4 Best Free Sites & Apps for Learning Indonesian: Tips & Usage

Sept. 4, 2026

4 Best Free Sites & Apps for Learning Indonesian: Tips & Usage


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I want to study Indonesian for free! What websites or apps are recommended?

Indonesian is currently gaining more and more attention.

Indonesia is a country with the fourth-largest population in the world and is experiencing remarkable economic growth.

Because there are many attractive tourist destinations such as Bali and Jakarta, the number of people who want to study Indonesian for free is rapidly increasing.

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

In such cases, it is recommended to study Indonesian using websites and apps that can be used for free.

In this article, we will introduce recommended Indonesian learning websites and apps, as well as learning tips in detail!

If you want to start learning Indonesian, why not use this article as a guide to find the perfect learning method for you?

[Free] Recommended Free AI Website for Learning Indonesian!

Ondoku

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

"Ondoku" is an AI app that can read aloud Indonesian text using latest AI.

It can be used easily from the website right now in any environment, including iPhone, Android smartphone, and PC.

The biggest feature is that you can create native pronunciation audio with a high-performance AI voice synthesis engine.

You can create and study with materials that suit your purpose, such as travel, business, or language proficiency tests.

Moreover, "Ondoku" is free!

Since you can read aloud up to 5,000 characters for free, you can create many Indonesian language learning materials.

Why don't you also use "Ondoku" for free to study Indonesian?

Free Websites and Apps are Recommended for Learning Indonesian!

Free websites and apps are recommended for learning Indonesian!

If you are going to study Indonesian, it is recommended to utilize free websites and apps.

With free sites using the latest AI, you can easily create listening and speaking materials.

You can also proceed with your studies during your spare time using smartphone apps specialized for Indonesian.

Create Indonesian Listening and Speaking Materials for Free with AI Apps

If you are studying Indonesian, it is recommended to utilize free websites and apps!

A tool you definitely want to use 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 materials according to your learning goals, such as travel or business.

Since you can create Indonesian materials with native pronunciation, it is perfect for learning listening, speaking, and shadowing.

If you want to make Indonesian learning materials, the AI app "Ondoku", which can be used for free from a website, is recommended.

You can download files to your iPhone or Android smartphone and study Indonesian freely anytime.

Why not start learning Indonesian by utilizing the latest AI?

With Free Smartphone Apps, You Can Study Indonesian Anytime!

For learning Indonesian, learning apps that can be used for free on iPhone and Android smartphones are also recommended.

The biggest merit of using free apps on iPhone (iOS) or Android smartphones is that you can study Indonesian anytime and anywhere you like.

You can study Indonesian by utilizing spare time, such as commuting time, lunch breaks, or a few minutes before going to bed.

Another merit of using free apps on iPhone (iOS) or Android smartphones is that you can study Indonesian at your own pace.

Since there is no need to attend a language school at a fixed time, even busy people can continue their Indonesian studies.

Free Indonesian learning websites and apps support various learning styles.

There are various free apps, such as apps specialized for word memorization, apps with substantial grammar explanations, and apps where you can practice conversation, so you can proceed with Indonesian learning more enjoyably.

To continue Indonesian learning smoothly, it is recommended to combine free AI sites and free smartphone apps.

By using them differently—such as free AI text-to-speech sites for listening and speaking, and free smartphone apps for vocabulary and grammar—you can improve your Indonesian smoothly.

In this way, it is recommended to utilize free websites and apps for studying Indonesian.

Why don't you also study Indonesian for free on your smartphone or PC?

[Free] 4 Recommended Websites and Apps for Indonesian Learning

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

Each website and app has its own characteristics, so please find the one that perfectly fits your learning purpose.

  1. Ondoku
  2. BINTANGO
  3. Nemo Indonesian
  4. Osaka University Indonesian Self-Study Content

1. Ondoku | The Best Recommended Free AI Web App for Learning Pronunciation and Listening

Ondoku

If you are studying Indonesian, the AI text-to-speech service "Ondoku" is recommended!

