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Translate Toolkit

All‑in‑one conversion and QA toolkit for software localization

The Translate Toolkit offers command‑line utilities to convert, validate, and manage localization files across dozens of formats, streamlining workflows for developers and translators alike.

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Overview

Overview

The Translate Toolkit is a collection of command‑line programs and Python libraries designed for localization engineers, developers, and translation agencies. It simplifies the handling of a wide range of file formats— from Gettext PO and XLIFF to Java .properties, Qt .ts, OpenOffice GSI, and many more—by providing reliable converters and quality‑assurance tools.

Capabilities & Deployment

Key utilities include format converters (e.g., moz2po, oo2xliff, sub2po), the pofilter QA engine with over 40 checks, and pomerge for automatically merging corrected translations. The toolkit runs on Python 3.9+ and can be installed via pip, with optional extras for XML support, fuzzy matching, and additional parsers. Because it is pure command‑line, it integrates easily into CI/CD pipelines, scripts, or custom Python workflows, while extensive online documentation and --help output guide users through each command.

Extensibility

Developers can import the underlying classes to build custom localization pipelines or extend support for new formats. The GPL license encourages community contributions and ensures the toolkit remains freely available for a broad range of projects.

Highlights

Convert between 30+ localization formats to PO and XLIFF
Run 40+ quality‑assurance checks with pofilter
Merge corrected translations automatically via pomerge
Python library for custom scripts and integration

Pros

  • Broad format support reduces need for multiple tools
  • Mature command‑line interface works in CI pipelines
  • Extensive documentation and built‑in help flags
  • GPL license encourages community contributions

Considerations

  • Requires Python 3.9+; older environments unsupported
  • Optional speed‑up packages must be installed separately
  • Some converters (e.g., html2po) are still beta
  • No native graphical user interface

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When teams consider Translate Toolkit, these hosted platforms usually appear on the same shortlist.

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Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.

Fit guide

Great for

  • Localization engineers automating file conversion
  • Open‑source projects needing bulk format migration
  • Translation agencies performing QA on PO files
  • Developers integrating localization pipelines into CI/CD

Not ideal when

  • End‑users who prefer point‑and‑click translation tools
  • Projects requiring real‑time collaborative editing
  • Environments without Python or lacking required libraries
  • Teams needing commercial support guarantees

How teams use it

Mozilla string extraction

Convert .properties files to PO, edit translations, and generate updated language packs.

OpenOffice document localization

Transform GSI/SDF files to XLIFF for translators, then back to native format after translation.

Batch quality assurance

Run pofilter across hundreds of PO files to detect missing placeholders, inconsistent terminology, and formatting errors.

Subtitle translation workflow

Convert subtitle files to PO with sub2po, edit, then export back to original subtitle format.

Tech snapshot

Python99%
Shell1%
Makefile1%
HTML1%

Tags

i18ntranslatel10nlocalizationhacktoberfestpythongettext

Frequently asked questions

How do I install the toolkit with XML support?

Use `pip install translate-toolkit[XML]` which pulls in lxml and related dependencies.

What Python version is required?

The toolkit runs on Python 3.9 or newer.

Can I use the toolkit in a CI pipeline?

Yes, all commands are CLI‑based and can be scripted; combine with pofilter and pomerge for automated checks.

Is there a graphical interface?

The toolkit itself is command‑line only; GUI front‑ends like Virtaal can leverage its libraries.

Project at a glance

Active
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Watchers
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LicenseGPL-2.0
Repo age13 years old
Last commit2 days ago
Primary languagePython

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