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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.

TMXEditor is available in two modes:

  • Personal Use of Source Code
  • Yearly Subscriptions

Personal Use of Source Code

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


The version of TMXEditor included in our installers can be used at no cost for 7 days requesting a free Evaluation Key.

Personal Subscription Keys are available in our Online Store. Subscription Keys cannot be shared or transferred to different machines.

Subscription version includes unlimited email support at

Differences Summary

  Source Code Subscription Based
Ready to use installers No Yes
Notarized macOS launcher No Yes
Signed launcher and installer for Windows No Yes
Associate app with .tmx extension on Windows and macOS No Yes
Restricted features None None
Technical support

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.
Convert Excel or CSV to TMX

Converting Excel to TMX

TMXEditor on Windows
TMXEditor running on Windows

Download TMXEditor

Download TMXEditor and test it for free during 7 days. All functionality is enabled during the evaluation period.

Fluenta Installer
Select the appropriate installer from the drop-down list and click on Download button.

Related Links

Support Group

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Support Group