Meld - Visual Diff And Merge Tool Targeted At Developers

Monday, March 28, 2016

Meld is a visual diff and merge tool targeted at developers. Meld helps you compare files, directories, and version controlled projects. It provides two- and three-way comparison of both files and directories, and has support for many popular version control systems.

Meld helps you review code changes and understand patches. It might even help you to figure out what is going on in that merge you keep avoiding.


File comparison

  • Edit files in-place, and your comparison updates on-the-fly
  • Perform two- and three-way diffs and merges
  • Easily navigate between differences and conflicts
  • Visualise global and local differences with insertions, changes and conflicts marked
  • Use the built-in regex text filtering to ignore uninteresting differences
  • Syntax highlighting

Directory comparison

  • Compare two or three directories file-by-file, showing new, missing, and altered files
  • Directly open file comparisons of any conflicting or differing files
  • Filter out files or directories to avoid seeing spurious differences
  • Simple file management is also available

Version control

  • Meld supports many version control systems, including Git, Mercurial, Bazaar and SVN
  • Launch file comparisons to check what changes were made, before you commit
  • View file versioning statuses
  • Simple version control actions are also available (i.e., commit/update/add/remove/delete files)

Merge mode (in development)

  • Automatically merge two files using a common ancestor
  • Mark and display the base version of all conflicting changes in the middle pane
  • Visualise and merge independent modifications of the same file
  • Lock down read-only merge bases to avoid mistakes
  • Command line interface for easy integration with existing tools, including git mergetool


  • Python 2.7 (Python 3 not yet supported)
  • GTK+ 3.12 (3.14 in development)
  • GLib 2.36
  • PyGObject 3.8 (3.14 in development)
  • GtkSourceView 3.10 (3.14 in development)

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