Interactive editor
Add people, connect them, and export a clean PNG. Scroll down later for examples, creator use cases, and FAQ.
Connect characters with a line.
Family, dramas, novels, manga, TRPG — anything fits.
Open in your browser and start right away.
No sign-up · no install · instant
Create diagrams intuitively with drag & drop. No coding required.

10-color palette and image uploads let you build unique diagrams.

Your work is automatically saved in the browser — safe to close anytime.

Easily share to X (Twitter), LINE, Facebook, and more.

Export images in high resolution — perfect for presentations and print.

Core editing and standard export are free. Upgrade only if you want HD export.

Grasp complex relationships at a glance. Great for avoiding spoilers.

Organize plots for creative writing or use as reading notes.

Visualize team roles and relationships for smoother communication.

Organize family connections and clearly show kinship.

Perfect for studying history — visualize complex political relationships.

Map out partners and stakeholders for strategic planning.
Just type a name and pick a color. You can upload images too.
Pick two people and label them: "lover", "best friend", anything.
Drag freely, or tap "Auto Arrange" for an instant layout.
One-click PNG export. Share to social media in a tap.
Organize your novel's cast, map out manga character dynamics, or chart TRPG NPC connections. A free tool built for storytellers. Whether you're outlining a complex plot or mapping your favorite fandom, this tool helps you visualize every alliance, rivalry, and secret bond in one clear diagram.
A relationship chart (also called a relationship diagram, character map, or character chart) is a visual that shows how multiple people, characters, or groups are connected to each other. Each person is drawn as a node, and the lines between them represent relationships such as friendship, family, romance, rivalry, or workplace hierarchy. Optional labels and arrows describe the nature and direction of each relationship.
What makes relationship charts so powerful is that they let you take in dozens of connections at a single glance. The same information explained in paragraphs would take pages of text and would still be hard to follow. With a chart, the entire structure of a story, a family, or a team becomes visible at once — making it obvious who the central figures are, where the conflicts sit, and which characters bridge different groups.
Beyond visualization, building a relationship chart is a thinking tool. The act of laying out characters forces you to surface assumptions, spot missing links, and notice imbalances. Writers often build a chart during the outlining stage of a novel for exactly this reason: contradictions in the plot become visible long before they reach the page.
You don't need any design or technical skills to use this tool. The whole workflow is just four steps, and most charts can be finished in under five minutes. Below is a slightly more detailed walkthrough so you know exactly what to expect on your first try.
Relationship charts often get pigeonholed as "just for anime fans" or "just for novelists", but the actual use cases are much broader. Below are four of the most common ways people use this free relationship chart maker, with concrete examples for each one.
Long-running shows with sprawling casts — think prestige dramas, Korean series, fantasy epics, anime — can be exhausting to follow when you take a break and come back weeks later. Building a quick relationship chart of who's allied with whom, who's in love with whom, and who is secretly working against whom lets you re-enter the story without scrubbing through episodes. Many viewers also use these charts as a jumping-off point for fan blogs, recaps, and review videos.
For writers, a relationship chart sits right next to the character bible as an essential planning tool. Because relationships shift over the course of a story, many writers actually build three charts — one for the beginning, middle, and end — so they can verify that every shift in alliance, betrayal, or romance is properly set up. This is invaluable for catching plot holes before you commit them to a draft. The same workflow applies to webcomics, screenplays, fanfiction, TTRPG (D&D) campaigns, and original character (OC) lineups.
When you join a new team or step into a new project, the hardest part isn't the work — it's figuring out who matters, who reports to whom, and who actually has decision-making power. A relationship chart can capture an org structure, a cross-functional project team, or a network of clients and partners in a single image that's far more useful than a static slide. Consultants, account managers, recruiters, and product managers all use this kind of chart to onboard themselves quickly and to brief teammates.
History students wrestling with "who married whom in the Tudor dynasty" or "how did Caesar, Pompey, and Crassus actually relate" find it much easier to remember those relationships when they draw them out instead of memorizing them from a textbook. The same applies to mythology, literature courses, social science research, and even genealogy projects where you want to map your own family tree across several generations.
