loper

Loper · Subtitles, captions & localization

Open .tmx files on your Mac.

.tmx

Translation memories exchanged between CAT tools: source and target segments side by side.

Loper is a free, minimal editor for macOS that opens Translation memory (.tmx) instantly and colors every part of the file, so you find the value you need at a glance and can fix it right there. No IDE, no project to load, no gray wall of text.

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NightShift_EN-DE.tmx opened in Loper: Translation memory (.tmx) with color-coded XML
Show the file as text
<?xml version="1.0" encoding="UTF-8"?><tmx version="1.4">  <header srclang="en-US" datatype="plaintext" segtype="sentence"          creationtool="Loper" creationtoolversion="0.1.9" adminlang="en-US"/>  <body>    <tu>      <tuv xml:lang="en-US"><seg>You said midnight.</seg></tuv>      <tuv xml:lang="de-DE"><seg>Du hast Mitternacht gesagt.</seg></tuv>    </tu>  </body></tmx>

How to open .tmx files

  1. Download Loper (free, Apple silicon, signed and notarized) and move it to Applications.
  2. Double-click your .tmx file, drag it onto the Loper window, or right-click it and choose Open With › Loper.
  3. Want every .tmx file to open in Loper? Choose Loper › Make Loper the Default Editor….

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