OPTION63
option63.eu · Privacy-focused products

Keep in Touch,
privately.

KIT is a toolkit for private contact, calendar, and email sharing. Built for journalists, attorneys, high-profile individuals, and anyone who needs a high degree of privacy when sharing sensitive information.

01

Privacy by design

No tracking, no analytics, no third-party calls. Your contacts stay yours. KIT runs on your infrastructure, under your control.

02

Rust-powered

A memory-safe vCard parsing library and CLI, built in Rust. Correct, fast, and auditable down to the last byte.

03

Built for professionals

Create ad-hoc vCards with allow-listed properties to preserve the privacy of your contacts in sensitive environments.

Component

vCard library

A Rust library for parsing and displaying vCard files. RFC-compliant, memory-safe, and suitable for integration into privacy-critical infrastructure.

cargo add vcard-lib
Component

Command line

A CLI for common vCard operations — validate, display, and filter properties to create privacy-preserving exports.

kit show contacts.vcf --props FN,TEL,EMAIL
Custom development

Need a tailored solution?

KIT is offered with custom development, hosting, and managed services. Whether you need a dedicated deployment, custom integrations, or ongoing support — reach out.

contact@option63.eu