AI Speech-to-Text

Mispher

Mispher turns speech into clean text anywhere on macOS, then goes further with dictation cleanup, rewrite-in-place, translation, and an on-device agent that plans, uses tools, and answers.

What is Mispher?

Mispher is a macOS app that provides on-device speech-to-text, dictation cleanup, rewriting, translation, and an AI agent, all running locally on Apple Silicon without any cloud dependency.

Mispher vs Similar AI Tools

Pricing ModelFreeFreeFree, Freemium, Free TrialFree
Free Credits
Key Features
  • Fast, accurate speech-to-text with streaming
  • On-device dictation cleanup (punctuation, capitalization, filler words)
  • Rewrite selected text in any app using voice commands
  • On-device transcription via Apple's Speech framework, no network calls
  • Global, fully rebindable keyboard shortcut (default ⌘⇧D)
  • Live waveform and partial transcript while speaking
  • Smart AI cleanup removing ums, fillers, and false starts
  • 50+ language support with automatic detection
  • Custom dictionary for names and jargon (Pro)
  • On-device dictation with SpeechAnalyzer
  • Smart Cleanup to remove filler words
  • Personal Dictionary for custom terms
Pros
  • Complete privacy: audio never leaves the Mac
  • Works fully offline, no internet required
  • 100% on-device, ensuring privacy
  • Small app size (4 MB) and low memory usage (~60 MB)
  • Automatically removes fillers and fixes punctuation
  • Works across all apps without switching windows
  • On-device processing ensures privacy
  • No API key or cloud subscription needed
Cons
  • macOS only, requires Apple Silicon
  • Model downloads are large and must be managed manually
  • Requires macOS 26 (Tahoe) and Apple Silicon
  • Intel Macs not supported (older versions available but send audio to Apple)
  • Free plan limited to 1000 words per week
  • May occasionally mishear uncommon names
  • Requires macOS 26 and Apple Silicon
  • Limited to Apple's on-device models
Best For
  • Privacy-conscious users
  • macOS users needing offline dictation
  • macOS users seeking a private, offline dictation tool
  • Developers and power users who want to dictate code or commands
  • Busy professionals who write emails or messages frequently
  • Non-native speakers wanting polished text in multiple languages
  • Mac users who want private dictation
  • Professionals writing emails and documents

How to use Mispher?

  1. 1Press and hold the trigger key (default left Option) to display the radial dial.
  2. 2Aim at a mode (Transcribe, Translate, Rewrite, or Ask) by flicking the cursor or pressing an arrow key.
  3. 3Speak while holding the key, then release to insert the result.
  4. 4Alternatively, assign shortcut keys for each mode.

Mispher Key Features

  • Fast, accurate speech-to-text with streaming
  • On-device dictation cleanup (punctuation, capitalization, filler words)
  • Rewrite selected text in any app using voice commands
  • Translate speech to text in ~40 languages
  • On-device AI agent (DeepAgent) that plans, uses tools, and answers questions
  • MCP tools support for filesystem, web, and custom servers
  • Fully offline and private, no account or telemetry
  • Open source

Mispher Use Cases

  • Dictating notes, emails, or documents hands-free
  • Cleaning up dictated text for polished writing
  • Rewriting or editing text in any application
  • Translating speech into text for multilingual communication
  • Asking questions and getting answers without leaving the current app
  • Automating tasks via local AI agent with tool use

Mispher Pricing & Free Credits

Mispher currently operates on a Free model.

This tool is completely free to use

Free

$0

Open source and free to use. No paid plans or subscriptions.

Mispher Pros & Cons

Pros

  • Complete privacy: audio never leaves the Mac
  • Works fully offline, no internet required
  • No accounts or registration needed
  • Open source, auditable by anyone
  • Fast local processing on Apple Silicon
  • Supports multiple modes (transcribe, rewrite, translate, agent)

Cons

  • macOS only, requires Apple Silicon
  • Model downloads are large and must be managed manually
  • Limited to the Mac ecosystem, no mobile or web support
  • Agent capabilities depend on downloaded LLM models

What is Mispher best for?

  • Privacy-conscious users
  • macOS users needing offline dictation
  • Writers and editors wanting voice-controlled rewriting
  • Multilingual speakers who need quick translation
  • Power users exploring on-device AI agents

Mispher FAQ

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