Sumbox - YouTube & web summarizer

About

Sumbox summarizes YouTube videos and web articles in seconds — right inside Chrome's side panel. Click Summarize on any video or article, and get structured insights without leaving the page.

🎯 WHAT YOU GET
Every summary is structured into clear sections so you can go as deep as you need:

1. TL;DR — Bullet-point highlights of the most important takeaways. Perfect for deciding if something is worth your full attention.
2. Summary — A comprehensive narrative covering all major points. Understand the full picture without watching or reading.
3. Formatted Script (YouTube videos only) — A clean, readable transcript with clickable timestamps. Click any timestamp to jump directly to that moment in the video.

⚡ BUILT FOR SPEED
Sumbox uses parallel processing to deliver results up to 5x faster than traditional summarizers. Long video? Sumbox splits the transcript into chunks, processes them simultaneously, and stitches the result together — typically in under 10 seconds, even for hour-long videos.

🌐 14 LANGUAGES SUPPORTED
Summarize content in any language and get results in your preferred language. Sumbox auto-detects the source language and outputs in whichever of the 14 supported languages you choose:
English, Español, Français, Deutsch, Italiano, Português, Polski, Nederlands, Русский, 中文, 日本語, 한국어, العربية, हिन्दी

📎 EXPORT ANYWHERE
Copy or download your summaries in the format that fits your workflow:

- Markdown (.md) — for Obsidian, Notion, and note-taking apps
- HTML (.html) — for web publishing and email
- Rich Text — for Word and Google Docs
- Plain Text (.txt) — for maximum compatibility
- JSON (.json) — for developers and data processing

🎨 CLEAN, FOCUSED DESIGN
Sumbox lives in Chrome's side panel — always accessible without covering your content. The Material Design interface includes:

- Tabbed sections for easy navigation between TL;DR, Summary, and Script
- Dark mode for comfortable reading at any hour
- Persistent state — your summary stays even when switching tabs
- Summary history — revisit past summaries anytime

💡 HOW IT WORKS

1. Navigate to any YouTube video or web article
2. Click the Sumbox icon to open the side panel
3. Press "Summarize"
4. Sumbox detects the content type, fetches the transcript or article text, and processes it with AI
5. Your structured summary appears in seconds

📋 USE CASES
- For professionals — Digest industry news, prep for meetings, evaluate sources quickly, and export to your knowledge base.
- For students — Summarize lectures, process research material, jump to specific quotes with timestamps, and study in your preferred language.
- For content creators — Analyze competitor content, research trends across multiple videos, and repurpose video summaries into blog posts or social content.
- For everyone — Decide what to watch before committing, catch up on videos you missed, and reclaim hours spent on content that wasn't worth it.

📌 IMPORTANT NOTES

YouTube videos require captions (auto-generated or manual) to be summarized
Make sure the page has fully loaded before clicking Summarize
Set your preferred output language in Settings before summarizing

🔒 PRIVACY & SECURITY
Sumbox only processes the pages you explicitly choose to summarize. We do not passively collect browsing data, and we do not sell your information. Summaries are generated using AI (Google Gemini) and are not stored on our servers. Your preferences and summary history are stored locally in your browser.

Full privacy policy: www.sumbox.app/privacy

💬 SUPPORT
Questions, feedback, or feature requests? Reach out at [email protected]
Visit www.sumbox.app for more information.