Full Changelog: https://github.com/ccd97/SystemDesign.ai/commits/v1.0.0
SystemDesign.ai v1.0.0
AI-powered system design mock interviewer — draw, explain, get scored.
An Electron desktop app that turns Excalidraw into a full system design interview practice tool.
Features
- AI Interview Question Generator — one-click generation of realistic HLD questions across 14+ domains (messaging, streaming, payments, cloud, AI/ML, security, and more)
- Session Recording with Audio — captures every canvas action (drawing, moving, connecting, text edits) alongside microphone audio with millisecond-precision timestamps
- AI Interviewer Chatbot — simulated interviewer that answers clarifying questions with realistic constraints but never gives away the solution; supports text and voice input
- AI Judge & Scoring — evaluates your full session across 7 dimensions (problem understanding, architecture, component design, data model, scalability, communication, diagram quality) with 1–5 scores, strengths, and improvement areas
- Recording Playback & Review — audio player synced to event timeline, transcription badges, export to JSON
- Multi-Canvas Workspace — create, rename, delete canvases; auto-save; dark & light mode
- Configurable AI Models — swap models from OpenRouter; use free open-source models (Llama, Gemma, etc.)
Platforms (Binaries below)
- macOS (DMG)
- Windows (NSIS installer + portable)
- Linux (AppImage + tar.xz)