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bol.Voice dictation for Windows

A little less typing.

Turn your voice into text in the Windows apps you use. Hold a shortcut, speak, and release to write.

  • Free & open source
  • No Bol account
  • v1.0.0 · Windows x64

Requires your own OpenRouter API key and credits. You pay for transcription through OpenRouter.

The Bol Overview: Speak your next message or note, a Set up Bol button, the Ctrl, Shift and Space shortcut, and word and language stats. The Bol Overview in its dark theme: Speak your next message or note, a Set up Bol button, the Ctrl, Shift and Space shortcut, and word and language stats.
Bol Overview · The v1.0.0 interface, before you add an API key.
Made for
  • Messages
  • Quick notes
  • Email drafts
  • Everyday writing

Your first dictation

Set up once.
Start speaking.

Start with a Windows computer, a microphone, and your OpenRouter API key and credits.

  1. Install Bol

    Download and install Bol on your Windows computer.

    Get the installer
  2. Add your API key

    Open Settings and add your OpenRouter API key. Your OpenRouter credits pay for transcription.

  3. Check your microphone

    Select and test your microphone in Settings. Test audio stays local and is never uploaded.

  4. Hold, speak, release

    Click a text field. Hold Ctrl + Shift + Space, speak, and release. Review the text when it arrives.

Dictation needs an internet connection. Audio goes to OpenRouter and its transcription provider.

For the writing in your day

A shortcut to
your next message.

Draft a reply, capture a thought before you forget it, or get an email started. Keep working in the apps you know.

Your shortcut

A shortcut that suits you

Hold to talk and release to finish. Or choose to press once to start and again to stop. Change the shortcut in Settings to a combination you find comfortable.

Ctrl+Shift+Space
Bol’s Shortcut and dictation settings: Control+Shift+Space, Hold to talk, Bottom center icon position, and Insert into the active app turned on. Bol’s Shortcut and dictation settings in the dark theme: Control+Shift+Space, Hold to talk, Bottom center icon position, and Insert into the active app turned on.

Recording status

Know when Bol is listening

A small floating icon moves with your voice, then shows when Bol is processing the recording. Choose where it appears on your screen.

Where your words go

At your cursor. Or ready to copy.

Use the shortcut in another app and Bol will try to insert text at your cursor. You can turn automatic insertion off. Start a dictation from Bol’s Overview to get text ready to copy.

When insertion may not work

Speak first

Text arrives after you finish.

Bol doesn’t show words while you’re speaking. Release the shortcut and your text arrives, ready to review.

  1. HoldCtrlShiftSpace
  2. Speak
  3. Release
    “Let’s pick this up tomorrow. I’ve added a few notes.”

Press Escape to cancel. Each recording can last up to five minutes.

Ready when you need it. Choose your microphone and a Light, Dark, or System appearance. Keep Bol close with optional launch at login and system tray access. Find setup help in Docs.

Your voice, your words

However you say it.
जिस तरह आप बोलें।

English, Hindi, or another language you use. Auto-detect can handle switching languages, so you can speak the way you normally do.

Auto-detect is the default. You can also choose a language hint from 60 supported languages. Bol transcribes speech; it doesn’t translate or convert scripts.

An everyday example

“Let’s meet tomorrow.
बाकी बातें तब करते हैं।”
Auto-detectEnglish and Hindi in one dictation.
Languages
60
Default
Auto-detect

Writing style

A little tidier, or as spoken

Clean & readable asks the model to remove fillers and format your text. As spoken asks it to keep your words as you said them. The model may not follow every preference, so review your text.

Bol’s Language and writing style settings: Dictation language set to Auto-detect, and Clean and readable selected over As spoken. Bol’s Language and writing style settings in the dark theme: Dictation language set to Auto-detect, and Clean and readable selected over As spoken.

Spoken snippets

Say a phrase. Insert saved text.

Save “my email address” as a phrase that inserts your full email address. Say the phrase by itself to use it. Snippets match the complete spoken phrase, not words inside a longer sentence.

Bol’s snippet form: When I say my email address, write this instead. Bol’s snippet form in the dark theme: When I say my email address, write this instead.

Personal dictionary

Help Bol recognize your words

Add up to 100 names, acronyms, or technical terms as recognition hints. Give Bol a hint for a colleague’s name or an acronym you use often.

Know where your words go

Clear about privacy.

Your settings stay on your computer. Dictation audio goes to OpenRouter and its transcription provider.

