Last updated: August 7, 2026
JSON Master collects no data. There are no accounts, no analytics, no ads, no third-party SDKs, and no servers of ours. Your documents and your settings stay on your device and in storage you already control.
Documents are ordinary .json files — along with
.jsonc, .jsonl, .ndjson and
.geojson — that you open and save through the system's own file
picker: Files on iPhone and iPad, Finder on Mac. The app reads and writes only
the file you have open, and only where you told it to. It never uploads a
document, never copies one elsewhere, and never scans your storage for other
files. The same is true of exports: formatted JSON, minified JSON and CSV are
written to the location you choose in the system save panel.
If you keep files in iCloud Drive, or in another provider you have connected in Files, syncing is done by that service, not by us, and is governed by its own privacy policy. The app itself performs no syncing.
Everything you paste is processed on your device and nowhere else. Decoding a token, comparing a document against the clipboard, running a query, generating types — all of it happens locally, in the app's own code.
This matters most for tokens: the app splits a JWT and decodes its header and payload so you can read them. It does not verify the signature, and it does not contact any server to do so — the screen says as much while you are looking at it. A token you paste stays in the document you pasted it into.
Your interface language, path notation, indentation, parsing and appearance preferences are saved on your device in standard app preferences. They are technical settings, they contain nothing personal, and they never leave the device.
The app makes no network requests. Everything — parsing, editing, searching, converting and exporting — happens on your device, with or without an internet connection. The only outbound links anywhere in the app are two entries in the Help menu, pointing at the JSON specification and the JSONPath RFC; clicking one opens your browser, and nothing is sent from the app either way.
There is no analytics framework, no crash-reporting service, no advertising identifier, and no third-party code of any kind in the app. We do not know who you are, whether you use the app, or what you open with it.
The app collects no personal information from anyone, including children.
If our practices ever change, we will update this page and revise the "Last updated" date above.
Questions about privacy or the app?
Email:
volodymyr.sichka@gmail.com