"Ondoku" is a free AI app that can convert Indonesian text into audio with native pronunciation using latest AI technology.

The greatest feature of "Ondoku" is that you can freely create Indonesian listening materials.

You can turn any text into audio, such as sentences from Indonesian textbooks or reference books, everyday conversation, or business Indonesian phrases.

Even when you cannot find materials for the content you want to study in commercially available materials, you can use "Ondoku" to create your own personalized Indonesian learning materials.

In addition to learning Indonesian, it can also be used to create Indonesian narration for YouTube videos.

Since "Ondoku" is a web app used from a browser, it can be used easily without installation.

From iPhone (iOS), Android smartphones, or PCs, simply opening the site is all it takes.

Audio Can Be Adjusted, Making It Perfect for Creating Indonesian Materials

With "Ondoku"'s Indonesian text-to-speech, you can choose from 6 types of voices.

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

Another key point is that you can adjust the reading speed.

Since the audio speed can be lowered to 0.3x, you can start learning at a slow speed and then increase the speed once you get used to it.

You can listen to samples of "Ondoku"'s Indonesian audio in this article.

Please take a look!

For learning and checking pronunciation of Indonesian and Javanese! Voice sample listening & How to use free text-to-speech 'Ondoku'

For learning and checking pronunciation of Indonesian and Javanese! Voice sample listening & How to use free text-to-speech "Ondoku"

You can listen to audio samples of Indonesian and Javanese available on Ondoku. Checking pronunciation is essential for smooth communication with Indonesian and Javanese speakers. In such cases, Ondoku is recommended! A text-to-speech service...

Create Indonesian Learning Materials for Free with "Ondoku"!

Moreover, "Ondoku" is free!

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

For learning Indonesian pronunciation and listening, "Ondoku" is recommended!

Commercial use is also permitted, so it can be used for business videos aimed at Indonesia or for producing audio for tourist information.

Why don't you use "Ondoku" for free for your Indonesian studies?

2. BINTANGO | A Free App for Japanese Speakers Specialized in Learning Indonesian Vocabulary

BINTANGO

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

It is an app compatible with iPhone (iOS) and Android smartphones and can be used for free.

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

It is an app with content narrowed down to Indonesian vocabulary learning, covering a wide range from basic words to technical terms and slang.

In addition to vocabulary learning, there are also Indonesian translation functions and a Q&A board function for Indonesian learners.

In the Indonesian translation function, particularly important words are displayed, and you can check if you remember them.

The app screen is well-crafted, and another point is that you can proceed with Indonesian learning comfortably.

If you are learning Indonesian, it is a recommended free app that you definitely want to install on your iPhone or Android smartphone.

3. Nemo Indonesian | A Free App for Memorizing Phrases and Vocabulary

Nemo Indonesian

"Nemo Indonesian" is an app where you can learn Indonesian phrases and vocabulary.

It is compatible with iPhone (iOS) and Android smartphones, and basic functions can be used for free.

You can learn by displaying basic phrases and vocabulary like a wordbook.

On the screen displaying phrases and vocabulary, it is also possible to play audio.

However, only a portion can be used in the free version, and it is necessary to purchase the paid version for learning advanced phrases and vocabulary.

It is a free app you want to utilize when starting your Indonesian studies.

4. Osaka University Indonesian Self-Study Content | A Learning Website That Can Be Used for Free

Osaka University Indonesian Self-Study Content

For those who want to study Indonesian grammar on a website, "Indonesian Self-Study Content" provided by Osaka University is recommended.

It is an Indonesian learning site officially provided by the university and can be used for free.

The curriculum is systematically organized to include Indonesian grammar, vocabulary, and conversation, allowing for step-by-step learning of Indonesian from the basics.

