[2025 Update] 6 Recommended Speech Synthesis Sites! A Complete Guide to Free AI Text-to-Speech Services

I want to know about free voice synthesis sites!

A free speech synthesis site that converts text into natural speech is gaining attention!

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

But recording yourself can be surprisingly difficult.

In such cases, a free voice synthesis site comes in handy.

Advances in AI technology have made it easier to create natural-sounding voices that sound just like real people speaking.

What's more, there are now sites that you can use for free !

In this article, we will introduce a carefully selected list of recommended voice synthesis sites .

From free services to high-quality sites that utilize AI technology, why not use this article as a reference and try out some of the recommended voice synthesis sites?

[Free] Recommended AI speech synthesis sites that you can use for free right now

If you are looking for a voice synthesis site, we recommend "Ondoku" .

"Ondoku" is a free voice synthesis site that uses the latest AI technology .

No installation is required and it can be used immediately from your browser.

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

It comes with a variety of voices, including female, male, and child voices, and reads in a clear, easy-to-listen voice.

What's more, "Ondoku" is free!

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

Commercial use is allowed, so you can rest assured even if you want to monetize your videos or use them for business purposes.

If you're not sure which voice synthesis site to use, why not try "Ondoku" first?

Basic knowledge of speech synthesis sites. What are the features of free text-to-speech methods?

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

Text-to-speech sites allow you to read text aloud for free

A text-to-speech site is a web service that automatically converts input text into speech .

Simply enter the text you want to read aloud and you can synthesize an easy-to-listen audio file that sounds just like it was read by a human.

The synthesized voice file can be downloaded in formats such as MP3 .

Previous voice synthesis technology could only synthesize mechanical voices, but now, with the latest AI technology , it is possible to synthesize natural, human-like voices .

What I particularly recommend right now is a free voice synthesis site.

You can synthesize high-quality voice for free by using a speech synthesis site that can be accessed from your browser.

Since speech synthesis sites perform the reading process on the cloud, you can take advantage of the latest AI speech synthesis technology regardless of the performance of your computer .

Tasks that previously required the assistance of a narrator can now be completed instantly using a voice synthesis site.

What are the benefits of free speech synthesis sites?

There are many benefits to using free speech synthesis sites.

First of all, it's easy to use and requires no installation .

As long as you have a browser, you can instantly access the text-to-speech site from any device .

The latest AI allows you to synthesize voice from any environment, including Windows, Mac, Linux, iPhone (iOS), and Android.

Another major advantage of free speech synthesis sites is that they do not require a high-performance computer .

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

Another feature of speech synthesis sites is their low cost .

A task that would cost tens of thousands of yen if you were to hire a professional narrator can be completed for free using a free voice synthesis site.

Moreover, the synthesized voice files can be used for commercial purposes .

What is the difference between browser-based and installed versions?

There are two ways to synthesize speech using AI: using a speech synthesis website in your browser, or using speech synthesis software that you install on your computer.

We recommend a text-to-speech site that can be used in your browser!

Its greatest appeal is its ease of use, allowing you to start using it immediately on any PC or smartphone .

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

A feature of installed speech synthesis software is that it can be used in offline environments.

However, to use AI technology to generate high-quality voice synthesis, a high-performance computer is required.

In addition, many of the voice synthesis software that you install and use are paid software that you can only use by purchasing a package.

• Beginners
• Those who want to try out voice synthesis easily
• Those who want to create audio right away

We recommend using a free voice synthesis site .

[Free] 6 Recommended Free Text-to-Speech Sites

I'd like to know some recommended speech synthesis sites!

Now, let's take a closer look at some recommended voice synthesis sites!

1. Ondoku
2. TTSMaker
3. ttsMP3.com
4. Let's go!
5. Narakeet
6. TTSFree

"Ondoku" | The best free AI voice synthesis site

"Ondoku" is a free speech synthesis site recommended for those who want to create their own reading audio.

Its biggest feature is that it can read aloud in a natural voice using the latest AI technology .

A wide variety of voices are available, including female, male, and child voices, so you can choose the best voice for your needs.

Try out 16 voices from the text-to-speech software Ondoku for free. Change your impression by changing the pitch | Text-to-speech software Ondoku

Ondoku has 16 different Japanese voices, including both male and female voices. You can also listen to 8 commonly used Japanese voices and the voices with the pitch adjusted.

In addition, voice synthesis is possible in multiple languages, including English, French, German, Chinese, and Korean.

