Encoding & Decoding

Transform data, any format.

Base64, URL encoding, JWT debugging, and image conversion — all in your browser.

lockB64

Base64

Encode and decode Base64 strings quickly.

→linkURL

URL Encoder

Encode and decode URLs for web applications.

→verified_userJWT

JWT Debugger

Decode and verify JSON Web Tokens (JWT) instantly.

→imageIMG

Image to Base64

Convert images to base64 strings.

→photo_libraryB64

What is encoding?

Encoding converts data from one representation to another so it can be safely transmitted, stored, or embedded in contexts that only accept certain character sets. None of your data leaves the browser — every conversion runs locally.

Base64 — encode binary or text into a safe ASCII string for APIs, emails, and data URIs.
URL encoding — percent-encode special characters so query strings and paths are valid in any browser.
JWT debugging — decode JSON Web Token headers and payloads to inspect claims without a backend.
Image encoding — convert images to inline Base64 data URIs for embedding directly in HTML or CSS.