Exploring technical insights, architectural guides, and updates related to Privacy First.
The most private notes app is the one that never sends your notes to a server in the first place. While tools like Notion and Evernote offer powerful collaboration features, they come with a significant privacy trade-off: your personal thoughts, journal entries, and sensitive information are stored on their servers, often unencrypted at rest.
In this guide, we explain every method for transferring files without internet on Android — how each technology works, which apps to use, and the critical privacy implications that most guides ignore. Whether you are sharing photos at a wedding, sending large video files to a friend, or working in an area with no cellular coverage, this guide covers every scenario.
The most secure authenticator app is the one that never sends your secrets to a server. While cloud-synced authenticators offer convenience, they introduce a risk that most users never consider: your two-factor authentication secrets — the cryptographic seeds used to generate every 6-digit login code — are stored on someone else’s infrastructure, protected by someone else’s encryption decisions, and governed by someone else’s privacy policy.
In this tutorial, we walk through exactly how to use the Web Crypto API to generate SHA-256 hashes in JavaScript — with complete code examples, performance comparisons, and practical use cases.
In this guide, we break down the best privacy-first, client-side developer utilities available today — organized by category, with honest recommendations and a sharp focus on tools that actually respect your workflow and your data.
Learn how we implement zero-network execution and on-device privacy in our developer utilities and mobile apps.