  1. Your microphone

    Audio held temporarily in memory

  2. OpenRouter + provider

    Audio sent for transcription

  3. Text back in Bol

    Insert at the cursor or copy yourself

On your computer

  • Bol encrypts your saved API key using Windows protection tied to your Windows account.
  • Your preferences and optional dictation history are stored locally.
  • History is off by default. Enable it to keep the latest 500 dictations, then search, copy, or delete them.
  • Microphone tests stay local. Bol holds audio temporarily in memory and keeps no recording archive.

When you dictate

  • Dictation audio goes to OpenRouter and its transcription provider. Their retention policies still apply.
  • Bol does not collect app usage data (telemetry). There’s no Bol account system or hosted Bol backend.
  • Bol does not read your screen, app content, or selected text to help rewrite your words.
  • Automatic insertion leaves your clipboard untouched. Clicking Copy replaces its contents.

Free and open source

A useful little app.
Yours to explore.

Bol is free to download and use. There’s no Bol subscription. Connect your own OpenRouter API key to pay for the transcription you use.

Read the code to see how Bol works. Report a bug, suggest an improvement, or contribute a change.

The Bol app
FreeNo subscription. No Bol account.
Transcription
Paid through OpenRouterUse your own API key and credits.
Powered by MAI Transcribe 2.

A few things to know

Before you
press record.

Still have a question?
Contact product support

What is Bol?

Bol is a personal Windows voice dictation app for messages, notes, emails, and everyday writing. It turns finished recordings into text you can insert into an app or copy. Recordings have a five-minute limit; Bol has no meeting-recording mode.

Is Bol free?

The Bol app is free, with no Bol subscription or Bol account. Transcription costs extra: bring your own OpenRouter API key and credits to pay the transcription provider through OpenRouter.

Why do I need an OpenRouter API key?

Bol uses MAI Transcribe 2 through OpenRouter to turn recordings into text. Your API key connects Bol to your OpenRouter account, which pays for transcription. Add your key in Settings and make sure your OpenRouter account has credits.

Does it work offline?

No. Dictation requires an internet connection. Bol doesn’t show words while you’re speaking; text arrives after you finish recording. Microphone tests stay on your computer and are not uploaded.

Which operating systems are supported?

The current build is for Windows x64. There are no macOS, Linux, or mobile builds. Reading this on your phone? Download Bol on your Windows computer.

Which languages can I use?

Auto-detect is the default and can handle switching languages, including English and Hindi. You can also choose a language hint from 60 supported languages in Settings.

Does it translate speech?

No. Bol transcribes what you say. It does not translate speech or convert it into a different script.

Where does my audio go?

Dictation audio goes to OpenRouter and its transcription provider. Their retention policies still apply. Bol holds audio temporarily in memory and keeps no recording archive. Microphone tests stay on your computer.

Is history saved automatically?

No. History is off by default. Enable it to keep the latest 500 dictations on your computer, where you can search, copy, or delete them. There is no cloud sync.

Will it work in every application?

Insertion isn’t guaranteed. Apps running as administrator, protected fields, and some custom editors may block it. If Bol detects a focus or cursor change, it keeps the transcript ready to copy. Some cursor changes in browsers and custom editors cannot be detected. Stay in your text field until the result is ready. If insertion fails, check for any text already inserted before pasting. You can also turn automatic insertion off.

Does it send my messages automatically?

No. Bol does not press Enter to submit messages. Review your text and send it yourself. Automatic insertion leaves your clipboard untouched. Clicking Copy replaces its contents.

Why might Windows show an installation warning?

The current installer is unsigned, meaning it has no digital signature. Windows may show a reputation warning. Review the download source and the information Windows provides before deciding whether to install. Bol has no automatic updater; download new versions manually.

Where can I report bugs or contribute?

Report bugs and suggest improvements in the issue tracker. Visit the source repository to explore the code and contribute.

Speak. Write. Carry on.

Your next thought.
A little less typing.

Bol v1.0.0 for Windows x64.
Download on your Windows computer.

What you need

  • A Windows x64 computer and a microphone
  • Your OpenRouter API key and credits
  • An internet connection while you dictate
Windows installerRecommended
Download for Windows

Bol_1.0.0_x64-setup.exe

Standalone ZIPBol_1.0.0_windows-x64.zip

Extract the ZIP, then run Bol.

Download ZIP

Free, open-source app. Requires your own OpenRouter API key and credits. You pay for transcription through OpenRouter.

The current installer is unsigned and may trigger a Windows reputation warning. Review the download source before installing. Download new versions manually; Bol has no automatic updater.

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