[2026 Latest] 6 Recommended Speech Synthesis Sites! A Complete Guide to Free AI Text-to-Speech Services

I want to know about free speech synthesis sites!

Free speech synthesis sites that convert text into natural speech are drawing a lot of attention!

In various situations such as video production, presentation materials, and language learning, there are times when you need text-to-speech audio.

However, recording it yourself can be unexpectedly difficult.

In such cases, free speech synthesis sites are very convenient!

With advancements in AI technology, it has become easy to create natural speech that sounds just like a real human.

What's more, sites that can be used for free have emerged!

In this article, we will carefully select and introduce recommended speech synthesis sites, ranging from free services to high-quality sites utilizing AI technology.

Why don't you use this article as a reference to try out these recommended speech synthesis sites?

[Free] Recommended AI Speech Synthesis Sites You Can Use for Free Right Now

For those looking for a speech synthesis site, we recommend Ondoku.

Ondoku is a free speech synthesis site using the latest AI technology.

No installation is required, and you can use it immediately from your browser.

Its biggest attraction is the ability to easily generate high-quality speech just by entering text.

With a wide variety of voices—including female, male, and children—you can read text aloud in a clear and easy-to-hear voice.

And Ondoku is free!

You can read aloud for free up to 1,000 characters without registration, and up to 5,000 characters after registering.

Since commercial use is OK, you can use it with peace of mind for video monetization or business purposes.

If you're unsure which speech synthesis site to choose, why not start with Ondoku?

Basic Knowledge of Speech Synthesis Sites. What are the Characteristics of Free Text-to-Speech Methods?

First, we will briefly explain the characteristics of free speech synthesis sites.

Speech Synthesis Sites Allow You to Read Text Aloud for Free

A speech synthesis site is a web service that automatically converts entered text into speech.

Simply by entering the sentences you want to read, you can synthesize easy-to-hear audio files that sound like a human reading them.

Synthesized audio files can be downloaded in convenient formats such as MP3.

In the past, speech synthesis technology could only produce robotic voices, but now, with the latest AI technology, it is possible to synthesize natural, human-like speech.

Currently, free speech synthesis sites are especially recommended.

By using a speech synthesis site through your browser, you can synthesize high-quality speech for free.

Since speech synthesis sites process the reading in the cloud, you can utilize the latest AI speech synthesis technology regardless of your computer's performance.

Tasks that previously required hiring a professional narrator can now be completed instantly using a speech synthesis site.

What are the Benefits of Free Speech Synthesis Sites?

Free speech synthesis sites offer many advantages.

First, they are easy to use with no installation required.

As long as you have a browser, you can access speech synthesis sites immediately from any device.

You can synthesize speech with the latest AI from any environment, including Windows, Mac, Linux, iPhone (iOS), and Android.

The fact that a high-performance computer is not required is another major benefit of free speech synthesis sites.

Since AI processing is done in the cloud, even older computers can use the latest speech synthesis technology.

Low cost is another feature of speech synthesis sites.

Tasks that might cost tens of thousands of yen when hiring a professional narrator can be completed for free using a free speech synthesis site.

Furthermore, it is possible to commercially use the synthesized audio files.

What is the Difference Between Browser-based and Installation-based?

Methods for AI speech synthesis include browser-based speech synthesis sites and speech synthesis software that you install on your computer.

Browser-based speech synthesis sites are recommended!

The biggest attraction is the ease of starting immediately on any PC or smartphone.

With the free speech synthesis site Ondoku, you can read aloud using the latest AI technology just by accessing it.

Installation-based speech synthesis software is characterized by being usable even in offline environments.

However, high-quality speech synthesis utilizing AI technology often requires a high-performance computer.

Additionally, many installation-based software options are paid and require purchasing a package.

• Beginners
• Those who want to try speech synthesis easily
• Those who want to create speech right now

For these people, free speech synthesis sites are recommended.

[Free] 6 Recommended Free Speech Synthesis Sites

I want to know about recommended speech synthesis sites!

