14 Best Text-to-Speech Software (2026): Free & Commercial Use Compared

I want to know about text-to-speech software that converts text into audio!

In today's world of increasing digital content, the demand for text-to-speech software that converts text into audio is rapidly growing.

Actually, reading quality has improved dramatically due to the advancement of AI.

An increasing number of software can generate natural speech that sounds like a human talking.

In this article, we will provide a detailed explanation of features, usage methods, and points for choosing between different types of software, ranging from free text-to-speech software to paid software that features character voices.

We also cover commercial use, so it is recommended for those considering utilizing it for business.

Now, let's take a look at text-to-speech software and services one by one.

5 Recommended Text-to-Speech Software You Can Use Instantly in a Web Browser

First, we will introduce text-to-speech software (text-to-speech services) that can be used online from a web browser.

• Ondoku
• TTSFree
• ttsMP3.com
• TTSMaker
• Narakeet

1. Ondoku: High-quality AI for free reading! Recommended reading web service

Ondoku is a text-to-speech software (web service) utilizing the latest AI technology that can be easily used from a browser.

It features intuitive operability, requiring no installation and allowing you to generate high-quality audio just by entering text.

Since you can choose from a variety of voices, you can read aloud with the optimal voice for your purpose.

The greatest feature is that it can be used for free!

Even with the free version, you can read up to 1,000 characters without registration, and up to 5,000 characters after registration.

Commercial use is also possible (credit notation is required for free use), making it suitable for video production and business purposes.

It is packed with fulfilling features that you wouldn't expect for free, such as multilingual support for over 48 languages.

Another key point is the convenience of being accessible from iPhone/iPad (iOS) and Android smartphones as well as PCs, allowing you to generate audio of the same quality on any device.

If you are unsure about which text-to-speech method to use, why not try Ondoku first?

2. TTSFree: Simple online text-to-speech software

TTSFree is a browser-based free text-to-speech software characterized by its simple interface.

Its appeal lies in its ease of use, allowing you to start text-to-speech immediately without complex settings.

It supports major languages including English and Japanese, and uses a voice engine optimized for each language.

The generated audio can be downloaded in MP3 format and used for video production or presentation materials.

It is also convenient because it supports reading long texts.

This software is recommended for beginners who want simple functions and intuitive operation.

3. ttsMP3.com: Multilingual online text-to-speech software

ttsMP3.com is a multilingual browser-based text-to-speech software covering the world's major languages.

It uses Amazon's Polly voice engine, enabling reading with natural intonation and pronunciation.

You can choose the most suitable voice for your purpose from a wide range of voice qualities, including male, female, and children's voices.

The read audio can be downloaded in MP3 format, and file management is easy.

While the free version has a character limit per use, it is fully functional within a practical range.

This is high-performance software that also supports SSML (Speech Synthesis Markup Language) tags, allowing for fine pronunciation adjustments.

It is recommended for those who handle international content or need multilingual text-to-speech audio.

4. TTSMaker: Multi-functional web-based text-to-speech software

TTSMaker is a web-based text-to-speech software equipped with numerous functions.

It features a wide variation, allowing you to choose from over 30 languages and more than 100 types of voices.

Detailed adjustments such as audio speed, pitch, and volume are possible, and customization according to your needs is also available.

The created audio can be downloaded in MP3 format, and the automatic file name generation function is also convenient.

It is recommended for those who seek a variety of voices and detailed adjustment functions.

5. Narakeet: Text-to-speech software that can also be used for education and presentations

Narakeet is a browser-based text-to-speech software.

It is suitable for creating educational content and presentation materials.

Since you can choose from over 50 languages and more than 300 types of voices, it can also support international content.

Although the free version has functional limitations, special plans for educational institutions are also available.

It is a text-to-speech software recommended for educational content creators or those who want to turn presentation materials into audio.

9 Recommended Install-type Text-to-Speech Software

Next, we will introduce text-to-speech software that you install on your PC to use.

• A.I.VOICE
• CeVIO
• VOICEPEAK
• VOICEVOX
• Bouyomi-chan
• SofTalk
• MYukkuriVoice
• COEIROINK
• Textalk

6. A.I.VOICE: Standard text-to-speech software for character voices

A.I.VOICE is high-quality speech synthesis software developed by AI Inc.

As of 2026, the A.I.VOICE2 series is being developed.

It features popular character voices such as "Yuzuki Yukari" and "Kotonoha Akane/Aoi," which were previously known as VOICEROID.

