Base64 Encoder & Decoder
Encode text to Base64 or decode Base64 back to readable text. Unicode-safe, private, and instant.
Encode and decode without a round trip
Base64 is handy when you need text-safe data for config files, API testing, basic auth headers, or data URLs. This tool keeps that conversion in your browser, so the value never has to leave your machine.
Remember: Base64 is reversible. It is useful for transport and formatting, not for security.
Frequently Asked Questions
What is Base64 used for?
Base64 represents binary or special-character data as plain ASCII text. It is common in API tokens, data URLs, email attachments, and configuration values.
Is Base64 encryption?
No. Base64 is encoding, not encryption. Anyone can decode it, so do not treat it as a secure way to hide secrets.
Does this support Unicode text?
Yes. The tool uses TextEncoder and TextDecoder so Unicode text is handled more reliably than old btoa/atob-only snippets.
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