URL Link Catalog

https://urlinkcat.pages.dev/#demo

URL Link Catalog, or URLinkCat, is a free, open-source, fully customizable, multi-user, cloud-synced and easy-to-use bookmark web app.

🏆 This project won Cloudflare Developer Summer Challenge 2021. Thank you Cloudflare for the prize box!

Who wants it?

You need it if you want to:

• Acess personal bookmarks across browsers and devices
• Acess bookmarks across work and personal accounts
• Share links with a group of people
• Collaboratively create a internet directory with firends
• Publish your up-to-date collection of your favorite AIs since 2023!

Comparison

Feature	URLinkCat	Linktree
Cost	✓ Free	✓ Free + Paid plans
Cloud sync	✓	✓
Cross-device access	✓	✓
Sharing links	✓	✓
Thumbnails	✓ Emoji / Material Design Icons	✓ Image upload / Icons
Manage links	✓ One-click editing mode toggle	✗ Complex admin backstage
Multi-pages	✓ As many as you want	✗ Create only 1 page per account
Collaboration	✓ Anyone authorized can edit	✗
Authorization	✓ No need accounts1	✓ Requires accounts ✗ less convenient
Open source	✓	✗
App size	✓ Lightweight	✗ Heavy

1: Optional password protection coming soon™

User Guide

Check out our official examples listed on https://urlinkcat.pages.dev/#demo.

1. Visit https://urlinkcat.pages.dev/#ImSuperHero123 to view the page of ImSuperHero123.^1,2
2. Manage. No need accounts. Just click bottom-right 🔒 button to toggle editing mode.³
3. Preview. Click 🔒 button again to toggle viewer mode.
4. Save to Cloud. Click the ☁️ cloud button in viewer mode. If ☁️ shift to ✔️, congratulations, your masterpiece is in the could!

Tips:

1. To make bookmark "private", use a page id hard to guess like SUxPVkVV. Search engines won't know unless you speak it out loud.
2. Visiting https://urlinkcat.pages.dev/ barely will give you a random ID.
3. You will need codename to change thumbnails and colors, and the codenames can be found from the default "How to Use" section.

Host your own instance

Infrastructure	Cost
Cloudflare Pages	$0
Cloudflare Workers	$0
Cloudflare KV database	$0
Cloudflare subdomain	$0
Total	$0

Front-end hosting on Cloudflare Pages

1. Fork me on GitHub
2. Change the config at "src/routes/App.svelte" and/or "static/data_default.json"
3. Follow the steps on Cloudflare Pages document
4. Setup "Build Configurations" as below.

Framework preset: Svelte
Build command: pnpm run build
Build output directory: /static

Your instance is now ready to use, but only within a browser tab session. To enable cloud storage, keep following steps blow.

Back-end hosting on Cloudflare Workers and KV

1. Create a new Cloudflare Workers instance on https://workers.dev/
2. Create a KV namespace and bind it to this workers instance. Default name is URLinkCat.
3. Copy & paste ".cf_workers/main.js" to Cloudflare Workers Quick Edit.
4. Click "Save and deploy" on Quick Edit. (wrangler not required)

Double-check if cf_workers value in "src/routes/App.svelte" matches your back-end address.

Now you should find your instance up and running!

Developer notes

Infrastructure	Purpose
Cloudflare Pages	Static web files
Cloudflare Workers	Network requests handler, database connector
Cloudflare KV	NoSQL database

Front-end	Purpose
Svelte	Framework / Compiler
Papier	CSS library
Material Design Icons	Icon library

Architecture:

                ┌────────────x.pages.dev──┐
                │                         │
                │   ┌────────┐            │
                │   │.svelte │            │
                │   └─┬──────┘            │
                │     │                   │
                │     │ compile           │
                │     ▼                   │
┌─────────┐     │   ┌───────────────┐     │   ┌───────────────┐    ┌──────────┐
│  User   ├─────┼──►│.html/.css/.js │◄────┼──►│y.z.workers.dev│◄──►│Workers KV│
└─────────┘     │   └───────────────┘     │   └───────────────┘    └──────────┘
                │                         │       middleware         database
                └─────────────────────────┘
                      frontend

Contribution

Feel free to send PR. Consider following improvements:

• Change orders by dragging
• Optional password protection
• Depolyment on other playforms (vercel, deno deploy, render.com, etc.)
• Open a group of links at once by a single click (firefox bookmark toolbar "Open All in Tabs")