Private voice calculator
Record an arithmetic question, transcribe locally, review the expression and calculate.
Say it. Review it. Calculate.
Brackets, powers and percentages. Example: 1200 * (1 + 18%) / 3.
Local Whisper download is explicit. English arithmetic only; say numbers as digits when reviewing. No automatic calculation of recognised speech.
Turn your calculation into text.
Whisper Tiny runs on this device. Speech model and runtime downloads are explicit. Recognition can be inaccurate, especially mixed languages, quiet speakers and overlapping speech. This build accepts up to 10 minutes. Browser audio decoding limits apply to video containers.
Choose a recording and explicitly allow the local speech model download.
Result
This session
Your last ten calculations appear here. Nothing is saved after leaving.
Percent means divide by 100: 200 + 10% = 200.1. For a 10% increase, use 200 * (1 + 10%). Powers bind before multiplication and unary signs, so -2^2 = -4. Floating-point results are approximate.
A little guidance.
How to use private voice calculator
- Type an expression, or explicitly download the local speech model and choose or record audio.
- Review the settings and the stated limitations.
- Review the expression, choose Calculate, then copy the result.
Formats and compatibility
Audio uses browser decoding and a self-hosted local Whisper model. Microphone recording requires permission and a secure browser context. Typed arithmetic works without a model. See browser compatibility.
Limitations
Explicit local Whisper download required. English arithmetic vocabulary is limited; review every recognised number. Typed calculation remains available without a model.
Questions, answered.
Do my files leave my device?
Processing adapters run in your browser. Fonts and code are served from this site. A peer transfer is a separate, explicit transmission; this tool never sends your content to an AI service.
Can I use it offline?
This build needs its code assets to load. Verified, installable offline packs are a launch requirement and are still in development.
What if my inputs are invalid?
The workspace displays a specific error. Try a smaller synthetic example or a supported format. Keep your originals and review exported files before relying on them.
Deeper guide: Calculate bill percentages and review a spoken calculation ↗