Free Software to Merge Two or More Text Input Files

kdiff3 is a software package intended to merge two or more files or directories. Not only is this useful for programmers and developers, but a line-by-line differential analysis provides an extra sense of functionality when comparing different sources. These disparities can then be printed out through the use of a highly intuitive Graphical User Interface (GUI). KTE4, Unix and Microsoft operating systems are currently supported although there is a newer version intended for Mac users.

  • Pros

    • This open-source software is free to download and install
    • Cross-platform compatibility enhances the flexibility of kdiff3
  • Cons

    • The last update apparently took place in 2014
    • This system is intended to be used by those with prior developmental experience
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App specs

Also available in other platforms

Program available in other languages


Icon of program: kdiff3

kdiff3 for PC

  • Free
  • 3.7
    3
  • 5.3K
  • V1.12.3

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Laws concerning the use of this software vary from country to country. We do not encourage or condone the use of this program if it is in violation of these laws.
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Is kdiff3 safe?

100/100

Score result: Clean

This file passed a comprehensive security scan using VirusTotal technology. It is safe to download.

  • Virus free
  • Spyware free
  • Malware free
  • Verified by Security Partners

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Scan Info

Last scan
Tuesday, November 4, 2025
Scan provider
VirusTotal · Full report

File Integrity

File
1.12.3.exe
SHA256
3720120458891b8ce0df8bf33460e9e33478645774e7f05174174b4f2e2cb943
SHA1
51b103114c4ba39ce95b23d69f00e654cc23c59d

Softonic security commitment

kdiff3 has been thoroughly scanned by our advanced security systems and verified by industry-leading partners. This file comes from the official developer and has passed all our security checks, showing no signs of viruses, malware, or spyware. For more information, visit our Security and Trust Center