Materials are prepared for each situation, such as "Riding a Bus" or "Shopping," much like a language textbook, so even those who have just started learning Indonesian can proceed smoothly.

Of course, it can be used not only from a PC but also from iPhone and Android smartphones.

Tokyo University of Foreign Studies' Indonesian Learning Site is Also Recommended

Another famous university-provided Indonesian learning site is the "Tokyo University of Foreign Studies Language Modules."

Even more detailed content regarding Indonesian pronunciation and grammar is available, so it is recommended to use it alongside the Osaka University site.

Why Not Use Recommended Websites and Apps to Study Indonesian for Free?

In this way, if you utilize recommended free websites and apps, anyone can easily start learning Indonesian.

Indonesian is a language written in the alphabet, and its pronunciation is clear, so self-study is possible using free websites and apps.

By using the AI text-to-speech service "Ondoku", you can easily turn words and sentences not found in apps or sites into audio.

Why don't you also study Indonesian for free on your iPhone, Android smartphone, or PC?

[Free] Explaining the Flow of Creating Indonesian Materials with the AI Text-to-Speech App "Ondoku"

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I want to try using a free app for my Indonesian studies!

From here, we will briefly introduce the flow of studying Indonesian with the AI text-to-speech app "Ondoku"!

1. Prepare Indonesian Learning Text

Prepare Indonesian learning text

First, prepare the text you want to use for studying Indonesian.

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

It is also recommended to translate into Indonesian using AI translation sites such as DeepL.

Translation of Indonesian is also explained in this article.

Please take a look.

What are the points for Indonesian translation? Explaining in detail how to utilize free AI translation apps and voice synthesis

What are the points for Indonesian translation? Explaining in detail how to utilize free AI translation apps and voice synthesis

Introducing free apps and software that can be used for Indonesian translation. Specifically introducing precautions when translating Japanese or English into Indonesian, and how to utilize them in YouTube video narration production and language learning.

2. [Free] Read Aloud Indonesian Audio on the "Ondoku" Site

Once the text is prepared, create audio for free on the "Ondoku" site.

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

Ondoku

Paste the Indonesian text into the text box.

Paste Indonesian text

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

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

Select language

Choose the type of voice to use for reading.

Select voice type

With "Ondoku"'s Indonesian text-to-speech, you can choose between female and male voices.

You can listen to samples in this article, so please take a look!

For learning and checking pronunciation of Indonesian and Javanese! Voice sample listening & How to use free text-to-speech 'Ondoku'

For learning and checking pronunciation of Indonesian and Javanese! Voice sample listening & How to use free text-to-speech "Ondoku"

You can listen to audio samples of Indonesian and Javanese available on Ondoku. Checking pronunciation is essential for smooth communication with Indonesian and Javanese speakers. In such cases, Ondoku is recommended! A text-to-speech service...

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

Adjusting speed and pitch

This time, we will read with the default settings.

Now the preparation is complete.

Preparation complete

Press "Read Aloud" to start voice synthesis.

The voice synthesis process completes in a few seconds.

When the process is finished, the screen switches and an audio player is displayed.

Read aloud process complete

If there are no problems after listening, press "Download" to save the audio file to your smartphone or PC.

With this, you have created audio for Indonesian learning for free using "Ondoku"!

3. Study Indonesian Using Audio Created with "Ondoku"

All that's left is to study Indonesian using the created audio files!

When studying listening, just play the audio file as it is.

For studying speaking and pronunciation, practice repeatedly so you can achieve the same pronunciation as the audio file.

It is recommended to incorporate "Shadowing" into your studies.

Shadowing is a study method where you pronounce at the same speed as if you were following the audio file after it is played.

By doing this repeatedly, you can train 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 material audio that reads aloud slowly.

Shadowing is explained in this article using English learning as an example.

Please take a look.

[Complete Guide] What is the method for English shadowing? Also explaining how to make materials for free!

