Drop a file, pick a target format, download the result. Runs entirely in your browser — your audio never leaves your device.
Three steps. Zero uploads. The entire pipeline runs in your browser tab.
Click the drop zone or drag a file in. We read it locally — no network call is made to open it.
ffmpeg (LGPL build) runs inside a Web Worker via WebAssembly. No server round-trip, no queue.
Grab the converted file with one click. Everything stays local until you choose where it goes.
Yes. No signup, no card, no daily limit from our side — only the 50MB ceiling imposed by browser conversion itself. Need bigger or batch conversions? Our paid Whipscribe product ($1 / hour, no subscription) handles any size and throws in transcription as part of the same flow.
No. The conversion pipeline is an ffmpeg LGPL build compiled to WebAssembly. It runs inside your browser tab. Your audio bytes never touch our servers for this tool. The only telemetry we record is an aggregate event per job: source format, size bucket, duration, success/failure. Never filename, never content.
Inputs: anything ffmpeg decodes — MP3, WAV, M4A / AAC, OGG, OGA, FLAC, Opus, WebM, WMA, 3GP, AMR, AIFF, and more. Outputs: MP3, WAV, M4A / AAC, OGG (Vorbis), FLAC, Opus, WebM (Opus).
We lazy-load a 32MB WebAssembly audio engine the first time you click Convert. Your browser caches it after that, and subsequent conversions in the same tab start instantly.
50MB per file. Browser memory is finite, and pushing larger files causes tab crashes on low-end devices. For larger files we redirect you to Whipscribe's server-side pipeline, which also runs transcription.
Yes — same ffmpeg core, same encoders. MP3 via LAME, AAC via the built-in encoder, OGG via libvorbis, Opus via libopus, FLAC via libflac. Quality is identical for equivalent settings.
Paste your YouTube / podcast / Dropbox URL in Whipscribe — we transcribe, speaker-label, and let you chat with the transcript. First 30 minutes free, no card.
Open Whipscribe →Cut a clip by entering start + end times. Same format in, same format out.
Video → audioPull the audio track out of an MP4 / MOV / MKV as MP3 or M4A.
TranscriptionUpload a file or paste a URL — our server transcribes and returns a searchable transcript.
SubtitlesTurn a transcript into a standard .srt or .vtt subtitle file.