Indonesian Translation Tips: Free AI Apps and Text-to-Speech Guide

Sept. 9, 2026

Indonesian Translation Tips: Free AI Apps and Text-to-Speech Guide


How should I handle Indonesian translation? Can I do it with free apps or software?
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Indonesian is a language that is currently attracting more and more attention.

Indonesia is a country with the world's fourth-largest population, and opportunities to translate Japanese or English into Indonesian are increasing rapidly.

  • I want to interact with Indonesian companies for business
  • I want to travel to Bali or Jakarta
  • I want to communicate with Indonesian friends

In such cases, we recommend translating English or Japanese into Indonesian using free apps or software.

In this article, we will explain in detail everything from free Indonesian translation apps and software to key points when translating Japanese or English into Indonesian.

We will also explain recommended free apps that can be used for learning Indonesian and communication, so please take a look!

[Free] AI Apps Recommended for Indonesian Learning and Video Production

Ondoku

If you want to further utilize Indonesian for communication or business, Ondoku is recommended!

Ondoku is a speech synthesis AI app that can read out Indonesian text using the latest AI.

Since it can synthesize Indonesian audio with native pronunciation, you can learn the correct pronunciation of Indonesian.

It is also perfect for YouTube video narration and improving services for inbound tourists from Indonesia.

Furthermore, Ondoku is free!

Since it is a web app used from a browser, it is easy to use with no installation required.

Of course, commercial use is also OK, so it can be used for promotional videos aimed at Indonesia (Credit is required for free commercial use. Click here for details on commercial use).

Why not try using the AI reading web app Ondoku for your Indonesian learning and video creation?

[Free] Types and How to Choose Indonesian Translation Apps/Software

【無料】インドネシア語翻訳アプリ・ソフトの種類&選び方

When translating Japanese or English text into Indonesian, the choice of app or software is important.

Since each has its own characteristics, it is important to choose one that fits your purpose.

AI Translation Apps are Recommended for Translating Japanese or English into Indonesian

First, the conclusion.

If you are translating Indonesian, AI translation apps are recommended.

With AI translation apps and software that can be used online, you can easily translate Japanese or English text into Indonesian.

AI translation apps that support Indonesian include:

  • DeepL
  • Google Translate
  • Papago

A key point is that online AI translation apps and software can be used in any environment, whether it's a computer, smartphone, or tablet.

There is no need to install apps or software, so you can start using them right away.

AI Translation Apps Allow You to Translate Indonesian for Free!

Another point is that AI translation apps (software) can be used for free.

Any online AI translation app or software can be used for free simply by opening it in a browser.

If you are translating Japanese or English into Indonesian for daily conversation or travel, free online translation services and apps are sufficient.

If security and personal information protection are required, such as for business translations, it is also recommended to use a paid plan that can improve security.

By using the paid plans of AI translation apps like DeepL, you can translate business-related text into Indonesian with peace of mind.

Translating with Generative AI Services [ChatGPT, Claude, Gemini] is Also Recommended

Additionally,

  • ChatGPT
  • Claude
  • Gemini

translating Indonesian using generative AI services like these is also recommended.

Please translate this sentence into natural Indonesian expressions.

By giving instructions like this, you can create Indonesian text with very natural, native expressions.

However, translating long texts can quickly exhaust the free tier of generative AI services.

When you want to translate for free, it is recommended to use them alongside AI translation services like DeepL.

[Free] 3 Recommended Indonesian Translation Apps/Software

Here are some recommended apps and software for translating Japanese or English text into Indonesian.

Since they are free to use, you can easily utilize them for Indonesian learning or video narration creation.

1. DeepL: Free Indonesian Translation with High-Performance AI

DeepL

DeepL is a web app that can translate Indonesian using the latest AI.

If you are translating Japanese or English text into Indonesian, we recommend trying DeepL first.

It is a free AI app that can be used without registration or login.

Its greatest feature is the ability to translate into natural Indonesian sentences.

The AI, which has learned expressions from native Indonesian speakers, translates into text with expressions that match the content.

However, DeepL sometimes over-paraphrases or omits content, so if you are unsure, it is recommended to back-translate and check using other services introduced in this article.

2. Google Translate: Best for Free Translation of Short Indonesian Texts

Google翻訳

Google Translate is also one of the most famous free translation services.

It has both a web version and an app version, allowing you to translate from Japanese or English into Indonesian for free.

