Audio Tools & Editors
Process audio files directly in your browser. Trim audio clips, change playback speed, convert text to speech, and extract audio from video — all without uploading your files.
Our audio tools include an audio trimmer, speed changer, text-to-speech converter, speech-to-text transcriber, and video-to-audio extractor. All tools use the Web Audio API and run entirely client-side.
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Understanding Digital Audio
The Web Audio API
The Web Audio API provides powerful tools for audio processing in the browser. It can decode audio files, manipulate samples, change playback speed, and render audio to downloadable WAV files — all without server-side processing.
Audio Formats Explained
WAV is uncompressed and lossless, making it ideal for editing. MP3 uses lossy compression for smaller files. OGG and AAC offer good quality-to-size ratios. Most browsers can decode all common formats.
Speech Synthesis & Recognition
Modern browsers include built-in speech synthesis (text-to-speech) and speech recognition (speech-to-text) engines. These run locally without sending data to external servers.