CoeFont
: How to use it, features, and the business problems it solves
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What is CoeFont?
A text-to-speech and voice synthesis service with a library of over 10,000 AI voices. You can register your own voice from about 50 recorded sentences, and it also offers a voice changer and enterprise real-time AI interpretation.
Business problems it solves
About "CoeFont"
What is CoeFont?
CoeFont is a text-to-speech (TTS) and voice synthesis service from CoeFont, Inc. with a library of over 10,000 AI voices. Just type text to generate natural-sounding speech, and you can register your own voice as an AI voice from about 50 recorded sentences. It has been used by over 3 million people and more than 1,000 companies.
The service has broadened its focus in recent years. Beyond traditional TTS, it now leads with "CoeFont Interpreter," a real-time AI voice interpretation for businesses, supporting simultaneous meeting interpretation and automatic summaries (as of August 2026).
Choose a voice, create one, change one
The core of CoeFont is that you don't just choose from a huge voice library — you can create your own voice. Read out about 50 sentences and you can register an AI voice in your own timbre for narration and read-aloud. There is also a voice changer that converts your voice in real time for streaming and calls, plus controls for speed, pitch and volume.
Features
01Read aloud (TTS)
- Text-to-speech — read text naturally in over 10,000 voices
- Fine control — adjust speed, pitch, volume and more
- Multilingual — Japanese, English, Chinese, Spanish, French
02Create & transform
- Original AI voice — register your own voice from ~50 recorded sentences
- Voice changer — convert your voice in real time (for streaming/calls)
- API — Plus and above support bulk generation via the TTS API
03For businesses
- CoeFont Interpreter — real-time AI interpretation and auto-summaries for meetings
- Enterprise — SSO, custom dictionaries, speaker identification and more
- Track record — adopted for training programs at Japan's ATLA (Acquisition, Technology & Logistics Agency)
How to use
-
Register an account
Create an account on the official site and log in.
-
Choose or create a voice
Pick from over 10,000 AI voices, or create an original voice from ~50 recorded sentences.
-
Enter your text
Type the text you want read aloud and adjust speed and pitch.
-
Generate and download
Generate the audio and download it for use.
Pricing
Alongside a free plan, there are paid plans (the official pricing page shows USD; as of August 2026).
| Plan | Price | Commercial use | Characters/mo | What you get |
|---|---|---|---|---|
| Free | $0 | No | 800 | Trial, non-commercial only |
| Standard | $20/mo | Yes | 80,000 | For individuals · 5 hrs/mo interpretation |
| Plus | $350/mo | Yes | 1,000,000 | API · up to 5 users · 8 hrs/mo interpretation |
| Enterprise | Contact us | Yes | Scalable | SSO, custom dictionary, speaker ID |
The free plan is limited to non-commercial use; commercial use requires Standard or above. Prices are shown in USD, and the figures and limits in local currency may vary by region and time. Check the official pricing page for the latest.
How CoeFont differs from other voice synthesis services
CoeFont stands out for its library of over 10,000 voices, the ease of creating your own voice, and its reach into enterprise interpretation.
| Aspect | CoeFont | High-quality TTS/cloning (ElevenLabs) | Video voiceover (Murf) |
|---|---|---|---|
| Number of voices | Over 10,000 | High-quality, multilingual | Many for narration |
| Your own voice | From ~50 sentences | Voice cloning | Partial support |
| Notable | Interpretation, voice changer | Emotion, multilingual | Ties into video production |
If you prioritize multilingual quality and voice cloning, ElevenLabs; for narration and dubbing handled end to end, Rask AI are good complements. For anyone who wants a wealth of voices in Japanese with the option to create their own, CoeFont is a strong choice.
The information on this page is based on what is published on the official website as of August 2026. Please check the official site for the latest specifications and pricing.
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