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Earheart

Earheart

Talk to your coding agents.
Press a hotkey, speak your prompt, press again — it lands in Claude Code, Codex, Cursor, or whatever else has focus.
Fully local. No cloud, no account, nothing leaves your machine.

Earheart overlay showing a live transcript while recording
Earheart overlay showing a progress bar while the transcript is cleaned up
Earheart overlay confirming the transcript was pasted

The overlay transcribes live as you speak, shows progress while it finishes up, then confirms where the text landed — without stealing focus.


Working with an agent is a conversation, but you type it like a form. The prompts that actually work are long — context, constraints, the three things you already tried, the "no, not like that." Typing all of that is the slow part of the loop, and the reason people send a one-liner instead and then spend four turns correcting it.

Earheart turns that part into talking. Press a global hotkey, say what you want, press it again: your speech is transcribed on-device (NVIDIA Parakeet), tidied up on-device (a small Gemma model drops the ums, false starts and backtracking), and pasted straight into whatever app has focus — the terminal running Claude Code, the Codex composer, Cursor's chat box, a GitHub issue, an email.

Nothing leaves your machine, which matters more for agent prompts than for ordinary dictation: what you say to an agent is your own code, your file layout, your architecture, your unshipped work. Out of the box both models run inside the app, on your computer — no separate program, no Python, no account, no telemetry. The setup wizard downloads a small Parakeet speech model and a small Gemma cleanup model (with a progress bar) and runs them in-process.

It is still a general-purpose dictation app — the hotkey works the same in your email client, your notes and your browser. Agents are just where it earns its keep. See Talking to agents for the practical setup, and docs/agents.md for a recipe per tool.

Prefer to point Earheart elsewhere? Both steps are also modular, OpenAI-compatible HTTP clients, so you can choose where your voice goes:

  • Built-in (default): Parakeet + Gemma run in-process — fully private, nothing to install.
  • Local server: run the Parakeet STT server and an Ollama/llama.cpp model yourself.
  • Mix and match: local STT with a hosted LLM for cleanup, or any other combination. Switching is just a base URL in Settings.

Features

  • Global hotkey (default Ctrl/Cmd+Shift+Space): press to start, press to stop. A small overlay draws your voice live and shows progress without stealing focus from the app you're dictating into. With the built-in engines, a slim bar tracks the finishing passes too — estimated from your machine's measured decode speed while transcribing (so it deliberately stops short of the end rather than overpromise), and following actual generation during cleanup.
  • Pause and resume mid-dictation — the overlay's pause key holds the take (talk to someone, take a call) and resumes the same dictation; paused time is never captured and never counts against the max dictation length. Optionally bind a global pause hotkey in Settings → General.
  • Speech-to-text with NVIDIA Parakeet — by default Parakeet TDT 0.6B v3 (multilingual, 25 languages) runs in-process via sherpa-onnx / ONNX Runtime, faster than realtime on CPU and with no network hop. Or point Earheart at any OpenAI-compatible transcription API, or run the optional earheart-stt server yourself.
  • Live transcript while you speak (on by default) — with the built-in engine the overlay fills in the text as you talk, with a cleaned-up version settling in behind the raw words on pauses. The final transcript on stop is unchanged. Toggle it under Settings → Speech-to-text.
  • LLM cleanup (on by default) — punctuation, filler-word removal, false starts, so a rambled prompt arrives as something an agent can actually read. By default a small Gemma model runs in-process; or point cleanup at any OpenAI-compatible chat API. If cleanup fails, the raw transcript is delivered instead — your words are never lost.
  • Cleanup styles and a personal dictionary — one slider picks how far cleanup may stray from your exact words (VerbatimCleanPolished), and the prompt underneath is fully editable. The dictionary in Settings → Cleanup fixes the terms speech-to-text always mangles: your repo and product names, pnpm, kubectl, useEffect, colleagues' names.
  • Auto-paste, clipboard, or both — paste straight into the focused app (with clipboard restore), paste and keep the transcript on the clipboard, or clipboard-only if you prefer to paste yourself.
  • Start on login (optional) — have Earheart launch into the tray automatically when you sign in, so the hotkey is always ready. Off by default; toggle it under Settings → General. Works on Windows, macOS and Linux.
  • Local history — recent transcriptions are kept in a local JSON file so a mis-aimed paste never loses a dictation. Can be disabled.
  • No telemetry, no accounts, no cloud requirement.

