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IJEMIN/GoogleTranslator.cs

Last active January 31, 2026 02:55
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Simple Unity Google Translator
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GoogleTranslator.cs
/* Credit */
// Inspired by grimmdev's code - https://gist.github.com/grimmdev/979877fcdc943267e44c
/* Dependency */
// Import SimpleJSON Scripts : http://wiki.unity3d.com/index.php/SimpleJSON
// You can use your own JSON Parser if you want.
/* Limitations */
// translate.googleapis.com is free, but it only allows about 100 requests per one hour.
// After that, you will receive 429 error response.
// You may consider using paid service like google translate v2(https://translation.googleapis.com/language/translate/v2) to remove the limitations.
// Check here if you want to use paid version : https://gist.github.com/IJEMIN/fdff6db1b1131b91033cbf204247816e
using System;
using System.Collections;
using SimpleJSON;
using UnityEngine;
using UnityEngine.Networking;
public class GoogleTranslator : MonoBehaviour
{
private void Awake()
{
DoExample();
}
// Remove this method after understanding how to use.
private void DoExample()
{
TranslateText("en","ko","I'm a real gangster.", (success, translatedText) =>
{
if (success)
{
Debug.Log(translatedText);
}
});
TranslateText("ko","en","나는 리얼 갱스터다.", (success, translatedText) =>
{
if (success)
{
Debug.Log(translatedText);
}
});
}
public void TranslateText(string sourceLanguage, string targetLanguage, string sourceText, Action<bool, string> callback)
{
StartCoroutine(TranslateTextRoutine(sourceLanguage, targetLanguage, sourceText, callback));
}
private static IEnumerator TranslateTextRoutine(string sourceLanguage, string targetLanguage, string sourceText, Action<bool, string> callback)
{
var url = $"https://translate.googleapis.com/translate_a/single?client=gtx&sl={sourceLanguage}&tl={targetLanguage}&dt=t&q={UnityWebRequest.EscapeURL(sourceText)}";
var webRequest = UnityWebRequest.Get(url);
yield return webRequest.SendWebRequest();
if (webRequest.isHttpError || webRequest.isNetworkError)
{
Debug.LogError(webRequest.error);
callback.Invoke(false, string.Empty);
yield break;
}
var parsedTexts = JSONNode.Parse(webRequest.downloadHandler.text);
var translatedText = parsedTexts[0][0][0];
callback.Invoke(true, translatedText);
}
}
@NicholasBarrett98
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NicholasBarrett98 commented Mar 27, 2023 •
edited
Loading

Thanks for sharing. I often use translators in my work. Google Translator is one of them. But I like https://www.translate.com/english-nepali better because it is always an accurate translation. They are ready to help with more than 90 languages and it's really true.

@baca130
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baca130 commented Nov 22, 2024

I fixed the script because it was only getting one sentence from the translation, I also changed SimpleJSON to Newtonsoft because that's what I use in the project.
`using System;
using System.Collections;
using Newtonsoft.Json.Linq;
using UnityEngine;
using UnityEngine.Networking;

public class GoogleTranslator : MonoBehaviour {

public void TranslateText(string sourceLanguage, string targetLanguage, string sourceText, Action<bool, string> callback) {
    StartCoroutine(TranslateTextRoutine(sourceLanguage, targetLanguage, sourceText, callback));
}

private static IEnumerator TranslateTextRoutine(string sourceLanguage, string targetLanguage, string sourceText, Action<bool, string> callback) {
    var url = $"https://translate.googleapis.com/translate_a/single?client=gtx&sl={sourceLanguage}&tl={targetLanguage}&dt=t&q={UnityWebRequest.EscapeURL(sourceText)}";

    using (var webRequest = UnityWebRequest.Get(url)) {
        yield return webRequest.SendWebRequest();

        if (webRequest.result == UnityWebRequest.Result.ProtocolError || webRequest.result == UnityWebRequest.Result.ConnectionError) {
            Debug.LogError(webRequest.error);
            callback.Invoke(false, string.Empty);
            yield break;
        }

        try {
            // Parsowanie JSON za pomocą Newtonsoft.Json
            var jsonResponse = JArray.Parse(webRequest.downloadHandler.text);

            // Zbieranie wszystkich fragmentów tłumaczenia
            string translatedText = string.Empty;
            foreach (var segment in jsonResponse[0]) {
                translatedText += segment[0]?.ToString();
            }

            callback.Invoke(true, translatedText);
        } catch (Exception ex) {
            Debug.LogError($"JSON Parsing Error: {ex.Message}");
            callback.Invoke(false, string.Empty);
        }
    }
}

}
`

@ewwink
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ewwink commented Jan 31, 2026

anyone know what is the characters limit for every single request?

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