15 Best Text-to-Speech Software & Sites! Free Speech Synthesis Methods

I want to know about software and sites that can automatically vocalize and read aloud!

By using text-to-speech software and sites, you can vocalize and read aloud text displayed on a PC or smartphone.

Text-to-speech technology is advancing rapidly, making high-quality vocalization services easily accessible to everyone.

Since there are also services available for free,

• Adding narration to videos posted on video sites
• Integrating into websites to improve accessibility for people with low vision and the elderly
• Automating telephone answering

you can use reading software and sites that vocalize automatically for a wide range of purposes like these.

In this article, we will introduce recommended text-to-speech and vocalization methods, ranging from software for PCs and smartphones to reading sites that can be easily used in a browser.

If you're unsure how to automatically vocalize and read text, why not start by using the recommended software and sites introduced in this article?

【Vocalization available for free】Recommended text-to-speech sites

A service recommended for those looking for reading software or sites is 『Ondoku』.

『Ondoku』 is a service that can automatically vocalize and read text aloud.

As a web service used by opening a website in a browser, it can be used from various environments, including PCs, smartphones, and tablets.

Furthermore, 『Ondoku』 allows for free reading!

• Without registration/login: 1,000 characters
• With registration/login: 5,000 characters

You can vocalize and read text for free up to these limits, so you can easily turn text into speech using the latest AI right now.

If you are looking for a way to automatically vocalize and read text, why not start by using 『Ondoku』?

What are automatic vocalization and reading software/sites?

To automatically vocalize and read content based on text, we recommend using reading software and sites.

By using reading software and sites, you can convert text to speech with higher quality and more easily than a human vocalizing and reading it aloud.

Benefits of using reading software and sites

There are several benefits to software and sites that vocalize and read based on text.

Information becomes easier to convey

Information that is difficult to convey with text alone becomes easier to understand when vocalized and read aloud.

For example:

• Increasing views by adding easy-to-understand narration to explainer videos
• Improving service with automatic broadcasts in stores and facilities

Reading software and sites are widely useful for everything from personal use to use in companies and organizations.

Realize professional-level in-store broadcasts with automatic voice! Complete guide to AI announcements

Automate in-store broadcasts with AI! With Ondoku, create narrator-level automatic voices for free. Multilingual support ensures perfect inbound measures. Contributes to cost reduction through improved operational efficiency!

High cost performance

When turning text into speech, it is of course possible for a human to vocalize and read it themselves.

However, hiring professional narrators or voice actors to read aloud can be very expensive.

While reading it yourself is an option, audio recorded by non-professionals is usually unclear and very difficult to listen to.

Moreover, if you read it yourself, it takes time and effort to edit out mistakes or stumbles.

In that regard, reading software and sites that use the latest AI to vocalize offer:

• Low cost (with some software and sites available for free)
• Professional-level clear quality
• No need for later editing

In this way, you can convert text to speech more affordably and smoothly than hiring a professional or recording it yourself.

To convert text to speech with good cost performance, using reading software and sites is recommended.

Improving accessibility

You can improve accessibility by reading text aloud and turning it into speech.

By adding a reading function, people with low vision and the elderly will be able to browse websites.

Also, adding narration to videos posted on sites like YouTube enables automatic subtitling, allowing overseas users to watch videos using the automatic translation feature.

How to quickly create narration for videos like YouTube using text-to-speech software. Tips and points

Explaining how to quickly create YouTube video narration with Ondoku. Provides easy-to-understand explanations from how to write a script and use Ondoku to adjusting natural intonation and tips for editing with video software. A must-see for those looking to streamline video production with text-to-speech software!

As described, software and sites that automatically vocalize and read based on text have many benefits.

To read text and turn it into speech, we recommend using software and sites that utilize the latest AI.

15 Recommended Voice Vocalization and Reading Software/Sites

We will introduce recommended software and sites that automatically vocalize and read text for you.

Since there are also vocalization software and sites available for free, why not experience reading aloud for yourself first?

