Audacity 4.0 Is Here: Free Open-Source Audio Editor Gets Ableton-Level Precision Tools

A completely free audio editing program has managed to build automation tools on par with what you'd find in Ableton Live 12 or Pro Tools—DAWs that typically cost hundreds of dollars. That's the headline takeaway from Audacity Version 4.0. Developer Muse Group released the update on September 3, 2026, marking the biggest overhaul the software has seen in years, five years after the controversial Version 3.0 launch.

The most obvious interface change is the long-awaited dark mode. The overall look has gotten more vibrant too—audio clips are now color-coded, and UI elements like gain sliders come in brighter hues. But if you're not a fan of the new look, you can opt to keep the old classic appearance during setup, meaning you're never forced to adopt this update's visual language.

The changes to editing logic are even more noteworthy. The non-destructive editing concept, which began taking shape back in Version 3.2, has been significantly expanded here: clips can now overlap each other, and trimming backward past the overlap point will reveal the previously hidden audio underneath. Multiple clips can also be selected simultaneously, letting you drag a single control point to trim them all at once, or group them together for more complex edits.

Anyone who's used Ableton Live or Pro Tools will immediately recognize the new envelope tool—click to create draggable control points that adjust parameters like gain, with the waveform updating in real time so you can spot redlining sections at a glance. There's also a new one-click split tool, which works similarly to the cutting tools found in other creative software like Adobe Premiere or Logic Pro.

Zoom in far enough now and you can edit right down to the sample level, which comes in handy for clips that are almost perfect but need just a tiny tweak. Every track has also gained its own dedicated meter, making it easier to spot which track is clipping in a mix.

One more controversial change: the sync-lock feature, which previously allowed multiple clips to be edited in sync, has been removed. In its place, Muse Group has added new keyboard shortcuts to replicate similar functionality. This update also brings expanded plugin support among other changes, all detailed more fully on the official Audacity 4 product page and in an accompanying YouTube video.