It is compatible with both Windows and Mac and is sold as a one-time purchase paid software.

It has rich emotional expression, and you can finely adjust the strength, pitch, and speed of the reading emotion.

Commercial use by individuals is basically possible by purchasing the product, but corporate use requires a separate license.

It is the ideal software for creating creative audio works and high-quality narrations.

A.I.VOICE2 Complete Guide! Detailed explanation of features, installation methods, 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.

7. CeVIO: Integrated text-to-speech software with singing functions

CeVIO is an audio creation software that combines reading and singing functions.

It features unique and popular character voices such as "Sato Sasara" and "Suzuki Tsudumi."

It is sold as a one-time purchase paid software exclusively for Windows.

Since emotional parameters can be finely adjusted numerically, you can create audio with rich expressiveness.

In addition to "Talk Voice" for reading, "Song Voice" for singing is also sold, allowing you to make characters sing songs.

Commercial use conditions for individual creators are relatively relaxed, but corporate use requires a separate license.

It is a standard paid software that is also highly popular for simulation game commentary, such as flight simulators.

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

A complete guide to the AI singing voice synthesis software CeVIO AI. We explain the characteristics of popular characters like Sato Sasara and Suzuki Tsudumi, how to purchase, and precautions for commercial use for beginners.

8. VOICEPEAK: High-performance text-to-speech software compatible with multiple platforms

VOICEPEAK is a high-quality speech synthesis software characterized by its intuitive operability.

In addition to Windows and Mac, it also supports Linux, which is rare for paid software.

One of the major features is that multiple voices are bundled in the package.

In most packages, in addition to the main character voice, extra voices such as the male voice "Frimomen" are included.

While commercial use rights are included in the basic license, separate terms may apply to character voices.

What is the speech synthesis software VOICEPEAK? Detailed explanation of features and commercial use

Detailed explanation of the characteristics of the speech synthesis software "VOICEPEAK." Also introducing the commercial use terms, which often differ for each character.

9. VOICEVOX: AI text-to-speech software with high-quality character voices

VOICEVOX is a high-quality open-source speech synthesis software that can be used for free.

The biggest feature is that it allows reading with unique character voices such as "Zundamon" and "Shikoku Metan".

It supports major OSs: Windows, Mac, and Linux.

With high-quality speech synthesis based on deep learning technology, it is possible to read with natural intonation and expression.

Fine adjustment functions for intonation and audio parameters are also substantial, allowing for advanced editing.

A GPU-compatible version is also provided, allowing for faster processing on high-performance PCs.

The software itself is free and can be used commercially, but please note that there are terms of use for each character separate from the software itself.

Complete Guide on How to Use VOICEVOX! Detailed explanation from AI free speech synthesis software features to commercial use

Detailed explanation from VOICEVOX 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.

10. Bouyomi-chan: Standard software for streaming

Bouyomi-chan is standard text-to-speech software mainly used for game streaming and live streaming.

It is characterized by the "Yukkuri Voice" using an old version of AquesTalk, which has a distinct personality.

It is a lightweight free software for Windows that runs smoothly even on low-spec PCs.

It has extensive functions for linking with other software and is often used in combination with streaming software such as OBS.

It is also loved as a standard software for "Yukkuri Jikkyou" and "Yukkuri Kaisetsu" on Niconico Douga and YouTube.

Unlike other Yukkuri voice software and services, another feature is that it can be used commercially for free.

11. SofTalk: Long-established software with simple functions

SofTalk is a free text-to-speech software for Windows that has been loved for many years.

It specializes in a simple interface and basic functions, making it easy for even beginners to use.

Multiple speech synthesis engines can be selected, including original voices based on the free speech synthesis engine "UTAU," allowing you to choose the voice according to your purpose.

A major merit is that it is lightweight and runs comfortably even on low-spec PCs.

Although it uses a speech synthesis engine from the Windows 8 era, it still works on Windows 11 as of 2026.

The software itself is free, but please note that if you use it commercially, you may need to check the terms of the speech synthesis engine.

12. MYukkuriVoice: Easy-to-use Yukkuri voice creation software exclusively for Mac

MYukkuriVoice is a software for Mac specialized in creating "Yukkuri Voice."

Developed specifically for macOS, it uses an AquesTalk-based speech synthesis engine and is ideal for creating audio for "Yukkuri Jikkyou" and "Yukkuri Kaisetsu" videos.

