[2026] Top 5 Free AI Text-to-Speech Sites: A Complete Guide

I want to find a speech synthesis site that I can use for free!

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

There are many situations where you might need audio narration, such as video production, presentation materials, or language learning.

However, recording it yourself can be surprisingly difficult.

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

With the advancement of AI technology, it is now possible to easily create natural audio that sounds just like a real human is speaking.

Moreover, sites that can be used for free have also appeared!

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 try using a recommended speech synthesis site based on this article?

[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 that uses the latest AI technology.

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

The biggest attraction is that you can easily generate high-quality audio simply by entering text.

You can read aloud in clear, easy-to-hear voices with a wide variety of options including women, men, and children.

Moreover, Ondoku is free!

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

Since commercial use is OK, it is safe to use for video monetization or business purposes.

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

Basic Knowledge of Speech Synthesis Sites. What are the Features of Free Reading Methods?

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

Speech Synthesis Sites Allow You to Read Text for Free

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

Simply by entering the text you want to read, you can synthesize easy-to-hear audio files that sound as if a human were reading them.

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

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

Right now, free speech synthesis sites are highly recommended.

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

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

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 benefits.

First, they are easy to use because no installation is required.

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

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

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

Since processing using AI technology is done in the cloud, even old computers can utilize the latest speech synthesis technology.

Low cost is another feature of speech synthesis sites.

Tasks that would cost tens of thousands of yen if requested from a professional narrator can be completed for free with a free speech synthesis site.

Furthermore, it is possible to use the synthesized audio files for commercial purposes.

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

Methods for AI speech synthesis include speech synthesis sites used in a browser and speech synthesis software installed on a computer.

We recommend speech synthesis sites used in a browser!

The biggest attraction is the ease of being able to start using it 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, a high-performance computer is required to perform high-quality speech synthesis utilizing AI technology.

Additionally, many installation-based speech synthesis programs are paid software that cannot be used without purchasing a package.

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

For these people, free speech synthesis sites are recommended.

[Free] 5 Recommended Free Speech Synthesis Sites + α

I want to know the recommended speech synthesis sites!

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

1. Ondoku
2. TTSMaker
3. ttsMP3.com
4. Narakeet
5. TTSFree

1. Ondoku | The Highest Quality Recommended Free AI Speech Synthesis Site

Ondoku is a free speech synthesis site recommended for those who want to create audio narration.

The biggest feature is that it can read aloud with natural audio utilizing the latest AI technology.

A wealth of voices, including women, men, and children, are available, allowing you to choose the best voice for your purpose.

Listen to 16 types of Ondoku voices for free. Change impressions by adjusting pitch

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 how they sound when their pitch is adjusted.

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

Since it is also equipped with a conversation function, you can also create dialogue-style audio using multiple voices.

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

Free for Commercial Use. Recommended for Monetization and Business Use

Ondoku is OK for commercial use for free.

It is safe to use when you want to monetize on video sites like YouTube, or when using it for business purposes such as announcements or call centers.

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

What you can do with Ondoku. Commercial use (business use) and prohibited acts.

Commercial use (business use) is possible with Ondoku. Use for the purpose of obtaining direct or indirect monetary profit, regardless of whether you are an individual or a corporation, is considered commercial use. However, please note that prohibited acts are established in Ondoku. This time, we will cover what you can and cannot do with Ondoku...

Ondoku is a Free AI Speech Synthesis Site That Can Be Used for Free

Moreover, Ondoku is free!

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

It can be used immediately from a browser without installation, so why not experience Ondoku's AI speech synthesis for yourself first?

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

TTSMaker is a speech synthesis site attractive for its multiple functions.

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

Fine parameter adjustments such as voice speed, pitch, and volume 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 when creating audio for foreign audiences.

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

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

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

It also supports SSML, allowing for detailed pronunciation adjustments.

Also, as the site name suggests, files can be downloaded in MP3 format.

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

4. Narakeet | A Speech Synthesis Site Strong for Education and Presentation Purposes

Narakeet is a speech synthesis site strong for purposes such as education and presentations.

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

It is a speech synthesis site that can be used for free, but it has functional limitations.

It is a convenient speech synthesis site when you want to produce multi-language content for overseas audiences.

5. TTSFree | A Simple Speech Synthesis Site

TTSFree is a speech synthesis site attractive for 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.

The created audio can be downloaded in MP3 format.

【Currently Inaccessible】Yukumo! | A Speech Synthesis Site Where You Can Use Yukkuri Voices

"Yukumo!" has remained inaccessible since late July 2026.

*The following content is from before it became inaccessible (until July 2026).

Yukumo! is a speech synthesis site specialized in Yukkuri voices.

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

[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 for Free on the Free Speech Synthesis Site Ondoku

It is very easy to synthesize audio from text on the free speech synthesis site Ondoku.

First, access the official Ondoku website in your browser.

Once you open the top page, enter the text you want to read in 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.

In the case of Japanese, you can choose from 16 types of voices.

You can listen to the voices in this article, so please take a look.

Listen to 16 types of Ondoku voices for free. Change impressions by adjusting pitch

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 how they sound when their pitch is adjusted.

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

Now the settings are complete.

Click or tap the "Read Aloud" button.

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

The display switches, and the read-aloud audio is played back.

If there are no problems after checking the audio, save it as an MP3 file using the "Download" button.

This completes the flow of synthesizing audio for free on 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 don't you try synthesizing audio using Ondoku first?

Points for Synthesizing More Natural Audio with Ondoku

By making a few adjustments, you can create even more natural audio with Ondoku!

First, adjust the reading speed.

It is effective to set the standard speed for general explanations and a slightly slower speed for important content.

Also, with Ondoku, it is possible to adjust the timing of pauses.

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

If you want to create natural pauses, adjusting the division of sentences is also a key point.

This article explains how to adjust pauses, so please take a look!

How to adjust pauses and blank time in Ondoku reading [2 types]

One of the needs of Ondoku users is "to have a little more pause." To adjust "pauses," there are two types of adjustment methods: 1. Punctuation marks and 2. SSML.

Ondoku Allows Easy Speech Synthesis on Smartphones and Tablets!

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

The method of use on a smartphone is basically the same as on a computer.

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

By downloading the read-aloud audio to your smartphone, you can also use it in Instagram or TikTok videos.

If you want to create 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]

I want to access a web browser like Ondoku easily from the home screen like an iPhone app. In such cases, use Safari's "Add to Home Screen" or a shortcut. We will 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!

Select a Free Speech Synthesis Site That Fits Your Purpose

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

For video production purposes, a high-quality AI speech synthesis site is recommended.

By using Ondoku, you can create easy-to-hear audio with natural intonation and give a good impression to viewers.

When you want to create Yukkuri videos, choose software that supports Yukkuri voices.

For software that supports Yukkuri voices, please see this article: "[2026 Latest] 5 Recommended Yukkuri Voice/Monotone Software | Complete Comparison of PC and Smartphone Apps."

Also, when using it for language learning, choose a multi-language speech synthesis site.

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 of supported languages

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

What is important for business purposes is to choose 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 and professional audio while keeping costs down.

Speech synthesis sites that allow commercial use 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 is the naturalness of the audio.

Speech synthesis sites that utilize the latest AI technology can read aloud with natural voices just like humans.

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

Listen to 16 types of Ondoku voices for free. Change impressions by adjusting pitch

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 how they sound when their pitch is adjusted.

Whether or not it can be used commercially is also, of course, important.

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

To avoid a situation like "I took the trouble to make a video, but the narration audio was not for commercial use," it is recommended to use it after confirming that it can be used commercially.

What you can do with Ondoku. Commercial use (business use) and prohibited acts.

Commercial use (business use) is possible with Ondoku. Use for the purpose of obtaining direct or indirect monetary profit, regardless of whether you are an individual or a corporation, is considered commercial use. However, please note that prohibited acts are established in Ondoku. This time, we will cover what you can and cannot do with Ondoku...

What to Watch Out for When Using Free Speech Synthesis Sites for Commercial Purposes

When using a free speech synthesis site for commercial purposes, it is also important to understand what kind of use falls under commercial use.

In general, monetization of YouTube videos falls under commercial use.

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

Even for channels operated by individuals, monetization constitutes commercial use.

Of course, when a corporation uses a free speech synthesis site, it is for 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.

Ondoku is OK for commercial use even when used for free, provided that credit is given.

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

How to write credit notation for Ondoku. Examples and precautions.

We welcome you to use Ondoku for free. However, if you use it for free, credit notation is mandatory. We have received questions like, "Specifically, how should I write it?" This time, we will explain how to write credit notation for free use of Ondoku...

When using a free speech synthesis site for commercial purposes, be careful to use it according to the terms of use.

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

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

Each of the five speech synthesis sites introduced this time has different characteristics.

If you are looking for high-quality AI audio, Ondoku is the most suitable.

Even with free speech synthesis sites, it is important to choose the best service according to your purpose.

For beginners, it is recommended to start with the free speech synthesis site Ondoku, which anyone can easily use.

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

Since commercial use is also OK, it can be utilized for various purposes such as video narration, information broadcasting, and call centers.

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