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

You can also change the pitch and speed of the voice , and make adjustments using SSML (Speech Synthesis Markup Language) tags .

Free for commercial use. Recommended for monetization and business use.

"Ondoku" is free and can be used for commercial purposes.

It's great for monetizing video sites like YouTube, or for business use such as announcements or call centers.

For more information 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

Ondoku allows commercial use (business use). Whether used by an individual or a corporation, any use for the purpose of directly or indirectly obtaining monetary or other benefits is considered commercial use. However, please note that Ondoku has established prohibited activities. In this article, we will introduce what you can and cannot do with Ondoku.

"Ondoku" is a free AI voice synthesis site

What's more, "Ondoku" is free!

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

No installation is required and you can use it immediately from your browser, so why not try out Ondoku 's AI voice synthesis first?

TTSMaker | Global, multi-functional speech synthesis site

TTSMaker is a speech synthesis site with many attractive features.

It supports multiple languages, making it suitable for global content production .

You can also adjust detailed parameters such as audio speed, pitch, and volume.

The free version has limitations, but basic speech synthesis is available for free.

This is a recommended speech synthesis site when creating audio for foreign audiences.

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, and child voices.

It also supports SSML, allowing for fine-tuning of pronunciation.

As the site name suggests, you can also download files in MP3 format .

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

Yukumo! | A voice synthesis site that uses Yukkuri Voice

Yukumo! is a voice synthesis site specializing in Yukkuri voices .

It uses a speech synthesis engine called AquesTalk, and can read aloud in a distinctive "yukkuri voice" (a monotone voice) .

Ideal for creating audio for the popular "Yukkuri Commentary" and "Yukkuri Live Commentary" videos on YouTube and Niconico Video.

This is a voice synthesis site that can be used from your browser without installation, so it is recommended for those who want to easily create slow-paced videos.

This is a free speech synthesis site, but care should be taken when using it for commercial purposes.

It is free for personal non-commercial use, but commercial use requires the purchase of a license.

Narakeet | A speech synthesis site for education and presentations

Narakeet is a speech synthesis site that is ideal for applications such as education and presentations .

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

This is a free speech synthesis site, but it has limited functionality.

This is a convenient voice synthesis site for creating content for overseas audiences or in multiple languages.

TTSFree | Simple text-to-speech site

TTSFree is a speech synthesis site that excels in its simplicity .

The intuitive interface makes it easy to use even if you are not familiar with speech synthesis sites.

Supports major languages including Japanese and English.

The audio you create can be downloaded in MP3 format.

[Free] Detailed explanation of how to use free speech synthesis sites

How do I use a free text-to-speech website? Is it easy to use?

From here, we will explain how to use free voice synthesis sites using ``Ondoku'' as an example!

How to read text aloud using the free speech synthesis site "Ondoku"

It's very easy to synthesize speech from text using the free speech synthesis site "Ondoku."

First, access the official website of "Ondoku" in your browser.

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

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

Next, select the audio type.

For Japanese, you can choose from 16 different voices.

You can listen to the audio of the article being read aloud, so please take a look.

Try out 16 voices from the text-to-speech software Ondoku for free. Change your impression by changing the pitch | Text-to-speech software Ondoku

Ondoku has 16 different Japanese voices, including both male and female voices. You can also listen to 8 commonly used Japanese voices and the voices with the pitch adjusted.

The reading speed and pitch can also be easily adjusted using the slider.

The setup is now complete.

Click or tap the "Read Aloud" button.

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

The display will change and the reading audio will play.

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

This completes the process of synthesizing voice for free with "Ondoku."

As you can see, anyone can easily read text aloud using the free speech synthesis site "Ondoku" !

It's free to use , so why not try synthesizing voice using "Ondoku" ?

What is the key to synthesizing more natural voices with "Ondoku"?

By paying attention to a few points, you can create even more natural voices 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.

In addition, "Ondoku" allows you to be creative with how you maintain your distance .

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

If you want to create a natural sense of space, it's important to think carefully about how you break up sentences .

This article explains how to adjust the distance, so be sure to check it out!

How to adjust pauses and blank times when reading from a text using Ondoku [2 ways] | Ondoku Text-to-Speech Software

One of the needs of Ondoku users is "I want to leave a little more space between words." If you want to adjust the "space" to leave a little more space between words, there are two ways to do it: 1. Punctuation 2. SSML.

With "Ondoku" you can easily synthesize voice on your smartphone or tablet!

The free speech synthesis site "Ondoku" can be used on iPhones, iPads, Android smartphones and tablets just like on PCs!