It features an interface where you can perform detailed audio adjustments and intonation editing visually.

It is a text-to-speech software recommended for Mac users who want to produce videos using Yukkuri voices.

13. COEIROINK: Open-source software for creation

COEIROINK is an AI speech synthesis software developed for creative activities.

In addition to official and authorized characters, user-created voice models called "MYCOE" can also be used, allowing for reading with a rich variety of voices.

Compatible with Windows, Mac, and Linux, it achieves high-quality character voices.

Detailed intonation and emotional expression can be adjusted, allowing for the creation of expressive audio, so it can be widely used for creative purposes.

It can be used for free and basically commercially, but credit notation is mandatory, and it is necessary to check the terms for each voice model.

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

A complete guide to COEIROINK features and usage. We explain in detail from how to install the speech synthesis software to adding character voices and precautions for commercial use.

14. Textalk: Lightweight and simple text-to-speech software

Textalk is a lightweight and simple free text-to-speech software for Windows.

It uses OpenJTalk and the standard Windows speech synthesis engine, providing sufficient performance for basic reading.

Since it specializes in simple functions and requires no complex settings, even beginners can use it easily.

A key point is that it is very lightweight and can be used comfortably even on old PCs or in low-spec environments.

It is suitable for those seeking simple and lightweight software or looking for a portable text-to-speech software.

What is Text-to-Speech Software? A Basic Guide for Beginners

I understand there are many recommended programs, but how should I choose one?

From here, we will explain the basic knowledge you should know when choosing text-to-speech software!

Basic knowledge of text-to-speech technology. What are the characteristics of evolving text-to-speech?

Text-to-speech software refers to software or programs that automatically turn input text into audio.

While mechanical vocalization was once common, the latest AI technology has enabled natural intonation and pausing like a human.

Many free software that allow high-quality reading have appeared and are utilized for improving accessibility, language learning, content production, and more.

There are two types of text-to-speech software: "type used in a web browser" and "type installed on a computer."

Each has its own characteristics, so choosing between the web-based and installable types is very important.

Also, since commercial use conditions vary by software, it is important to check the terms of use when choosing software.

The latest text-to-speech software supports multiple voice qualities and languages.

High-performance versions capable of emotional expression are also increasing.

Characteristics and how to choose between web-based and installable types

The greatest appeal of text-to-speech software used in a web browser is the ease of starting immediately.

Web-based software like Ondoku allows for high-quality audio generation without installation, enabling you to benefit from the latest AI technology regardless of PC performance.

On the other hand, a characteristic of install-type text-to-speech software is that it can be used even in offline environments.

Web-based software is recommended for beginners or those who want to use it easily, while install-type software is recommended for more specialized uses or those who want to make detailed adjustments.

Difference between free and paid versions: How much commercial use is possible?

Basic functions of the free version of text-to-speech software are sufficient, but character limits, types of voices, and commercial use conditions may differ from the paid version.

In many cases, commercial use is not allowed for free software, so check the terms of use in advance.

Of course, there is also software that can be used commercially for free.

For example, Ondoku can be used commercially even when using it for free by displaying credit.

How to write credit notation for Ondoku. Actual examples and precautions.

Using Ondoku for free is very welcome. However, if using it for free, credit notation is mandatory. We received a question asking, "Specifically, how should it be written?" This time, we explain how credit notation works for the free use of Ondoku...

Pay attention to the terms of use for each voice engine

Even with free text-to-speech software, commercial use conditions may vary depending on the voice engine used, so caution is required.

This applies to VOICEVOX, COEIROINK, and others.

When using for commercial purposes, a key point is to always check the terms of use for each software and use it after meeting the conditions.

Starting with a free version and upgrading to a paid version as needed is also recommended.

How to Choose the Optimal Text-to-Speech Software by Application

Recommended text-to-speech software for video production and streaming

For video production and live streaming, there is optimal text-to-speech software for each purpose.

For narration creation, the natural audio of Ondoku is optimal!

It is popular among video creators because it allows commercial use even for free.

If you want to use unique character voices, paid speech synthesis software such as "A.I.VOICE" or "CeVIO" is suitable.

If you are creating "Yukkuri Jikkyou" or "Yukkuri Kaisetsu" videos, "Bouyomi-chan" or "MYukkuriVoice" is a perfect fit.

For reading comments in game streaming, "Bouyomi-chan," with its extensive linking functions, is used as a standard software.

Regarding Yukkuri Voice, it is also explained in this article.

