ObsiKO: AI Markdown + Mindmap

StudioHyZet

About this app

Search for a book, write a reading note, and it lands on your shelf — progress filling in as you read.
There's nothing to set up because the features are already wired to each other.
ObsiKO is a knowledge app that builds your own universe.

Everyday writing, LLM wikis, ontology, Zettelkasten, mind maps, reading logs, schedules, conversion — one app, no login, no subscription. Obsidian vaults (.md · .canvas · .base) open as they are. (AI features use your own API key.)

■ Write it once, it connects itself
· Set a note's type to "book": a book search fills in the rest, it lands on your shelf, and pages read become a progress bar
· Set it to "project": start and due dates appear, the span is drawn on the calendar, and it joins the PARA board
· Highlight a PDF and quotes stack up in a note of the same name — a plain note that search, graph and review pick up
· It works because every screen reads the same material: frontmatter, wikilinks, files. No hidden database, so the notes outlive the app
· Define your own types and relations — call one "author" and the reverse shows "works" by itself

■ Graph, canvas, and .base views
· Wikilinks, types, relations and PARA form one constellation. More links, brighter the star. Filter by relation, or replay its history
· Pen device drawing on a boundless .canvas. Let AI build a mind map, or hand AI the structure you built; auto-generate one from linked notes
· .base gives you projects, kanban, cards, charts, a library with book and paper search, PARA, a ledger — move a card and the note's property actually changes

■ Search and dashboard
· Filenames, full text, Korean jamo, and semantic search that finds the same meaning in other words
· 50+ dashboard elements plus query and embed boards: calendars, to-do, habit tracker, statistics, mini games, AI briefing, tarot
· 20+ customizable themes, matching widgets, your own fonts, and one frontmatter color that repaints header, tab and file tree

■ Markdown and writing help
· A format bar and cheat sheet for beginners, Mermaid, 20+ charts, inline drawing, block IDs, embeds
· A skeleton from 61 structures across 11 kinds of writing — Hero's Journey, Save the Cat, SCQA, character sheets
· Socratic critique, genre-aware editing, style tightening, dropped into your text as comments. Spellcheck, dictionaries, offline packs

■ Clipping, conversion, viewers
· The web clipper saves the article body and photos, not just the URL. RSS clips on its own
· Obsidian vaults, Notion HTML, and doc/docx/PDF/HWP to markdown in one click, one file or a whole folder
· The reference pane opens dozens of formats; highlight PDFs and markdown, then insert or quote
· One frontmatter line switches to book, web novel, messenger or visual novel view — record the last two and you have a short

■ AI agent
· Add an API key (Claude, Gemini, GPT). Text-to-speech, image generation, OCR and transcription right in the editor
· On your phone too, it builds mind maps and tables (.base) — and reads the ones you already have
· File creation, automatic memory, LLM wikis, ontology and Zettelkasten folders, instructions given as a mind map, slash commands, a prompt helper
· Bulk work and some advanced features are desktop only

■ Everything else
· Events and reminders (Obsidian Tasks compatible), calendar subscriptions, home-screen widgets,.
· Marp decks, export to PDF, DOCX, EPUB, HTML and ZIP, image editing, free image search (Pixabay, Openverse, Pexels, Wikimedia, Giphy)
· An encyclopedia view, command palette, focus mode and timer, word count, goals, trash, bookmarks

Every feature is free. Without AI there is no login or payment, and the app stays light.
Built for the developer's own use, so updates keep coming. Made by one person, so there may be gaps — tell me about any rough edge.

■ Requirements
· Android and more
· Korean, English, Japanese; more to come

What’s new

■ 1.1.6 What's New
· The 62 structures are now available to the AI. Say "set up a web novel project" and you get one folder+starter notes+a matching base.
· Read aloud(TTS) added. It speaks with your device's own voice — no AI, nothing saved to a file, no cost.
· The .base interface and the PARA board was reworked.

+ Various usability improvements, bug fixes, and new & updated help docs