--- title: "SumizAI vs nb" url: "https://sumizai.com/alternative-to/sumizai-alternative-to-nb.html" date: "2026-08-14T00:00:00+02:00" modified: "2026-08-14T00:00:00+02:00" description: "Looking for a nb alternative? SumizAI and nb side by side: price, licence, platforms and what each one actually does." tags: ["ai notes", "sumizai", "nb", "alternative to nb"] --- # SumizAI vs nb Looking for a nb alternative? SumizAI and nb side by side: price, licence, platforms and what each one actually does. ## What nb is nb is a notes and bookmark manager that runs entirely from the command line, complemented by a local web interface for those who prefer browsing content in a browser. The whole app is a single, portable script, with no complicated installation or cloud dependency — notes live as plain text files on the user's disk, fully under their control. It's a tool built for developers and terminal enthusiasts, for whom switching to a separate graphical app just to jot down one thought is unnecessary friction in day-to-day work. Key features: Working entirely from the terminal means creating, editing and searching notes happens without taking your hands off the keyboard and without leaving the environment you're already working in for code or system administration. Linking and tagging let users build a network of interconnected notes, similar to more elaborate personal knowledge management tools, but without leaving the command line. Filtering and search run instantly because the whole database is plain text files searched with system tools, not a closed database requiring its own search engine. Git versioning built directly into the tool lets users track note change history and sync notes between devices through a plain repository, with no need for a proprietary cloud service. Pandoc conversion lets notes be exported to many output formats — from PDF to HTML — directly from the command line. Who it's for: nb mainly reaches developers, system administrators, and people who spend most of their working day in a terminal, for whom every additional graphical app is a potential distraction. It's a tool for purists who value plain-text simplicity, control over their own data, and integration with an existing command-line workflow over the aesthetics and convenience of a finished graphical interface. Use cases: A developer working across multiple projects can keep technical notes for each one in separate files, instantly searchable from the same terminal where they run their code. A system administrator can document procedures and problem solutions directly while working on a server, without switching to a separate app, which is especially valuable when working over SSH on a remote machine with no graphical interface. Someone learning a new technology can keep a learning journal as a set of interlinked, tagged notes, synced between a desktop and a laptop through Git. Pricing and business model: nb is a fully free, open-source project released under the AGPL-3.0 license, guaranteeing not just no fees but also full freedom to modify and redistribute the code, provided derivative projects keep the same license. This model is typical of open-source community tools built by and for developers. Limitations and what to watch for: nb is available on Mac and Linux through Homebrew, but offers no native Windows version, limiting its reach among users of that system. A command-line interface, while powerful for people fluent in the terminal, is a real barrier to entry for anyone not comfortable working without a graphical interface — this is decidedly not a tool for everyone. AI notes and nb: nb focuses on notes typed manually by the user in the terminal, not on conversation with an AI model. Anyone who'd like to store ai notes from conversations with assistants like ChatGPT in nb would have to manually paste such conversation content in as plain text files — nb has no built-in AI model integration or mechanism for automatically saving conversations as ai notes. The plain-text philosophy: The decision to store notes as plain text files rather than in a closed, proprietary database format has far-reaching consequences — files created in nb can be opened in any text editor, processed by any script, searched with any system tool, now and ten years from now, regardless of whether the nb project itself is still maintained by then. This approach makes nb resistant to creator abandonment in a way closed apps with their own data format never can be. Integration with an existing toolkit: Because nb is built as a single shell script, it naturally integrates with the rest of the command-line tools a developer already uses daily — it can be called from other scripts, piped together with other Unix commands, automated through cron or git hooks. That composability is something most graphical notes apps lack, locked into their own environment with no easy outside access. Community and project development: As a community-maintained open-source project, nb evolves at a pace and in a direction set by real needs reported by users, rather than by the product roadmap of a profit-driven company. For many people in the developer community, that's itself a meaningful argument for choosing nb over a commercial alternative. What's worth checking before choosing: Before building a large archive of notes in nb, it's worth testing its Git and Pandoc integration on a small sample to judge whether the workflow fits your habits. It's also worth reviewing the documentation for available commands, since nb's full power only shows up once you've learned its command-line syntax. The learning curve: Mastering the full nb command syntax takes time, as with any command-line tool with rich functionality — a new user typically starts with basic note creation and search commands, gradually working up to more advanced capabilities like linking between notes or automatic sync through Git. Those who get through that initial learning curve usually stress that the time investment pays off many times over in daily working speed, far exceeding what notes apps requiring manual saving of ai notes or ordinary notes through a mouse-driven graphical interface can offer. Bottom line: nb is a powerful, minimalist tool for people who live in the terminal and want to keep notes as plain, portable text files under full personal control. It's a tool for manual note-taking, not for gathering ai notes from conversations with AI models. Comparison with SumizAI: nb and SumizAI represent different note-taking philosophies. nb is a command-line notes app for developers, built around plain text files, Git and Pandoc. SumizAI is a notes app built around conversation with an AI model, where answers worth keeping become ai notes saved as Markdown files in a vault the user owns. Anyone who lives in the terminal and wants to manually control every aspect of their notes will appreciate nb; anyone who wants ai notes to be created automatically from a conversation with AI will find SumizAI a better fit. **Key facts** - Price: Free - License: Open Source - Category: Note-taking, Todo List Manager ## What SumizAI is A note-taking application built around a conversation with an AI model. You ask a question, the answer streams back, and the answers worth keeping become Markdown notes — filed into a vault that is a folder on your own disk. A vault is a directory holding `base.md`, a generated table of contents up to six levels deep, and a `notes/` folder with one `.md` file per note. Before a note is written it is checked against the ones already there, so the fourth note about the same idea gets merged instead of added. Links between notes are ordinary Markdown links to files that exist. The model is never ours: you bring your own API key to one of seven providers — Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server — and pay that provider directly. A question sends the table of contents plus at most five relevant notes within a 24,000-character budget, and the app shows you which five it used. ## Where they differ - AlternativeTo's description of nb does not mention an AI model. That is the whole starting point in SumizAI: you have a conversation with a model on your own API key, and the answers worth keeping become notes without you filing them. - nb is open source (AGPL-3.0), and SumizAI is not. If reading the source is what decides it for you, that is a real argument for nb. The guarantee SumizAI offers instead is structural rather than legal: the notes are Markdown files in a folder you chose, so they open in any editor whether or not the application is running. - AlternativeTo's description of nb does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard `.md` files to a folder you picked, and an unpaid account can still export all of them. - AlternativeTo lists no mobile version of nb. SumizAI runs on macOS, Windows, iOS and Android. - Both search. SumizAI's search reads the whole note — title, summary, body and the original question and answer — rather than titles alone. Full side-by-side comparison table and pricing: [https://sumizai.com/alternative-to/sumizai-alternative-to-nb.html](https://sumizai.com/alternative-to/sumizai-alternative-to-nb.html)