1
AbyssBox
choptop84.github.io/abyssbox-appAlso covers audio editing · same kind of website
A modification of UltraBox, AbyssBox lets users sketch and share instrumental music with additional effects and themes.
Alternatives
The Best UltraBox Alternatives in 2026
3 alternatives1 free · 0 open source
Looking for something like UltraBox? Here are 3 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan.
UltraBox combines features from several BeepBox modifications in one music tool and provides instructions, FAQs, and patch notes.
Top picks at a glance
First suggestionAbyssBoxA modification of UltraBox, AbyssBox lets users sketch and…Free or freemium optionplugdataBased on Pure Data, plugdata provides visual audio patching…Another optionGoldBoxGoldBox lets users sketch and share chiptune melodies in a…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | AbyssBox | — | Not stated | Web |
| 2 | GoldBox | — | Not stated | Web |
| 3 | plugdata | Free | Not stated | iOS, Linux, macOS |
All UltraBox alternatives
2
GoldBox
aurysystem.github.io/goldboxAlso covers audio editing · same kind of website
GoldBox lets users sketch and share chiptune melodies in a browser, as a modification of JummBox and BeepBox.
3
Also covers audio editing · free
Based on Pure Data, plugdata provides visual audio patching with desktop, mobile, and plugin formats listed for several platforms.
No alternatives match this filter.
Alternatives to similar tools
TopicAudio Editing & Production · 158 sites Best-of list8 Best Free Audio Editors in 2026 for Voice and Music ListingUltraBox details
What is the best alternative to UltraBox?
Based on features, tags and platforms, the closest alternatives to UltraBox are AbyssBox, GoldBox, and plugdata.
Is there a free alternative to UltraBox?
Yes. plugdata is free or offer a free plan.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative