15 Recommended Text-to-Speech Software and Sites! Introducing free speech and voice synthesis methods

Jan. 26, 2026

15 Recommended Text-to-Speech Software and Sites! Introducing free speech and voice synthesis methods

I want to know about software and sites that can automatically vocalize and read text aloud!
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By using text-to-speech software and sites, you can vocalize and read aloud text displayed on your PC or smartphone.

Text-to-speech technology is advancing rapidly, making it easy for anyone to use services with high-quality vocalization.

Since there are also services available for free, you can use software and sites that vocalize automatically for a wide range of purposes, such as:

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

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

If you are unsure about which method to use for automatically vocalizing and reading text, why not start by using the recommended software and sites introduced in this article?

【Free Vocalization Available】Recommended Text-to-Speech Sites

A service we recommend for those looking for text-to-speech software or sites is 『Ondoku』.

Ondoku

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

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

Furthermore, 『Ondoku』 allows for reading aloud for free!

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

You can vocalize and read text for free up to these limits, allowing you to easily convert text into speech using the latest AI right away.

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

What are Software and Sites that Automatically Vocalize and Read Speech?

To automatically vocalize and read content based on text, we recommend using text-to-speech software or sites.

Using these tools allows you to convert text into speech with higher quality and more easily than a human vocalizing and reading aloud.

Benefits of Using Text-to-Speech Software and Sites

Benefits of using reading software and sites

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

Information becomes easier to convey

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

For example:

  • Increasing view counts by adding clear narration to commentary videos
  • Improving service through automatic broadcasts in stores or facilities

Text-to-speech software and sites are useful for a wide range of applications, from personal use to corporate and organizational use.

High Cost Performance

High cost performance

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

However, requesting a professional narrator or voice actor to read aloud incurs very high fees.

While reading it yourself is an option, speech recorded by a non-professional is typically unclear and very difficult to listen to.

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

In contrast, reading software and sites that vocalize using the latest AI offer:

  • Low cost (some software and sites are even free)
  • Professional-level clarity and quality
  • No need for subsequent editing

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

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

Improved Accessibility

Improved accessibility

Reading text aloud to create speech can improve accessibility.

By adding a reading function, people with low vision or the elderly can browse websites more easily.

Additionally, adding narration to videos posted on sites like YouTube allows for the use of automatic subtitles, which means users from abroad can also watch the videos using the automatic translation function.

As shown, there are many benefits to software and sites that automatically vocalize and read text.

To read text aloud and convert it to speech, using software or sites that utilize the latest AI is recommended.

15 Recommended Vocalization and Text-to-Speech Software and Sites

Here are some recommended software and sites that can automatically vocalize and read text for you.

There are also vocalization software and sites that can be used for free, so why not experience text-to-speech for yourself first?

1. Ondoku

Ondoku

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

Since it is a website-based service used from a browser, it works in any environment, including PCs, smartphones, and tablets.

Usage is very simple: just enter text on this page and press "Read".

Anyone can easily and without hesitation convert text to speech right now.

Reading with 16 types of voices

16 types of voices

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

Because it vocalizes using the latest AI, the vocalization is very realistic, unlike older text-to-speech software.

You can generate audio that sounds as if a human is actually reading it aloud.

Supports reading in foreign languages

Foreign language support

『Ondoku』 supports 48 languages, including Japanese and English.

It is also easy to add foreign language narration to videos being uploaded to sites like YouTube.

Can also generate conversation-like audio

Generate like a conversation

Furthermore, 『Ondoku』 can use multiple voices to create conversation-like audio!

The audio read aloud can be downloaded directly.

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

A reading service that can be used for free

Moreover, 『Ondoku』 can be used for free!

You can perform text-to-speech for up to 1,000 characters without registration/login, and up to 5,000 characters if you register, all for free.

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

If you are looking for a text-to-speech software or service that can vocalize for free, why not try using 『Ondoku』 first?

2. SofTalk

SofTalk

SofTalk is a free text-to-speech software for Windows.

