Suggestions automatiques

Modifié dans la version 4.13: Prior to Weblate 4.13, the services were configured in the Configuration.

The support for several machine translation and translation memory services is built-in. Each service can be turned on by the administrator for whole site (under Automatic suggestions in Interface de gestion) or at the project settings:

Note

They come subject to their terms of use, so ensure you are allowed to use them how you want. Third-party services can receive source strings, translations, and related context from Weblate.

The services translate from the source language as configured at Configuration des composants, see Langue source.

Per-project automatic suggestion can also be configured via the API REST de Weblate.

Voir aussi

Suggestions automatiques

Priority of machine translation and translation memory services

Mémoire de traduction Weblate matches with 100% score take priority over machine translation services. If 100% match in translation memory is found, no machine translation is performed. If several 100% matches occur, the first one returned by the database is used.

Each machine translation service has a predefined maximum score it can produce. The use of installed translation services is ordered according to their maximum score. For each string with translation score lower than the service’s maximum, the service is asked to produce a translation. Translations with a score exceeding the current one are accepted.

Source strings for the machine translation

Ajouté dans la version 5.11.

The origin of source strings for all third-party services can be configured. This can be used to tweak the service to get the best results. Following choices are available:

Automatic selection

Chooses the best source language automatically.

This is the default behavior.

Component source language

Uses the component source language.

This was the behavior before the 5.11 release.

Secondary language defined in project or component

Use project Langue secondaire or component Langue secondaire.

Falls back to the automatic selection of the source language if the secondary language not configured.

LLM translation context

LLM-based automatic suggestion services receive additional context about each translated string, when available. This includes the string context or monolingual key, additional explanation, configured secondary-language translation, plural information, failing quality checks, and placeholder contents. The added metadata is used only to guide the generated suggestion; the returned translation still has to preserve the source placeholders and markup.

Alibaba

Ajouté dans la version 5.3.

Service ID:

alibaba

Maximal score:

80

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	ID de la clé d’accès
secret	Secret de la clé d’accès
region	ID de la région

Alibaba Translate is a neural machine translation service for translating text and it supports up to 214 language pairs.

Voir aussi

Alibaba Translate Documentation

Anthropic

Ajouté dans la version 5.16.

Service ID:

anthropic

Maximal score:

90

Advanced features:

• Glossaires dans la suggestion automatiques

• LLM translation context

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
base_url	URL de l’API Anthropic	URL de base de l’API Anthropic. Laissez ce champ vide pour utiliser l’URL par défaut.
model	Modèle anthropique	Choix disponibles : claude-sonnet-4-5 – Claude Sonnet 4.5 (Recommended) claude-haiku-4-5 – Claude Haiku 4.5 claude-opus-4-5 – Claude Opus 4.5 custom – Custom model
persona	Personnalité du traducteur	Décrivez la personnalité du traducteur pour améliorer l’exactitude de la traduction. Par exemple : « Vous êtes éleveur d’écureuils. »
style	Style de traducteur	Décrivez le style de la traduction. Par exemple : « Utiliser un language informel. »
key	Clé d’API
custom_model	Nom de modèle personnalisé	Requis uniquement pour « Modèle personnalisé »
max_tokens	Jetons maximum	Nombre maximal de jetons à générer dans la réponse.

Performs translation using Anthropic’s Claude models.

The Anthropic API provides access to the Claude family of models, which are known for their strong reasoning and language capabilities. You need an API key from Anthropic to use this service.

Use persona and style fields to further fine-tune translations. These will be used in a prompt for Claude and allow you to change the style of the translations.

The service automatically uses Glossaire, see Glossaires dans la suggestion automatiques.

Voir aussi

• Anthropic API documentation

• Anthropic Console

Apertium APy

Service ID:

apertium-apy

Maximal score:

88

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API

A libre software machine translation platform providing translations to a limited set of languages.

The recommended way to use Apertium is to run your own Apertium-APy server.

Voir aussi

• Apertium website

• Apertium APy documentation

Amazon Translate

Service ID:

aws

Maximal score:

88

Advanced features:

• Glossaires dans la suggestion automatiques

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	ID de la clé d’accès
secret	Clé secrète d’API
region	Nom de la région

Amazon Translate is a neural machine translation service for translating text to and from English across a breadth of supported languages. The service requires the TranslateFullAccess Managed Policy.

