Diagram Editor
HashBin • saved diagrams load from a 256t CID in the URL
Not saved OK hash: 0 chars
Edit text → diagram updates → URL updates. Drag nodes → positions saved in URL.

Diagram definition language

# starts a comment. Inline comments are supported.
Node line: n [size] [shape] [color] [url] [text...]
Edge line: a -> b (-> c ...) [size] [lineStyle] [color] [url] [text...]
Attribute order is fixed: size, style, color, URL fragment, text — but any can be omitted.
URL token: /example.com becomes https://example.com. You can also use https://... directly.
A line containing only a supported color name sets the diagram background color.

Reserved words

Node shapes (style)
    Node sizes
      Colors
        Edge line styles (style)

          Interactions

          drag move nodes hover see node/edge text click follow node/edge link
          Tip: use Commit snapshot to create Back/Forward checkpoints while you edit.

          Saving on HashBin

          Save to HashBin uploads the source and node positions to hashbin.org, paid from your account balance (usually $0.01). The URL becomes #256t=<CID>, a short link anyone can open; the diagram is fetched from 256t.us.
          The first save asks you to Connect: you sign in on hashbin.org and approve this editor. This browser then stays connected (renewed each time you use it, for up to 30 days idle) until you press Disconnect or remove the editor from your HashBin account. Diagrams are kept for your account's default retention.
          Saved content can't change, so editing a saved diagram switches the URL back to the long #h1= form until you save again. Saving an unchanged diagram again extends how long it's kept.
          #256t= also opens any plain-text file on HashBin as diagram source.
          Shareable state: source + node positions are encoded in the URL hash, or saved on HashBin and referenced by CID.
          Try: edit the text, then Save to HashBin for a short link.

          Save to HashBin

          Saving stores this diagram on hashbin.org, paid from your account balance, and replaces the URL with its 256t CID.

          Connect your HashBin account first: you'll sign in and approve this editor on hashbin.org, then come back here with your diagram intact. This browser stays connected, so you won't need to do this again.