Open AUP3 files in your browser
The project Audacity saves, with all its audio inside, sent to a co-host or an editor. Open one right here, see every track and label, and hear it mixed. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your project opens as its arrangement: the tracks down the left in their colors, and their clips along the bars with their notes drawn small and the waves of their audio, under the tempo and markers.
- Every track and clip • Zoom from the whole song to a beat
- Plugins and samples • A tab each, missing samples marked
- Play • The notes in General MIDI sounds, Audacity's own mix
- Export • Save as MIDI, WAV, MP3 or CSV
About AUP3
Audacity has been the free audio editor for Windows, the Mac and Linux since 2000, used for podcasts, voice-overs, lessons and cleaning up recordings. Audacity 3.0, in 2021, moved its projects into one .aup3 file, where Audacity 2's .aup kept the audio in a folder beside it.
An AUP3 is a SQLite database: the tracks, clips, gains, pans and labels as compact binary XML, and every clip's audio in blocks of samples, each with a summary for drawing its wave. A project of an hour in stereo runs past a gigabyte.
Filepeek reads it in your browser. Each track opens with its clips' waves along the time, and label tracks with their labels. Play mixes the tracks as Audacity does, with each track's gain and pan, mute and solo, and Export saves the mix as WAV or MP3. Audacity 2's AUP opens too, its clips and labels without their waves, which live in its _data folder.
Audacity project
.aup3 • .aup
Format
- MIME type
- application/vnd.sqlite3
- Made by
- Audacity
- Released
- 2021
Inside the file
- Holds
- Tracks, clips, labels and the audio
- Audio
- Inside, in blocks of samples
- Plays
- Mixed, as Audacity mixes it
- Format
- A SQLite database
Opens in every browser
Filepeek opens and plays Audacity 3's projects in Chrome, Edge, Firefox and Safari, and shows Audacity 2's AUP without its audio. On their own, browsers only download them.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open AUP3
- WindowsAudacity, free
- MacAudacity, free
- iPhone and iPadNo app opens it
- AndroidNo app opens it
Questions
How do I open an AUP3 file without Audacity?
Drop it on this page or press Peek an AUP3. It opens with every track's waves and plays mixed in your browser, on Windows, a Mac, an iPhone or Android, with nothing to install.
How do I turn an Audacity project into an MP3?
Open it, choose Export, then Save the mix as MP3 or WAV. The tracks are mixed with their gain and pan, mute and solo, as Audacity plays them.
How much of a long project plays?
Its first 30 minutes on a computer and its first 10 on a phone, mixed as it opens, and a note says when it's longer. Every clip's wave still shows along the whole project.
What about Audacity 2's AUP files?
An AUP is only the project's XML, and its audio lives in the _data folder beside it in thousands of small files. Filepeek shows its tracks, clips and labels, without their waves or sound.