diagram.now vs kuku
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 kuku leads with 552 upvotes
Free browser diagram editor that imports Gliffy and Lucid
diagram.now is a versatile, browser-based diagram editor designed for quick and easy visual creation without the need for accounts or software downloads. It supports importing diagrams from popular formats like Gliffy, Lucidchart, Visio VSDX, as well as data formats such as SQL, CSV, and Mermaid, making it highly flexible for various diagramming needs. Users can then export their diagrams as PNG, SVG, PDF, XML, JSON, or generate shareable URLs, facilitating seamless collaboration and distribution. Its no-install approach appeals to professionals seeking a fast, accessible tool that integrates smoothly into existing workflows. Additionally, an optional Confluence app enhances teamwork within Atlassian environments. Whether for technical diagrams, flowcharts, or data visualization, diagram.now offers an intuitive platform that caters to both casual users and power users who value speed and simplicity.
Pros
- No account or installation required, quick access via browser
- Supports a wide range of import and export formats for flexibility
- User-friendly interface suitable for both technical and non-technical users
- Allows importing from popular diagram tools like Gliffy, Lucidchart, and Visio
- Shareable URLs streamline collaboration
Cons
- Limited advanced features compared to dedicated desktop diagramming software
- No mention of real-time collaboration or version history
- Potentially less suitable for complex, large-scale diagrams
Best for
- • Creating quick flowcharts and process diagrams for presentations
- • Importing and editing existing diagrams from tools like Gliffy or Lucidchart
- • Visualizing database schemas using SQL or CSV data
- • Designing simple technical diagrams without installing software
Pricing: Likely operates on a freemium model, offering free access with core features and additional functionalities or integrations available via paid plans. Exact pricing details are not specified but are expected to be affordable for individual users and small teams.

Obsidian — but a lot has changed
Kuku is a native, local-first markdown editor designed for macOS users who prioritize privacy, speed, and flexibility. Built with Tauri instead of Electron, it offers a lightweight, offline-capable experience where notes are stored as plain markdown files, supporting wikilinks, backlinks, and visual graph views. Its standout feature is an integrated AI agent that not only chats but actively searches, edits, and links files, presenting changes with Cursor-style diffs for transparent review. This combination of traditional note-taking with AI-driven enhancements makes Kuku ideal for writers, researchers, and productivity enthusiasts seeking a seamless, privacy-focused environment. Its offline-first design ensures data security and quick access, while its modern UI and robust features offer an Obsidian-like experience minus the bloat and cloud dependencies.
Pros
- Native macOS app built with Tauri for improved speed and stability
- Offline-first with no reliance on cloud storage, ensuring privacy
- Integrated AI agent that searches, edits, and links files intelligently
- Supports markdown with wikilinks, backlinks, and graph view features
- Transparent change tracking with Cursor-style diffs
Cons
- Limited to macOS, no Windows or Linux versions currently
- Still a relatively new tool, with a smaller community compared to established options
- May require some learning curve for users unfamiliar with markdown or AI integrations
Best for
- • Knowledge management and personal wiki building
- • Research note organization with advanced linking and graph views
- • Creative writing and drafting with AI-assisted editing
- • Offline note-taking for privacy-conscious users
Pricing: Likely operates on a freemium model with core features available for free, and premium features or AI capabilities offered via paid plans, though specific pricing details are not publicly confirmed.