---
title: "Introduction"
manual: "AI Localization"
version: "main"
permalink: "https://docs.typo3.org/permalink/nitsan/ns-t3al:introduction@main"
source: "Introduction/Index.rst"
rendered: "2026-10-20T11:46:30+00:00"
---

# Introduction {#introduction}

## What does it do? {#what-it-does}

**AI Localization** (`EXT:ns_t3al`) adds the backend module
**Admin Tools > AI Localization**. In this module you work with the
XLIFF language files of any installed extension:

-   Edit the English source and the translations of several languages side by
    side in one grid.
-   Fill empty translations with an AI or machine translation provider:
    **DeepL**, **OpenAI**, **Google Gemini** or **Google Translate**.
-   Review the suggestions and save them to the language files of the
    extension.
-   Upload the translations of TYPO3 system extensions to **Crowdin**.
-   Search a label text in the language files of all extensions.
-   Create new language files, import and export CSV files, and download all
    language files of an extension as a ZIP archive.
-   Follow every saved change in the translation logs, with a diff per label.

![Translate tab with ns_license, locallang_licensemodule.xlf and German selected](../Images/translate-grid.png)

## Features {#features}

-   **Spreadsheet-style label grid**

    One row per label key, one column per language. Empty translations and
    labels that are identical to the English source are highlighted.

-   **Translate only what is missing**

    **Translate** only fills **empty** translations. Translations that
    already exist are never overwritten.

-   **Review before saving**

    AI results are shown in the grid first. Nothing is written to disk until
    you click **Save**.

-   **Careful file writing**

    Only changed files are written, existing XLIFF formatting, notes and
    attributes are kept, and the TYPO3 label cache is flushed after a save so
    the new labels are used immediately.

-   **Access control**

    Administrators can edit every extension. Editors only see the extensions
    that are granted to their backend user group, see
    [Access rights](https://docs.typo3.org/permalink/nitsan/ns-t3al:access-rights@main).

-   **Concurrent-edit warning**

    When another backend user opened the same language file in the last
    10 minutes, the module shows a warning.

-   **Interactive guide**

    The **Guide** button opens an interactive walkthrough of the
    module.

## Supported translation providers {#supported-providers}

| Provider | Models / endpoint |
| --- | --- |
| DeepL | DeepL API Free or Pro (configurable URL) |
| OpenAI | gpt-5.6-terra, gpt-5.6-luna, gpt-5.6-sol, gpt-4o |
| Google Gemini | gemini-2.5-flash, gemini-2.5-flash-lite, gemini-3.6-flash |
| Google Translate | Cloud Translation API v2 (configurable URL) |

You only need an API key for the providers you want to use. See
[Configuration](https://docs.typo3.org/permalink/nitsan/ns-t3al:configuration@main).

## Supported TYPO3 versions {#supported-versions}

-   TYPO3 12.4 LTS
-   TYPO3 13.4 LTS
-   TYPO3 14.3 LTS

The extension works in Composer mode and in classic mode.

## System requirements {#system-requirements}

-   TYPO3 12.4 LTS, 13.4 LTS or 14.3 LTS
-   PHP 8.2 to 8.5
-   EXT:ns_license (`nitsan/ns-license`) `^14.5.4` (installed
    automatically, no license activation needed)
-   An API key for at least one translation provider

## Need support? {#need-support}

See [Support](https://docs.typo3.org/permalink/nitsan/ns-t3al:support@main) or [Troubleshooting](https://docs.typo3.org/permalink/nitsan/ns-t3al:troubleshooting@main).