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Not sure where to start? This week’s hottest software, models and stacks in three minutes.

AI Apps▾

AI software people use: from assistants like ChatGPT to tools for coding, video and workflows, picked by purpose.

For Agents▾

Software for AI: tools that let your agent (Claude Code, Codex, Cursor…) browse, read docs, run code and remember.

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// Manage notes & knowledge

Obsidian

Local Markdown notes and personal knowledge base; plugins connect AI and agents.

Closed / commercial Maintained For everyone

Official site ↗ Compare

IN ONE PARAGRAPH

Obsidian is local Markdown notes and personal knowledge base; plugins connect AI and agents.

Good for: Anyone who wants AI to manage notes & knowledge without setting anything up.

Not for: teams that require open source or self-hosting.

01How to start

  1. 1Open the official site or app store page (link above) and sign up.
  2. 2Available on: macOS, Windows, Linux, iOS, Android.
  3. 3Pricing: Freemium — start with the free tier if there is one.

02Alternatives & comparison

Compare side by side →
AFFiNE Open-source knowledge base and whiteboard, an alternative to Notion and Miro. ★ 74k private-gpt Complete API layer for private AI apps on local models: RAG, skills, tools, MCP. +1★/day siyuan Privacy-first self-hosted knowledge workspace for humans and agents. +13★/day outline Fast open-source knowledge base for growing teams. ★ 41k WeKnora Tencent's open LLM knowledge platform: docs → RAG → agents. +151★/day

03Related

Versions, why it is listed, for AI to read

Popularity evidence (third-party snapshots)

For AI agents

Data updated: AI software & hot ranks · Software profiles & needs(UTC+8)