Grapheneos GitHub Repositories (2026) · Open Source Tools

Maps and turn-by-turn navigation for Android without Google Play Services: the best of open map data, with Google lookups by choice. Runs on degoogled phones and can avoid Flock cameras

Modern camera app focused on privacy and security with QR & barcode scanning.

Simple Android PDF viewer based on pdf.js and content providers. The app doesn't require any permissions. The PDF stream is fed into the sandboxed WebView without giving it access to content or files. CSP is used to enforce that the JavaScript and styling properties within the WebView are entirely static.

Radio frequency scanner with recon and offensive capabilities

An Android Auto alternative built for everyone

attestation.app remote attestation server. Server code for use with the Auditor app: https://github.com/GrapheneOS/Auditor. It provides two services: submission of attestation data samples and a remote attestation implementation with email alerts to go along with the local implementation based on QR code scanning in the app.

Servers for our website, HTTP/HTTPS connectivity checks, HTTPS network time, NTP (for Qualcomm XTRA), Broadcom PSDS cache, Samsung PSDS cache, Qualcomm PSDS (XTRA) cache, SUPL proxy, attestation key provisioning proxy, Vanadium component update check/download proxy, network location proxy and geocoding proxy. Also app and OS updates via an include.

Hardware-based attestation and intrusion detection app for Android. It provides both local verification with another Android device via QR codes and optional scheduled server-based verification with support for alert emails. It uses hardware-backed keys and attestation support as the foundation and chains trust to the app for software checks.

Private, fast, minimal Android app updater: GitHub, GitLab, Codeberg/Forgejo, F-Droid and IzzyOnDroid. No native code, works with GrapheneOS dynamic code loading restrictions.

On-device transcripts and summaries of your recorded phone calls. Made for GrapheneOS; nothing leaves the phone.

Offline AI research assistant for Android. Answers from Wikipedia and other reference packs on the phone, with citations. Gemma 4 runs on the Pixel 10's Tensor NPU (first word in about 2 s); other phones use llama.cpp. No INTERNET permission.