Airgap Download

Airgap for macOS

Local document AI for confidential files.

Airgap lets you query PDFs, Markdown, and text files with local retrieval, local generation, and page-level citations. Documents never leave your machine.

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Requires macOS 14 Sonoma or later on Apple Silicon. Signed and notarized.

Airgap running on a MacBook, showing a local chat answer beside a cited PDF preview.
Formats PDF, Markdown, text
Models Five built in, or any MLX repo
Citations Page and paragraph
Vaults Portable and shareable

Overview

Document RAG without handing documents to a service.

Airgap builds a private vector index for each vault on your Mac. It parses documents, retrieves the relevant chunks, runs a local language model, and links answers back to the original source pages.

It is designed for local research workflows where precision, provenance, and data residency matter more than cloud convenience.

  1. Someone at a laptop as PDF, Markdown, code, and diagram files gather above it.

    Bring in a project

    Add everything in one place. Docs, code, diagrams, notes, and decisions.

  2. Files, checklists, and conversations connected around a locked safe.

    One project knowledge

    Your team's knowledge becomes a connected, private resource that stays with the project.

  3. A team gathered around a laptop while documents flow toward a new joiner.

    Onboard faster

    New people get up to speed quickly and can ask anything about the project.

  4. An answer on screen with its cited passages highlighted in the source document.

    Trust every answer

    Every answer cites the exact sources with paragraph-level evidence and highlights.

Security model

Built around local custody.

Airgap local custody illustration.

No hosted account

No service account, cloud workspace, or hosted relay sits between the app and your documents.

Encrypted chat and metadata

Chat history and document metadata are sealed with a per-vault AES-GCM key held in the macOS Keychain, marked device-only so it never syncs to iCloud. The search index relies on FileVault at rest.

Offline operation

Ingest, retrieval, and generation continue with Wi-Fi disabled after models are available locally.

Model backends

Use the local model path that fits the Mac.

Airgap model illustration.
MLX models Llama, Qwen, Mistral, and other open-weight models cached locally.
Apple Intelligence Built-in system model on supported macOS 26 configurations.
Vision fallback Apple Vision OCR handles pages PDFKit cannot extract cleanly.