AbyssBox
A modification of UltraBox, AbyssBox lets users sketch and share instrumental music with additional effects and themes.
About AbyssBox
AbyssBox is a browser-based mod of UltraBox, which is itself a mod of BeepBox, for sketching instrumental music. It provides a pattern editor with multiple rows that can play at the same time, with upper rows for melodies or harmonies and a bottom row for drums, along with additional effects and themes compared to UltraBox. All song data is contained in the browser URL, which updates as the song is edited. To save or share, users copy the URL, with a File > Shorten Song Url option for a more manageable link; songs are not received, recorded, or distributed by AbyssBox servers.
Key features
- Sketch instrumental music in pattern-based editor
- Play several pattern rows at the same time
- Use bottom row for drums, other rows for melodies
- Add new effects beyond UltraBox base
- Choose from additional interface themes
- Save and share songs by copying song URL
Best for: People who want to sketch and share instrumental songs in a browser using a BeepBox-style pattern editor.
Good for
- Song data stays in the page URL and, according to the site, is not sent to its servers
- Site states it does not collect, track, or share user data
- Original songs belong to their authors; the tool does not claim ownership
Watch out for
- Saving and sharing requires copying the song URL; no server-side song storage is described
AbyssBox at a glance
- Category
- Music & Audio › Audio Editing & Production
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Guides for Audio Editing & Production
AbyssBox alternatives
Tools and sites you could use instead, ranked by how closely they match.
GoldBox lets users sketch and share chiptune melodies in a browser, as a modification of JummBox and BeepBox.
Sketch and share instrumental music online with BeepBox, which stores songs as text data.
UltraBox combines features from several BeepBox modifications in one music tool and provides instructions, FAQs, and patch notes.
JummBox lets users compose and share instrumental melodies in a browser, storing song data in the page URL.
Open source
19 alternativesPopular in Audio Editing & Production
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AbyssBox FAQ
How do I save and share a song in AbyssBox?
The browser URL updates as you edit. Copy and paste the URL to save and share, or use File > Shorten Song Url to make the link more manageable.
Does AbyssBox store my songs on its servers?
According to the site, no. No songs are received, recorded, or distributed by its servers; all song data is in the URL after the hash mark and is converted to sound in the browser.
Who owns music created with AbyssBox?
AbyssBox and UltraBox do not claim ownership over created songs, so original songs belong to their authors.
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