LinkBrain

Send any URL to a Telegram bot. It reads the page (or repo README), summarizes it, and makes your whole library searchable by meaning — with a chat-style "ask my links" and a private web dashboard. All on Cloudflare's free tier, always on.

Deploy it How it works

What LinkBrain is

A link saver

Share any URL to a Telegram bot from your phone or desktop. Add an optional note after it, then organize it with one tap. No app to open.

A deep enricher

It reads the actual content — the article body, or a repo’s README — and a Cloudflare-hosted Gemma model writes a summary, tags, a category, key points, and a longer synopsis. GitHub repos also pull stars, language, and license.

A search engine

Hybrid search over a D1 (SQLite + FTS5) database and a Vectorize embedding index: /find ranks by meaning then keyword, and /ask answers questions from your library with citations.

Yours, always on

A single Cloudflare Worker on a Telegram webhook — no server to run, free for personal use, locked to your chat, with a private Access-gated dashboard.

Usage

Saving links Send a URL (plus an optional note). Full-content enrichment, the metadata captured, and tap buttons to organize on save.

Searching & asking /find — hybrid semantic + keyword search. /ask — a cited answer synthesized from your saved links.

Organizing Status, favorites, collections, reminders, the public List, export — plus /dupes and /organize over the embeddings.

Browsing /recent for your latest saves, /stats for the total, /help for the full command card.

Reference

Architecture The single-file Worker spine: webhook → enrich → D1 / Vectorize → reply, and how each layer is bounded.

Dashboard The private web dashboard behind Cloudflare Access — manage every link by clicking, including delete.

Where your data lives The D1 schema, the FTS5 index, the Vectorize index, and how migrations carry your links across deploys.

Security model The webhook secret, the chat-id allowlist, and the Access-gated dashboard — what each one stops.

Changelog Notable changes, from the move off the original local Python bot through semantic search and beyond.