text-to-speech software

When you enter text in the text box below, you will hear it in your favorite voice.
You can not only listen to the read text on the spot but also download it as an audio file (.mp3).




How to use

How to use

  • 01. Paste text

    Paste the text you want to hear in the text box. You can enjoy conversion of up to 5,000 characters for free.

  • 02. Setting

    Choose your preferred language, sound quality, and speed. English Supports various languages other than . Supports up to 4x speed.

  • 03. Playback

    Click on the button to convert to speech. It takes a few second to read about 1000 characters, and audio file (mp3) will be generated and played immediately. Mp3 file can also be shared on SNS or downloaded.

What you can do with "Ondoku"


You can use it from iPhone, Android, or PC, whatever connected to the Internet. You can use it freely when you are at home, when you are out, or anywhere.

01. Both smartphones and computers
Customize the reading to your liking
02. Customize to your favorite voice

You can customize the language, voice, speed and pitch to your liking. Male voice, female voice, and speed can be increased up to 4 times. Ondoku supports many languages such as English, Chinese, French, Italian and Japanese. Check supported languages and sample voices.

By reading the sentences in order using multiple voices, it is possible to read aloud as if you were talking ! You can make skits with multiple voices, or combine voices from different languages for language learning.

You can also talk with multiple voices!
03. You can also talk with multiple voices!
Download audio file
04. Download audio file

Audio can be downloaded as MP3 or WAV. You can easily download it by clicking ︙ on the right side of the play button that appears after reading aloud.

The downloaded audio can also be used as a narration for the video . It is perfect for those who do not want to make an appearance or voice on a video posting site such as YouTube.

Leave the narration of the video
05. Leave the narration of the video
Google Chrome extension
06. Google Chrome extension

With Ondoku's Google Chrome extension , you can read ranged text with just one click. You can convert sentences that are a little long and difficult to read into voice and listen to them.

You can copy the HTML tag of the audio read out by Ondoku and paste it onto your blog or homepage.

People who visit your site just press the play button on the player!
You can listen to the audio without reading the text, increasing your satisfaction level!

If you use a WordPress plugin, you can automatically update the audio file every time you update an article.

Ondoku Blog Linkage / WordPress Plugin
07. Cooperation with blogs is also OK!
Available for commercial use and used in various situations
08. Available for commercial use and used in various situations

Ondoku is available for commercial use and can be applied to a variety of scenes.

Specific usage examples include Youtube narration, Vtubers' voices, blog audio, proofreading and training at work, e-learning, foreign language training, learning support tools, audio books, automatic voice and voice guidance for broadcasting, It is used for TV narration, character voices and explanatory voices for products, etc.

Ondoku supports communication in various situations. More detailed information is available here.

All pages are encrypted with SSL/TLS, so third parties cannot view the contents.

In addition, the read text and audio are stored on a server with a strong security system and can only be viewed by logged in users.

By manually deleting from the history, you can completely delete the read sentences and audio files from the server. For free users, it will be automatically deleted after one month.

Reliable security
09. Reliable security
Easy sharing on SNS
10. Easy sharing on SNS

By registering as a member for free, you will be able to easily share the audio files made by Ondoku on SNS. You can easily share to various places such as Twitter and blog.

See more Ondoku use cases

Respond to your request

We always modify Ondoku so it becomes "easy to use" for users. We will sincerely answer requests such as "I want you to do this" and "Is this possible?" Please feel free to contact us if you have anything that you noticed to make Ondoku even more convenient.

Try Ondoku for free now

Commercial use OK

It is allowed to use the audio file generated by Ondoku for your service. There are endless ways to use; it’s all up to you.

* For details, visit here


Enjoy high-quality speech

You can enjoy speech function with easy-to-listen voice that you will not get tired of.
Say goodbye to the unpleasant robotic voice.

From reading to listening

The Value Plan offers conversion of 450,000 characters, equivalent to 4 paperback books. From now on, you can enjoy long materials while multitasking, as if you are listening to music or listening to the radio.