The service automatically uses Glossaire, see Glossaires dans la suggestion automatiques.

Voir aussi

• Amazon Translate Documentation

• AWS TranslateFullAccess Policy

Azure OpenAI

Ajouté dans la version 5.8.

Service ID:

azure-openai

Maximal score:

90

Advanced features:

• Glossaires dans la suggestion automatiques

• LLM translation context

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
base_url	URL de l’API
model	Modèle LLM
persona	Personnalité du traducteur	Décrivez la personnalité du traducteur pour améliorer l’exactitude de la traduction. Par exemple : « Vous êtes éleveur d’écureuils. »
style	Style de traducteur	Décrivez le style de la traduction. Par exemple : « Utiliser un language informel. »
key	Clé d’API
azure_endpoint	URL du point d’accès Azure OpenAI	URL du point d’accès de l’instance, par exemple : https://my-instance.openai.azure.com.
deployment	Déploiement de Azure OpenAI	Nom unique de déploiement du modèle.

Performs translation using OpenAI hosted on Azure.

Voir aussi

OpenAI

Baidu

Service ID:

baidu

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	ID client
secret	Secret client

Machine translation service provided by Baidu.

This service uses an API and you need to obtain an ID and API key from Baidu to use it.

Voir aussi

Baidu Translate API

CyrTranslit

Ajouté dans la version 5.7.

Service ID:

cyrtranslit

Maximal score:

100

Configuration:

source_language

Sélection de la langue source

Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component

Machine translation service using the Cyrtranslit library.

This service converts text between Cyrillic and Latin scripts for languages that have both scripts.

Voir aussi

Cyrtranslit repository

DeepL

Service ID:

deepl

Maximal score:

91

Advanced features:

• Placeables in automatic suggestion

• Glossaires dans la suggestion automatiques

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API
key	Clé d’API
formality	Formalité	Utilise la formalité spécifiée si la langue n’est pas spécifiée comme (in)formelle
context	Contexte de traduction	Décrire le contexte de la traduction afin d’améliorer la précision de la traduction.
next_gen	Utiliser un modèle de nouvelle génération	Préférer next-gen LLM par rapport au modèle de traduction automatique classique.

DeepL is paid service providing good machine translation for a few languages. You need to purchase DeepL API subscription or you can use legacy DeepL Pro (classic) plan.

API URL to use with the DeepL service. At the time of writing, there is the v1 API as well as a free and a paid version of the v2 API.

https://api.deepl.com/v2/ (default in Weblate)

Is meant for API usage on the paid plan, and the subscription is usage-based.

https://api-free.deepl.com/v2/

Is meant for API usage on the free plan, and the subscription is usage-based.

https://api.deepl.com/v1/

Is meant for CAT tools and is usable with a per-user subscription.

Note

Previously Weblate was classified as a CAT tool by DeepL, so it was supposed to use the v1 API, but now is supposed to use the v2 API. Therefore it defaults to v2, and you can change it to v1 in case you have an existing CAT subscription and want Weblate to use that.

Weblate supports DeepL formality, it will choose matching one based on the language (for example, there is de@formal and de@informal).

The translation context can optionally be specified to improve translations quality. Read more on that in DeepL translation context documentation.

The service automatically uses Glossaire, see Glossaires dans la suggestion automatiques.

Voir aussi

• DeepL translator

• DeepL pricing

• DeepL API documentation

Glosbe

Service ID:

glosbe

Maximal score:

90

Configuration:

source_language

Sélection de la langue source

Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component

Free dictionary and translation memory for almost every living language.

The API is gratis to use, but usage of the translations is subject to the license of the used data source. There is a limit of calls that may be done from one IP in a set period of time, to prevent abuse.

Voir aussi

Glosbe website

Google Cloud Translation Basic

Service ID:

google-translate

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	Clé d’API

Machine translation service provided by the Google Cloud services.

This service uses the Google Translation API v2, and you need to obtain an API key and turn on billing in the Google API console.

