Audio format conversion is the unsung middle layer of every podcast, music and education workflow. Your iPhone records in M4A, your audiobook arrived as AAC, your podcast host wants MP3, your DAW imports WAV. The Audio Tools hub on Ai2Done handles the every-day audio conversions with the same ffmpeg-via-WebAssembly engine that powers the Video Tools hub, running entirely on your device.
The most-used flows are MP4 to MP3 for extracting podcast / lecture / music-video audio into a portable file, M4A to MP3 for converting iPhone voice memos into a universally compatible format, AAC to MP3 for legacy compatibility, and AAC to WAV for opening files in audio editors that expect uncompressed input. Each tool lets you choose target bitrate (128, 192, 256, 320 kbps for MP3) and sample rate.
The Extract Audio tool is a video-to-audio converter optimised for podcast workflows: drop a video, choose MP3 or WAV, get a clean audio file ready for editing. It strips video without re-encoding the audio when source codecs allow, so the result is a true 1:1 copy of the soundtrack rather than a re-encoded approximation.
Privacy follows the rest of Ai2Done: the source file never leaves your device, no quota, no watermark. Heavy users include podcast editors stripping audio from video interviews, music enthusiasts archiving live recordings, language learners saving audio from foreign-language videos, and educators repurposing lecture recordings into audio-only formats for accessibility.
Pair this hub with the Video Tools hub when your source contains video, the Video Downloader hub when sourcing from social platforms, and the Productivity hub for general document workflows. For format conversions specifically (when you already have the right format but need a different one), the per-tool naming makes navigation direct: pick the tool whose name matches your source-to-target arrow.