It can vocalize using:

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

Previously, it also supported AquesTalk (robot voice, yukkuri voice), but it became unsupported due to licensing issues.

The software itself is available for commercial use, but it is necessary to be careful as one must also follow the terms of use for the voice sound sources during commercial use.

3. テキストーク

テキストーク

テキストーク is a simple text-to-speech software for Windows.

It can vocalize using:

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

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

4. A.I.VOICE

A.I.VOICE

A.I.VOICE is software for individuals using the speech synthesis engine "A.I.Talk".

It is compatible with Windows and Mac.

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

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

It is recommended for those who want to vocalize using popular character voices.

A.I.VOICE 2 Complete Guide! Detailed explanation of features, installation, and usage of the successor software to VOICEROID | Text-to-speech software Ondoku

A.I.VOICE 2 Complete Guide! Detailed explanation of features, installation, and usage of the successor software to VOICEROID | Text-to-speech software Ondoku

Explaining the features and usage of A.I.VOICE 2, where you can use Kotonoha Akane/Aoi and Yuzuki Yukari, familiar from VOICEROID videos. Detailed introduction from installation methods to audio export.

5. AITalk

AITalk

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

  • 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 needs are available.

Usage requires an inquiry and a quote.

6. コエステーション

コエステーション

コエステーション is an AI service that allows the use of synthetic speech based on the voices of actual humans.

This is a service from AI Inc., which also develops A.I.VOICE and AITalk, and voices of celebrities such as announcers, artists, and comedians are available.

7. CeVIO

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 a starter set (voice + editor) priced from approximately 12,000 yen.

Compatible OS is Windows only; Mac is not supported.

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

8. VOICEVOX

VOICEVOX

VOICEVOX is text-to-speech software capable of vocalizing using AI.

It is compatible with Windows, Mac, and Linux.

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

The software itself is free for both commercial and non-commercial use, but caution is needed as one must also follow the terms of use for each character when using it commercially.

9. COEIROINK

COEIROINK

COEIROINK is text-to-speech software compatible with Windows and Mac.

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

Commercial use is possible, but credit is mandatory when using it.

Additionally, the terms of use vary by character, so it is important to check the terms beforehand, especially for commercial use.

What is COEIROINK? Thorough explanation of features, usage, and commercial use of speech synthesis software | Text-to-speech software Ondoku

What is COEIROINK? Thorough explanation of features, usage, and commercial use of speech synthesis software | Text-to-speech software Ondoku

A complete guide to the features and usage of COEIROINK. We provide a detailed explanation from how to install the speech synthesis software to adding character voices and precautions for commercial use.

10. 棒読みちゃん

Bouyomichan

棒読みちゃん is text-to-speech software for Windows using the AquesTalk speech synthesis engine, and can vocalize in the so-called "yukkuri voice."

It is available for free download, and because it uses an older version of AquesTalk, commercial use is also possible for free.

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

11. AquesTalkPlayer

AquesTalkPlayer

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

It is compatible with Windows.

Three types of speech synthesis engines are available:

  • AquesTalk1
  • AquesTalk2
  • AquesTalk10

It also supports robot-like monotone voices.

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

12. テキスト音声変換 - Text to voice

Text to voice conversion - Text to voice

テキスト音声変換 - Text to voice is a reading site used from a browser.

Since it is a service used via a browser, no installation is required, and vocalization and saving are possible for free.

While easy to use, caution is needed as the operator is not explicitly identified.

13. スピーチエディタ

Speech Editor

スピーチエディタ 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

CoeFont is a reading tool that allows for easy generation of AI voices.

Primarily a service for corporations, it allows you to vocalize with the voices of many famous people, including actors, voice actors, and narrators.

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

15. ReadSpeaker

ReadSpeaker

ReadSpeaker is a reading service primarily provided for corporations.

It has a track record of implementation in diverse fields such as digital signage, chatbots, automatic telephone answering, and cash register terminals, and can be customized for specific business operations.

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

■ 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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