Voir aussi

Google translate documentation

Google Cloud Translation Advanced

Service ID:

google-translate-api-v3

Maximal score:

90

Advanced features:

• Placeables in automatic suggestion

• Glossaires dans la suggestion automatiques

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
credentials	Informations du compte pour le service Google Translate	Saisissez une clé JSON pour le compte de service.
project	Projet Google Translate	Saisissez l’identifiant numérique ou alphanumérique de votre projet Google Cloud.
location	Emplacement de Google Traduction	Choisissez une région Google Cloud Translation utilisée pour le projet Google Cloud ou la plus proche de chez vous.
bucket_name	Nom du Google Storage bucket	Saisir le nom du Google Storage bucket utilisé pour enregistrer les fichiers du glossaire.

Machine translation service provided by the Google Cloud services.

This service uses the Google Translation API v3 and you need credentials in JSON format to access it.

In order to use this service, you first need to go through the following steps:

1. Select or create a Cloud Platform project.

2. Enable billing for your project.

3. Enable the Cloud Translation.

4. Setup Authentication.

Optionally, you can configure the service to use Glossaire by setting up a Bucket:

1. Create a Google Cloud bucket.

2. Set bucket location to « us-central1 ».

3. Grant “Storage Admin” permission to the Service Account.

Voir aussi

• Google translate documentation

• Authenticate to Cloud services using client libraries

• Creating Google Translate project

• Google Cloud App Engine locations

Traducteur linguistique IBM Watson

Supprimé dans la version 5.13.1: This service was withdrawn by vendor as of 10 December 2024.

LibreTranslate

Ajouté dans la version 4.7.1.

Service ID:

libretranslate

Maximal score:

89

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API
key	Clé d’API

LibreTranslate is a free and open-source service for machine translations. The public instance requires an API key, but LibreTranslate can be self-hosted and there are several mirrors available to use the API for free.

https://libretranslate.com/ (official public instance)

Requires an API key to use outside of the website.

Voir aussi

• LibreTranslate website

• LibreTranslate repository

• LibreTranslate Docker container integration

LTEngine

Ajouté dans la version 5.17.1.

Service ID:

ltengine

Maximal score:

89

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API
key	Clé d’API

LTEngine provides a local LibreTranslate-compatible API backed by large language models. For many Weblate installations, native LLM services such as Ollama can be a better fit because Weblate can send translation context directly to the model. Use LTEngine when you specifically want its local translation engine or future LTEngine translation improvements.

Azure AI Translator

Service ID:

microsoft-translator

Maximal score:

90

Advanced features:

• Placeables in automatic suggestion

• Glossaires dans la suggestion automatiques

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	Clé d’API
base_url	URL racine de l’application	Choix disponibles : api.cognitive.microsofttranslator.com – Global (non-regional) api-apc.cognitive.microsofttranslator.com – Asia Pacific api-eur.cognitive.microsofttranslator.com – Europe api-nam.cognitive.microsofttranslator.com – North America api.translator.azure.cn – China api.cognitive.microsofttranslator.us – Azure US Government cloud
endpoint_url	URL du service d’authentification	La région ou le multi-services peuvent être définis en utilisant le champ Région ci-dessous. Choix disponibles : api.cognitive.microsoft.com – Global api.cognitive.azure.cn – China api.cognitive.microsoft.us – Azure US Government cloud
region	Région du service d’authentification
category	Catégorie	Spécifiez un ID de catégorie système personnalisé pour l’utiliser à la place de l’identifiant général.

Machine translation service provided by Microsoft in Azure portal as a one of Cognitive Services.

Weblate implements Translator API V3.

The service automatically uses Glossaire via dynamic dictionary, see Glossaires dans la suggestion automatiques.

Translator Text API V2

The key you use with Translator API V2 can be used with API 3.

Translator Text API V3

You need to register at Azure portal and use the key you obtain there. With new Azure keys, you also need to set region to locale of your service.

You can also specify a custom category to use custom translator.

Indication

For Azure China, please use your endpoint from the Azure Portal.

Voir aussi

• Cognitive Services - Text Translation API

• Microsoft Azure Portal

• Base URLs

• « Authenticating with a Multi-service resource »

• « Authenticating with an access token » section

ModernMT

Ajouté dans la version 4.2.

Service ID:

modernmt

Maximal score:

90

Advanced features:

• Glossaires dans la suggestion automatiques

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API
key	Clé d’API
context_vector	Vecteur de contexte	Liste de IDs:poids mémoire séparés par des virgules. Par exemple :1234:0.123,4567:0.456

The service automatically uses Glossaire, see Glossaires dans la suggestion automatiques.

Voir aussi

ModernMT API

MyMemory

Service ID:

mymemory

Maximal score:

100

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
email	Courriel de contact
username	Nom d’utilisateur
key	Clé d’API

Huge translation memory with machine translation.

Free, anonymous usage is currently limited to 100 requests/day, or to 1000 requests/day when you provide a contact e-mail address in email. You can also ask them for more.

Voir aussi

MyMemory website

Netease Sight

Service ID:

netease-sight

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	ID client
secret	Secret client

Service de traduction automatique fourni par NetEase.

This service uses an API, and you need to obtain key and secret from NetEase.

Voir aussi

NetEase Sight Translation Platform

Ollama

Ajouté dans la version 5.15.

Service ID:

ollama

Maximal score:

90

Advanced features:

• Glossaires dans la suggestion automatiques

• LLM translation context

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
base_url	URL de l’API	URL de base de l’API Ollama, localhost et port 11434 par défaut.
model	Modèle Ollama	Nom du modèle décrit dans le catalogue Ollama.
persona	Personnalité du traducteur	Décrivez la personnalité du traducteur pour améliorer l’exactitude de la traduction. Par exemple : « Vous êtes éleveur d’écureuils. »
style	Style de traducteur	Décrivez le style de la traduction. Par exemple : « Utiliser un language informel. »

Performs translation using Ollama models.

The Ollama API allows for the use of open source models for translations either locally installed or remotely accessed via the Ollama service. Note that before configuring your models, you should have Ollama installed and downloaded the models you wish to use.

Use persona and style fields to further fine-tune translations. These will be used in a prompt for Ollama and allow you to change the style of the translations.

The service automatically uses Glossaire, see Glossaires dans la suggestion automatiques.

Voir aussi

• Ollama models

OpenAI

Ajouté dans la version 5.3.

Service ID:

openai

Maximal score:

90

Advanced features:

• Glossaires dans la suggestion automatiques

• LLM translation context

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
base_url	URL de base de l’API OpenAI	URL de base de l’API OpenAI, si elle est différente de l’URL OpenAI par défaut
model	Modèle OpenAI	Choix disponibles : auto – Automatic selection gpt-5-nano – GPT-5-nano gpt-5-mini – GPT-5-mini gpt-5.2 – GPT-5.2 gpt-5.1 – GPT-5.1 gpt-5 – GPT-5 gpt-4.1-nano – GPT-4.1-nano gpt-4.1-mini – GPT-4.1-mini gpt-4.1 – GPT-4.1 gpt-4o-mini – GPT-4o mini gpt-4o – GPT-4o o3-mini – o3-mini o3 – o3 o1-mini – o1-mini o1 – o1 o1-pro – o1-pro custom – Custom model
persona	Personnalité du traducteur	Décrivez la personnalité du traducteur pour améliorer l’exactitude de la traduction. Par exemple : « Vous êtes éleveur d’écureuils. »
style	Style de traducteur	Décrivez le style de la traduction. Par exemple : « Utiliser un language informel. »
key	Clé d’API
custom_model	Nom de modèle personnalisé	Requis uniquement pour « Modèle personnalisé »

Réalise la traduction en utilisant OpenAI.

The OpenAI API is powered by a diverse set of models with different capabilities and price points. Automatic selection chooses the best model available, but you might want to choose a specific model that matches your needs.

Use persona and style fields to further fine-tune translations. These will be used in a prompt for OpenAI and allow you to change the style of the translations.

The service automatically uses Glossaire, see Glossaires dans la suggestion automatiques.

Modifié dans la version 5.7: Support for custom model and base URL was added.

Voir aussi

• OpenAI models

• OpenAI API keys

SAP Translation Hub

Service ID:

sap-translation-hub

Maximal score:

100

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API
key	Clé d’API
username	Nom d’utilisateur SAP
password	Mot de passe SAP
enable_mt	Activer la traduction automatisée
domain	Domaine de la traduction	L’ID d’un domaine de traduction, par exemple : BC. Si vous n’indiquez pas de domaine, la méthode recherche les traductions dans tous les domaines disponibles.

