[Free] 4 Recommended Sites and Apps for Learning Indonesian! A Thorough Explanation of How to Choose and Use Them Effectively

Nov. 27, 2025

[Free] 4 Recommended Sites and Apps for Learning Indonesian! A Thorough Explanation of How to Choose and Use Them Effectively
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I want to learn Indonesian for free! What websites and apps are recommended?

Indonesian is currently attracting a lot of attention.

Indonesia is the world's fourth most populous country and is experiencing rapid economic growth.

With many attractive tourist destinations such as Bali and Jakarta, the number of people wanting to learn Indonesian for free is increasing.

  • I want to travel to Bali or Jakarta.
  • I want to communicate with Indonesian friends
  • I want to do business with Indonesian companies.

In such cases, we recommend learning Indonesian using free websites and apps .

In this article, we will introduce in detail recommended Indonesian language learning sites and apps , as well as key points for learning !

If you want to start learning Indonesian, why not use this article to find the learning method that's right for you?

[Free] Recommended free AI site for learning Indonesian!

Ondoku

If you want to learn Indonesian for free, we recommend "Ondoku" !

"Ondoku" is an AI app that uses the latest AI to read out Indonesian text.

You can easily use it right now from the website , regardless of your environment, whether you're using an iPhone, Android smartphone, or PC .

Its greatest feature is that it can create native-sounding voices using a high-performance AI speech synthesis engine .

You can create study materials tailored to your purpose, such as travel, business, or language proficiency.

What's more, "Ondoku" is free!

It can read out 5,000 characters for free, so you can create lots of Indonesian language learning materials.

Why not try using "Ondoku" for free to learn Indonesian?

We recommend using free websites and apps to learn Indonesian!

We recommend using free websites and apps to learn Indonesian!

If you want to learn Indonesian, it is recommended that you use free websites and apps.

This free site uses the latest AI to make it easy to create listening and speaking materials.

You can also study in your spare time using a smartphone app that specializes in Indonesian.

Create free Indonesian listening and speaking materials using an AI app

If you want to learn Indonesian, we recommend using free websites and apps !

One thing I would definitely recommend is a voice synthesis AI app that can be easily used from a website.

By using an AI app that reads Indonesian text aloud, you can easily create learning materials tailored to your learning purposes, such as travel or business.

You can create Indonesian language learning materials with native pronunciation , making it perfect for practicing listening, speaking, and shadowing.

If you want to create Indonesian language learning materials, we recommend the AI app "Ondoku," which is available for free from the website.

You can download the files to your iPhone or Android smartphone and study Indonesian freely and at any time .

Why not start learning Indonesian using the latest AI?

You can learn Indonesian anytime with our free smartphone app!

For learning Indonesian, we also recommend learning apps that can be used for free on iPhones and Android smartphones .

The biggest advantage of using free apps for iPhone (iOS) or Android smartphones is that you can learn Indonesian whenever and wherever you want .

You can study Indonesian during your commute, your lunch break, or even just a few minutes before bed.

Another benefit of using a free app on your iPhone (iOS) or Android smartphone is that you can learn Indonesian at your own pace .

Unlike language classes, you don't have to attend at set times , so even busy people can continue learning Indonesian.

Free Indonesian language learning sites and apps cater to a variety of learning styles.

There are a variety of free apps available, including apps that specialize in vocabulary memorization, apps with extensive grammar explanations, and apps that allow you to practice conversation, making learning Indonesian more enjoyable.

If you want to continue learning Indonesian smoothly, we recommend combining a free AI site with a free smartphone app.

You can smoothly improve your Indonesian by using a free AI-powered text-to-speech website for listening and speaking, and a free smartphone app for learning vocabulary and grammar.

As such, it is recommended to use free websites and apps to learn Indonesian.

Why not try learning Indonesian for free on your smartphone or PC?

[Free] 4 Recommended Sites and Apps for Learning Indonesian

I'd like to know some recommended websites and apps for learning Indonesian!
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From here, we will introduce four recommended free websites and apps for learning Indonesian.

Each site and app has its own unique features, so find the site or app that best suits your learning goals.

  1. Ondoku
  2. BINTANGO
  3. Nemo Indonesian
  4. Osaka University Indonesian self-study content

1. Ondoku | A recommended free AI web app for learning pronunciation and listening

Ondoku

If you're learning Indonesian, we recommend the AI reading service "Ondoku" !

"Ondoku" is a free AI app that uses the latest AI technology to convert Indonesian text into native-speaking audio.

The greatest feature of "Ondoku" is that it allows you to freely create Indonesian listening materials .

Any text can be converted into audio, including sentences from Indonesian textbooks and reference books, as well as Indonesian phrases for everyday conversation and business.

If you can't find the material you want to study in commercially available materials, you can use Ondoku to create your own Indonesian language learning materials .

