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LitMemo
Keep your story world consistent, chapter one to the last
Worldbuilding tool for novelists and comic creators. Keep characters, settings, timelines, foreshadowing in one database, @mention them as you write, and let AI catch contradictions across your whole story. Not a ghostwriter — a story bible that checks itself.
Consistency over long fiction is a real problem, I run persona and world state systems for AI conversations in my product and the failure mode I know best is silent drift. A detail changes in chapter 12 and nobody notices until chapter 30. Does LitMemo flag contradictions on its own, or is it a reference you check by hand?
The @mention feature is genuinely useful for keeping side characters straight across chapters, and the contradiction catch on my messy timeline saved me from a real continuity mess.
The @mention system inside the actual manuscript is genuinely clever—most worldbuilding tools force you to context-switch between the doc and the database, but here the characters and timeline stay tethered to the prose as you write.
Tried it on a messy chapter with three timelines and it actually caught a date mismatch I had missed for weeks. The @mention setup feels like exactly what my scrappy Notion doc was trying to be.
Hi Product Hunt 👋 I'm the maker of LitMemo.
I built it because long-form fiction breaks in a very specific way: 200k words in, a character's eye color flips, a magic rule contradicts chapter 3, and a foreshadowing thread you planted 50 chapters ago just… vanishes. Your readers remember your world better than you do.
LitMemo is a story bible that checks itself. Characters, settings, timelines, and foreshadowing live in one structured database — you @mention them as you write, and when you run a consistency check, the AI reads your entire work to surface contradictions (not a generic ChatGPT that knows nothing about your world). It's explicitly not an AI ghostwriter — the story is still yours.
It now goes beyond novels: you can lay out comic panels and generate art panel by panel, with characters staying consistent (on-model) across pages.
There's a free plan and a no-sign-up playground — no credit card, nothing to install. I'd love your honest feedback, especially from anyone writing something long. What breaks your worldbuilding? 🙏
About LitMemo on Product Hunt
“Keep your story world consistent, chapter one to the last”
LitMemo was submitted on Product Hunt and earned 7 upvotes and 9 comments, placing #58 on the daily leaderboard. Worldbuilding tool for novelists and comic creators. Keep characters, settings, timelines, foreshadowing in one database, @mention them as you write, and let AI catch contradictions across your whole story. Not a ghostwriter — a story bible that checks itself.
LitMemo was featured in Productivity (656.2k followers), Writing (59.3k followers) and Artificial Intelligence (473.7k followers) on Product Hunt. Together, these topics include over 265.2k products, making this a competitive space to launch in.
Who hunted LitMemo?
LitMemo was hunted by Avvco Lee. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
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Avvco Lee
Consistency over long fiction is a real problem, I run persona and world state systems for AI conversations in my product and the failure mode I know best is silent drift. A detail changes in chapter 12 and nobody notices until chapter 30. Does LitMemo flag contradictions on its own, or is it a reference you check by hand?