UniToolHub

Base64 Decoder

Encode and decode Base64 strings online.

Advertisement

About Base64 Decoder

Encode and decode Base64 strings online. Convert text to Base64 and decode Base64 back to text. Supports standard Base64 and URL-safe Base64.

How to Use

  1. 1

    Enter input

    Type or paste text to encode, or Base64 string to decode.

  2. 2

    Choose mode

    Select Encode or Decode.

  3. 3

    Copy result

    Click copy to grab the output.

Examples

Encode
Input: Hello World
Output: SGVsbG8gV29ybGQ=
Decode
Input: SGVsbG8gV29ybGQ=
Output: Hello World

Frequently Asked Questions

What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data using 64 ASCII characters (A-Z, a-z, 0-9, +, /). It's commonly used in emails, URLs, and data storage.
What is URL-safe Base64?
URL-safe Base64 replaces '+' with '-' and '/' with '_' to avoid conflicts with URL characters.
Can I encode files to Base64?
This tool handles text encoding/decoding. For file encoding, you would need to read the file as binary first.