• Ondoku
• SofTalk
• Textalk
• A.I.VOICE
• AITalk
• Coestation
• CeVIO
• VOICEVOX
• COEIROINK
• Bouyomi-chan
• AquesTalkPlayer
• Text-to-Speech - Text to voice
• Speech Editor
• CoeFont
• ReadSpeaker

1. Ondoku

『Ondoku』 is a text-to-speech service using the latest AI that can be used for free.

As a website-based service used through a browser, it can be used from any environment, including PCs, smartphones, and tablets.

It is very easy to use: just enter text from this page and press "Read".

Anyone can easily convert text into speech right now without hesitation.

Reading with 16 types of voices

In 『Ondoku』, 16 types of voices are available for Japanese.

Because it vocalizes using the latest AI, the speech is very realistic compared to previous reading software.

You can generate audio that sounds just like a human is actually reading it.

Try listening to 16 types of Ondoku text-to-speech voices for free. Change impressions with pitch variations

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

Supports reading in foreign languages

『Ondoku』 supports over 80 languages and dialects, including Japanese and English.

It is also easily possible to add foreign language narration to videos uploaded to sites like YouTube.

[Ondoku] Listen to voice types and sample audio for supported languages

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

Can also generate conversation-like audio

Furthermore, 『Ondoku』 can also create conversation-like audio using multiple voices!

The read audio can be downloaded as is.

There is no need for the task of joining audio files together later.

How to use Ondoku's conversation/dialogue function. Make listening materials and long text creation more convenient with speech synthesis!

How to use Ondoku's conversation function! Explaining how to use the conversation function with images. Introducing specific examples of what purposes the conversation function can be used for.

A reading service that can be used for free

What's more, 『Ondoku』 can be used for free!

You can convert up to 1,000 characters without registration/login, and 5,000 characters with registration for free.

Commercial use is also possible for free (Click here for details on commercial use).

If you are looking for reading software or services that can vocalize for free, why not try 『Ondoku』 first?

2. SofTalk

SofTalk is a free reading software for Windows.

• SofTalk original sound sources
• MikoVoice
• SAPI・Speech Platform

can be used to vocalize.

It previously supported AquesTalk (monotone voice, Yukkuri voice), but it is no longer supported due to licensing issues.

The software itself is available for commercial use, but caution is needed as you must also follow the terms of use for the voice sound sources during commercial use.

3. Textalk

Textalk is a simple reading software for Windows.

• OpenJTalk
• Microsoft Haruka Desktop (Japanese)
• Microsoft Zira Desktop (English)

can be used to vocalize.

Since the last update was in 2015 and it is an old software, the vocalization is not as realistic as the latest AI, but being free to use is attractive.

4. A.I.VOICE

A.I.VOICE is individual-oriented software that uses the speech synthesis engine "A.I.Talk".

Compatible with Windows and Mac.

It features many characters previously released as VOICEROID, such as Kotonoha Akane/Aoi, Yuzuki Yukari, and Kizuna Akari.

It is paid software, with a price ranging from approximately 12,000 to 18,000 yen, which is slightly high.

Recommended for those who want to vocalize using popular character voices.

Complete guide to A.I.VOICE2! Detailed explanation of the features, installation, and usage of VOICEROID's successor software

Explaining the features and usage of A.I.VOICE2, where you can use Kotonoha Akane/Aoi and Yuzuki Yukari, familiar from VOICEROID videos. Detailed introduction from installation to audio export.

5. AITalk

The speech synthesis engine "AITalk" offers a wide variety of products for corporate use as well.

• Narration creation software "AITalk Koe no Shokunin"
• Vocalization software for PowerPoint "AITalk Koe Plus"
• Server-installed speech synthesis "AITalk Server"

Products finely tuned to specific applications are available.

Inquiry and quotation are required for use.

6. Coestation

Coestation is an AI service where you can use synthesized voices based on actual human voices.

