not checked yet	Not checked yet
Binary comparison	Not checked yet	Not checked yet
Version-control support	Not checked yet	Not checked yet
Specs
Supported platforms	Not checked yet	Not checked yet
Our review
Pros	Supports two- and three-file comparison and merging Compares and merges folders across Windows, macOS, and Linux Offers editable conflict resolution with Git integration	Recursively compares folder contents and navigates changes across files Creates, applies, and reverts selected differences or complete patches Supports multiple diff formats plus command-line and standard-input workflows
Cons	Desktop-focused rather than browser-based Integration options center on Git and KIO Does not provide syntax highlighting	Runs on Linux rather than across multiple desktop platforms The documented merge scope is primarily two-way The published feature set does not include verified Git integration
Our verdict	KDiff3 is an open-source desktop diff and merge utility from KDE for developers and technical users. It compares two or three text files, compares and merges folders, and presents differences line by line and character by character. Its… Read the review →	Kompare is a free, open-source KDE desktop application for comparing and merging source files or folder contents. It is aimed at Linux users who want a graphical way to inspect differences across individual files or recursive folder trees.… Read the review →

Strengths and trade-offs

• KDiff3 — where it wins

  • Supports two- and three-file comparison and merging
  • Compares and merges folders across Windows, macOS, and Linux
  • Offers editable conflict resolution with Git integration

  Where it doesn't

  • Desktop-focused rather than browser-based
  • Integration options center on Git and KIO
  • Does not provide syntax highlighting

• Kompare — where it wins

  • Recursively compares folder contents and navigates changes across files
  • Creates, applies, and reverts selected differences or complete patches
  • Supports multiple diff formats plus command-line and standard-input workflows

  Where it doesn't

  • Runs on Linux rather than across multiple desktop platforms
  • The documented merge scope is primarily two-way
  • The published feature set does not include verified Git integration

• KDiff38.8/10 · Open source

  A free, open-source desktop utility for detailed two- and three-way file merging.

  Visit KDiff3Full verdict →
• Kompare8.5/10 · Free plan

  A free Linux diff tool with recursive folders, patch workflows, and two-way merging.

  Visit KDEFull verdict →