EchoGraph

Changelog

What's new

Every significant change, in reverse chronological order.

v0.1.0-betaPrivate beta launchMay 2026
  • Zero-knowledge vault setup with Google OAuth
  • PDF viewer with slide text extraction via PDF.js
  • Browser-based audio transcription (Whisper-base, WebAssembly)
  • Synthetic Study Guide — Likely Zone scoring when no guide is uploaded
  • Real Red Zone scoring with uploaded study guide
  • Slide density heatmap overlay
  • Bidirectional synchronized playback — transcript ↔ slides ↔ audio
  • Anki .apkg import (card fronts seed Study Guide automatically)
  • Anki .apkg export (Red Zone flashcards, tagged and spaced-rep compatible)
  • Red Zone flashcard generation
  • Recovery Kit generation and forced download at signup
  • 500 MB encrypted storage, 3 sessions/month on free tier
  • PWA support — installable on any device
  • Local-first write-ahead buffer (IndexedDB) for resumable uploads