Install

1. Download the right file for your OS

Open the latest release page and, under Assets, download the file that matches your system. <version> is just the version number (e.g. 0.8.0).

🪟 Windows

  • Most people: Earheart-Setup-<version>.exe — the installer.
  • Don't want to install? Earheart-<version>.exe — a portable build you can run directly.
  • Windows on ARM (Snapdragon X): use the same x64 files above — Windows runs them under built-in emulation, and both transcription and cleanup work. There is no separate ARM installer yet.

🍎 macOS

  • Apple Silicon (M1/M2/M3/M4): Earheart-<version>-arm64.dmg
  • Intel Macs: Earheart-<version>.dmg
  • Not sure which Mac you have? Click → About This Mac and look at "Chip" / "Processor".

🐧 Linux

  • Any distro: Earheart-<version>.AppImage — works everywhere.
  • Debian / Ubuntu: earheart_<version>_amd64.deb — installs as a normal package.

2. Install it

Your download What to do
Earheart-Setup-<version>.exe Double-click and follow the installer.
Earheart-<version>.exe (portable) Just double-click to run — no install.
Earheart-<version>*.dmg Open it, then drag Earheart into Applications. (See the macOS note below — the first launch needs one extra step.)
Earheart-<version>.AppImage In a terminal: chmod +x Earheart-*.AppImage, then double-click or run it.
earheart_<version>_amd64.deb sudo apt install ./earheart_<version>_amd64.deb

⚠️ macOS first launch: "Earheart is damaged and can't be opened"

This does not mean the app is broken. Earheart isn't signed/notarized yet, so macOS quarantines it. After dragging Earheart to Applications, run this once in Terminal:

xattr -dr com.apple.quarantine /Applications/Earheart.app

Then open Earheart normally. (The "right-click → Open" trick only clears the milder "unidentified developer" warning, not the "damaged" one.) More detail in macOS notes below.

You only ever do this once: Earheart updates itself from GitHub releases (see below), and updates installed from inside the app clear the quarantine automatically.

That's it — the built-in engines need nothing else installed. The first-run wizard downloads the speech and cleanup models for you.

Updates

Earheart checks GitHub releases for a new version on startup and twice a day (toggle under Settings → Advanced → Updates) and shows a notification plus an Update to vX.Y.Z entry in the tray menu when one is out. It tells you what you'd be getting: the prompt on the dictation bar lists the top changes (every version between yours and the new one — Settings → Advanced shows the full list), and after it updates itself the bar says what changed. One click downloads the release, verifies its checksum and reinstalls in place:

  • Windows (installed): the new installer runs silently and the app relaunches. The portable exe can't update itself — the app opens the releases page instead.
  • macOS: the app bundle is swapped and the quarantine attribute is stripped automatically, so the updated app opens normally — no xattr needed after the first manual install.
  • Linux (AppImage): the AppImage file is replaced in place (same path, so launchers and autostart keep working) and the app relaunches. A .deb install opens the releases page instead (upgrading needs sudo).

Advanced: a local STT server with uv

If you'd rather run the Parakeet STT server as a separate process (e.g. to share it with other tools or use a GPU), start it yourself and point Earheart's speech-to-text at its URL (default http://127.0.0.1:8484/v1) in Settings → Speech-to-text. Running it needs uv installed:

curl -LsSf https://astral.sh/uv/install.sh | sh   # Linux / macOS
winget install astral-sh.uv                       # Windows
cd stt-server && uv run earheart-stt              # start the server

Or point Earheart at a hosted transcription service (OpenAI, Groq, …) — Settings → Speech-to-text lets you enter its URL and API key instead.