Simply enter the text, and the Indonesian translation results are displayed immediately.

Compared to DeepL, the translation results tend to be more like literal translations.

However, literal translation can also be a merit.

It does not paraphrase or skip sentences like DeepL, so it is suitable when you want to translate while maintaining the exact content of the text.

It is also ideal for back-translating results from other free translation apps and software.

While it is not great for long-form translation, Google Translate is convenient when you want a free translation of short Indonesian sentences.

3. Papago: Recommended When You Want to Compare Indonesian Translation Content

Papago

Papago is a free translation web app provided by Naver in Korea.

Naver is the company that developed the messaging app LINE, and they actually provide various other convenient apps and software.

Papago is a free translation app often used when translating Korean, but it also supports other foreign languages, including Indonesian.

A situation where using Papago is recommended is when you want to use multiple translation apps and software to compare translation results.

By comparing results with Germany-based DeepL or US-based Google Translate, you can check for subtle Indonesian nuances or the presence of mistranslations.

It is recommended as a third translation service for achieving more natural Indonesian translations.

Recommended Ways to Utilize Free Indonesian Translation Apps/Software

インドネシア語無料翻訳アプリ・ソフトの活用シーン

Apps and software that can translate Indonesian for free can be utilized in various situations.

Here are some specific usage scenarios.

1. Indonesian Language Learning and Study

A great way to use free translation apps and software that support Indonesian is for language learning.

Compared to English, French, Spanish, Chinese, or Korean, there are fewer study materials for Indonesian.

With commercially available textbooks alone, you might not find the specific example sentences you want.

In such cases, by translating text with free Indonesian translation apps and software, you can easily create language learning materials.

Furthermore, it is highly recommended to use AI reading apps to create listening and speaking materials.

The AI reading web app Ondoku supports free reading in Indonesian.

By simply pasting the translated Indonesian text, you can easily create audio materials with native pronunciation.

The method of "Shadowing," which is recommended for language learning, is explained in this article, so please take a look at it as well.

【完全ガイド】英語シャドーイングのやり方とは?無料でできる教材の作り方も解説!

[Complete Guide] What is English Shadowing? Explaining How to Create Free Study Materials!

Efficiently improve your English skills with shadowing! Explaining a learning method for beginners that improves listening, pronunciation, and speaking simultaneously. Also introducing how to create materials with free AI audio.

2. Producing YouTube Video Narration in Indonesian

It is also recommended to translate text into Indonesian for free to create YouTube video narrations.

The population of Indonesia is a staggering 280 million.

By adding Indonesian narration to YouTube videos, it is possible to rapidly increase view counts and subscriber numbers.

When creating YouTube video narration audio, using the AI reading web app Ondoku is also recommended.

From individual YouTubers to those creating promotional or branding videos for companies, you can easily create Indonesian videos by utilizing the latest AI services.

【2026年最新】AI音声合成で動画ナレーション制作!YouTube収益化におすすめの無料サービスと使い方

[Latest for 2026] Producing Video Narration with AI Speech Synthesis! Recommended Free Services and Usage for YouTube Monetization

Explaining how to utilize text-to-speech AI services for YouTube video narration production. Introducing the features and usage of tools that can be used for free, such as Ondoku, and points to note in video editing.

3. Guiding Inbound Tourists from Indonesia

Free translation services are also recommended for improving services for inbound tourists from Indonesia.

If you translate text into Indonesian with the latest AI, you can easily create signage for shops and facilities.

Also, by synthesizing audio with the AI reading service Ondoku, you can also play announcements in Indonesian.

【観光施設・店舗・交通】インバウンド向け案内放送音声の作り方!効果的なおすすめ多言語ガイドの方法とは?

[Tourism Facilities, Shops, Transport] How to Create Audio for Inbound Announcements! What are Effective Multilingual Guide Methods?

Cost reduction for inbound support! Easily create multilingual announcement audio for free with AI voice. Ondoku supports 81 languages and regions, making it ideal for tourism facilities, shops, and transportation. Streamline guidance tasks and improve customer satisfaction! Click here for details.

4. Utilizing AI Translation Services During Travel in Indonesia

Of course, free translation services can also be used during travel in Indonesia!

Since you can easily translate into Indonesian on your smartphone, you can comfortably communicate at shops, hotels, and on public transport.

In this way, there are many ways to utilize free translation apps and software that support Indonesian.

