WebLenWebLen
Local-first. Multi-modal. Built for deep reading.

Your AI Knowledge Companion for the Open Web.

WebLen turns Articles, Videos, PDFs, and Code Repos into a structured, interconnected local knowledge base.

Add to Chrome - It's Free
No account required
Local-firstGalaxy ViewRAG ChatVideo TranscriptPDF
Galaxy View screenshot
Galaxy View
3D tilt preview
Galaxy View visualization
v2.2 Galaxy View

Connect the Dots. Literally.

Your reading history isn't just a list. It's a universe. WebLen visualizes connections between every article, video, and paper you’ve analyzed.

See clusters and bridges across topics in seconds.
Click any node to restore summaries, graphs, and context.
Find surprising connections without forcing abstractions.
Designed for exploration, not just storage.
Content capability

Understand more than articles.

Multi-modal extraction + page-type sniffing, tuned for real-world websites and messy pages.

Watch Less, Learn More.

YouTube / Bilibili transcript analysis, key moments, and creator context—without rewatching.

Decode GitHub Repos.

One-click repo overview: architecture, modules, and a clean mental model for onboarding.

Research Faster.

Local PDF parsing for papers and reports. Extract structure, concepts, and references.

Your Data Stays Local.

IndexedDB library by default. You control what gets analyzed and what gets synced.

Environment Sniffing.

Auto-detect page types (article / video / forum / repo / PDF) and apply the best extractor.

Export & Share.

Export summaries and outlines to Markdown for your notes, docs, or knowledge base.

Multi-language UI.

Switch languages instantly (En / Zh / Ja / Fr) with consistent, readable typography.

v2.4 RAG Chat

Chat with your Library.

Don't just chat with one page. Ask questions based on your entire reading history—grounded in your own knowledge.

Auto-retrieves related reads when you ask a question.
Combines page context + library memory for sharper answers.
Clear, traceable references—so you can verify and revisit.
Context-aware Q&A
Hybrid: page + library
Summarize how this concept evolved across my recent readings.
I found 3 related articles in your library and compared their arguments to build a timeline. The key shift is from “X” to “Y”, driven by …
Tip: When references are used, WebLen can surface a “Memory Recall” capsule for one-click revisit.