TREK is a self-hosted, real-time collaborative travel planner licensed under AGPL-3.0.

• Drag & Drop Planner — organize places into day plans with reordering and cross-day moves
• Interactive Map — Leaflet map with photo markers, clustering, route visualization, and customizable tile sources
• Place Search — Google Places (photos, ratings, hours) or OpenStreetMap (free, no API key needed)
• Day Notes — timestamped, icon-tagged notes per day
• Route Optimization — auto-optimize place order and export to Google Maps
• Weather Forecasts — 16-day forecasts via Open-Meteo (no API key required), historical climate averages as fallback

• Reservations & Bookings — track flights, accommodations, restaurants with confirmation numbers and file attachments
• Budget Tracking — category-based expenses with pie chart, per-person/per-day splitting, multi-currency support
• Packing Lists — category-based checklists with user assignment, templates, and progress tracking
• Document Manager — attach documents, tickets, and PDFs to trips, places, or reservations (up to 50 MB per file)
• PDF Export — export complete trip plans as PDF with cover page, images, and notes

• Real-Time Sync — WebSocket-based live sync; changes appear instantly for all connected users
• Multi-User — invite members with role-based access
• Invite Links — one-time registration links with configurable max uses and expiry
• OIDC SSO — sign in with Google, Apple, Authentik, Keycloak, or any OIDC provider
• Two-Factor Authentication — TOTP-based 2FA with QR code setup
• Public Share Links — share a read-only view of any trip

• Lists — packing lists and to-dos with templates, member assignments, optional bag tracking
• Budget Planner — expense tracker with category breakdown, splits, multi-currency
• Documents — file manager for trips, places, and reservations
• Collab — group chat, shared notes, polls, day-by-day attendance
• Vacay — personal vacation day planner with calendar view, public holidays, and carry-over tracking
• Atlas — interactive world map, bucket list, travel stats, continent breakdown
• Journey — magazine-style travel journal with entries, photos (via Immich/Synology Photos), maps, and moods
• Naver List Import — import places from shared Naver Maps lists
• MCP — expose TREK to AI assistants via the Model Context Protocol (OAuth 2.1)

Dashboard widgets (currency converter and timezone clock) are per-user preferences, not an admin-toggleable addon — see Dashboard-Widgets.

• MCP Server — built-in Model Context Protocol server with OAuth 2.1 authentication
• 150+ Tools — create trips, plan itineraries, manage budgets, send messages, and more
• 30 Resources — read-only trek:// URIs for trips, days, places, budget, packing, journeys, and more
• 27 OAuth Scopes — granular permissions across 13 permission groups
• Pre-built Prompts — trip-summary, packing-list, and budget-overview context loaders

• User management, invite links, packing templates, global categories
• Addon management, API key storage, scheduled auto-backups
• System notices for onboarding and announcements

Admin: Most configuration lives in the Admin Panel. On first boot TREK seeds an admin account automatically — credentials come from ADMIN_EMAIL / ADMIN_PASSWORD if set, otherwise a random password is printed to the container log.