Why not translate Indonesian with the latest AI services and use it for your hobbies, work, or travel?

Ondoku: The Latest AI App Recommended for Indonesian Learning and Video Production

Ondoku

If you want to further utilize Indonesian, the AI app Ondoku is recommended!

Ondoku is an AI reading web app perfect for Indonesian learning, studying, and YouTube video production.

With the latest AI speech synthesis engine, you can synthesize native pronunciation audio from translated Indonesian text.

Its greatest feature is that it can be used for free!

Ondoku allows for up to 5,000 characters of free AI reading.

You can synthesize a lot of audio for language learning materials and video narrations for free.

Since commercial use is OK, it is safe to use in companies and shops (Credit notation is required for free commercial use. Click here for details).

For Indonesian learning/studying and YouTube video production, we recommend utilizing AI translation apps and Ondoku for free.

Why not use Ondoku to integrate Indonesian into your life more closely?

Explaining the Flow of Free Indonesian Translation & Audio Synthesis

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I want to create Indonesian language learning materials and YouTube video narrations for free!

From here, we will briefly explain the flow of creating Indonesian learning materials and YouTube video narrations using a free AI translation app/software and the AI reading app Ondoku!

1. Translate Text into Indonesian with a Free AI Translation App

First, translate your text into Indonesian using a free AI translation app or software.

This time, we will explain using DeepL, which can be used for free, as an example.

Open the DeepL website.

Enter the original sentence in the text box.

DeepLのウェブサイト

Then, the Indonesian translation result is displayed immediately.

The important part starts here.

Once you have copied the translation result, back-translate it to check for any errors in the content.

You can use DeepL for this as well, but for a more rigorous check, it is recommended to use a different free translation app or software.

This time, we confirmed it using Google Translate.

逆翻訳した例

If there are no errors in the translation result, it's OK.

Now, you have successfully translated the text for audio synthesis in the AI reading app Ondoku.

Using Generative AI Services is Also Recommended

When you want to translate into Indonesian text that is closer to native expressions, using generative AI services like ChatGPT, Claude, or Gemini is also recommended.

Please translate this text into Indonesian text with native expressions.

By giving instructions like this, it will translate into expressions used by native Indonesian speakers.

However, note that when trying to translate long texts like video narrations, you will often reach the free tier limit, so caution is required.

2. Create Indonesian Audio with the AI Reading App Ondoku

Next, have Ondoku read the translated text.

Ondoku is a web app that can be used from a browser for free.

It is easy to use simply by opening the page from here.

Ondoku

Once you open the Ondoku homepage, first paste the Indonesian text into the text box.

インドネシア語テキストをテキストボックスに貼り付け

Select "Indonesia (Indonesia)" from the Language settings.

言語を選択

Choose the Voice type.

音声の種類を選択

For Indonesian reading in Ondoku, you can choose from 6 types of voices.

You can listen to Indonesian audio samples in this article. Please take a look!

インドネシア語・ジャワ語の学習・発音確認に!音声サンプル試聴&無料文章読み上げ「Ondoku」の使い方

For Learning and Pronunciation Checks of Indonesian and Javanese! Audio Sample Listening & How to Use the Free Text-to-Speech "Ondoku"

You can listen to (test) Indonesian and Javanese audio samples available on Ondoku. Pronunciation checks are essential for smooth communication with Indonesian and Javanese speakers. In such cases, Ondoku is recommended! Text-to-speech service (Text t...

Ondoku allows you to change the voice pitch and reading speed, but when using it for the first time, both are fine at their default settings.

Now the preparation is complete.

準備完了

Press "Read" to start the audio synthesis.

Audio synthesis with the latest AI is completed quickly.

The screen switches and an audio player is displayed.

音声合成完了

The synthesized result will play automatically, so check the content and if there are no problems, press "Download" to save the Indonesian audio file.

The audio file is saved in MP3 format.

音声ファイルを保存

It can also be saved in WAV format by opening the history page.

3. Utilize Indonesian AI Audio for Learning and YouTube Video Production

Finally, just utilize the created Indonesian audio for language learning or YouTube video production.

What is recommended for language learning is using Ondoku's reading speed adjustment function.

読み上げ速度の変更

When you feel the generated Indonesian audio is too fast, you can lower the reading speed to proceed with listening and shadowing practice bit by bit.

