Show HN: Audiomass – a free, open-source multitrack audio editor for the web

pantelisk 281 points 57 comments May 24, 2026
audiomass.co · View on Hacker News

Discussion Highlights (19 comments)

HuzaifaYasin

How can we add more tracks. is there a limit?

macwhisperer

this is cool thanks for making it!

serious_angel

It seems like the inspiration went from Audacity, and with great changes to the design and feel of calmness and solidity! I've tried loading a file with XM format, yet the current state of the import logic stated "Unsupported". Is there any chance you'll support the format? For example, the following artwork is radiating charmingly in VLC: - https://cable.ayra.ch/modplayer/mods/!Others/DYNAMITE_-_Winamp_5.0RC8_crk.xm And, thank you! very much for the experiments, effort, miracles... art you do...

genericacct

Very nice. One feature id like to see is import of stem bundles as produced by various tools like suno or stemsplitter

ugh123

Is there midi support and vst support? I know that's asking for a lot =)

sgallant

This is great. I need to do audio work this coming week and was dreading Audacity.

m0nit0r

Looks promisimg. Must try the next days.

argimenes

Makes me think of Quatermass ...

algoth1

Getting the 2002 Cool Edit Pro 2.0 vibes!

yesbut

what is the theoretical file size / project size limit? what happens when the browser crashes?

ZeWaka

Not sure why you remove the tooltips from deactivated buttons

JKCalhoun

So want something like this but where the tracks are in the cloud. I want to "check out" someone's drum loop and add a guitar riff. Check it into a branch. Someone else checks out the drum+guitar, adds a bass line. Checks in. "Jamming" with other people is one of the most fun things. To the degree that you can "get close" on the web… RiffHub, anyone?

vandyswa

What's a waveform box and how does one select it?

sam1r

Significant props for accepting .flac files out of the bat. Incredible work.

kirbysayshi

looks at code, sees safety closures, function assignments, sequential var declaration Ahh I see you are one of the old ways, of the lost knowledge :) I am very nostalgic for this style of development, even though I do not miss it in a team setting at all! Super cool app you’ve made!

hnuser

looks vibe coded

djfobbz

This is a very impressive undertaking. Great job!!!

keithluu

Awesome tool. Is this the a new version? I used this few weeks ago and it looked a bit different.

shuaibird

Looks cool. It feels like an early web-based Logic Pro-style editor.

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