Lightsidian | Note, Graph

Lightsidian is a mobile-first notes app and personal knowledge base — the power of linked notes, without the setup.

Most notes apps drop everything into one long list, and last week's thought disappears forever. Lightsidian connects your notes instead: write [[a link]] and every mention becomes a backlink, every note a node on a map you can actually see.

WHAT YOU GET

• Knowledge graph — see every note and connection on one interactive map. Drag a node and it stays where you put it.
• Links and backlinks — type [[any note]] to link it. Mentions turn into backlinks automatically, so there is nothing to file away.
• Markdown editor — clean live-preview writing: headings, checklists, tables, quotes and code, the way you already write.
• Calendar and tasks — a built-in calendar with Google Calendar sync, plus to-dos, reminders and daily notes.
• Capture anything — text, photos, voice notes and files, all fully searchable, all in one place.
• Folders, tags and search — organise how you like, or not at all. Search finds it either way.

BUILT FOR YOUR PHONE

No setup. No plugins to configure. No desktop required. Open it and start writing — the map builds itself as you go.

YOURS, ALWAYS

• Works offline. Your notes live on your device; the cloud is optional.
• Sign in only if you want your notes synced across devices.
• Export your whole vault to plain Markdown files and folders in one tap. Zero lock-in.
• No ads. We never sell your data.
• Speaks 25 languages, detected automatically, with full right-to-left support.

FREE TO START

Everything you need to think, write and link is free forever, with no account required. Pro simply adds more media storage in the cloud if you ever want it.

Lightsidian — think in links, not lists.