Ondoku can lower the playback speed down to 0.3x, making it perfect for Indonesian learning/study.

When making YouTube videos, it is recommended to add captions (subtitles) in addition to the Indonesian narration.

While you can add captions using the same text used for reading the audio, editing captions yourself is very time-consuming.

What is recommended is creating an SRT file with the latest AI to automatically insert video subtitles.

By loading the created Indonesian audio into the AI transcription service Mojiokoshi-san, you can automatically create an Indonesian subtitle file.

文字起こしさん

Then, just download the SRT file and load it into video editing software like Adobe Premiere or DaVinci Resolve.

In this way, by using free AI translation apps/software and the AI reading app Ondoku, you can proceed with Indonesian language learning and video production more conveniently.

Why not first experience the AI reading web app Ondoku for free?

What are the Points to Watch Out for When Translating Japanese and Indonesian?

日本語とインドネシア語を翻訳するときに注意したいポイントとは?

From here, we will briefly explain the points you should be careful about when translating Japanese text into Indonesian or Indonesian text into Japanese.

Check for Subject Omissions in Japanese Sentences

The latest AI translation apps and software can translate Indonesian with very high precision.

However, by paying a little attention to the original text, you can proceed with translation even more smoothly.

The first thing to watch out for is the subject of the sentence.

Japanese is a language that often omits subjects like "I," "he," or "we."

For example, in the sentence "Ashita, ikimasu" (Going tomorrow), the subject "I am" is omitted.

When translating into Indonesian, you can prevent mistranslations by adding the subject like "I am" to the original sentence before translating.

Be Careful with the Translation of Indonesian Pronouns

Also, Indonesian pronouns have singular and plural forms.

For example:

  • Second-person singular: Anda, kamu, etc.
  • Second-person plural: kalian, Anda sekalian, etc.

In particular, in translations of business-related text, even if the recipient is one person, it is easily translated into plural forms, so caution is required.

Keeping Sentences Simple is also a Key Point

To improve translation accuracy, keeping the source text simple is also a key point.

Long and complex sentences make it difficult for translation tools to translate accurately.

By breaking one sentence into shorter segments and making the relationship between subject and predicate clear, the translation accuracy will improve.

Translation via English is also Recommended

Actually, when translating Japanese into Indonesian, there are situations where translating via English as an intermediate step is effective.

Many loanwords from English are used in Indonesian.

For example:

  • komputer (computer)
  • internet (internet)
  • bisnis (business)

Therefore, translation between English and Indonesian can often be done relatively smoothly.

While the latest AI translation apps are high-performance, the training data for directly translating between Japanese and Indonesian is smaller compared to "Japanese and English" or "English and Indonesian."

Therefore, depending on the case, going through English can result in a more natural translation.

Especially for technical or business documents, it is recommended to compare direct translation from Japanese to Indonesian with a two-step translation of Japanese → English → Indonesian.

In this way, when translating between Japanese and Indonesian, by being aware of the differences in expressions between each language and slightly tweaking the source text, you will be able to translate with higher precision.

Why not keep these translation points in mind and use free AI apps even more conveniently?

Why Not Conveniently Translate Indonesian with Free AI Apps and Software?

As described, by utilizing free apps and software, anyone can easily translate Indonesian.

Furthermore, if you use the AI reading app Ondoku, you can freely create language learning materials and YouTube video narration audio.

With the latest AI, both Indonesian translation and Indonesian audio synthesis are OK for free.

Why not use AI apps to utilize Indonesian more conveniently for your hobbies, work, or travel?

■ AI voice synthesis software "Ondoku"

"Ondoku" is an online text-to-speech tool that can be used with no initial costs.

  • Supports 81 languages and regions, including Japanese, English, Chinese, Korean, Spanish, French, and German
  • Available from both PC and smartphone
  • Suitable for business, education, entertainment, etc.
  • No installation required, can be used immediately from your browser
  • Supports reading from images

To use it, simply enter text or upload a file on the site. A natural-sounding audio file will be generated within seconds. You can use voice synthesis up to 5,000 characters for free, so please give it a try.

Text-to-speech software "Ondoku" can read out 5000 characters every month with AI voice for free. You can easily download MP3s and commercial use is also possible. If you sign up for free, you can convert up to 5,000 characters per month for free from text to speech. Try Ondoku now.
HP: ondoku3.com
Email: ondoku3.com@gmail.com
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