UD5 Toolkit
Active ↔ Passive Voice Converter – Rewrite Sentences
Convert a sentence from active voice to passive voice and vice versa. Helps you understand and practice the grammatical structure for clearer writing.
Tag: Voice Tools - Record & Synthesize
12+ toolsOnline Audio Recorder - Record Voice & Export WAV
Record audio from your microphone and export as a WAV file. Monitor levels. Processed entirely in your browser.
Online Voice Recorder & Downloader - Mic to WAV
Record audio from your microphone and save as WAV file. Visual waveform while recording. Simple and privacy-friendly; audio stays in your browser.
Online Audio Recorder - Record Voice & Export WAV
Record audio from your microphone and export as a WAV file. Monitor levels. Processed entirely in your browser.
Text to Speech Reader - Online Listen to Any Text
Paste or type text and have it read aloud with natural voices. Control speed and pitch. Uses browser's built‑in TTS.
Voice Memo Recorder - Online Record & Download Audio
Record audio directly from your microphone and download it as a WAV file. Perfect for quick notes. No upload, fully offline support.
Text to Speech - Online Free TTS Reader & Converter
Type or paste text and have it read aloud by your browser's speech synthesis engine. Control voice, pitch, and rate. No download, works offline.
Voice Pitch Detector - Online Live Mic Frequency
See the fundamental frequency (pitch) of your voice in real time using auto‑correlation. For singers and speech training. No upload.
Speech Synthesis Demo - Online Text to Voice with Controls
Write text and pick a voice, rate, and pitch to test your browser's speech synthesis capabilities. No download.
Human Beatbox Soundboard – Online Play & Record Beat
Click pads with mouth drum sounds (kick, hi‑hat, snare) to create a beatbox rhythm. Record & playback.
Speech Recognition Tester - Online Web Speech API Demo
Test your browser's built‑in speech recognition. Speak and see the transcribed text appear live. Must‑have for voice app devs.
Voice Pitch Chart - Online Soprano to Bass Reference
Interactive piano showing typical vocal ranges from Bass to Soprano. Highlight your range. For choir members.