LegendKeeper is a worldbuilding tool: you build the world, its maps and its history, and run your game from it. RealmBinder starts at the other end, with what happened at the table, and builds the campaign's record from that.
You are a GM who enjoys building the world before play: nested maps, eras and timelines, whiteboards, and pages you write and link yourself. You want a tool with no AI in it, and you want to edit alongside a co-GM in real time.
You want the campaign kept without becoming its librarian. You write or record what happened, and the characters, places, quests, timeline and recap come out of it for the whole table to read.
Request beta accessLegendKeeper's nested, zoomable maps handle very large images, and its timelines have eras and parallel storylines. An infinite whiteboard links its cards to the wiki, you edit together in real time with other people's cursors on the page, and offline edits sync when you are back. Export is never behind a paywall, and there is no generative AI, if that matters to your table.
In LegendKeeper you create and link every page yourself. In RealmBinder you bring the session, as rough notes, a recording or answers to an interview, and the entries are made and linked from it. You can still edit any entry by hand.
When a note says a quest is done or a character died, RealmBinder suggests the change and waits for someone to apply it. When a name might be someone you have met, it asks rather than guessing. The upkeep a wiki asks of you after every session is the part we try to take away.
Each session gets a written note and a short table brief to read out at the start of the next one. Players own their characters, and can pin notes to sessions and entries.
| Feature | RealmBinder | LegendKeeper |
|---|---|---|
| Writing up a session | RealmBinderYes:Paste rough notes, upload a recording or answer an interview, and get a written session note. | LegendKeeperPartly:Write session pages yourself, from templates. |
| Characters, places and quests | RealmBinderYes:Built from your session notes, with links to every session an entry appears in. | LegendKeeperYes:A wiki of pages you write and link by hand, with templates. |
| Maps | RealmBinderYes:Upload maps, pin places and people, draw routes, zones and labels. | LegendKeeperYes:Nested interactive maps with location and image pins. |
| Timeline | RealmBinderYes:Pulled from each session note and laid out by session. | LegendKeeperYes:Timelines with events, eras and parallel storylines. |
| Looking something up | RealmBinderYes:Ask Chronicler in plain language. Answers link to the notes they came from. | LegendKeeperPartly:Search the wiki. No AI answers, by design. |
| Sharing with players | RealmBinderYes:Invite the table as owners, members or viewers, or share a public link. | LegendKeeperYes:Free collaborators, real-time editing, fine-grained permissions and a public web link. |
| Export | RealmBinderYes:The whole campaign as a ZIP of Markdown files, links kept. | LegendKeeperYes:The whole wiki as HTML or JSON, on any plan. |
Pro: US$9 a month, or US$90 a year. A 14-day trial with no card. Basic is free for viewing, exporting and joining other people's projects. Creating your own needs Pro.
Free during closed beta, with payments switched off. Launch prices and plans have not been set. Beta tables hear from us before anything changes.
They fit side by side. Keep the world you built before play in LegendKeeper, and let RealmBinder keep what the party actually did in it. LegendKeeper exports HTML and JSON rather than Markdown, so moving pages across is a copy-and-paste job for now.
We wrote this from LegendKeeper's own pages on 18 October 2026. Products change, and we would rather be corrected than out of date. If something here is wrong, tell us and we will fix it.
RealmBinder uses AI to write up sessions, build the compendium and answer questions. What it touches, and where it can be wrong.