Privacy-first tools

Your files, your machine.

File conversion tools that run entirely in your browser. No upload, no server, no trace.

How it works
01

Open locally

Pick your file. It stays in your browser tab — never sent to a server.

02

Processed in-browser

Conversion runs in a Web Worker using WebAssembly. Fast, offline-capable.

03

Instant download

Your result is generated locally and offered as a direct download.

04

Zero trace

No account, no tracking, no data retention. Close the tab and it is gone.

Available tools

Convert what you need

Contacts

New

Extract contacts from your email archives. Handles PST and MBOX files up to 15 GB — entirely in your browser.

from
PST MBOX
to
CSV VCF
Try it →