Converter Tools
Base64 to HTML
Paste a Base64 string that encodes HTML and get the decoded markup instantly.
Last updated: May 29, 2026
Client-Side Processing
Input Data Stays on Device
Instant Local Execution
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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
1
Paste the Base64 string.
2
Click "Decode to HTML".
3
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.
Base64
PGgxPkhlbGxvIFdvcmxkPC9oMT4=HTML
<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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