2025 AI Voice-to-Text Services: Top 10 Free & Paid Tools

June 8, 2025

2025 AI Voice-to-Text Services: Top 10 Free & Paid Tools | AI Transcription Service - Mr. Transcription
How can I easily transcribe audio?
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Transcribing audio for meetings, interviews, or video subtitles can be incredibly time-consuming.

Have you ever wished you could transcribe audio more easily?

In fact, anyone can easily and automatically transcribe audio using the latest AI tools.

What used to require manual typing can now be completed in just 10 minutes!

This article explains the features and benefits of AI transcription services, along with recommendations for the best audio transcription tools.

Why not streamline the transcription of voice memos and IC recorder audio using AI?

What is Audio Transcription?

What is Audio Transcription?

Audio transcription is the process of converting audio recorded on smartphone voice memos or IC recorders into text.

Transcription is also known as "audio-to-text conversion" or "speech-to-text."

Audio files, as they are, don't allow for quick content review.

By converting them into text, you can find the necessary information without having to play the audio.

Furthermore, it becomes possible to create video subtitles, interview articles for websites or magazines, and utilize audio content more conveniently.

AI Transcription Services are Recommended for Voice Memo Transcription!

AI Transcription Services are Recommended for Voice Memo Transcription!

If you need to convert audio from smartphone voice memos or IC recorders into text, the latest AI transcription services are highly recommended.

While transcribing manually by typing is very difficult, AI allows for fully automatic and easy text conversion.

The processing is also very fast, allowing hours of long audio to be converted into text in just 10 minutes.

And the cost is very low, with many services available for free!

If you're looking to transcribe voice memos or IC recorder audio, it's highly recommended to use the AI transcription services introduced below.

Top 10 Recommended Audio Transcription Services

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I want to know the best services for transcribing audio!

Let's dive right into our top 10 recommended services for automatically transcribing audio!

  1. Mojiokoshi-san
  2. Texter
  3. toruno
  4. Notta
  5. Smart Shoki
  6. Rimo Voice
  7. AI Gijiroku
  8. Google Docs
  9. Word
  10. User Local Voice Minutes System

1. Mojiokoshi-san

Mojiokoshi-san

"Mojiokoshi-san" is an AI transcription service highly recommended for anyone who needs to convert audio to text!

It has two main features:

  • Versatile functionality
  • Free to use

That's it.

Versatile High-Performance Latest AI

The speech recognition AI "Perfect Voice" used by "Mojiokoshi-san" is a high-performance AI that can accurately transcribe even difficult audio, such as recordings with specialized terminology or significant background noise.

It also boasts high processing speed, capable of converting long audio files into text in just 10 minutes!

You can also use the "Time Code Display" feature to transcribe meetings, separating the text by speaker.

It supports 100 languages, including Japanese and English, making it ideal for those who frequently work with international teams.

Supports Audio, Video, Images, and PDFs

In addition to audio, "Mojiokoshi-san" also supports video, images, and PDFs.

It can be conveniently used for creating subtitles for video producers or transcribing screenshots from foreign language apps.

Web Service Compatible with PC, Smartphone, and Tablet

"Mojiokoshi-san" is a web service accessible via a web browser.

You can use it from any environment: PC, smartphone, or tablet.

It's also possible to directly upload audio recorded with voice memo apps on your smartphone or tablet for transcription.

You can automatically transcribe voice memos with easy operation, a hallmark of web services.

Free AI Transcription Service

And "Mojiokoshi-san" is free!

You can transcribe audio files up to 3 minutes for free (up to 10 minutes per day) without registration or login.

When using an AI transcription service, a common concern is the accuracy of the transcription.

Experience the high performance of the latest AI right now. Why not try "Mojiokoshi-san" from here first?

2. Texter

Texter

Texter is an AI transcription service that transcribes audio from your smartphone.

It supports in-app transcription as well as uploading audio and video files from your smartphone for transcription.

The app is available for both iPhone and Android.

If you use an iPhone, you can also import files from iCloud.

3. toruno

toruno

toruno is an AI transcription service designed for transcribing meeting content.

It comes equipped with many features for meetings, including audio recording, transcription, and screen capture.

When using it on a PC, real-time transcription is done via a desktop app, while file uploads are handled through a web browser.

The desktop app supports Windows OS.

4. Notta

Notta

Notta is an AI transcription service compatible with both PCs and smartphones.

It can significantly reduce the time spent on creating meeting minutes, and you can import audio files directly from the management screen.

It also supports transcription of foreign languages.

5. Smart Shoki

Smart Shoki

Smart Shoki is an AI transcription service designed to automate the creation of meeting minutes.

It integrates with web conferencing systems like Zoom, Microsoft Teams, and Google Meet, making it suitable for transcribing remote meetings and for companies with many employees working from home.

It also includes an AI-powered meeting summarization feature.

6. Rimo Voice

Rimo Voice

Rimo Voice is an AI transcription service that supports Japanese audio transcription.

This service is also primarily aimed at creating meeting minutes, offering AI-powered audio transcription and summarization.

While it only supports Japanese and cannot transcribe foreign languages, it's a convenient web service for converting meeting audio into text.

7. AI Gijiroku

AI Gijiroku

AI Gijiroku (AI Meeting Minutes), as its name suggests, is an AI transcription service specialized in creating meeting minutes.

It integrates with ZOOM and supports 30 foreign languages.

Primarily targeting business users, it also offers plans for large corporations.

8. Google Docs

Google Docs

Google Docs also includes an audio transcription feature.

However, it only supports real-time voice input.

To transcribe an audio file while it's playing, you need to go through the cumbersome process of "recording audio playing on your PC."

While it's a basic feature, it's convenient when you only need minimal functionality.

9. Word

Word

Microsoft Word, like Google Docs, also has a basic audio transcription feature.

It can be accessed through the "Dictate" function.

However, this is also a basic feature and can only convert audio recorded via a microphone into text.

It's recommended when simple functionality is sufficient.

If you need advanced audio transcription, consider other services.

10. User Local Voice Meeting Minutes System

User Local Voice Meeting Minutes System

User Local Voice Meeting Minutes System is an AI transcription service that automatically creates meeting minutes while recording audio.

It's primarily designed for PC use and is accessed via a web browser.

It supports Google Chrome, Edge, and Safari browsers.

This is a very simple service, recommended if you're looking for a straightforward solution without needing extensive support.

Free! Recommended Audio Transcription Services

So, how exactly do you transcribe audio?

For AI-powered audio to text conversion, "Mojiokoshi-san" is highly recommended!

Mojiokoshi-san

"Mojiokoshi-san" is an audio transcription service recommended for anyone who wants to easily transcribe audio.

You can easily transcribe audio recorded with voice memos or IC recorders for free.

With the latest AI "PerfectVoice", even long audio files can be transcribed in just 10 minutes!

It transcribes with high accuracy and no errors, making it ideal for situations where you want to prevent mistakes, such as meeting minutes.

What's more, "Mojiokoshi-san" is free!

You can transcribe up to 3 minutes of audio for free without registration or login, so you can start transcribing right away.

If you're looking for a way to transcribe audio files, why not try "Mojiokoshi-san" here?

How to Transcribe Audio Using the Latest AI (Voice Memo Compatible)

Tell me the process of how to transcribe!
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We will explain the process of transcribing audio files recorded with voice memos using images for easy understanding!

1. Record the Audio File

Record the audio file

Record audio using your smartphone's voice memo app or an IC recorder.

At this time, paying attention to a few points can help you record with good sound quality.

Avoid Background Noise

When recording with your smartphone's voice memo app:

  • Place it on a desk or table rather than holding it by hand.
  • Place it on a desk that no one is using to avoid keyboard typing sounds.

Paying attention to these two points will help reduce background noise.

When recording outdoors, consider attaching an external microphone and a wind shield to your smartphone or IC recorder.