Now, let's introduce the recommended speech synthesis sites in detail!

1. Ondoku
2. TTSMaker
3. ttsMP3.com
4. ゆくも！
5. Narakeet
6. TTSFree

1. Ondoku | The Best Recommended Free AI Speech Synthesis Site

Ondoku is a free speech synthesis site recommended for those who want to create text-to-speech audio from now on.

Its greatest feature is the ability to read aloud with natural speech utilizing the latest AI technology.

A wide range of voices including female, male, and children are available, allowing you to choose the best voice for your purpose.

Listen to 16 types of voices from the text-to-speech software Ondoku for free. Change impressions with pitch adjustments | Text-to-speech software Ondoku

Ondoku has 16 types of Japanese voices. Of course, both male and female voices are available. We have made it possible to listen to 8 commonly used Japanese voices and their variations when the pitch is adjusted.

Furthermore, speech synthesis is possible in multiple languages such as English, French, German, Chinese, and Korean.

It also features a Conversation function, so you can create dialogue-style audio using multiple voices.

Adjustments such as changing voice pitch and speed, or using SSML (Speech Synthesis Markup Language) tags, are also possible.

Commercial Use is OK for Free. Recommended for Monetization and Business Use

Ondoku allows commercial use for free.

You can use it with confidence when you want to monetize videos on sites like YouTube, or use it for business purposes such as announcements or call centers.

For more details on commercial use, please see this article.

What you can do with Ondoku. About commercial use (business use) and prohibited items. | Text-to-speech software Ondoku

Commercial use (business use) is possible with Ondoku. Whether individual or corporate, use for the purpose of obtaining direct or indirect financial profit is considered commercial use. However, please note that Ondoku has established prohibited acts. This time, we will introduce what you can and cannot do with Ondoku.

Ondoku is a Free AI Speech Synthesis Site You Can Use for Free

And Ondoku is free!

You can read aloud and download for free up to 1,000 characters without registration, and up to 5,000 characters after registering.

Since it can be used immediately from a browser without installation, why not experience the AI speech synthesis of Ondoku for yourself?

2. TTSMaker | A Global and Multi-functional Speech Synthesis Site

TTSMaker is a speech synthesis site known for its multi-functionality.

Because it supports multiple languages, it can be utilized for global content production.

Fine parameter adjustments for speech speed, pitch, volume, etc., are also possible.

While the free version has limitations, basic speech synthesis is available for free.

It is a recommended speech synthesis site as an option for creating audio for foreign audiences.

3. ttsMP3.com | A Speech Synthesis Site Using Amazon Polly

ttsMP3.com is a speech synthesis site that uses the AI speech synthesis engine Amazon Polly.

You can synthesize text in languages supported by Amazon Polly into male, female, or children's voices.

It also supports SSML, allowing for fine pronunciation adjustments.

Also, as the site name suggests, it is possible to download files in MP3 format.

It is a recommended free speech synthesis site for those who want to try Amazon Polly.

4. ゆくも！ | A Speech Synthesis Site That Can Use Yukkuri Voices

ゆくも！ is a speech synthesis site specializing in Yukkuri voices.

It uses a speech synthesis engine called AquesTalk and can read aloud in the characteristic "Yukkuri voices" (monotone voices).

It is ideal for creating audio for "Yukkuri commentary" and "Yukkuri game commentary" videos popular on YouTube and Nico Nico Douga.

Since it can be used from a browser without installation, it is a recommended speech synthesis site for those who want to easily create Yukkuri videos.

While it is a free speech synthesis site, caution is required for commercial use.

Non-commercial use by individuals is free, but a license purchase is required for commercial use.

5. Narakeet | A Speech Synthesis Site Strong in Education and Presentation Uses

Narakeet is a speech synthesis site strong in uses such as education and presentations.

It supports many languages and offers special plans for educational institutions, making it ideal for creating learning content.

