MonoSplit
A full-timeline video editor built for people done with ad funnels, watermark machines, and rented creative tools.
Technical Details
Two native editors. One editing core. MonoSplit shares its timeline rules, project model, captions, templates, and serialization through Kotlin Multiplatform, while each platform keeps the media engine that belongs close to its hardware.
Android uses Jetpack Compose, Media3, a custom OpenGL pipeline, and whisper.cpp for on-device captions. Its export pipeline composes trims, speed ramps, fades, filters, timed overlays, transitions, and mixed audio locally, with no INTERNET permission declared.
iOS combines SwiftUI with AVFoundation and a custom Core Image compositor. Preview and export are built from the same render plan, so an edit is not just a preview-only trick. Apple Speech provides native caption workflows on iOS.
The editor is built for dense, touch-first timelines across phones and tablets, including larger and folding displays. It has been battle-tested on a Samsung Galaxy Z Fold 7, where the expanded canvas and timeline can be used as a proper editing surface.
MonoSplit cuts, layers, captions, grades, mixes, animates, and exports H.264/AAC MP4 locally from 480p to 4K. No cloud account, ads, watermarks, or artificial subscription gates sit between the timeline and the export.
