The original BeepBox source code by John Nesky can be found here. You can download and use the source code under the MIT license. You can download an offline version of JummBox to use when you don't have access to the internet. JummBox does not collect, track, or share any user data. All song data is contained in the URL after the hash (#) mark, and JummBox running inside your browser converts that data into sound waves. No songs are ever received, recorded, or distributed by JummBox's servers. Neither Jummbus nor Jummbox assume responsibility for any copyrighted material played on JummBox. JummBox does not claim ownership over songs created with it, so original songs belong to their authors. You can find him sporadically at /jummbus.īeepBox was originally developed by John Nesky, also known as next oldest version of JummBox is available here. If you find something you like, you should let the creator know!Īnd if you see any beginners asking for advice, maybe you can help them! You can also click on the label next to each option for a description of what it does.Ĭheck out some of these songs that other people have posted on Twitter! Try playing with the buttons and menus on the right side to find out what it can do! You can then press C/V to mass copy/paste parts of your song. You can perform fine volume adjustment if you hold Control while doing this!ĪDVANCED: Click and drag on the pattern grid to make a selection. You can also click above or below an existing note to add more notes to be played simultaneously, which is called a chord.ĪDVANCED: Drag vertically from an existing note to bend its pitch, or drag vertically from above or below the note to adjust its volume. In the note pattern editor, you can click and drag horizontally on a note to adjust its duration. These are just a few shortcuts, check JummBox's edit menu for more!.Shift & Drag: select part of a pattern (long press on touch screen).F/H: move to First or Highlighted pattern.0-9: assign pattern number to selection.Shift Spacebar: play from mouse location.You won’t have all the features you’d see in a standalone emulator, but the. When JummBox has focus (click on its interface above), you can use these keyboard shortcuts: Afterplay.io is a browser-based implementation of mGBA which lets you upload a ROM and immediately start playing.

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