Blobs is an offline Android research app. Search a local knowledge library, ask questions, and read the sources inside the app. Conversations, documents, and model inference stay on your phone. It needs no account and does not depend on Google Play Services, which is what a GrapheneOS install requires; it has not yet been run on a GrapheneOS build.
Download the Android app · Read the guides · See the app · Agent-readable index
Forty-six seconds: the library and model you install, the storage they take, and one question asked of a travel library with no connection, answered with the passages it came from. Recorded on an Android emulator; the 0.5.0 release runs the same flow on a physical Android phone. Watch the film.
- Download the APK from the latest release and open it on Android 9 or later. Allow installation from your browser or file manager when Android asks. ARM64 and x86_64 are supported.
- Open Blobs. Review the model recommended for your phone, then choose Download. You can compare other models before choosing.
- Download the starter library and finish setup. Optional collections are available from Library → Discover more.
- Ask your first question. The model can chat offline without a library; install a library to search saved sources and open citations.
Only downloads and checking for new models or libraries need a connection. They start when you choose them. Installation verifies the package before activating it. Model and library sizes, languages, sources, and licenses are listed in the app and the guides.
You can install a newer APK over an existing version signed with the same certificate. Keep the app installed to preserve private conversations and downloaded libraries. Release checksums and the signing certificate fingerprint accompany every APK.
Blobs 0.4.0 uses a new signing certificate, so Android refuses to install it over 0.3.14 or older. Export the conversations you want to keep, uninstall the old app, then install 0.4.0; later releases install in place again.
- Ask questions using downloaded libraries and follow citations to saved articles.
- Add your own text, Markdown, CSV, JSON, and text-based PDFs.
- Save, rename, export, or delete conversations and manage your downloaded collections.
- Choose a local model and use Android's text-size preferences and light or dark appearance.
Answers can be incomplete or wrong, even when they include citations. Libraries are snapshots rather than live web search. Check the source and its date, and choose a model that fits your phone's memory and storage.
Follow the Android build guide to build and run the app. See Contributing for code changes, corpus preparation for library packages, and website development for the guides.
Original Blobs source code, tooling and documentation are licensed under Apache-2.0. Original Blobs artwork and branding are excluded from that grant; see NOTICE. Third-party components, model weights and datasets retain their own licenses; see android/THIRD_PARTY_NOTICES.md and corpus/THIRD_PARTY_NOTICES.md.
Ask questions in Discussions, report bugs or source corrections through GitHub issues, and follow Contributing for code changes. For security vulnerabilities, use private reporting. Participation follows the community code of conduct.