Voice Input Tools
Free, interactive tools for voice input power users — calculate STT costs, test your WPM, build polish prompts, and check language support. No account required.
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Click any tool to use it — no signup, no login
STT Cost Calculator
Estimate your monthly speech-to-text API cost across Deepgram, OpenAI Whisper, Groq, and AssemblyAI. Set sessions per day and clip duration — see side-by-side costs instantly.
Voice WPM Speed Test
Measure your dictation words-per-minute. Speak for 60 seconds, paste the transcription, and get your WPM with a rating. See how your speaking speed compares to typing.
LLM Polish Prompt Builder
Build a custom AI polishing prompt for your voice input workflow. Choose tone, target language, add custom dictionary terms and extra instructions — copy the ready-to-use prompt.
STT Language Support Checker
Search any language and instantly see which STT providers support it — Deepgram, OpenAI Whisper, Groq Whisper, AssemblyAI, and GLM-ASR. No signup, instant results.
Voice Command Reference
Complete list of voice commands for punctuation, formatting, and navigation. Works with OpenTypeless and other voice input tools.
Hotkey Generator
Find the perfect hotkey for OpenTypeless voice input. Avoid conflicts with VS Code, browsers, and other apps. Includes presets and conflict checker.
STT Provider Comparison
Compare 6 speech-to-text providers: Deepgram, Whisper, Groq, AssemblyAI, Rev, and Ollama. See accuracy, latency, pricing, and language support side by side.
LLM Provider Comparison
Compare 11 LLM providers for AI text polishing: OpenAI, Claude, Gemini, DeepSeek, Ollama, and more. See quality, speed, pricing, and best use cases.
Prompt Template Library
Ready-to-use AI polishing prompt templates for voice input. Professional email, casual chat, code comments, academic writing, and more. Copy and paste.
Built for Real Voice Input Users
These tools are built and maintained by the OpenTypeless team — the same people who built the free, open-source voice input app. All tools are free forever and work without an account.