MumbleFlow
Local voice-to-text. No cloud. No subscription. $5 once.
MumbleFlow launched on June 21, 2026 with 2 votes.
What it does
MumbleFlow is a fully local speech to text and voice to text app. Sub-second offline transcription powered by whisper.cpp. No cloud, no subscription — $5 one-time purchase. Available on macOS, Windows & Linux.
Local speech to text, polished dictation, Oat meeting notes, and cited search. MumbleFlow for Apple Silicon Macs, macOS 26+. $5 once.
Say what you mean, even while you’re figuring it out. MumbleFlow turns natural speech into polished text on your Mac. As AI learns to understand intent and take action, your voice becomes the starting point. Hold Fn, say the rough version, and release. MumbleFlow removes fillers, follows your corrections, and adds punctuation, paragraphs, or a numbered list. One finished result lands in your focused app—with a copy on your clipboard. Your thoughts can sound like thoughts. Meet Oat, your local meeting workspace. Explicitly record your microphone and selected computer audio. Follow a live transcript, catch up on the last five minutes, and revisit decisions, action items, and open questions.…from mumble.helix-co.com
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Hey HN! Braden here, creator of Whispering, an open-source speech-to-text app. I really like dictation. For years, I relied on transcription tools that were almost good, but they were all closed-source. Even a lot of them that claimed to be “local” or “on-device” were still black boxes that left me wondering where my audio really went. So I built Whispering. It’s open-source, local-first, and most importantly, transparent with your data. Your data is stored locally on your device, and your audio goes directly from your machine to a local provider (Whisper C++, Speaches, etc.) or your chosen…
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