TL;DR
World Anvil, Kanka and LegendKeeper lean toward wikis for readers and game tables, Campfire and Plottr toward writers, Obsidian and Notion toward notes you build yourself, and Wonderdraft and Azgaar toward maps. Musael suits novelists who want the world to check the manuscript as they write.
The best worldbuilding tool is the one that matches what your world is for. If you run tabletop games or want readers to browse a wiki, World Anvil, Kanka and LegendKeeper are built for that. If you write novels, Campfire, Plottr and Musael sit closer to the manuscript, Obsidian and Notion give you a blank notebook, and Wonderdraft and Azgaar's generator handle maps. We make Musael, so we say where another tool fits better. Prices and features are what each official site showed on 2 October 2026, and they change. For the ideas behind the tools, see what is worldbuilding and the worldbuilding guide.
The tools side by side
| Tool | Platforms | Pricing as shown | Best for |
|---|---|---|---|
| World Anvil | Browser | Free tier; Master $4.50 a month billed annually, Grandmaster $8.25, Sage $25 (excl. VAT); lifetime options | Worlds that readers or players browse |
| Kanka | Browser | Free tier (Kobold); paid from $4.99 a month ($4.16 billed yearly) | Collaborative worlds and tabletop campaigns |
| LegendKeeper | Browser, no native mobile app yet | $9 a month or $90 a year; 14-day trial | Wiki plus maps and timelines |
| Campfire | Browser, desktop, mobile | Free plan with limits; Standard $12 a month (list $19) | Modular worldbuilding for novelists |
| Plottr | Windows, Mac; web with Pro | From $60 a year; Pro $99 a year; lifetime $150; 30-day trial | Outlines and a series bible |
| Obsidian | Desktop and mobile | Free; Sync $4 a month billed annually | Linked notes you structure yourself |
| Notion | Not listed on the pricing page | Free plan at €0 per seat | Databases and wikis for planners |
| Wonderdraft | Windows, Ubuntu | $29.99 one-time | Hand-drawn style maps |
| Azgaar's Fantasy Map Generator | Browser | Free | Generated and editable maps |
| Musael | Web, works offline | Quill €15.98 a month on a yearly plan; 7-day Ink trial | A world that checks your manuscript |
Scroll horizontally to see all columns. Arrow keys work when the table is focused.
Wikis for worlds people browse
World Anvil is a long-established world wiki. Its pricing page shows a free tier called Freeman with 2 worlds, and paid tiers that add content privacy, themes, advanced maps, family trees, diplomacy webs and a novel writing tool. Master is $4.50 a month billed annually with 4 co-authors and 10 worlds, Grandmaster is $8.25 with 9 co-authors, custom templates and the full set of map features, and Sage is $25 with 20 co-authors. All are listed without VAT, and lifetime memberships exist. It fits a writer who wants to publish the world for readers or share it with players. Musael's comparison with World Anvil covers the differences in detail.
Kanka calls itself a choice for collaborative worldbuilding and tabletop campaign management. Its free tier, Kobold, lists unlimited entries and unlimited campaigns, with more than 20 categories such as characters, locations, families, timelines, calendars and maps. Paid plans start at $4.99 a month and add larger uploads, premium campaigns and an ad-free experience. The site says your content can be exported at any time and that its code is public on GitHub. It fits a game master and a writer who wants a free wiki with players or co-authors invited in.
LegendKeeper is a wiki with native maps and timelines, aimed at worldbuilders and game masters. It lists offline work with later sync, real-time collaboration and GM-only sections inside pages. A subscription is $9 a month or $90 a year, with a 14-day free trial that needs no card, and the site says it does not offer refunds. A free plan lets you collaborate on projects other people own. It fits a writer who wants a map that works like an online atlas.
Tools for novelists
Campfire splits a project into modules, from manuscript and characters to calendar, magic, languages, cultures, species and religions. The free plan caps every module (the limits are in best free novel writing software), and Standard was shown at $12 a month against a $19 list price. The site says the mobile app lets you create unlimited elements, though not every module is available there. It fits a writer who wants a deep, modular encyclopedia and a low entry price. Musael's comparison with Campfire goes feature by feature.
