Beyond Compare vs Difftastic

Beyond Compare compares folders, text files, images, and tables so users can inspect differences and merge changes. Folder comparisons can include recursive subfolders and filters based on modified time, size, filename case, or file content. Text tools provide syntax highlighting, inline editing, and options to ignore whitespace or comments; Pro adds two-way and three-way text merge. Other supported data includes CSV, tab-delimited files, HTML tables, Excel worksheets, binary files, images, and audio tag data. Folder Sync can reconcile data with disks, FTP servers, and zip files, and command-line scripts can run scheduled syncs. Pro also includes secure FTP connections, remote Subversion repositories, and cloud storage options such as WebDAV, Amazon S3, Dropbox, and OneDrive. It runs on Linux, macOS, and Windows. The license is a one-time purchase, with Standard Edition at $35, paid once per user and Pro Edition at $70, paid once per user. Free evaluation is available, but continued use requires a license.

Difftastic is a command-line diff tool that compares files by syntax rather than matching lines alone. It identifies a file’s language, parses its code, and compares syntax trees with tree-sitter. The manual lists support for more than 30 programming languages, and the site names HCL, HTML, JSON, and YAML among supported formats. It can identify expressions that remain unchanged through whitespace or line-wrapping changes and show the files’ actual line numbers. Unsupported formats and extremely large inputs instead receive a conventional line-based diff with word highlighting. Difftastic can be configured as Git’s external diff command and used with Git subcommands; the manual also links configuration instructions for Mercurial, Fossil, and Jujutsu. Folder comparison and syntax highlighting are supported, while merge scope is two-way. Prebuilt binaries are available for Linux, macOS, and Windows, and the manual lists package-manager installation options. Difftastic is free, open source, and MIT licensed. The manual warns that Git 2.43.1 and earlier can crash when an external diff is used if file permissions have changed.