It is a service by AI Inc., which also develops A.I.VOICE and AITalk, and features voices of celebrities such as announcers, artists, and comedians.

7. CeVIO

CeVIO is a vocalization software primarily provided for individuals.

It features characters famous among creative users, such as Sato Sasara and Suzuki Tsudumi.

It is paid software, with the starter set of Voice + Editor priced from approximately 12,000 yen.

The supported OS is Windows only; Mac is not supported.

Recommended for those who want to create videos or audio works using popular characters.

What is CeVIO AI? Detailed explanation of speech synthesis software features, usage, and commercial use

Complete guide to the AI singing synthesis software CeVIO AI. Explains features of popular characters like Sato Sasara and Suzuki Tsudumi, how to purchase, and precautions for commercial use for beginners.

8. VOICEVOX

VOICEVOX is a reading software capable of vocalizing using AI.

Supports Windows, Mac, and Linux.

You can vocalize using voices of famous characters such as Zundamon, Shikoku Metan, and Kasukabe Tsumugi.

The software itself is free for both commercial and non-commercial use, but caution is needed as you must also follow each character's terms of use for commercial purposes.

Complete guide to using VOICEVOX! Detailed explanation from features of the free AI speech synthesis software to commercial use

Detailed explanation from VOICEVOX's features to usage and precautions for commercial use. A complete guide to the free AI speech synthesis software that can read aloud with popular character voices like Zundamon.

9. COEIROINK

COEIROINK is a reading software compatible with Windows and Mac.

The software itself is free, and you can vocalize using official/authorized character voices and voices posted by users.

Commercial use is possible, but credit is mandatory when used.

Also, since terms of use differ for each character, be sure to check the rules in advance, especially for commercial use.

What is COEIROINK? Thorough explanation of speech synthesis software features, usage, and commercial use

Complete guide to COEIROINK features and usage. Detailed explanation from how to install the speech synthesis software to adding character voices and precautions for commercial use.

10. Bouyomi-chan

Bouyomi-chan is a Windows reading software using the AquesTalk speech synthesis engine, capable of vocalizing in the so-called "Yukkuri voice".

It can be downloaded for free, and because it uses an older version of AquesTalk, it is also available for free commercial use.

Recommended when you want to use a monotone voice (Yukkuri voice).

11. AquesTalkPlayer

AquesTalkPlayer is a reading software officially provided by the developer of the AquesTalk speech synthesis engine.

Supports Windows.

• AquesTalk1
• AquesTalk2
• AquesTalk10

These three types of speech synthesis engines can be used, and it also supports monotone voices.

Download is free, but a license purchase is required for commercial use.

[2026 Latest] 5 Recommended Yukkuri Voice/Monotone Software | Complete Comparison of PC and Smartphone Apps

Carefully selected introduction to Yukkuri voice and monotone software ideal for video production and game commentary. Explaining how anyone can easily create high-quality audio with the latest 2026 apps from PC to smartphone.

12. Text-to-Speech - Text to voice

Text-to-Speech - Text to voice is a reading site used through a browser.

As a service used from a browser, no installation is required, and vocalization and saving are available for free.

It is easy to use, but caution is needed as the operator is not explicitly stated.

13. Speech Editor

Speech Editor is a tool for editing Speech Synthesis Markup Language (SSML).

It uses Microsoft's speech synthesis engine "SAPI5" for vocalization.

It is free software, and it is also possible to generate conversation-like audio using multiple voices.

14. CoeFont

CoeFont is a reading tool that can easily generate AI voices.

It is primarily a service for corporations, allowing vocalization with voices of many celebrities, including actors, voice actors, and narrators.

A function to create a speech synthesis engine based on your own voice is also available.

15. ReadSpeaker

ReadSpeaker is a reading service primarily provided for corporations.

It has a track record of being implemented in various settings such as digital signage, chatbots, automated telephone responses, and cash registers, and can be customized for each business operation.

It has also been introduced for station and on-board broadcasts of Tokyu Railways and Nankai Electric Railway.