Pure frontend · Offline trust snapshot

KeyBox Checker

A privacy-first Android keybox.xml checker. Files are parsed only in browser memory, never uploaded, and no external network requests are made at runtime.

How it works

The page keeps the XML, private keys, and certificate chains on your device. Certificate parsing, private-key matching, and chain signature checks run locally; trusted roots and revocation data come from the offline snapshot bundled into this page.

Drop keybox.xml here

Or click to choose a file. UTF-8 and UTF-16 are supported. Recommended file size: under 512 KiB.