audio

Audio Trim — Trim audio to a specific start–end range with optional fade in/out. Decodes any browser-supported format (MP3, WAV, OGG, M4A, FLAC) and exp...

Audio Normalize — Boost or attenuate audio to a target loudness — peak (max amplitude) or RMS (average energy). Exports a lossless WAV. Useful when mixi...

無料のオンラインオーディオピッチ変更＆速度変更ツール。半音単位でのピッチ調整や、再生速度の変更をブラウザ上で安全かつ即座に処理できます。

無料のオンライン音声逆再生ツール。音源をアップロードしてブラウザ上で逆再生処理を行い、逆回転させた無劣化WAVファイルをダウンロードできます。

Audio BPM Detector — Calculate the Beats Per Minute (BPM) of any song or audio track instantly. Simple, fast, and runs entirely in your browser using We...

Audio Fade In/Out — Smooth out the beginning and end of your audio tracks with custom fade durations. Upload, preview, and download your faded audio in ...

Audio Joiner — Join two or more audio tracks together seamlessly. Reorder your clips, preview the merged timeline, and export your combined file locally.

Audio Speed Changer — Change the playback speed of any audio track instantly. Perfect for transcribing interviews, practicing music parts, or listening ...

Audio Waveform Editor — Import audio files to analyze amplitude profiles. Trim start and end offsets, add fade curves, and export to WAV format.

Free online audio studio editor. Trim, fade, normalize, pitch-shift, reverse, change speed, and detect BPM of audio files 100% in your browser.

Real-time speech-to-text via browser speech recognition. Live transcription, continuous mode, language picker. Chrome/Edge only. Private — no upload.

Free online audio format converter. Convert between WAV, MP3, OGG, M4A, FLAC, and AAC directly in your browser. No upload — fully client-side with Web Audio API.

Free online text to speech reader. No signup, no upload — works entirely in your browser. Fast, private, and free forever.

Morse Converter — Convert text to Morse code and Morse code to text. Listen to the Morse code audio playback.