What are Text-to-Speech Tools? Best Recommendations and Free Options!

July 22, 2026

What are Text-to-Speech Tools? Best Recommendations and Free Options!

"Text-to-speech tools" and "text-to-speech services" are useful when you want text read aloud.

  • What are text-to-speech tools and services?
  • Recommended text-to-speech tools
  • How to use them for free

We will introduce these and more.

What is a text-to-speech tool?

A text-to-speech tool is software that converts documents such as text and characters into audio and reads them aloud.

The audio is not someone speaking in real-time, but a generated machine voice.
Thanks to recent improvements in AI technology, even machine voices are now capable of very natural text-to-speech reading. If you haven't tried it yet, please give it a try right now! You'll surely be surprised, thinking, "Is this really a machine voice?"

Is downloading a text-to-speech tool mandatory?

Text-to-speech tools are developed, sold, and distributed by multiple companies.

  • Those that must be downloaded and installed on a computer
  • Those that can be used in a web browser on smartphones and computers
  • Those that can be used via smartphone apps

There are various types such as these.

Text-to-speech tool does not necessarily mean downloading is mandatory, so it is best to find a tool that suits your purpose.

In such a situation,

  • No download required
  • Available for free
  • Easy to use

if you are looking for these, Ondoku is recommended.

Ondoku

Since Ondoku can be used in a web browser, no download is required.

As long as you have an internet connection, you can use it from anywhere, regardless of the device—smartphone, tablet, or computer.

It has a function to download it as an app on your smartphone, so you can easily access and use it from your phone.

Recommended services for free text-to-speech

Actually, there are various tools for using text-to-speech for free.

  • Windows built-in text-to-speech
  • Mac built-in text-to-speech
  • Free text-to-speech tools, etc.

However, most text-to-speech tools cannot be used for commercial purposes such as work.

But with Ondoku, commercial use is fine. There are many situations where it can be used for free, and the specific cases where free commercial use is allowed are clearly stated, so you can use it with peace of mind.

Additionally, the text-to-speech tool Ondoku is characterized by being intuitive and easy to use.

  1. Copy and paste the text you want to read into the text box
  2. Turn on the speaker, and
  3. Just press the "Read" button.
    That's it.

You can also easily save the audio created by the reading through "Download."
The file formats supported are MP3 and WAV.

Please refer to the article below for detailed usage instructions.

How to use the text-to-speech software Ondoku, membership registration methods, and useful functions

How to use the text-to-speech software Ondoku, membership registration methods, and useful functions

Ondoku is a relatively new text-to-speech service that started in May 2020. No tedious software downloading or installation is required, and it can be used on the website via the internet. We will introduce how to use Ondoku in detail.

Text-to-speech with multiple voices such as female and male voices is possible

A more important factor than you might think in text-to-speech is whether or not you can choose the type of speaker.

If you cannot choose a voice that suits your preference, it can become tiring to listen to or simply not match your taste.

Especially when used for narration, many people tend to prefer

  • female voices

Ease of listening and a comfortable vocal range are the main factors.

For Ondoku's Japanese audio, 16 types of voices are available, including male, female, and child (girl) voices.

You can also choose the pitch (high or low) and change the speaking speed, allowing you to adjust the settings to your liking.

Try listening to 16 types of voices from the text-to-speech software Ondoku for free. Change impressions by adjusting the pitch.

Try listening to 16 types of voices from the text-to-speech software Ondoku for free. Change impressions by adjusting the pitch.

Ondoku has 16 types of Japanese voices. Of course, both male and female voices are available. We have made it possible for you to sample 8 commonly used Japanese voices and hear how they sound when the pitch is adjusted.

With a free membership registration, Ondoku allows you to read up to 5,000 characters per month.

The text is read aloud with high-quality audio.

Since you can try it for free, please give it a go.

■ 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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