It can be used not only for learning Indonesian, but also for creating Indonesian narration for YouTube videos.

"Ondoku" is a web application that can be used from a browser, so it is easy to use without the need for installation .

All you have to do is open the site from any device, whether it's an iPhone (iOS), Android smartphone, or PC .

The audio can be adjusted, making it perfect for creating Indonesian language learning materials.

Ondoku 's Indonesian reading service offers six different voices to choose from.

Text can be read aloud in a voice that suits your preference and purpose, such as a female voice or a male voice .

Another plus is that you can adjust the reading speed .

You can slow down the audio speed up to 0.3x, so you can start learning at a slower speed and then increase the speed as you get used to it.

You can listen to the Indonesian audio of "Ondoku" in this article.

Please take a look!

Create free Indonesian language learning materials with "Ondoku"!

What's more, "Ondoku" is free!

You can have up to 5,000 Indonesian characters read aloud for free, so you can easily create learning materials right now.

If you want to learn Indonesian pronunciation and listening skills, we recommend "Ondoku" !

Commercial use is also permitted, so it can be used to create business videos and audio guides for Indonesia.

Why not try using "Ondoku" for free to learn Indonesian?

2. BINTANGO | A free app for Japanese people specializing in learning Indonesian vocabulary

BINTANGO

"BINTANGO" is recommended for those who want to learn Indonesian vocabulary.

The app is compatible with iPhone (iOS) and Android smartphones and is free to use.

The biggest feature of BINTANGO is that it is an Indonesian language learning app made by Japanese people for Japanese people.

This app is focused on learning Indonesian vocabulary , covering a wide range of words from basic to technical terms and slang.

In addition to vocabulary learning, the app also has an Indonesian translation function and a question board for Indonesian language learners.

The Indonesian translation feature displays particularly important words so you can check whether you remember them.

The app screen is also well-designed, making it easy to study Indonesian.

If you're learning Indonesian, this is a recommended free app that you should definitely install on your iPhone or Android smartphone.

3. Nemo Indonesian | Free app for memorizing phrases and words

Nemo Indonesian

"Nemo Indonesian" is an app that helps you learn Indonesian phrases and words.

It is compatible with iPhone (iOS) and Android smartphones , and the basic functions are free to use.

You can study basic phrases and words by viewing them like a vocabulary book.

On the screen that displays phrases and words, you can also play audio.

However, the free version only covers a limited range of topics, and you will need to purchase the paid version to learn more advanced phrases and vocabulary.

This is a free app that you should use when you first start learning Indonesian.

4. Osaka University Indonesian Self-Study Content | Free Learning Site

Osaka University Indonesian self-study content

For those who want to learn Indonesian grammar on a website, we recommend the "Indonesian Self-Study Content" provided by Osaka University .

This is an official Indonesian language learning site provided by the university and is free to use.

The curriculum is systematically structured to cover Indonesian grammar, vocabulary, and conversation, allowing students to learn Indonesian in stages from the basics .

Just like a language textbook, the learning materials are prepared for each situation, such as "taking the bus" and "going shopping," so even those who have just started learning Indonesian can progress smoothly.

Of course, it can be used not only on PCs, but also on iPhones and Android smartphones.

We also recommend the Indonesian language learning site from Tokyo University of Foreign Studies.

Another well-known Indonesian language learning site offered by the university is the Tokyo University of Foreign Studies Language Module .

It offers more detailed content on Indonesian pronunciation, grammar, and more, so it is recommended to use it in conjunction with the Osaka University website.

Why not try learning Indonesian for free by using our recommended sites and apps?

As you can see, by taking advantage of these recommended free websites and apps, anyone can easily start learning Indonesian.

Indonesian is a language written in the alphabet and the pronunciation is easy to understand, so you can learn it yourself using free websites and apps.

Using the AI reading service "Ondoku," you can easily convert words and sentences that are not included in apps or websites into audio .

Why not try learning Indonesian for free on your iPhone, Android smartphone, or PC?

[Free] Explaining the process of creating Indonesian language teaching materials using the AI reading app "Ondoku"

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I want to use a free app to learn Indonesian!

From here, we will briefly introduce the process of learning Indonesian using the AI reading app ``Ondoku'' !

1. Prepare Indonesian language learning textbooks

Indonesian language learning textbooks available

First, prepare the text you want to use to learn Indonesian .

Any text is OK, such as Indonesian websites or learning sites.

We also recommend using AI translation sites such as DeepL to translate into Indonesian .

You can also find more information about Indonesian translation in this article.

Please take a look.

2. [Free] Indonesian audio read aloud on the "Ondoku" website

Once you have prepared the text, you can create audio for free on the Ondoku website.

First, open the top page of the "Ondoku" website.

Ondoku

Paste your Indonesian text into the text box.