[Latest for 2026] 5 Recommended Yukkuri Voice and Bouyomi Software | Complete comparison of PC and smartphone apps

Carefully introducing Yukkuri Voice and Bouyomi software ideal for video production and game commentary. From PC to smartphone, we explain how anyone can easily create high-quality audio with the latest 2026 apps.

Optimal text-to-speech software for learning and educational purposes

The method of turning study content into audio and listening to it during commuting is also effective for memory retention.

By choosing software that allows for easy-to-hear speed adjustments, you can increase learning efficiency.

In text-to-speech software for learning and educational purposes, the balance between clarity and functionality is important.

Since Ondoku can read long texts with natural intonation, it is suitable for turning teaching materials into audio.

Also, because the speed can be lowered to 0.3x, it is optimal for learning foreign language pronunciation.

A method you definitely want to incorporate into language learning using text-to-speech software is "shadowing."

By creating foreign language audio such as English with text-to-speech software, you can easily start shadowing.

Since this article explains the shadowing method, why not start shadowing using text-to-speech software like Ondoku?

[Complete Guide] What is the English shadowing method? Also explaining how to make materials for free!

Efficiently improve your English skills with shadowing! Explaining the learning method that improves listening, pronunciation, and speaking simultaneously for beginners. We also introduce how to create materials with free AI voices.

Utilizing text-to-speech for improving accessibility

Text-to-speech software also plays a major role in improving accessibility for visually impaired or dyslexic individuals.

Text-to-speech software with natural audio like Ondoku has the feature of being less tiring even after listening for a long time.

By turning web content into audio, more people can access digital information.

Implementing text-to-speech functions in services for the elderly also improves ease of use.

Complementing visual information with audio can promote a multifaceted understanding of information.

Points to Further Utilize Text-to-Speech Software

From here, we explain the points to keep in mind to utilize text-to-speech software effectively.

Setting points for improving sound quality

To improve the quality of read audio, pay attention to several setting points.

Adjust the reading speed according to the text content; setting it slightly slower for important information makes it easier to convey.

In Ondoku, the pitch of the voice is also adjustable, enabling the optimal setting for the listener.

Even with installable software such as VOICEVOX or COEIROINK, you can bring it closer to natural reading by adjusting the intonation.

For technical terms or proper nouns, specifying the reading or changing kanji to hiragana is an effective technique.

Also, when reading long texts, inserting breaks or pauses at appropriate positions makes it easier to hear.

We explain how to insert pauses as intended in this article!

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

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

How to utilize text-to-speech software on a smartphone

Of course, you can effectively utilize text-to-speech software on iPhone/iPad (iOS) and Android smartphones.

When you want to use it on a smartphone, browser-based software such as Ondoku is recommended.

Since it is accessible from a smartphone, you can easily use it while on the go.

When using text-to-speech software on a smartphone, using it in a Wi-Fi environment is recommended to save mobile data.

By saving the read audio created on a smartphone to cloud storage such as Google Drive or Dropbox, you can easily utilize it for editing work on a PC.

Of course, it is also ideal for making effective use of gap time, such as listening to learning content on a smartphone during commuting or travel time.

Recommended text-to-speech methods for iPhone and Android smartphones are also introduced in this article, so please take a look!

8 Recommended text-to-speech apps for iPhone/iPad! How to easily read text aloud on a smartphone?

Introducing recommended reading methods for iPhone and iPad (iOS). Explaining recommended web apps and reading apps that can be installed from the App Store.

[2026 Latest Edition] 5 Recommended text-to-speech apps for Android smartphones!

Introducing recommended reading apps that can be used on Android smartphones. We also explain the reading functions pre-installed on Android smartphones.

Summary: Why not try the text-to-speech software that is perfect for you?

As you can see, there are many options for text-to-speech software.

Even free text-to-speech software can read with very high quality, so they can be widely utilized from individual to commercial use.

For beginners or those who want to use it easily, browser-based software like Ondoku is recommended.

For video production in specific genres, software with characteristic voices such as "Bouyomi-chan," "A.I.VOICE," "CeVIO," and "VOICEVOX" are suitable.

If you are considering commercial use, it is also important to check the terms of use for each software and follow the conditions.

A key point is to first try the free version and consider the paid version or specialized software as needed.

By finding the optimal software for your application, you can make it useful for various purposes such as creative activities, language learning, and business.

First of all, why not experience text-to-speech software for free right away?