GNU Diff Utilities Alternatives
Apps similar to GNU Diff Utilities include WinMerge, which is free and open source. Other options are Meld, Beyond Compare, KDiff3 and SyncToy. There's no shortage of Diff Tools like GNU Diff Utilities, with more than 50 alternatives for Windows, Mac, Linux, the web and self-hosting.
Alternatives list
Free AI-powered text and file comparison tool. Compare PDF, Word, Excel, JSON, YAML, CSV, XML and Markdown online. End-to-end encryption, real-time collaboration, AI explanations. No installation needed.
Platforms
- Online
- Software as a Service (SaaS)



UwDiff compares two files or two folders and shows what changed. It comes as a GUI (UwDiff) and a CLI (uvd) that share one comparison engine, on Windows (x64, ARM64), macOS (Apple Silicon, Intel) and Linux (x86_64, aarch64). No separate .NET install is needed.
Platforms
- Mac
- Windows
- Linux


+3
DiffALL compares any two media files and pinpoints every difference. Upload expected and actual — video, audio, images, subtitles (SRT/VTT), or text/JSON — and get a similarity score in seconds.
Platforms
- Online



Diff Checker compares two snippets of text, source code, JSON or full files and highlights every change side-by-side. Everything runs locally inside the browser extension—no data ever leaves the user’s machine—so it suits security-sensitive workflows.
Platforms
- Google Chrome
Cyprus
EU


+1
GumTree is a complete framework to deal with source code as trees and computing differences between them.
Platforms
- Mac
- Windows
- Linux
- Java
Pretty Diff is a language aware code comparison tool, beautifier, minifier, and parser for a variety of web oriented languages.
Platforms
- Online
- Typescript
- npm
- JavaScript
- Self-Hosted
United States

dwdiff is a diff program that operates at the word level instead of the line level. It is different from wdiff in that it allows the user to specify what should be considered whitespace, and in that it takes an optional list of characters that should be considered delimiters.
Online Text compare is a browser based data compare tool that highlights the differences between two versions.
Platforms
- Online





