Ensure Everyone's Voice is Recorded at the Same Volume

When recording multiple voices, such as in meetings or interviews, with a voice memo, it's best to place the recording device equidistant from everyone.

*If professional equipment is available, it's best to have the people being recorded wear lavalier microphones.

2. Upload the Audio File

Upload the recorded audio file to an AI transcription service.

Here, we will explain using "Mojiokoshi-san".

Open the top page of "Mojiokoshi-san" from this link.

Mojiokoshi-san's top page

Click "Select" to choose your file.

Select file

Can Also Select from Smartphone

"Mojiokoshi-san" allows direct upload from smartphones!

Click "Select" to open the file selection screen, then choose the audio file you want to transcribe.

■ For iPhone

For iPhone

src="https://storage.googleapis.com/mojiokoshi3/post/image/iphone-mojiokoshi3-browser03.jpg" />

■ For Android smartphones

For Android smartphones

For Android smartphones, tap "Files" to open the file selection screen.

For Android smartphones

Set Language

Select the language.

Now you're ready.

Press the "Transcribe" button to start uploading the file.

Transcribe button

Once the file upload is complete and processing begins, you can close the screen.

* If transcribing for free, keep the top page open.

Processing started

3. Transcription Complete

Transcription processing with 'Mojiokoshi-san' usually completes in about 10 minutes.

* Shorter files will complete even faster.

You will be notified by email when the transcription is complete.

Notification email

You can open the transcription results page from the link in the email.

Transcription results page

If you kept the page open, the screen will switch to display the transcription results.

Results displayed on top page

This completes the process of converting audio files to text using 'Mojiokoshi-san'.

It's incredibly easy to convert audio to text, so why not try 'Mojiokoshi-san' here?

Detailed Explanation of Audio Transcription Tips and Tricks

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I want to know more about audio transcription!
  • For those who are about to transcribe audio
  • For those who want to streamline audio transcription work

We'll explain in detail the key points and tips for transcription!

By understanding transcription, you can convert audio recorded with voice memos into text even more conveniently.

Types of Transcription

Types of Transcription

Transcription can be classified into three types based on how much the transcribed content is refined: "Verbatim," "Clean Verbatim," and "Edited Transcription."

  • Verbatim: Transcribes everything, including meaningless parts like "um" or "uh."
  • Clean Verbatim: Transcribes by removing only meaningless parts like "um" or "uh."
  • >
  • **Refinement:** The content of the text is organized and made easy to read.

These are the characteristics.

When transcribing manually, the simplest method is verbatim transcription.

However, even in that case, it takes 3 to 4 hours to transcribe 1 hour of audio.

Since you need to repeatedly play and stop the audio while typing on the keyboard, transcription has historically been a very demanding task.

However, with AI transcription services, you can automatically transcribe 1 hour of audio in just 10 minutes.

Methods for Audio Transcription: AI is Recommended!

Methods for Audio Transcription: AI is Recommended!

There are two ways to transcribe audio recorded with a smartphone voice memo or IC recorder:

  • Transcribe by typing on a keyboard
  • Transcribe using an AI transcription service (tool, app)

Previously, the only way to convert audio to text was to play a recorded file (e.g., from a voice memo) and type it out on a keyboard.

However, typing it yourself takes a very long time, and outsourcing to a specialized company or transcriber would cost tens of thousands of yen, which is very expensive.

Solve Transcription Problems with AI!

This is where AI transcription services come in.

An **AI transcription service** is a tool or app where voice recognition AI reads an audio file and automatically transcribes it.

With an AI transcription service, transcription is completed in **just 10 minutes**.

Since typing on a keyboard takes 3 to 4 hours or more to transcribe 1 hour of audio, AI transcription has made the process **much faster and easier**.

And of course, the accuracy is outstanding!

Even complex audio files with a lot of technical jargon can be accurately transcribed.

For future audio transcription, AI transcription services are highly recommended!

Benefits of AI Transcription Services

AI transcription services offer numerous benefits.

