Base64 Encoder & Decoder Online

Encode or decode your text using our free online Base64 Encoder & Decoder tool. Whether you're a developer working with API data, a marketer embedding images in HTML emails, or a tech enthusiast experimenting with encoding — this tool gets the job done instantly and securely.

Select Character Set:

Input Text:

Output:

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that converts data into ASCII string format. It's commonly used to transfer data over media that are designed to deal with text, such as embedding images in web pages, sending attachments in emails, or storing data in JSON.

Features of Our Base64 Tool

Fast and accurate encoding/decoding
Supports all character sets (ASCII, UTF-8, etc.)
Works on any device, directly in your browser
No login required and free

How to use

Simply paste your input text or Base64 string into the respective box, choose whether to encode or decode, and click the button. The result will appear instantly, ready to copy and use in your project.

Whether you're converting text to Base64 or decoding encoded data, BitStackHub's tool is your go-to solution — clean, fast, and completely free.