Privacy

Short version: what you paste stays in your browser.

Conversions happen on your device

Every encoder, decoder, formatter, converter and cipher on CodeCipher runs as JavaScript in your browser. The text, JSON, tokens, images and files you use are not uploaded to us.

The “Ask AI” buttons

Two features — the AI explanation in the cipher identifier and on the home page, and “Fix it with AI” in the JSON tools — send the text in that box to our server, which passes it to an AI model through Vercel’s AI Gateway to generate a reply. This only happens when you press the button. We do not store the text or the reply, and we limit how many requests each visitor can make. Do not send passwords, private keys or personal data to the AI.

What we keep in your browser

To save you retyping, several tools remember your last input and settings (for example Morse speed or the Caesar shift) in your browser’s local storage, under keys starting with cc:. This never leaves your device. You can erase it at any time:

Analytics

We use Ahrefs Web Analytics to count page views. It does not use cookies and does not collect personal data; it records things like the page visited, referrer, country and device type in aggregate.

Hosting

The site is hosted on Vercel, which processes standard server logs (such as IP addresses) to deliver pages and protect against abuse.

Last updated September 2026.