Upgrading from 0.4.x? The in-process engines are new defaults; your existing configured STT/cleanup endpoints are preserved and keep working (migrated to the "remote" engine). The old "start a local STT server automatically" option has been removed — run the server yourself as above.

Build from source

If there's no release for your platform (requires Node 22+):

git clone https://github.com/cleanunicorn/earheart
cd earheart
npm install
npm run dist     # installers for the current platform land in dist/

(Or run it unpackaged with npm start.)

First run

Earheart setup wizard

On first launch a short setup wizard walks through hotkey, microphone, speech-to-text, cleanup and output. It sets up the on-device engines for both speech-to-text and cleanup, so first-run dictation is fully local and private with nothing to configure. Prefer a remote service? Switch any time in Settings → Speech-to-text or Settings → Cleanup.

The wizard's last step downloads the models that run on your machine — a small Parakeet speech model (≈ 670 MB) and a small Gemma cleanup model (≈ 800 MB) — showing a progress bar as it goes. It's a one-time download; everything after that is faster than realtime, even on CPU. You can pick a larger, higher- quality cleanup model in the wizard or later in Settings → Cleanup.

Every launch after that goes straight to the tray — no window to dismiss — and posts a short "ready, press your hotkey" notification. Click it to open Settings, or ignore it and start dictating. Settings is always in the tray menu.

Transcript cleanup

Cleanup is on by default and runs the built-in Gemma model in-process: a language model fixes punctuation and removes filler words and false starts, with no network hop. You can disable it, pick a larger built-in model, or edit the prompt in Settings → Cleanup.

Prefer to run cleanup elsewhere? Any OpenAI-compatible chat endpoint works. A fully local example with Ollama:

ollama pull llama3.1:8b

Then in Settings → Cleanup: base URL http://127.0.0.1:11434/v1, model llama3.1:8b. For a hosted service instead, use its base URL, API key and model name (e.g. OpenRouter, Groq, OpenAI).

Using Earheart

  1. Put your cursor wherever you want text — an email, an editor, a chat box.
  2. Press the hotkey (default Ctrl/Cmd+Shift+Space). A slim bar appears at the bottom of the screen — a status dot and word, your voice drawn live, and a timer; it never steals focus.
  3. Speak, then press the hotkey again (or the bar's ✓ key). Earheart transcribes, optionally cleans up, and pastes the result right where you were typing. The ✕ key discards the dictation — nothing is typed.

Earheart lives in your system tray. From the tray menu you can start a dictation, open the transcription history, or change any choice you made in the wizard:

Earheart settings window

A mis-aimed paste never loses your words: the History section in Settings keeps recent transcriptions in a local file (you can turn this off).

Talking to agents

Earheart pastes into the focused window, so it works with any agent you can type into — no integration, no plugin, no API key. Put the cursor in the agent's input, hold the thought, press the hotkey, and say the whole prompt including the parts you'd normally leave out because typing them is tedious.

Per-tool setup recipes — terminal newlines, Wayland hotkeys, hotkeys that don't collide with your editor — live in docs/agents.md.

Where you're prompting What to know
Claude Code / Codex CLI (terminal) Paste lands in the TUI input like any paste. On Linux, auto-paste needs xdotool/wtype — see Platform notes.
Cursor, VS Code, JetBrains chat Nothing special — click the chat box and dictate.
claude.ai, ChatGPT, agent web UIs Same. The overlay never steals focus, so the composer keeps it.
Anywhere via a shortcut Bind a system shortcut, mouse button or foot pedal to earheart --toggle instead of using the built-in hotkey.

Three settings are worth a minute for agent work:

  • Cleanup style (Settings → Cleanup). Clean — the default — is the right one for prompts: it removes the ums and the restarts but keeps your wording and your intent. Switch to Verbatim when you're dictating exact strings, commands or code and want nothing touched. Avoid Polished for prompts; smoothing prose is not what you want done to an instruction.
  • Dictionary (Settings → Cleanup). Speech-to-text has never heard of your repo. Add the words you say fifty times a day — service names, pnpm, kubectl, PostgreSQL, useEffect, your teammates' names — and near-misses get corrected to the exact spelling.
  • Cleanup prompt (Settings → Cleanup). Editable. Agent prompts are not prose, and you can say so — e.g. tell it to keep file paths, flags and identifiers exactly as spoken and never to answer the transcript. (The default prompt already forbids acting on the transcript's content: your dictation is text to clean, never instructions to follow.)

What it doesn't do yet. You still press Enter yourself — Earheart pastes, it doesn't submit. The agent can't ask you a question by voice, and it can't talk back. Those are the next things we're building; the ideas are filed as issues under the agents label, and opinions on them are welcome.

Using other services

Anything that implements the OpenAI API shapes works out of the box:

Component Endpoint used Examples
Speech-to-text {base URL}/audio/transcriptions earheart-stt (local Parakeet), speaches, Groq (https://api.groq.com/openai/v1), OpenAI (https://api.openai.com/v1)
Cleanup {base URL}/chat/completions Ollama, llama.cpp server, LM Studio, vLLM, OpenRouter, OpenAI, …

The reverse is also true: earheart-stt is a standalone OpenAI-compatible transcription server, usable from any other dictation app that supports custom endpoints (e.g. OpenWhispr) or from scripts via the OpenAI SDK. See stt-server/README.md for GPU use and other models.

Platform notes

Linux

  • Auto-paste needs a keystroke tool: xdotool (X11) or wtype/ydotool (Wayland). Without one, Earheart falls back to clipboard-only and tells you.

    sudo apt install xdotool        # X11
    sudo apt install wtype          # wlroots Wayland (Sway, Hyprland, …)
  • Global hotkeys on Wayland: GNOME and KDE on Wayland prevent apps from grabbing global keys. Instead, bind a system keyboard shortcut (GNOME Settings → Keyboard → Custom Shortcuts) to:

    earheart --toggle

    Earheart runs single-instance; a second invocation just toggles dictation in the running app. The same works for pause/resume with earheart --pause.

macOS

  • "Earheart is damaged and can't be opened" on first launch means Gatekeeper has quarantined the download — the app is unsigned and not yet notarized, not corrupt. Drag it to Applications, then strip the quarantine attribute once:

    xattr -dr com.apple.quarantine /Applications/Earheart.app

    After that it opens normally. (Right-click → Open only works for the "unidentified developer" prompt, not the "damaged" one.)

  • The first dictation asks for Microphone permission.

  • Auto-paste simulates Cmd+V via System Events, which requires Accessibility permission (System Settings → Privacy & Security → Accessibility → enable Earheart). If auto-paste stops working later, use Settings → Advanced → Fix auto-paste permission to re-check it and jump to the right System Settings pane.

Windows

  • No special permissions needed. Auto-paste uses PowerShell SendKeys.

Privacy

  • With the built-in engines (the default), audio and transcripts never leave the app process — there is no network hop and no localhost socket.
  • If you point speech-to-text at an HTTP service instead, audio is held in memory and sent only to the STT endpoint you configure (e.g. 127.0.0.1 for the optional local Parakeet server).
  • Transcripts go to an external cleanup endpoint only if you switch cleanup to a remote service; the default Gemma cleanup stays on your machine.
  • History and settings live in plain local files (Electron's user data directory). API keys are stored in that settings file — on shared machines, prefer local services or OS-level disk encryption.
  • No telemetry, no accounts, no cloud.

Star history

Star history chart for cleanunicorn/earheart

Contributing

Want to hack on Earheart? It's plain JavaScript with no bundler and only two runtime dependencies (the native STT and cleanup engines). See CONTRIBUTING.md for the development setup, architecture overview, and how to build installers.

License

MIT

About

Talk to your coding agents — press a hotkey, speak your prompt, and it lands in Claude Code, Codex, or Cursor. Fully local voice dictation (Parakeet + Gemma), nothing leaves your machine. Windows, macOS & Linux.

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