Although it is a speech synthesis site that can be used for free, there are functional limitations.

It is a convenient speech synthesis site when you want to produce content for overseas or in multiple languages.

6. TTSFree | A Simple Speech Synthesis Site

TTSFree is a speech synthesis site whose appeal lies in its simplicity.

With an intuitive interface, you can operate it without hesitation even if you are not used to speech synthesis sites.

It supports major languages such as Japanese and English.

Created audio can be downloaded in MP3 format.

[Free] Detailed Explanation of How to Use Free Speech Synthesis Sites

How do I use a free speech synthesis site? Is it easy to use?

From here, we will explain how to use a free speech synthesis site using Ondoku as an example!

How to Read Text Aloud for Free on the Free Speech Synthesis Site Ondoku

On the free speech synthesis site Ondoku, synthesizing speech from text is very easy.

First, access the Ondoku official website in your browser.

Once you open the top page, enter the text you want to read aloud into the text input field.

You can read up to 1,000 characters for free, and up to 5,000 characters after registration!

Next, select the type of voice.

For Japanese, you can choose from 16 types of voices.

Please see this article where you can listen to sample audio.

Listen to 16 types of voices from the text-to-speech software Ondoku for free. Change impressions with pitch adjustments | Text-to-speech software Ondoku

Ondoku has 16 types of Japanese voices. Of course, both male and female voices are available. We have made it possible to listen to 8 commonly used Japanese voices and their variations when the pitch is adjusted.

Reading speed and pitch can also be easily adjusted using sliders.

With this, the settings are complete.

Click or tap the "Read aloud" button.

The speech synthesis process is completed in just a few seconds.

The display changes, and the synthesized audio will play.

Check the audio, and if there are no problems, save it as an MP3 file using the "Download" button.

This completes the flow of synthesizing speech for free with Ondoku.

In this way, anyone can easily read text aloud with the free speech synthesis site Ondoku!

Since it can be used for free, why not start by synthesizing audio yourself using Ondoku?

What are the Points for Synthesizing More Natural Speech with Ondoku?

By refining a few points, you can create even more natural speech with Ondoku!

First, adjusting the reading speed.

For general explanations, the standard speed is effective, while for important content, setting it slightly slower can be more impactful.

Also, with Ondoku, it is possible to be creative with the way you handle pauses.

The rhythm of the reading changes depending on the position of punctuation marks.

If you want to create natural timing, refining where you break the text is also a key point.

This article explains how to adjust pauses, so please check it out!

How to adjust pauses and blank time in Ondoku reading [2 types] | Text-to-speech software Ondoku

One of the needs of Ondoku users is to "make the pause a little longer." For adjustments of "pauses" to leave a bit of a gap, there are two types of adjustment methods: 1. Punctuation and 2. SSML.

With Ondoku, You Can Easily Synthesize Speech on Smartphones and Tablets!

With the free speech synthesis site Ondoku, it is usable on iPhone, iPad, Android smartphones, and tablets just like on a PC!

The method for using it on a smartphone is basically the same as on a computer.

Just by opening the Ondoku top page in your smartphone's browser, you can easily synthesize speech for free.

If you download the synthesized audio to your smartphone, you can also use it in Instagram or TikTok videos.

When creating audio on a smartphone or tablet, the free speech synthesis site Ondoku is recommended.

[Ondoku] How to make it easily accessible from the home screen like an app on iPhone [No installation required] | Text-to-speech software Ondoku

I want to make a web browser like Ondoku easily accessible from the home screen like an iPhone app. In such cases, use Safari's "Add to Home Screen" or shortcuts. We explain how to do it with videos and images.

Explanation of Points to Keep in Mind When Choosing a Free Speech Synthesis Site

We will explain in detail the points to avoid failure when choosing a speech synthesis site!

Choose a Free Speech Synthesis Site That Fits Your Purpose

When choosing a speech synthesis site, it is important to select one according to your purpose.

For video production purposes, an AI speech synthesis site capable of high-quality reading is recommended.

