Privacy Policy

No data collection

encodedecode.app does not collect, store, transmit, or process any of the data you enter into our tools. All encoding and decoding operations — Base64, URL, HTML entities, JWT decoding, and hash generation — happen entirely in your browser using native JavaScript APIs.

Technical verification

You can verify our privacy claims yourself: open your browser's DevTools (F12), go to the Network tab, and use any tool on this site. You will see zero outbound requests triggered by encoding or decoding operations. The processing is performed by the JavaScript running in your browser tab, using these native APIs:

• Base64: btoa(), atob(), TextEncoder
• URL: encodeURIComponent(), decodeURIComponent()
• HTML entities: manual character replacement
• JWT: manual Base64URL decoding, JSON.parse()
• Hashing: window.crypto.subtle.digest() + pure-JS MD5

Advertising

encodedecode.app is free and ad-supported. We use Google AdSense to display advertisements. Google AdSense may use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google Ad Settings.

Local storage

We store your dark/light mode preference in your browser's localStorage under the key encodedecode-theme. This data never leaves your device.

Contact

If you have any questions about this privacy policy, please contact us. Use the Contact link in the footer.