LANBin

A simple pastebin + file sharing server for your local network. No accounts, no auth, no cloud — just paste text or toss files between your devices.

I wanted something like Pastebin for quick sharing between my various devices — my phone, a guest's laptop, my desktop, the kitchen computer. Something I could just fire up and immediately start tossing links and snippets around without signing into anything.

It is evolving into a kind of dashboard for my LAN.

It goes without saying but I need to really underline that there is NO AUTHENTICATION — that's kind of the idea, quick and dirty to share links and stuff back and forth without having to create user accounts and permissions. Furthermore, it includes file upload and a remote file browser, and would be trivial to exploit for arbitrary code execution. This is a LAN tool. Don't expose it to the internet unless you enjoy chaos.

• Create and share text snippets from any device on the network
• Syntax highlighting for 15+ languages (Python, JS, Bash, SQL, Go, Rust, etc.)
• URLs are automatically clickable
• Pin important snippets to the top
• Set expiration (1 hour, 1 day, 1 week, or never)
• Copy to clipboard
• Source IP and timestamp on each snippet

• Upload any file type — drag and drop or click to browse, multiple files at once
• Download files from any device on the LAN
• Image thumbnails with gallery view
• File size display
• Delete files when you're done with them

• Browse the host filesystem from any device on the network
• Navigate with breadcrumbs or type an absolute path
• Create new folders
• Upload files to any directory
• Rename files and directories inline
• Delete files and directories (root-level paths like /home or C:\Users are protected from deletion and rename)
• Back up files before replacing them (creates a .bak copy, won't recursively back up .bak files)
• Multi-file drag-and-drop upload
• Windows drive letter support

• Hit the + button in the navbar to add your own bookmarks
• Links persist across restarts (stored in navlinks.json)
• Each link gets a tiny × to remove it when you're done
• Handy for linking to other services on your LAN

• Live CPU, memory, and disk I/O meters in the navbar
• Color-coded bars — green under 70%, orange 70-90%, red over 90%
• Polls every 2 seconds via a background sampler thread

• Dark theme with purple accents (light mode is for psychopaths)
• QR code so you can pull it up on your phone instantly
• Random ASCII art banner on each page load (pretty 1337)
• Responsive layout for mobile
• Toast confirmations before destructive actions

You'll need Python 3 with Flask and psutil:

pip install flask psutil
python3 LANBin.py

It'll tell you the IP and port in the terminal. Default is port 5000.

LANBin.py          — the whole server
templates/
  home.html        — main paste + file upload page
  snippet.html     — individual snippet view
  browser.html     — remote file browser
banner.txt         — ASCII art banners (separated by ---)
files/             — uploaded files live here
snippets.json      — created at runtime, stores your snippets
navlinks.json      — created at runtime, stores your custom nav bookmarks

This thing has zero access control by design. Anyone on your network can read, write, upload, and browse. That's a feature, not a bug — but it does mean you should only run this on networks you trust.