Podcast production runs through a few repeatable steps, and each one has a small tool here: capture a segment with Voice Recorder, convert the exported MP3 to WAV for editing software that expects uncompressed audio, and watch Audio Oscilloscope's live waveform to check levels before you hit record. Slow Down Audio drops playback speed without shifting pitch, useful for catching a guest's mumbled line while editing.
None of this is a full multitrack editor — it's the format conversion and prep work that happens around one, running locally so a raw interview never sits on a third-party server between recording and edit. No account, no upload limit, no watermark on the audio.
Audio Spectrum Analyzer
See live frequency peaks and notes, mic or file
How Audio Spectrum Analyzer worksEvery tool runs in your browser — no upload, no account, free.