--- title: MacOS: PrivateTranscriber. Private Alternative to... description: PrivateTranscriber is an open-source macOS dictation app built as a privacy-focused alternative to WhisperFlow and VoiceBox. It runs fully on-device without... canonical: https://daily.dev/posts/macos-privatetranscriber-private-alternative-to-whisperflow-faster-than-voicebox-2dijljypx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: MacOS: PrivateTranscriber. Private Alternative to WhisperFlow. Faster Than VoiceBox | daily.dev og:description: PrivateTranscriber is an open-source macOS dictation app built as a privacy-focused alternative to WhisperFlow and VoiceBox. It runs fully on-device without... og:url: https://daily.dev/posts/macos-privatetranscriber-private-alternative-to-whisperflow-faster-than-voicebox-2dijljypx og:image: https://api.daily.dev/og/posts/2DIJLJYpx.png og:image:alt: MacOS: PrivateTranscriber. Private Alternative to WhisperFlow. Faster Than VoiceBox og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # MacOS: PrivateTranscriber. Private Alternative to WhisperFlow. Faster Than VoiceBox **[Medium](https://daily.dev/sources/medium_js)** · 2 min read · 0 upvotes · 0 comments ## Summary PrivateTranscriber is an open-source macOS dictation app built as a privacy-focused alternative to WhisperFlow and VoiceBox. It runs fully on-device without MLX, achieving ~100ms transcription latency (compared to ~5 seconds for VoiceBox), requires no large model downloads, and includes features like auto language detection, custom global hotkeys, hold-to-speak or tap-to-start modes, and optional LLM-based text formatting. The signed app and full source code are available on GitHub. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### What is a private, on-device alternative to WhisperFlow for macOS dictation? PrivateTranscriber is an open-source macOS dictation app built as a private alternative to WhisperFlow. It runs fully on-device with about 100ms latency, avoids collecting user data, and does not require the roughly 4GB MLX model download that VoiceBox needs. It offers custom global hotkeys, hold-to-speak or tap-to-start modes, automatic language detection, and optional LLM formatting, with source code and a signed build on GitHub. _Comparing dictation tools on privacy and speed is easier when daily.dev surfaces developer writeups like this._ ### Why is VoiceBox dictation slow despite being a popular open-source project? VoiceBox uses an MLX model for transcription, which introduces roughly five seconds of latency for a five-second dictation, making it feel sluggish despite having around 40,000 GitHub stars. This latency and the associated multi-gigabyte model download are why an alternative app, PrivateTranscriber, was built without relying on MLX, achieving about 100ms latency instead. _Developers weighing dictation tool trade-offs can find comparisons like this through daily.dev._ ## Similar posts on daily.dev - [zachlatta/freeflow: Free and open source alternative to Wispr Flow / Superwhisper / Monologue / etc](https://daily.dev/posts/zachlatta-freeflow-free-and-open-source-alternative-to-wispr-flow-superwhisper-monologue-etc-vqpbtac6m) · Hacker News · 1 upvotes · 0 comments - [I dismissed this hyped AI app for months, and now I use it for every Claude and ChatGPT prompt](https://daily.dev/posts/i-dismissed-this-hyped-ai-app-for-months-and-now-i-use-it-for-every-claude-and-chatgpt-prompt-ak3oxz93b) · XDA Developers · 0 upvotes · 0 comments --- Tags: [#swift](https://daily.dev/tags/swift), [#mac](https://daily.dev/tags/mac), [#speech-recognition](https://daily.dev/tags/speech-recognition), [#whisper](https://daily.dev/tags/whisper) [View this post on daily.dev](https://daily.dev/posts/macos-privatetranscriber-private-alternative-to-whisperflow-faster-than-voicebox-2dijljypx) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"MacOS: PrivateTranscriber. 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