Purchase now




$ 0 / Month

Those who want to feel free to try Ondoku

  • 1,000 characters/month
  • 3 images/month
  • History cannot be viewed
  • Free membership; registration not required
  • Attribution statement required


$ 0 / Month

Those who want to experience Ondoku more

  • 5,000 characters/month
  • 5 images/month
  • Download
  • Conversion history available
  • Maximum storage period 30 days
  • Attribution statement required


$ 9.99 / Month

Those who want to use it for video narration and presentations

  • 200,000 characters/month
  • 300 images/month
  • Download
  • Conversion history available
  • Unlimited storage period
  • No attribution statement required


$ 19.99 / Month

Those who want Ondoku to read the text every day like listening to the radio

  • 450,000 characters/month
  • 1000 images/month
  • Download
  • Conversion history available
  • Unlimited storage period
  • No attribution statement required


$ 29.99 / Month

Those who want to read a lot of text without worrying about the limit on the number of characters to read

  • 1,000,000 characters/month
  • 2500 images/month
  • Download
  • Conversion history available
  • Unlimited storage period
  • No attribution statement required

Comparison to other companies


Company A

  • Free characters:
    100 characters / once
  • Price: $ 70 ~ $ 200
  • PC
    (Windows only)
  • Available speed: 4 times
  • Language:English
  • Not for commercial use
  • No audio download


  • Free characters:
    5,000 characters/month
  • Price: $ 0 ~ $ 29.99
  • Smartphones and PC
  • Available speed: 4 times
  • Multilingual / Multiple voice
  • Commercially available
  • Audio downloadable
  • Audio split download available
  • Read aloud from image available

Company B

  • Free characters:
    trial version: 716
  • Price: $ 100 ~ $ 150
  • PC
  • Available speed: 4 times
  • Language:English
  • Commercially available
  • Audio downloadable

Customer reviews


I used to use other Text-to-Speech software, but I was tired of the robotic voice. However, Ondoku is different! The first time I used Ondoku, I was surprised and fascinated by the smooth voice. Since then, I have been using Ondoku.


I am a blogger. I was looking for a reading aloud tool after receiving a request from a reader saying, "It's hard to read, so could you read it aloud on YouTube or something?" That's when I met Ondoku. You can easily embed it on your blog, and commercial use is OK, so you can use it with confidence.


Ondoku is used for pre-learning videos for online training! The narration is amazingly natural, almost like being read by a professional voice actor. We were able to provide a truly innovative learning experience!


As a researcher, I often have to give presentations at academic conferences in English. By having Ondoku read my manuscript aloud, my poor English presentation became easier at once. Ondoku is truly a savior that relieves the stress of English presentations!




Please visit here for frequently asked questions when using Ondoku.

Anyone can try for free up to 1,000 characters/month. With free registration, you can try text to speech conversion of up to 5,000 characters/month for free.
We take bank transfer in annual contract only. Please visit here for more details
We issue receipt. Please note that the method depends on the payment method. Please visit here for more information.
You are not required to create a PayPal account, but you can choose to create an account for your convenience. It can be used for payment management and at various shopping sites in the future.
PayPal payments are made every 30 days, so it does not matter whether you subscribe at the beginning or at the end of the month. After the payment, the number of characters that can be used for each plan will be set.
The remaining number of characters is reset every month and will not be carried over to the next month.
For free account, it will be reset 30 days after registration. If you have an account with a contract with charge, it will be reset on the payment date.
There is no minimum usage period (contract period). You can cancel at any time.
Please cancel the current contract from the Setting and then sign up for a new plan.
The current remaining characters can be used for 30 days after the last payment. Then, it will be reset to 5,000 characters.
Please log in, and you can cancel your registration from the Setting.

Now let's make the text into speech

You can try text-to-speech conversion of 5,000 characters a month simply by registering as a member for free. It is also possible to play again from the conversion history. Sign up for a free membership now.

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