When a story has twenty characters, the hard part is not remembering their names but remembering how each one feels about the others. RelationCanvas is a free web app built for that problem. Drag characters onto a canvas, connect any two of them, and give each end of the connection its own label, so a one-sided crush or a hidden grudge shows up clearly instead of being flattened into a single word. Authors use the charts while drafting, fan fiction writers use them to map canon, and game masters keep one open during sessions to track party and NPC ties. Charts save as PNG or SVG files that drop straight into notes or a shared wiki. There is no sign-up, no download and no price tag; open the page and start drawing.