[Complete Guide] What is the method for English shadowing? Also explaining how to make materials for free!

Efficiently boost your English skills with shadowing! Explaining the learning method that improves listening, pronunciation, and speaking at the same time for beginners. Also introducing how to create materials with free AI voices.

In this way, by using the AI text-to-speech app "Ondoku", it is possible to study Indonesian for free!

Since you can freely create Indonesian materials from basic conversation and travel conversation to business conversation, why don't you also experience "Ondoku" for free?

Points You Want to Know When Studying Indonesian

Points you want to know when studying Indonesian

From here, we introduce knowledge to understand Indonesian learning more deeply.

By knowing the characteristics of Indonesian and points for learning, you can acquire Indonesian more smoothly.

What Kind of Language is Indonesian? Basic Knowledge for Learning

Indonesian is a language with a particularly large number of speakers among languages spoken in the world.

It is surprisingly the 10th most spoken language in the world.

Indonesia's population is approximately 280 million, the 4th largest in the world.

Furthermore, Malay (Malaysian language), which is almost the same language as Indonesian, is also used in Malaysia and other Southeast Asian countries.

What is the difference between Indonesian and Malaysian? Thoroughly explaining the relationship between the two languages and learning points

What is the difference between Indonesian and Malaysian? Thoroughly explaining the relationship between the two languages and learning points

Thoroughly explaining the differences between Indonesian and Malaysian! From differences in vocabulary and pronunciation to which one you should learn, historical background, and recommended learning methods. Full of information useful for travel and business in Southeast Asia.

In this way, if you remember Indonesian, it is possible to communicate with many people.

You can use it not only for travel but also for business with rapidly growing Indonesia.

Indonesian Grammar is Very Simple

The greatest feature of Indonesian is that the grammar is simple.

There are no tense changes like in English, and there is almost no verb conjugation.

Since nouns do not have plural forms, Indonesian is said to be an easy language to learn.

Also, Indonesian pronunciation is relatively easy for Japanese speakers to acquire.

Since Indonesian is written in Roman characters (alphabet), it is also easy to remember reading and writing.

Indonesian pronunciation is regular, and since it generally sounds the way it is written, the hurdle for learning pronunciation is low.

Thus, Indonesian is an easy-to-learn and widely used language.

Since you can interact with many people in the greatly developing Indonesia, it is recommended to start learning from now on.

What are the Points Where It is Easy to Stumble in Indonesian Learning?

Indonesian is an easy-to-learn language, but there are several points where it is easy to stumble.

First, in Indonesian, there are casual expressions used in everyday conversation and polite expressions used in formal situations.

For example, the Indonesian word for "you" needs to be used differently, such as "kamu," "Anda," "Bapak," or "Ibu," depending on the person and the situation.

It is important to read many example sentences on Indonesian learning sites and apps to get a sense of how to use them differently.

Also, pay attention to Indonesian slang and youth slang.

There are often differences between the Indonesian learned in textbooks or apps and the Indonesian actually used by Indonesians.

When you actually talk to Indonesians you've met on the internet, you might find many unknown words being used.

In such cases, it is recommended to get in touch with Indonesian as it is actually used on social media or YouTube.

If there is a word you don't understand, you can enter it into "Ondoku" and have it read aloud to learn the pronunciation of the unknown word.

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

It is recommended to utilize free websites and apps, starting with "Ondoku", to learn more and more Indonesian expressions and words.

Why Not Study Indonesian with Recommended Free Websites and Apps?

In this article, we explained recommended websites and apps that can be used for learning Indonesian, as well as learning points.

If you utilize free websites and apps, you can easily start learning Indonesian.

Particularly recommended is creating materials for listening, speaking, and shadowing using the AI app "Ondoku".

By utilizing free websites and apps, you can effectively train your Indonesian pronunciation and listening skills.

Using recommended free websites and apps, why don't you also start learning Indonesian from today?

Translation:

■ 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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