ULDA - Client-side encrypted storage with a simple JavaScript API

Show HN: ULDA – Client-side encryption with a simple JavaScript API

ULDA is a client-side encrypted storage solution that syncs across devices while keeping your server completely secret-free. Born from a chat app with an open-readable database, it introduces a novel authentication method based on proof of ownership, eliminating the need for traditional secret-based auth. The ULDA SDK lets developers work with encrypted, synced storage by simply editing JSON, making zero-knowledge data storage accessible and easy to integrate. Try it at docs.ulda.io and explore the white paper on GitHub.

The idea was simple - server holds zero secrets, like none at all.

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2026-10-21