Base64 Encoder / Decoder

Instantly encode or decode text using Base64 format locally in your browser.

Input

Output

What is Base64?

Base64 is an encoding scheme that converts binary data into an ASCII string format by translating it into a radix-64 representation. It is commonly used when there is a need to encode data that needs to be stored and transferred over media that are designed to deal with textual data. This helps ensure that the data remains intact without modification during transport.


Is it secure?

Base64 is an encoding method, not a cryptographic encryption. It provides no security or privacy if intercepted. However, using this tool is completely safe because the encoding/decoding is performed client-side via JavaScript. Your text never leaves your computer.

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Frequently Asked Questions

What is Base64 encoding used for?
Base64 is used to encode binary data (like images or files) into a standard ASCII string. This is commonly used to safely embed images directly into CSS/HTML or securely transmit data across REST APIs.
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption. Anyone can decode a Base64 string back to its original form. Do not use Base64 to hide sensitive passwords or tokens.
Can I encode images into Data URIs?
Yes. By converting an image into Base64, you can embed it directly into an img src="..." tag, eliminating an external HTTP request.
Why do I see equal signs (=) at the end of the string?
The equal signs are used for padding. Base64 encodes data in 24-bit chunks. If the input data doesn't perfectly divide by 24, padding characters are added to complete the final chunk.

About the Base64 Encoder & Decoder Tool

A fast, reliable tool to encode text into Base64 format or decode Base64 strings back into human-readable text. Essential for developers working with APIs, data URIs, or basic authentication.

How to Use

Simply type or paste your text into the input field. Select whether you want to encode to Base64 or decode from Base64, and the result will appear instantly.

Why Use ToolFlare?

Frequently Asked Questions

Base64 is used to encode binary data (like images or credentials) into an ASCII string format, allowing it to be safely transmitted over text-based protocols like HTTP.

No! Base64 is an encoding format, not encryption. It provides no security and can be easily decoded by anyone. Never use it to secure sensitive data without true encryption.

No, all encoding and decoding happens locally in your browser.

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