Documentation
Documentation
Everything you need to master PIANO LouvorJA
Getting Started
PIANO LouvorJA is a web application that works on any device with a modern browser. No installation required — just open it in your browser.
- 1Open the app in your desktop or mobile device's browser.
- 2Click 'Install app' or use the browser shortcut to add to home screen.
- 3Done! The app works offline after the first load.
For the best worship experience, use a desktop with dual monitors: one for control and one for projection.
Media Center
Manage albums, hymnals and song collections.
Player with 3 modes
Hymnals and albums
Sing-along mode
Hymnal
Search, playback and export of Adventist hymnal songs.
Quick search by number or title
Sequential playback
Export to PDF or print
Collections
Create and manage custom collections and playlists for any occasion.
Online and custom collections
Drag and drop to playlist
Sing-along mode with lyrics
Liturgy
Build and organize the complete service order.
13 item types
Drag and drop
Per-item countdown
Bible
Search, favorites and verse projection.
Multiple versions
Quick search
Direct projection
Multi-screen Projection
Set up secondary screens and projection.
Independent output
Multi-screen
Full control
Streaming
Integration with OBS, vMix and streaming platforms for online worship.
Custom CSS for lyrics display
OBS and vMix integration
Output to YouTube and Facebook
Utilities
Clock, stopwatch, timer and raffle.
Clock and stopwatch
Countdown timer
Raffle
Settings
Customize appearance, projection and preferences.
Appearance
Projection
Multi-screen
Keyboard Shortcuts
Speed up your workflow with shortcuts.
| Action | Shortcut |
|---|---|
| Play/Pause | Space |
| Next track | → |
| Previous track | ← |
| Volume + | ↑ |
| Volume - | ↓ |
| Fullscreen mode | F |
| Toggle projection | P |
| Quick search | Ctrl+K |
FAQ
Is PIANO LouvorJA really free?
Yes! PIANO LouvorJA is 100% free and open-source. There are no subscriptions, ads, or data collection. All code is available on GitHub.
Does it work without internet?
The desktop app works 100% offline after downloading media. The web version requires internet connection to function. The APK app also works without internet, as long as content is downloaded locally and devices are on the same network.
Which devices can I use it on?
PIANO works on any device with a modern browser: desktop (Linux, macOS, Windows), tablets, and phones. For the best multi-screen projection experience, we recommend desktop.
Where is my data stored?
The desktop app stores data (hymns, liturgy, settings) locally on your device. The web version requires internet connection and does not store persistent data. When you submit the contact form, your information (name, email, message) is transmitted via Web3Forms so we can reply. See our Privacy Policy for full details.
How do you protect my privacy?
PIANO LouvorJA complies with GDPR and LGPD (Brazilian General Data Protection Law). The website uses no tracking, analytics, or advertising cookies — only a technical cookie to remember your preferred language. We do not sell or share data with third parties for marketing. See our Privacy Policy for more information.
How do I get support or report an issue?
You can reach us through the contact form on the Contact page, or open an issue directly on our GitHub repository. For urgent issues during a service, see the troubleshooting FAQ entries below.
How is the application updated?
PIANO LouvorJA is a web application. Updates are applied automatically when you reload the page. No manual download or installation is required. You always have the latest version.
What if the application does not load or shows an error?
1) Reload the page (Ctrl+F5 to clear cache). 2) Check your internet connection on first access. 3) Clear site data in your browser settings. 4) Try incognito mode to rule out conflicting extensions. 5) If the problem persists, report it via the contact form or GitHub with browser and device details.
How can I contribute to the project?
The project is open-source and accepts contributions on GitHub. You can report bugs, suggest features, submit pull requests, or help translate to other languages.