How to convert .logicx to .als

.logicx is Logic Pro's project package and .als is Ableton Live's set file — they're not interchangeable, and renaming the extension won't work. You convert .logicx to .als by rebuilding the project. Doseedo does it online: upload a zipped .logicx, download a native .als.

What .logicx and .als actually are

A .logicx is a macOS package — a folder Logic presents as a single file — containing your project data, references to audio, and Logic-specific settings. An Ableton .als is a single gzipped XML document describing tracks, devices and clips. They store the same musical ideas in completely different structures, and there's no shared interchange format between them.

Why renaming doesn't work

Changing project.logicx to project.als just gives Ableton a file it can't parse — the bytes inside are still Logic's, not Ableton's XML. To get a working .als, something has to read the Logic project and rebuild it in Ableton's format. That's what a converter does.

Convert .logicx to .als online

1. Zip the .logicx. Because it's a folder, right-click → Compress to make a .zip.
2. Upload it at doseedo.com/convert/logic-to-ableton — the direction is detected from the file.
3. Download the .als and open it in Ableton Live.

What carries over (and what's approximated)

Carries cleanly: tracks (names and colours), audio clips with fades and clip gain, MIDI notes, CC and pitch bend, tempo, time signature and tempo/meter maps, markers, automation, buses and sends. Off-rate audio is resampled to your Ableton sample rate. Approximated: stock compressor/reverb/delay map to native devices, but other plugins are placed without full preset state, and warp markers are lossless only on a desktop round-trip. The full list is on the breakdown page.

Going the other way (.als → .logicx)

Doseedo converts both directions. If you need to take an Ableton set into Logic instead, use the Ableton to Logic converter — drop an .als and get a native .logicx back.