What needed to change
Short-form creators need a direct editing workflow without the complexity and performance demands of a full professional suite.
Back to work
Build Lab case study
Joy Editor
A focused video-editing application for trimming, captions, voice-over and dependable export.
Core stack
Flutter • Dart • FFmpeg • Local media processing
What I built
A creator-focused application organised around the most repeated actions: import, trim, caption, voice-over, preview and export.
Who the product serves
Short-form creators, educators, social media teams and small production businesses.
Core capabilities
Core capabilities behind the case study.
This section turns the project from a simple portfolio item into a useful breakdown visitors can understand.
Media import
Timeline trimming
Caption editing
Voice-over recording
Preview
Export presets
How the system is organised
Cross-platform Flutter application with local media processing, timeline state and export workflows.
Key implementation decisions
The product prioritises a small dependable toolset over a crowded interface.
Why the product matters
Shortens the path from raw clips to publishable content and makes common editing actions easier to repeat.
Challenges addressed
Challenges addressed behind the case study.
This section turns the project from a simple portfolio item into a useful breakdown visitors can understand.
Media performance
Export consistency
Simple touch interaction
What the work reinforced
What the work reinforced behind the case study.
This section turns the project from a simple portfolio item into a useful breakdown visitors can understand.
Creator tools gain trust through predictable performance and a clear workflow.
Selected visuals
Interface atmosphere and workflow direction.
Joy Editor product preview
Outcomes
What the project improves beyond surface-level appearance.
The strongest work usually creates better clarity, better decision-making, stronger trust, and better operational flow.
Timeline editing
Caption tools
Reliable export
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