Hey HN,I built Crisper because every dictation tool I tried either sent audio to the cloud or gave me raw, messy transcripts I still had to fix.Crisper runs entirely on-device — no network calls, no account, no subscription. It does two things in sequence: transcribes using a speech model, then runs a local LM pass to strip filler words, fix grammar, and make the output sound intentional. The whole thing takes ~1–2 seconds on Apple Silicon.A floating hotkey pill sits above every window. When you re done recording, it auto-pastes back into whatever app you were in before — Slack, Notion, VS Code, anything.A few things I m happy with: - Three recording modes (toggle, hold-to-record, re-paste last) — all rebindable - Full transcript library with source app, timestamp, and audio playback - Fully offline after first-run model downloadFree to download. Would love feedback on the AI polish quality especially — that s the part I m still tuning.https://speakcrisper.com