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TMXEditor is a cross-platform desktop application designed for editing TMX (Translation Memory eXchange) files on macOS, Linux or Microsoft Windows.

TMX is a standard XML-based format used for exchanging Translation Memories used by CAT (Computer Assisted Translation) tools.

Multilingual by design, TMXEditor allows you to work with any language combination, without restricting you to just a source and target pair at a time.

Source Code is Open

The source code for TMXEditor is available at and is free for personal use. Anyone can download the source code, compile, modify and use it at no cost in compliance with the accompanying license terms.

Converting Excel to TMX

TMXEditor Features

With TMXEditor you can:

  • Edit segments of your TMX file to correct errors.
  • Merge & split TMX files.
  • Export TMX file as TAB-delimited.
  • Remove duplicates.
  • Trim initial and trailing spaces.
  • Consolidate translation units when the TMX file has three or more languages.
  • Validate TMX files, even very large ones with millions of translation units.
  • Clean invalid XML characters in a TMX file.
  • Convert CSV or TAB delimited files to TMX format.
TMXEditor on Windows
TMXEditor running on Windows