Speak.
Get clean, polished text.
STT4U is a voice typing app that works in any Windows app. Press your keyboard shortcut and speak. STT4U turns your speech into text, cleans it up, and pastes it at the cursor.
Features
in any app
readable text
your terms
as you speak
15+ languages
meeting notes
aloud
AI models
A look inside
See how to use it →Home
See this month’s word count, costs, and your current setup at a glance.
Dictionary
Add names and specialized terms by category, and they’re spelled the way you want.
Translation
Speak in one language and type in another, such as Japanese, Chinese, or Korean.
Cost
See what you’ve spent on AI over any period.
Models / API
Choose the AI models for speech recognition and cleanup, or pick a recommended combination.
Settings
Set your keyboard shortcut, microphone, and how the shortcut works.
Voice typing, made easy.
- No subscription requiredThe app is free. You pay only for the AI you use, and months you don’t use it cost nothing.
- Works in any appEmail, chat, documents, browsers, and more. Text goes right where your cursor is.
- Clean, readable textRemoves “um” and “uh,” and fixes misrecognized words from context.
- No developer server in betweenYou use your own AI account. Your voice and text never pass through the developer’s servers.
What it costs
You pay for AI directly to OpenRouter, a service that gives you access to many AI models, through your own account. Amounts are estimates for the recommended settings as of October 2026.
Get started
Get it from Microsoft Store
Install STT4U for free from the Microsoft Store.
Set up OpenRouter
Create an OpenRouter account and an API key. See the Getting started guide for how.
Follow the setup screen
When you first start the app, set your API key and microphone.
Press and speak
Click where you want to type, press your keyboard shortcut, and speak. Your text appears right there.
More than
voice typing.
- Transcription and meeting notesTurn recordings into text, and then into summaries, decisions, and action items.
- TranslationSpeak in one language and type in another, with more than 15 languages to choose from.
- Read aloudHave text read in a natural voice and save it as an audio file.
What you need
- A PC running Windows 10 or 11 (64-bit)
- A microphone and an internet connection
- An OpenRouter account and API key (see the Getting started guide)
About generative AI
Cleaned-up text, summaries, translations, and read-aloud audio are created by generative AI. AI output may be inaccurate. Your voice and text are sent through your own OpenRouter account to the provider of the AI model you choose (Privacy policy).
Also on Android.
On your phone, STT4U works as a voice typing keyboard. It cleans up what you say and types it into any app.
Just speak. Get text.
Get STT4U for free from the Microsoft Store. For questions or problems, contact us.