Service de traduction automatique fourni par SAP.

You need to have a SAP account (and the SAP Translation Hub enabled in the SAP Cloud Platform) to use this service.

You can also configure whether to also use machine translation services, in addition to the term database.

Note

To access the Sandbox API, you need to set url and key.

To access the productive API, you need to set url, username and password.

Voir aussi

• What is SAP Translation Hub

• SAP Translation Hub API

Systran

Service ID:

systran

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	Clé d’API

Machine translation service provided by Systran.

This service uses an API, and you need to obtain API key at <https://translate.systran.net/en/account>.

tmserver

Service ID:

tmserver

Maximal score:

100

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
url	URL de l’API

You can run your own translation memory server by using a tmserver protocol.

• The original tmserver was bundled with the translate-toolkit.

• amaGama server is an enhanced version of tmserver.

Note

There currently does not seem to be a maintained server for this.

Weblate

Service ID:

weblate

Maximal score:

100

Configuration:

This service has no configuration.

Weblate machine translation service can provide translations based on the exact matches of a string in the currently existing strings in a Translated, Approved, or Read-only states inside Weblate.

Mémoire de traduction Weblate

Service ID:

weblate-translation-memory

Maximal score:

100

Configuration:

This service has no configuration.

Use Mémoire de traduction as a machine translation service. Any string that has been translated before (or uploaded to the translation memory) can be translated in this way. This suggestion source works with fuzzy matching.

Note

Recreating Mémoire de traduction reduces capabilities of this TM source.

Yandex

Service ID:

yandex

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	Clé d’API

Service de traduction automatique fourni par Yandex.

This service uses a Translation API, and you need to obtain an API key from Yandex.

Voir aussi

• Yandex Translate API

• Powered by Yandex.Translate

Yandex v2

Ajouté dans la version 5.1.

Service ID:

yandex-v2

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	Clé d’API

Service de traduction automatique fourni par Yandex.

This service uses a Translation API, and you need to obtain an API key from Yandex Cloud.

Voir aussi

• Yandex Translate API v2

• Powered by Yandex.Cloud

Youdao Zhiyun

Service ID:

youdao-zhiyun

Maximal score:

90

Configuration:

source_language	Sélection de la langue source	Choix disponibles : auto – Automatic selection source – Component source language secondary – Secondary language defined in project or component
key	ID client
secret	Secret client

Machine translation service provided by Youdao.

This service uses an API, and you need to obtain an ID and an API key from Youdao.

Voir aussi

Youdao Zhiyun Natural Language Translation Service

Traduction automatique personnalisée

You can also implement your own machine translation services using a few lines of Python code. Place the code in a module Weblate can import (see Création d’un module Python or Customizing code) and add fully qualified class name to WEBLATE_MACHINERY.

"""
Machine translation example.

This example uses fictional http://example.com/ service to translate the
strings.
"""

from __future__ import annotations

from typing import TYPE_CHECKING

from weblate.machinery.base import MACHINERY_DEFAULT_THRESHOLD, MachineTranslation

if TYPE_CHECKING:
    from weblate.auth.models import User
    from weblate.machinery.base import DownloadTranslations
    from weblate.trans.models import Unit


class SampleTranslation(MachineTranslation):
    """Sample machine translation interface."""

    name = "Sample"

    def download_languages(self):
        """Return list of languages your machine translation supports."""
        response = self.request("get", "http://example.com/languages")
        return response.json()["languages"]

    def download_translations(
        self,
        source_language,
        target_language,
        text: str,
        unit: Unit | None,
        user: User | None,
        threshold: int = MACHINERY_DEFAULT_THRESHOLD,
    ) -> DownloadTranslations:
        """Return tuple with translations."""
        response = self.request(
            "get",
            "http://example.com/translate",
            params={
                "source_language": source_language,
                "target_language": target_language,
                "text": text,
            },
        )

        for translation in response.json()["translations"]:
            yield {
                "text": translation,
                "quality": 100,
                "service": self.name,
                "source": text,
            }

Voir aussi

• Custom quality checks, add-ons, automatic suggestions and auto-fixes

• Création d’un module Python

• Customizing code