Base64 to HTML
Paste a Base64 string that encodes HTML and get the decoded markup instantly.
Last updated: May 29, 2026
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Buy me a coffeeWhat is Base64 to HTML?
Base64 to HTML decodes a Base64-encoded string and returns the underlying HTML markup. This is useful when HTML is received through an API as a Base64 payload, embedded in a JSON field, or stored in a configuration value. The decoded output is the raw HTML text, ready to inspect, format, or use directly.
How to Use Base64 to HTML
Paste the Base64 string.
Click "Decode to HTML".
Copy the HTML output.
Common Use Cases
- Decoding Base64-encoded HTML received from an email API or CMS webhook.
- Extracting HTML from a Base64 field in a JSON API response.
- Inspecting encoded HTML payloads during API debugging.
Example Input and Output
Decoding Base64 to an HTML fragment.
PGgxPkhlbGxvIFdvcmxkPC9oMT4=<h1>Hello World</h1>Privacy
All decoding runs in your browser. No data is sent to any server.
Frequently Asked Questions
Will HTML entities and special characters decode correctly?
Yes. Base64 is binary-safe and preserves all bytes exactly, including <, >, &, and Unicode characters.
What is URL-safe Base64?
URL-safe Base64 uses - and _ instead of + and /. Enable the toggle if the string contains those characters.
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