BRVTY turns any book into a structured summary and high-fidelity audio narration — in seconds. Generate a thesis, key pillars, action items, and listen to it on the way to work.
Everything stays on your device. No account required.
🔑
Get Your Free Key
BRVTY uses Google's Gemini AI. You'll need a free API key to generate summaries and audio.
Step 1 — Visit Google AI Studio
Go to aistudio.google.com and sign in with your Google account.
Step 2 — Create a key
Click Get API Key → Create API key. Copy it.
Step 3 — Paste it in Settings
Tap ⚙ in the top right → paste your key → Save. Free tier: 250 summaries/day.
✦
How It Works
① Generate
Type any book title (and optionally the author, or paste your highlights). Tap Generate Summary. Takes about 10 seconds.
② Summary
Read the thesis, key pillars, deep insights, action items, and memorable quotes. Tap a Read Next book to load that one too.
🎙
Listen & Drive
③ Audio
Go to the Audio tab. Choose Quick (3 min), Chapters (section-by-section), or Deep Dive (15–20 min full narration). Tap Generate.
④ Car Mode
Tap 🚗 for a fullscreen player optimized for driving. Your steering wheel media controls work via Bluetooth.
🔤
Make It Comfortable
BRVTY lets you tune the reading experience to your preference. Find these in ⚙ Settings → Reading Experience.
Text Size — 3 optionsA− Compact · A Default · A+ Large
Default is balanced for most screens. Bump up if summaries feel dense.
Reading Font — 3 choicesCormorant — elegant editorial Inter — clean, high readability Georgia — warm, familiar serif
You can also switch between dark and light themes in the same section.
🎧
More Features
Audiobooks
Import your own MP3, M4A, or WAV files. Stored locally, plays through the same player with bookmarks, speed controls, and car mode.
Library Vault
Settings → Export Vault backs up your entire library — summaries, audio, and notes — as one file. Import it on any device.
Document Mode
On the Generate tab, switch to Document mode to paste an article or report and get a full summary or direct audio read-back.
Tap ⚙ Settings → Show Intro to revisit this guide anytime.
⚠ No internet connection — Gemini features unavailable. Library works offline.
Book Title & Author
Context / Notes (optional)
0 chars
Document Title (optional)
Document Text
0 chars
Output
Voice Engine
Connecting to Gemini…
◈
No Summary Yet
Go to Generate, enter a book title, and create your first intelligence summary.
My Notes
Auto-saved
No book loaded
—
0:000:00
Voice
Chapters
Deep Narration
1,200–1,500 word audiobook narration — one script call, sentence-boundary chunked TTS with silence padding between segments. Complete and commute-ready.
Sleep Timer
Your Audio Files
No audio files yet — generate audio above.
Export Summary
Continue Listening
Sort
0 files
—
—
0:000:00
No audio files yet. Tap Import Audio Files to add MP3, M4A, WAV, FLAC, or AAC files. Files are stored locally in your browser.
Settings
Gemini API Key
Stored only in your browser. Calls Google's API directly. Free key at aistudio.google.com
Models
Summary
gemini-2.5-flash
FREE TIER
Audio TTS
gemini-2.5-flash-preview-tts
FREE TIER
Appearance
Light Theme
Switch to a light color scheme
Playback
Auto-play on open
Play when a book is selected
Resume position
Remember where you left off
Book covers
Fetch from Open Library
Reading Experience
Text Size
Reading Font
Help
Library Vault
Export your full library — summaries, chapter audio, and covers — as a single .folio file.
Danger Zone
Permanently deletes all books and audio from this device.
Amazon Affiliate Tag
Optional. Enter your Amazon Associates tag to earn from book purchases. Links work without a tag — adding one attributes sales to your account.
About
BRVTY v6.0 — Book Intelligence PWA Gemini 2.5 Flash · Chapter Audio · Audio File Manager All data stored locally · No account required
As an Amazon Associate I earn from qualifying purchases.
