Alternatives to Twigg

MindMarks is an AI conversation manager that saves and searches your ChatGPT, Gemini, and Claude chats in one dashboard.

Free Obsidian plugin that surfaces related notes and passages beside your note using local embeddings, with no API key.

Mem is an AI knowledge base that organizes what you capture, and Mem Agent checks in when something needs you.

MyMemo AI turns saved links, PDFs, videos and voice recordings into a searchable second brain you chat with.

mymind is a private AI memory app that saves your notes, bookmarks, articles and images in one visual board and organizes them for you.

Heptabase is a visual knowledge base whose AI Tutor turns your PDFs, YouTube videos, and notes into guided study courses.

Glasp is a social web and PDF highlighter that turns your highlights into an AI memory you can chat with.

Liminary is a Chrome-extension research memory that captures what you read and grounds client deliverables in your own sources.

Constella is an infinite-canvas memory layer that auto-links your notes so Claude, ChatGPT and Codex share the same context

Local-first AI agent that turns your files, meetings, and research into finished decks, sheets, and reports.

Ophel adds a real-time smart outline, chat folders, and a prompt library to 15 AI chat platforms — free, open source, local-first.

Second Brain gives your AI tools one shared, self-hosted memory across Claude, ChatGPT, Codex, Cursor and Devin.

Proactive AI second brain that organizes saved pages, PDFs, videos and tweets into guided learning Flows.

Knowing® is a v0.2 preview tree outliner that runs expand, summarize, and autocomplete AI actions on individual outline nodes rather than in a chat thread.

illumi is a browser-based AI visual workspace where 30+ models share one context canvas and your reasoning stays attached to the output.

Open-source, self-hosted LLM wiki that compiles your raw sources into a maintained knowledge base

Kortex is an AI second brain and writing workspace that turns your captured notes and highlights into finished drafts.

MyPKA delivers a local-first markdown knowledge base with six AI specialists that run on any LLM you choose.

SwarmVault compiles your files into a local-first, provenance-tracked knowledge graph and Markdown wiki.

Messync is a knowledge workspace that investigates your documents, links, and spreadsheets and answers with citations you can verify.

Open-source, Markdown note-taking app with backlinks, daily notes, local files, and an MCP server that lets Claude and Codex read and edit your notes.

OttO is a local-first MCP memory server and knowledge graph that gives Claude Code and Cursor persistent agent memory.

Workflowy turns notes and tasks into one infinite nestable bullet list, now with side-by-side Panes on desktop.

Local-first AI memory platform that makes video, audio, images and documents searchable by what's inside them

Notebooks in Gemini give every research project its own source-grounded workspace inside Google's AI assistant

ScreenshotAI is Fabric's screenshot layer: it syncs your iOS or Android captures, OCRs them, and files each one as a searchable smart note.

Free open-source browser extension that exports ChatGPT, Claude, Perplexity and Phind conversation threads into clean markdown files in one click.

Pieces for Developers is an on-device AI memory layer that captures your work every 2 seconds for instant recall and MCP piping.

AI voice notetaker for iPhone, Mac, and Apple Watch — talk, and Mumble turns it into notes, tasks, and ideas

Craft is the native notes and docs app for writing, planning tasks and publishing pages to the web.