Using Ondoku, you can create easy-to-hear audio with natural intonation, giving a good impression to viewers.

When you want to create Yukkuri videos, a speech synthesis site specialized for that purpose, like "ゆくも！", is ideal.

Also, when using it for language learning, choose a speech synthesis site that supports multiple languages.

Ondoku supports more than 48 languages, so you can easily create materials for pronunciation practice, listening, and shadowing.

[Ondoku] Listen to voice types and sample audio for supported languages | Text-to-speech software Ondoku

Here, we introduce the supported languages and sample voices of Ondoku.

What is important for business purposes is choosing a speech synthesis site that allows commercial use.

By using a speech synthesis site that can be used commercially for free, you can synthesize high-quality, professional speech while keeping costs down.

Speech synthesis sites that are commercial use OK are also safe when you want to monetize YouTube.

Recommended Comparison Points for Free Speech Synthesis Sites

When comparing speech synthesis sites, the most important thing to emphasize is the naturalness of the speech.

Speech synthesis sites utilizing the latest AI technology can read aloud with natural, human-like voices.

It is also recommended to listen to samples on the website to choose.

Listen to 16 types of voices from the text-to-speech software Ondoku for free. Change impressions with pitch adjustments | Text-to-speech software Ondoku

Ondoku has 16 types of Japanese voices. Of course, both male and female voices are available. We have made it possible to listen to 8 commonly used Japanese voices and their variations when the pitch is adjusted.

Whether it can be used commercially is also, of course, important.

Among free speech synthesis sites, there are sites that allow commercial use and those that do not.

To avoid a situation where "I went through the trouble of making a video, but the narration voice was not allowed for commercial use," it is recommended to confirm that commercial use is allowed before using it.

What you can do with Ondoku. About commercial use (business use) and prohibited items. | Text-to-speech software Ondoku

Commercial use (business use) is possible with Ondoku. Whether individual or corporate, use for the purpose of obtaining direct or indirect financial profit is considered commercial use. However, please note that Ondoku has established prohibited acts. This time, we will introduce what you can and cannot do with Ondoku.

What to Keep in Mind When Commercially Using a Free Speech Synthesis Site

When commercially using a free speech synthesis site, it is also important to understand what kind of uses fall under commercial use.

Generally, monetization of YouTube videos falls under commercial use.

In addition, other monetization features such as memberships and Super Chats are almost always included in the scope of commercial use.

Even for channels operated by individuals, monetization is considered commercial use.

Of course, when a corporation uses a free speech synthesis site, it is considered commercial use.

When using it for corporate promotion videos or product description videos, check if commercial use is permitted.

Conditions for commercial use vary greatly depending on the site.

With Ondoku, even when using it for free, commercial use is OK by providing credit.

(For details on how to credit Ondoku, please see here)

How to credit Ondoku. Practical examples and precautions for notation. | Text-to-speech software Ondoku

We are more than happy for you to use Ondoku for free. However, if you use it for free, credit notation is mandatory. We have received questions like, "So, specifically how should I write the notation?" This time, we will explain how to write credit notation when using Ondoku for free.

When commercially using a free speech synthesis site, be sure to use it in accordance with the terms of use.

Why Not Conveniently Read Text Aloud with a Free Speech Synthesis Site?

In this article, we introduced recommended free speech synthesis sites that are easy to use without installation.

The six speech synthesis sites introduced this time each have different characteristics.

If you seek high-quality AI voices, Ondoku is best, and for Yukkuri videos, "ゆくも！" is ideal.

Even among speech synthesis sites that can be used for free, it is important to choose the best service according to your purpose.

For beginners, we recommend starting with the free speech synthesis site Ondoku, which anyone can easily use.

Ondoku allows you to read up to 5,000 characters for free.

Commercial use is also OK, so you can utilize it for various purposes such as video narration, guidance broadcasts, and call centers.

First, why don't you experience a free speech synthesis site for yourself?

■ 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