Killit
Safety-aware cross-platform port killer for local development workflows.
K
Killit
Case study visual placeholder
Architecture flow
1 layersProblem
Developers often kill port-hogging processes manually, risking accidental termination of important system or database processes.
My Role
Built the CLI behavior, safety classification approach, cross-platform detection flow, and programmable API surface.
Solution
A zero-dependency Node.js CLI detects listeners through native OS tools, classifies process safety, and offers an interactive TUI before termination.
Stack
Case study
Problem
Developers often kill port-hogging processes manually, risking accidental termination of important system or database processes.
Proof signal
Zero dependencies · 3-tier safety engine · macOS/Linux/Windows/Docker
My Role
Built the CLI behavior, safety classification approach, cross-platform detection flow, and programmable API surface.
Core product work
- Port detection
- Safety classification
- Interactive TUI
- API mode
Solution
A zero-dependency Node.js CLI detects listeners through native OS tools, classifies process safety, and offers an interactive TUI before termination.
A zero-dependency Node.js CLI detects listeners through native OS tools, classifies process safety with a 3-tier engine, and offers an interactive TUI before termination.
Architecture Highlights
Native OS listener detection
Three-tier process safety classification
CLI and programmable API usage
Challenges and Tradeoffs
- Supporting different OS-level process discovery tools.
- Designing safe defaults for a potentially destructive command.
Impact / Outcome
- Built a developer tool focused on safer local process management.
- Reduced risk in a common workflow by classifying processes before termination.
Learnings
- Developer tools need strong guardrails around destructive actions.
- Cross-platform CLIs work best with layered detection fallbacks.
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