loper

Loper · Subtitles, captions & localization

Open .xliff files on your Mac.

.xliff .xlf

Translation files with source, target and state, easy to scan.

Loper is a free, minimal editor for macOS that opens XLIFF translations 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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app.de.xliff opened in Loper: XLIFF translations with color-coded XML
Show the file as text
<xliff version="1.2">  <file source-language="en" target-language="de" datatype="plaintext">    <body>      <trans-unit id="save">        <source>Save</source>        <target state="translated">Speichern</target>      </trans-unit>    </body>  </file></xliff>

How to open .xliff files

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

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