Encode text for transport
Turn plain UTF-8 text into Base64 for API examples, config snippets, basic data URLs or documentation handoffs.
Free Tool
Base64 Encoder / Decoder for Smarter Website Decisions
Convert text snippets, API values and copied Base64 strings without sending private content to a server.
Developer Utility
Base64 Encoder / Decoder
What It Checks
Focus Areas for This Tool
These are the signals I would review manually when deciding what needs fixing first.
01
Base64 encoding
Review this area to understand whether it is helping or hurting growth.
02
Base64 decoding
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03
UTF-8 text support
Review this area to understand whether it is helping or hurting growth.
04
Copy and download output
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Optimization Guide
How This Tool Helps Before Publishing
A little context makes the numbers more useful. Use these notes to understand where this tool fits inside content, SEO and website reviews.
Decode copied Base64
Paste Base64 strings and convert them back into readable text when checking API payloads, logs or encoded values.
Catch invalid input
Decode mode reports invalid Base64 or non-text payloads instead of returning confusing broken characters.
Private browser-based conversion
The conversion runs locally in your browser, so pasted values do not need to be uploaded to a server.
FAQs
Frequently Asked Questions
Quick answers about how this tool works and when to use it.
It converts plain text into Base64 and decodes valid Base64 strings back into readable UTF-8 text.
No. This version is focused on text. Binary Base64 may fail or show an error if it is not valid UTF-8 text.
Yes. It uses UTF-8 encoding, so common Unicode text can be encoded and decoded correctly.
No. The tool runs in your browser, so pasted text is processed locally on your device.