Apache Arrow
arrow.apache.orgShare columnar in-memory data across languages with a common format and library ecosystem.
Share columnar in-memory data across languages with a common format and library ecosystem.
A framework for forensic memory analysis
A distributed, memory-first SQL database for applications that need shared cluster state.
Use a small Java SQL database in embedded, in-memory, or client/server mode through JDBC.
A free Markdown notebook that stores notes as ordinary files and offers optional encrypted sync.
A local-first Markdown note app with an optional self-hosted encrypted sync server.
Collect continuous CPU and memory profiles, then compare code paths over time.
Manage several encrypted-folder backends from a desktop interface
A maintained Thunderbird fork with encrypted-message search
A private, open-source writing app built around searchable notes, pins, and trails.
Local Markdown notebooks with backlinks, search, and optional self-hosted encrypted sync.
Plan and share personal or professional events in an encrypted calendar across desktop and mobile apps.
End-to-end encrypted messaging, voice, video, and file sharing for organizations.
An open-source handwriting notebook with nested folders and encrypted cross-device sync.
Keep encrypted workplace messaging on a self-hosted XMPP server.
AI-native Markdown notes with encrypted sync for developers
OpenPGP mailboxes bundled with encrypted file storage
Configurable browser with blocking and encrypted sync
Browse compatible encrypted filesystems inside Android
Encrypted IPv6 overlay with public-key-derived addressing
Keep a working folder and an encrypted folder in sync