The way to use it on a smartphone is basically the same as on a computer.

Simply open the "Ondoku" homepage in your smartphone browser and you can easily synthesize voice for free.

You can download the audio to your smartphone and use it in videos on Instagram or TikTok.

If you want to create audio on your smartphone or tablet, we recommend the free voice synthesis site "Ondoku."

[Ondoku] How to easily use Ondoku text-to-speech software on your iPhone from the home screen like an app [No installation required]

I want to be able to access a web browser like Ondoku from the home screen as easily as an iPhone app. In that case, I can use Safari's "Add to Home Screen" feature or a shortcut. I'll explain how to do this with videos and images.

Explaining points to keep in mind when choosing a free speech synthesis site

We will explain in detail the points to consider when choosing a voice synthesis site!

Choose a free speech synthesis site that suits your needs

When choosing a speech synthesis site, it is important to choose one that suits your needs .

For video production purposes , we recommend an AI speech synthesis site that can provide high-quality reading .

With Ondoku , you can create natural, easy-to-listen voices that will leave a good impression on your audience.

If you want to create a slow-motion video, a specialized voice synthesis site like "Yukumo!" is ideal.

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

Ondoku supports 48 languages, making it easy to create materials for pronunciation practice, listening, and shadowing.

[Ondoku] Listen to the voices and sample audio for supported languages | Text-to-Speech Software Ondoku

Here we will introduce Ondoku's supported languages and sample audio.

For business use , it is important to choose a speech synthesis site that can be used commercially .

By using free, commercially available speech synthesis sites, you can synthesize high-quality, professional speech at a low cost.

A voice synthesis site that allows commercial use is a safe option if you want to monetize your YouTube channel .

Recommended comparison points for free speech synthesis sites

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

A speech synthesis site that uses the latest AI technology can read aloud in a natural, human-like voice.

We also recommend listening to the samples on the website before making your selection .

Try out 16 voices from the text-to-speech software Ondoku for free. Change your impression by changing the pitch | Text-to-speech software Ondoku

Ondoku has 16 different Japanese voices, including both male and female voices. You can also listen to 8 commonly used Japanese voices and the voices with the pitch adjusted.

Of course, whether it can be used commercially is also important.

Among free speech synthesis sites, some allow commercial use and others do not.

To avoid the situation where you go to the effort of creating a video only to find out that the narration audio is not allowed for commercial use, we recommend that you confirm that it can be used commercially before using it .

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

Ondoku allows commercial use (business use). Whether used by an individual or a corporation, any use for the purpose of directly or indirectly obtaining monetary or other benefits is considered commercial use. However, please note that Ondoku has established prohibited activities. In this article, we will introduce what you can and cannot do with Ondoku.

Things to be aware of when using free speech synthesis sites for commercial purposes

When using a free speech synthesis site for commercial purposes, it is important to understand what uses constitute commercial use .

Generally speaking, monetizing YouTube videos falls under commercial use .

In addition, other monetization features such as memberships and super chats are often included in the scope of commercial use.

Even if you run your own channel, monetizing it is considered commercial use.

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

When using it for a company's promotional video or product description video, make sure that commercial use is permitted.

Terms of commercial use vary widely from site to site.

Even if you use "Ondoku" for free , you can use it for commercial purposes by crediting it.

(For more information on how to credit "Ondoku" , please click here.)

How to credit Ondoku. Examples and points to note. | Text-to-speech software Ondoku

You are welcome to use Ondoku for free. However, if you use it for free, you must give credit. We have also received questions such as, "So, how exactly should I give credit?" In this article, we will explain how to give credit when using Ondoku for free.

When using a free speech synthesis site for commercial purposes, be sure to follow the terms of use.

Why not try using a free speech synthesis site to conveniently read text aloud?

In this article, we have introduced some recommended free speech synthesis sites that are easy to use and do not require installation.

Each of the six speech synthesis sites introduced here has its own unique features.

If you're looking for high-quality AI audio , "Ondoku" is the best choice, and if you're looking for slow-motion videos, "Yukumo!" is the best choice.

Even with free speech synthesis sites, it's important to choose the best service for your needs.

For beginners , we recommend starting with "Ondoku," a free voice synthesis site that anyone can use easily .

"Ondoku" can read up to 5,000 characters for free .

Commercial use is also allowed, so it can be used for a variety of purposes, such as video narration, announcements, and call centers.

Why not try out a free speech synthesis site for free?

■ 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