XML to Base64

Paste XML, validate that it is well-formed, then encode it to standard or URL-safe Base64. Useful for APIs and systems that need XML inside a text-safe field.

Validate XMLEncode Base64URL-safe outputBrowser based

Last updated: May 29, 2026

XML input

Base64 output

Invalid XML: DOMParser is not defined

URL-safe Base64Output remains reversible encoding, not encryption.

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What is XML to Base64?

XML to Base64 turns readable XML markup into a reversible Base64 string. Encoding XML can make it easier to embed inside JSON fields, message queue attributes, environment variables, legacy SOAP wrappers, or systems that cannot safely carry angle brackets and line breaks.

This tool validates the XML before encoding so malformed tags, broken nesting, or unescaped characters are caught early. It also reports the root element, element count, character count, and byte size before generating the encoded output.

How to Use XML to Base64

Paste XML into the input area

Fix any XML validation error shown by the parser

Enable URL-safe Base64 if the output will be used in a URL or filename

Click Encode XML to Base64

Copy or download the encoded result

Common Use Cases

Encoding XML request bodies before wrapping them in JSON.
Preparing XML fixtures for config files or environment variables.
Moving XML through logs or queues where raw angle brackets are inconvenient.
Creating test payloads for systems that expect Base64-encoded XML.
Checking XML validity before handing encoded content to another service.

Example Input and Output

A compact XML order element encoded as Base64 for transport in a text-only field.

XML input

<order id="A100"><total>42.50</total></order>

Base64 output

PG9yZGVyIGlkPSJBMTAwIj48dG90YWw+NDIuNTA8L3RvdGFsPjwvb3JkZXI+

Encoding scope

The output can be decoded back to the original XML. Use encryption or signing separately when confidentiality or tamper resistance matters.

Frequently Asked Questions

Does the tool validate XML before encoding?

Yes. XML must be well-formed before the Base64 output is generated. This catches common issues like unclosed tags, mismatched nesting, and unescaped ampersands.

Is Base64 secure for XML?

No. Base64 is reversible encoding, not encryption. Anyone can decode the XML, so do not treat the output as protected data.

What does URL-safe output change?

URL-safe Base64 replaces + and / with - and _ and removes padding, making the value easier to place in URLs and filenames.

Is my XML uploaded?

No. XML validation and Base64 encoding happen locally in your browser.