Legal · Licenses

Standing on
open shoulders.

Ampersand is built with a lot of excellent open-source software. Here are the components we rely on, and the licenses they are commonly distributed under.

Last updated: July 2, 2026

Ampersand's own terms of use live at /terms. The list below acknowledges the third-party open-source components the app is built on. The identifiers shown are the licenses these projects are commonly distributed under; the complete, authoritative license notices ship inside the app, on the About screen.

App shell & UI

  • Tauri

    The native desktop shell that hosts the app on macOS.

    Apache-2.0 / MIT

  • Rust standard ecosystem

    The systems language and crates behind the app backend.

    Apache-2.0 / MIT

  • React

    The UI library the interface is built with.

    MIT

  • Tailwind CSS

    The utility-first styling system for the interface.

    MIT

  • cmdk

    Powers the command palette and quick switcher.

    MIT

  • Framer Motion

    Animations for panels, dialogs, and transitions.

    MIT

  • lucide

    The icon set used throughout the app and this site.

    ISC

Editor

  • TipTap

    The block-based rich-text editor framework.

    MIT

  • ProseMirror

    The document model and editing engine under TipTap.

    MIT

Export

  • @react-pdf/renderer

    Renders pixel-perfect vector PDF exports.

    MIT

  • docx (dolanmiu)

    Generates Microsoft Word (.docx) exports.

    MIT

  • mammoth

    Imports Word documents into markdown.

    BSD-2-Clause

Smart blocks

  • KaTeX

    Typesets math expressions and equations.

    MIT

  • Mermaid

    Renders diagrams from text.

    MIT

  • Vega-Lite

    Renders charts from a JSON specification.

    BSD-3-Clause

Search & history

  • ripgrep libraries (ignore, grep-searcher, grep-regex)

    Fast, gitignore-aware vault-wide search.

    MIT / Unlicense

  • libgit2 / git2-rs

    Per-vault version history via a shadow git repository.

    GPL-2.0-with-linking-exception / MIT

  • age / rage

    The encryption library for locked notes.

    MIT / Apache-2.0

AI

  • Ollama

    Used as an external runtime for on-device local models.

    MIT

This list may not be exhaustive, and license terms are set by each project, not by us. For the complete NOTICE file or any attribution question, email hello@getampersand.app. See also our terms and security overview.