One of the most common reasons people search for a free relationship chart maker is to organize their original characters (OCs) or to map out the connections between characters in their favorite fandom. This tool is specifically designed to make those use cases easy.
This relationship chart maker works fully on smartphones and tablets. Open Safari, Chrome, Edge, or Firefox, navigate to the page, and you can start building immediately — no app store, no install, no account. Every interaction (adding people, drawing lines, editing labels, dragging things around) is optimized for touch, so the tool feels just as natural with a finger as it does with a mouse.
This makes it perfect for capturing ideas on the go: jot down a quick character map on the train, sketch out a project's stakeholder web during a meeting, or brainstorm a fanfiction lineup from bed. Your work auto-saves to the browser, so you can pick up later on your laptop and continue exactly where you left off. iPads and Android tablets work great too — many users prefer them for longer charts because the bigger screen makes complex layouts easier to read.
Yes — the core editor is free to use with no sign-up required. You can add people, connect them, and export a standard image for free. HD export is offered as a small one-time upgrade if you need a cleaner, higher-resolution download.
Everything you create is stored locally in your browser's storage on your own device. Nothing is uploaded to our servers, which means even sensitive information — unpublished story ideas, internal org charts, fandom drafts you're not ready to share — stays completely private. The trade-off is that clearing your browser cache will erase your work, so for anything important we recommend saving the chart as an image or exporting the JSON file as a backup.
Each person and each relationship has its own delete button, so you can remove items individually. If you want to wipe the whole chart and start over, scroll to the bottom of the right side panel and click "Reset All Data". Deleted items can't normally be recovered, but if you delete something by accident you can press Ctrl+Z (or ⌘+Z on Mac) to undo the last few actions.
Yes — the entire interface is fully responsive and optimized for touch input. You can add people, draw relationship lines, edit labels, and rearrange layouts using just your finger on iPhone, Android, iPad, or any tablet. There is no separate mobile app to install: just open Safari, Chrome, Edge, or Firefox and the tool works immediately.
There is no hard technical limit — you can technically add hundreds of characters to a single chart. In practice, however, charts with 10 to 20 people tend to be the most readable. Beyond that, lines start to overlap and the big picture becomes harder to follow. For very large casts (long novels, fandoms with dozens of characters), we recommend splitting your chart into a "main characters" version and one or more "supporting cast" sub-charts.
Yes, charts you create with this tool are free for any use, commercial or non-commercial. You can publish them in books, blog posts, YouTube videos, slide decks, paid newsletters, novels, or product launches. Crediting "soukanzu.jp" is appreciated but not required. The only thing we ask is that you don't redistribute screenshots of the tool itself as if they were your own product.
Yes — OC relationship charts are one of the most common use cases. You can color-code different characters, upload custom artwork as their avatars, group them by storyline or faction, and label every connection with whatever relationship type fits your world (allies, enemies, family, exes, mentors, etc.). Many writers build several separate charts for different groups of OCs and link them mentally rather than crowding everything into one image.
A family tree is a specific type of relationship chart that focuses only on biological and marital connections — parents, children, siblings, spouses — usually arranged in a strict generational layout. A general relationship chart is broader: it can include friendships, rivalries, business partners, mentors, exes, classmates, and anything else. This tool can do both: just use vertical layouts and "parent/child/spouse" labels for a family tree, or use free-form positions and any labels you like for a general relationship chart.
Absolutely. The "Save as Image" button exports your chart as a high-resolution PNG, which is large enough for most slide decks, A4 printing, blog headers, and social posts. The exported image has a transparent or solid background depending on your settings, so it integrates cleanly into any document. For larger formats (posters, banners), the high-resolution export gives you enough pixels to scale up without losing sharpness.
Yes, there are several ways to share. The simplest is to export the chart as an image and send the file. For collaboration, the URL share feature compresses the chart data into a link — anyone who opens that link will see the exact same chart in their own browser, ready to edit. This is perfect for writing groups, TTRPG parties, fandom servers, or work teams that want to iterate together.