1. Fully Automatic and Easy Audio Transcription

Fully Automatic and Easy Audio Transcription

The biggest advantage of AI transcription services (software, apps) is that you can transcribe audio completely automatically by **simply uploading the audio file**.

Once transcription begins, the text is ready in 10 minutes.

Since a highly accurate AI performs the work, there are no typing errors or incorrect conversions that are common when transcribing yourself while listening to voice memo files.

2. Free to Use. Much Lower Cost Than Professional Services.

Free to Use. Much Lower Cost Than Professional Services.

AI transcription services are available for free!

For example, "Mojiokoshisan" allows you to transcribe audio files without registration or login, so you can **convert audio to text instantly whenever you need it**.

Furthermore, the **paid plans for AI transcription services are much more affordable than professional transcribers**.

The market rate for AI transcription services that use human transcribers is around 15,000 yen per hour.

In contrast, AI transcription services can transcribe for as little as 25 yen per hour!

They are high-performing and cost-effective.

3. Just Record, No Notes Needed!

Just Record, No Notes Needed!

Using an AI transcription service means no need for notes during meetings or interviews.

You can easily convert all content to text by simply recording with a voice memo, allowing you to focus solely on the content without taking notes.

Moreover, AI transcription services make it easy to create meeting minutes by transcribing audio for each speaker!

Cautions for AI Transcription Services

When using AI transcription services to convert voice memo audio to text, there are some points to be aware of.

1. Features Vary by Service (Software/App)

Features Vary by Service (Software/App)

As this article introduces, there are many types of AI transcription services available, but it's important to note that each has different features.

  • Transcription duration limits
  • Specialization in areas like meetings or interviews
  • Support for foreign languages
  • Ability to transcribe video, images, or PDFs in addition to audio

There are differences in what each service (software/app) can do. To transcribe more conveniently, it's recommended to choose an all-around service with a wide range of features.

2. Some services can be expensive

Some services can be expensive

While AI transcription services are generally very affordable, be aware that some services can have high usage fees.

Especially for corporate-向け services, monthly fees can range from tens of thousands to hundreds of thousands of yen.

There are also services like 'Mojiokoshi-san' (available for free, or from 25 yen per hour for paid use) that are very affordable, so it's recommended to research whether a service can be used for free or at a low cost before choosing.

3. [Solution Available] Some services may not be compatible with all PCs or smartphones

[Solution Available] Some services may not be compatible with all PCs or smartphones

When choosing an AI transcription service, one thing to be careful about is that some services may not be usable depending on the type of PC (Windows / Mac / Linux) or smartphone (iPhone / Android).

Before starting to use a service, it's necessary to check if it's compatible with your PC or smartphone.

There's a recommended solution to avoid this.

That is to choose an AI transcription service (web service) that can be used directly from a web browser.

Services like 'Mojiokoshi-san', which can be used from web browsers like Chrome or Safari, allow transcription from any environment – PC, smartphone, or tablet!

You can even upload audio recorded with your smartphone's voice memo function directly.

■ AI transcription service "Mr. Transscription"

"Mr. Transcription" is an online transcription tool that can be used from zero initial cost and 1,000 yen per month (* free version available).

  • Supports more than 20 file formats such as audio, video, and images
  • Can be used from both PC and smartphone
  • Supports technical terms such as medical care, IT, and long-term care
  • Supports creation of subtitle files and speaker separation
  • Supports transcription in approximately 100 languages ​​including English, Chinese, Japanese, Korean, German, French, Italian, etc.

To use it, just upload the audio file from the site. Transcription text is available in seconds to tens of minutes.
You can use it for free if you transcribe it for up to 10 minutes, so please try it once.

It is "Mr. Transcription" who can easily transcribe from audio, video, and images. Transcription allows you to transcribe for up to 10 minutes for free. You can copy, download, search, delete, etc. the transcribed text. You can also create subtitle files, which is ideal for transcription of interview videos.
HP: mojiokoshi3.com
Email: mojiokoshi3.com@gmail.com
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