Sept. 9, 2026
Hello, thank you for always using Ondoku.
Text-to-speech software has been increasingly utilized in various situations recently.
Text-to-speech software is extremely convenient once you use it, and it will likely become an essential technology in our future lives.
Therefore, in this article, we will introduce five popular recommended text-to-speech software programs in the English-speaking world.
We will also explain whether these five text-to-speech software programs can be used commercially.
In this article, we provide a detailed explanation of text-to-speech software and web services recommended for English reading.
Please take a look.
A thorough comparison of the features and usage of 8 free English reading sites! Improve your English skills with listening and pronunciation practice using AI voice services. Explaining how to get high-quality native audio for free.
Ondoku is a text-to-speech software characterized by simple, easy-to-understand pages and a user-friendly UI.
Although we called it software, it is not a download version but a SaaS that can be used on a website.
The pricing plans are clear and simple.
As you can see, it can be used for free.
Even free members can download audio, and it is a user-friendly service with a wide range of applications.
If you're unsure, we recommend trying Ondoku first!
Amazon Polly, Amazon's text-to-speech service that started in November 2016.
It supports more than 40 languages and language variants (such as regional dialects), offers over 100 voices, and covers many languages.
By using an API, it can be integrated into various software and services.
However, without the technical skill to use an API, you cannot fully utilize Amazon Polly's services.
While you can read any text and save audio files from the AWS management console, using the API is necessary to integrate it into your own software or services.
Natural Reader Official Website
Natural Reader is a tool developed for people who struggle with reading text or who cannot read due to disabilities.
It is a SaaS that can be used immediately on a web browser without needing to download.
When using it, the available input screens differ between:
Free users can use "Lite Voices" up to 20,000 characters per day, and "Plus Voices" and "Cloned Voices" up to 4,000 characters per day combined.
If you wish to use more than this, a paid subscription is required.
Free use is not available.
If you wish to use it, a paid subscription is required.
Watson is a text-to-speech service developed and provided by IBM.
Similar to Amazon, using an API is necessary to integrate it into your own software or services.
However, according to the terms, the demo page below is limited to use for personal information gathering purposes.
For commercial use, you need to sign a contract for IBM Cloud services.
https://www.ibm.com/demos/live/tts-demo/self-service/home
Oddcast, a unique text-to-speech site.
It can read up to 600 characters, and on the right half of the screen, figures of people or animals are projected as if they are speaking.
Depending on the character, it might be a bit scary, but it is a unique service like no other.
This time, we introduced five popular text-to-speech services.
The world is very vast, and if you look, there are several other types of text-to-speech software and sites. We will introduce those on another occasion.
Personally, my recommendation is still Ondoku.
An easy-to-view website and being able to understand how to use it instantly are very important.
Please consider it as one of your options.
We look forward to seeing you soon.
"Ondoku" is an online text-to-speech tool that can be used with no initial costs.
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.
"Ondoku" is a Text-to-Speech service that anyone can use for free without installation. If you register for free, you can get up to 5000 characters for free each month. Register now for free