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Base64 Encoder / Decoder

Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to plain text.

Result

Configure inputs and run the tool

Results will appear here

About this Base64 Encoder / Decoder

The Base64 Encoder Decoder is a free developer tool for encoding text or binary data into Base64 format and decoding Base64 strings back to readable text. Base64 encoding is widely used in web development for embedding images in HTML and CSS, transmitting data in APIs, and storing binary data in text-based formats like JSON. This online Base64 converter works entirely in your browser for fast, secure processing.

How to use the Base64 Encoder / Decoder

  1. 1 Enter your text into the Input Text field, or paste a Base64 string you want to decode.
  2. 2 Select either "Encode to Base64" or "Decode from Base64" from the Action dropdown.
  3. 3 Click the Run button to instantly process your input.
  4. 4 Copy the resulting encoded or decoded text from the output area.

Frequently Asked Questions

What is Base64 encoding used for?
Base64 encoding converts binary data into ASCII text, making it safe to transmit over text-based protocols like HTTP and embed in formats like JSON, HTML, and CSS. It is commonly used for embedding images, email attachments, and encoding API credentials.
Is Base64 the same as encryption?
No, Base64 is an encoding scheme, not encryption. It transforms data into a different representation but provides no security. Anyone can decode Base64 back to the original data. Do not use Base64 to protect sensitive information.
What happens if I try to decode invalid Base64?
If the input contains characters that are not valid Base64, the tool will display an error message. Valid Base64 uses only A-Z, a-z, 0-9, +, /, and = for padding. Make sure you have copied the complete Base64 string without any truncation.
Can I encode non-ASCII characters like emojis?
Yes, this tool supports Unicode characters including emojis and non-Latin scripts. It uses UTF-8 encoding before converting to Base64, so characters from any language or symbol set are handled correctly.

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