TOOLS2030 / Developer Tools

JSON, Base64 and URL Encoding Explained

JSON formatting, Base64 encoding and URL encoding are common developer tasks, but they solve different problems. Knowing which one you need prevents corrupted data and confusing errors.

JSON formatting

JSON stores structured data using objects, arrays, keys and values. Minified JSON is compact but difficult to read. A formatter adds indentation and line breaks without changing the underlying data. Use the JSON Formatter to beautify and validate JSON before debugging or sharing it.

Base64 encoding

Base64 converts binary or text data into a limited set of printable characters. It is commonly used when data needs to travel through systems that expect plain text. Base64 is not encryption; encoded data can be decoded easily.

Use the Base64 Encoder/Decoder for quick text conversions.

URL encoding

URLs cannot safely contain every character directly. URL encoding replaces reserved or unsafe characters with percent-encoded values. For example, a space may appear as %20 in a URL component.

The URL Encoder/Decoder helps prepare query values and decode encoded URL text.

Which tool should you use?

• Use JSON formatting when structured JSON data is hard to read or needs validation.
• Use Base64 when data must be represented as text-safe encoded content.
• Use URL encoding when text will be placed inside a URL or query string.

Security note

Encoding is not the same as encryption. Do not treat Base64 or URL encoding as a method for protecting passwords, secrets or private data.