How do I encode text to Base64?

Paste your text into the input area and click Encode. The Base64-encoded result appears in the output field with a copy button.

How do I decode Base64 to text?

Paste your Base64 string into the input area and click Decode. The original text is displayed in the output field.

What is URL-safe Base64?

Standard Base64 uses + and / characters which must be percent-encoded in URLs. URL-safe Base64 replaces + with - and / with _, making the output safe to use directly in URLs and filenames without encoding.

Does this work with Unicode text?

Yes — the encoder uses TextEncoder to handle multi-byte Unicode characters (emoji, accented letters, non-Latin scripts) correctly before encoding to Base64.

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to text. Supports UTF-8 and URL-safe encoding.

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InputURL-safe Base64 (use - and _ instead of + and /)

How to Base64 Encode / Decode

Type or paste your text into the input field.
Click Encode to convert it to Base64, or Decode to convert Base64 back to text.
Enable URL-safe mode to replace + with - and / with _ for use in URLs.
Click Copy to copy the output to your clipboard.

Why Use This Tool?

Base64 encoding is used to represent binary data as text — in authentication headers, data URIs, JWT tokens, email attachments, and API payloads. This tool handles full Unicode text correctly using TextEncoder, so emoji and non-Latin scripts encode without errors.

Base64 Encode / Decode

How to Base64 Encode / Decode

Why Use This Tool?

Frequently Asked Questions