Encode text to Base64 or decode Base64 back to readable text instantly.
Base64 encoding converts data into a safe ASCII format commonly used in
APIs, emails, configuration files, and data transmission. All processing
happens directly in your browser for speed and privacy.
What is Base64 encoding?
Base64 is a binary-to-text encoding scheme that represents data using
64 printable ASCII characters:
AβZ, aβz, 0β9, +,
/, with optional padding using =.
It allows binary or special characters to be safely transmitted through
text-only systems.
How does Base64 encoding & decoding work?
When encoding, text is converted into binary data and mapped to Base64
characters. When decoding, the Base64 string is translated back into its
original readable form. The process is fully reversible and does not
provide encryption.
Plain text β Base64 encoded string β decoded back to original text
How to use this Base64 tool
This tool lets you quickly encode plain text into Base64 or decode Base64
back into readable text using your selected character encoding.
Paste text, choose Encode or Decode, and copy the result instantly
Paste your plain text or Base64 string into the input field.
Choose either Text to Encode or
Encoded text to Decode.
Choose the correct character encoding (UTF-8 recommended).
The processed result appears immediately.
Copy the output as needed.
π Privacy: All encoding and decoding happens locally in
your browser. No data is uploaded or stored.
Why use this Base64 tool?
Base64 encoding is essential when working with text-only systems that need
to handle binary or special characters. This tool provides fast,
client-side conversion without any limits or data exposure.
Instant results: Encode or decode large text instantly.
100% private: Runs entirely in your browser.
Developer-friendly: Ideal for APIs, tokens, headers,
and config files.
Tips for best results
Follow these tips to avoid encoding or decoding issues:
Use UTF-8 encoding to support emojis and non-English characters.
Remove extra spaces or line breaks when decoding Base64.
Remember: Base64 is encoding, not encryption.
For files or images, ensure the tool supports file input.
Frequently Asked Questions
Is Base64 encoding secure?
No. Base64 is not encryption. It only transforms data into a readable
text format. Anyone can decode it. Use encryption algorithms for
sensitive data.
Can I encode any text?
Yes. You can encode plain text, JSON, tokens, or configuration data.
UTF-8 is recommended for best compatibility.
Does this tool work offline?
Once loaded, the tool runs entirely in your browser and does not require
an internet connection.
Can I encode files or images?
This version is designed for text. Use a file-based Base64 tool if you
need to encode binary files or images.