Plottr is outlining and series bible software that advertises having no AI. The base app is a Windows and Mac desktop program with offline work and automatic backups, and Plottr Pro adds a browser app, cloud sync and real-time collaboration. Plans are $60 a year, $99 for Pro, $9.99 a month for Pro and $150 lifetime for the base app, with a 30-day trial. It fits an outliner who drafts somewhere else. See Musael compared with Plottr.
For a writer who wants a Codex plus AI drafting, best novel writing software covers Novelcrafter and the other manuscript tools.
Notes apps you shape yourself
Obsidian says it is free without limits and needs no sign-up, with apps for desktop and mobile. It keeps notes on your device, links them together and shows a graph of the connections. Optional Sync is $4 a month per user billed annually. Notion has a free plan at €0 per seat a month, and a single-member workspace can add as many pages and blocks as it likes, with uploads capped at 5MB each on the free plan. Both suit a writer who enjoys building a system. Neither knows what a scene or a chapter is, so a link from a character page to a manuscript sentence is something you maintain.
Map tools
Maps are a separate craft, and a dedicated tool often beats a built-in one. Wonderdraft is a map-making program for Windows 10 64-bit or Ubuntu, with brushed landmasses, rivers, roads, symbols and labels. It costs $29.99 once, works with no internet and has no subscription. Azgaar's Fantasy Map Generator is a free web application for fantasy writers, game masters and cartographers, with an open GitHub project and a Patreon for support. Draw or generate the map there, then pin the places from your world onto it where your own tool allows.
Musael
Musael is a web app made by Lucernel for the writer who wants the world to stay true to the book. Its world and characters codex gives every character, place, object and event an entry with relations, and each mention in the text points back to it. A timeline can hold events the reader has not yet been told about, and continuity checks test the rules you set against the scenes, naming the sentence that breaks one. On Ink and Press you can upload a map and pin places from your world on it, and several books can share one world as a series.
If you already keep a world elsewhere, the import guide explains how Obsidian and Notion folders, World Anvil exports and Campfire documents arrive. World Anvil's export is part of its Guild membership, and pictures stay behind. Musael has no free plan, and Quill is €15.98 a month on a yearly plan (see pricing), so Kanka's free tier or Campfire's free plan is a better place to begin on a tight budget. Musael publishes stories on public pages, but it is not a wiki for players to browse the way World Anvil is built to be.
How to choose
- Name the audience. Players or browsing readers point to World Anvil, Kanka or LegendKeeper. A novel only you and your editor read points to a tool beside the manuscript.
- Decide where the world lives. Beside the book keeps it in step with the draft. Apart gives you more freedom and more upkeep.
- Test the first thousand entries. A tool that is pleasant for ten characters can be slow for three hundred.
- Check export before you commit. Kanka and Campfire say you can export, and the worldbuilding template works in any tool.
- Add maps last. Build rules and people first, then draw the places the story visits.
Frequently asked questions
What is the best free worldbuilding tool?
Kanka's free tier lists unlimited entries and campaigns, Obsidian is free without limits, and Campfire has a capped free plan. Azgaar's generator is free for maps. Pick by whether you need a wiki, notes or maps.
Which worldbuilding tool is best for a novel rather than a game?
Campfire, Plottr and Musael sit closest to novels because they include or link to the manuscript. Game-focused tools such as Kanka work for novels too, but the manuscript lives elsewhere.
Do I need a worldbuilding tool at all?
Not for a short book. Once a story has dozens of named people, places or rules, writing them down in one place stops contradictions. A story bible in any form does the job.
Can I move my world between tools?
Often, with some cleanup. Musael imports Obsidian and Notion exports, Scrivener folders, World Anvil exports and Campfire's DOCX files, and shows a preview before it creates anything.
How much worldbuilding should I do before I write?
Enough to answer the questions your first scenes raise. Worldbuilding questions lists good ones, and how to create a magic system covers the rules readers will test.
Sources
Official pages opened on 2 October 2026:
