Why this tool is useful
Create a predictable local contact snapshot for migration, deduplication or archive comparison without exposing a private address book to an online converter.
Convert saved vCard 2.1, 3.0 or 4.0 contacts into structured JSON containing names, emails, phones, addresses, organizations, categories and safe photo descriptors without uploading the address book.
Ready. Your working data stays in this browser.
Files and capture streams stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy. No server copy is created, stored or left to delete. The file picker is cleared when processing starts, and disposable worker memory is destroyed after completion or cancellation. Preview and generated-output memory is released when you clear the tool or leave the page.
Create a predictable local contact snapshot for migration, deduplication or archive comparison without exposing a private address book to an online converter.
The browser maps bounded vCard properties and parameters into an explicit schema; remote photo addresses remain inert and embedded photo bytes are described, not copied.
Convert a phone export to JSON, compare normalized email arrays locally, and reuse the organization, category and telephone fields in a private migration script.
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.