Paste Indonesian text

This time, we are entering the poem "Aku" by Indonesian poet Chairil Anwar as an example.

Select "Indonesia (Indonesia)" from the language list.

Select language

Select the type of voice you want to use for reading.

Select the audio type

For the Indonesian voiceover of "Ondoku," you can choose between a female and male voice.

You can listen to it in this article, so be sure to check it out!

With Ondoku, you can also change the reading speed and pitch of the voice.

Speed and height adjustment

This time, it will be read aloud with the default settings.

You're now ready to go.

Ready

Press "Read aloud" to start the speech synthesis .

The speech synthesis process takes just a few seconds .

Once the process is complete, the screen will change and an audio player will be displayed.

Reading process completed

If you listen to the audio and there are no problems, press "Download" to save the audio file to your smartphone or PC .

Now you can use Ondoku to create audio for learning Indonesian for free!

3. Learn Indonesian using audio created by "Ondoku"

All you have to do is use the audio files you created to learn Indonesian !

When practicing listening, simply play the audio file.

When learning speaking and pronunciation, practice repeatedly until you can pronounce the same words as the audio files.

I recommend incorporating shadowing into your studies.

Shadowing is a study method in which you play an audio file and then pronounce the words at the same speed as if you are following along .

By doing this repeatedly, you can improve your listening, speaking, and pronunciation at the same time.

If the audio is too fast, you can use Ondoku 's reading speed change function to create a teaching material audio that reads more slowly .

For more information on shadowing, please see this article, using English learning as an example.

Please take a look.

In this way, you can learn Indonesian for free by using the AI reading app "Ondoku" !

You can freely create Indonesian language learning materials, from basic conversation and travel conversation to business conversation, so why not try out "Ondoku" for free ?

Things you need to know when learning Indonesian

Things you need to know when learning Indonesian

From here on, we will introduce some knowledge that will help you gain a deeper understanding of learning Indonesian.

By knowing the characteristics of Indonesian and the key points to learning it, you will be able to learn Indonesian more smoothly.

What kind of language is Indonesian? Basic knowledge for learning

Indonesian is one of the most widely spoken languages in the world.

It is the seventh most spoken language in the world.

Indonesia has a population of approximately 280 million, making it the fourth largest in the world.

In addition, Malaysian (Malay), which is almost identical to Indonesian, is also used in Malaysia and other Southeast Asian countries.

In this way, if you learn Indonesian, you will be able to communicate with many people.

This will be useful not only for travel but also for business with Indonesia, which is experiencing rapid growth.

Indonesian grammar is very simple

The most distinctive feature of Indonesian is its simple grammar .

There are no tenses like in English, and there are almost no verb conjugations.

Indonesian is said to be an easy language to learn because nouns have plural forms.

Indonesian pronunciation is also relatively easy for Japanese speakers to learn .

Indonesian is written in the Roman alphabet, so it's easy to learn to read and write.

Indonesian pronunciation is regular, and if you read it exactly as it is written, it will be understandable, so the hurdle for learning pronunciation is low.

As such, Indonesian is an easy to learn and widely used language.

Indonesia is a rapidly developing country and you will have the opportunity to interact with many people, so it is a great place to start studying .

What are the common stumbling points when learning Indonesian?

Indonesian is an easy language to learn, but there are some stumbling blocks.

First of all, Indonesian has casual expressions used in everyday conversation and polite expressions used in formal situations .

For example, the Indonesian word for "you" can be "kamu," "Anda," "Bapak," or "Ibu," and you need to use different words depending on the person and the situation.

It is important to read lots of example sentences on Indonesian language learning sites and apps to get a feel for how to use them.

Also, be careful of Indonesian slang and youth slang .

There are often differences between the Indonesian you learn from textbooks or apps and the Indonesian that Indonesians actually use.

When you actually talk to Indonesians you meet online, you may find that they use a lot of words you don't know.

In such cases, we recommend that you use social media or YouTube to get in touch with Indonesian language in action .

If you come across a word you don't understand, you can input it into "Ondoku" and have it read out loud, helping you learn the pronunciation of unfamiliar words.

To learn Indonesian, it is important to listen to and speak a lot of Indonesian.

We recommend taking advantage of free websites and apps such as "Ondoku" to quickly learn Indonesian expressions and vocabulary.

Why not try learning Indonesian using some of our recommended free sites and apps?

In this article, we explained recommended websites and apps for learning Indonesian, as well as key points to keep in mind when learning.

You can easily start learning Indonesian by using free websites and apps.

We especially recommend using the AI app "Ondoku" to create teaching materials for listening, speaking, and shadowing .

By using free websites and apps, you can effectively improve your Indonesian pronunciation and listening skills.

Why not start learning Indonesian today using these recommended free sites and apps?

■ AI voice synthesis software "Ondoku"

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

  • Supports approximately 50 languages, 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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