📦 Base64 Encoder Decoder Online Free

Encode text to Base64 or decode Base64 back to text instantly. No signup, no server upload, 100% browser-based.

Input Text / Base64

Base64 Encoder Decoder Online Free — Encode and Decode Instantly

Our free online Base64 encoder decoder converts text to Base64 encoding and decodes Base64 strings back to readable text instantly. Works in browser — no server upload, no signup, completely private.

What is Base64?

Base64 is an encoding scheme that converts binary data into ASCII text. It uses 64 characters (A-Z, a-z, 0-9, +, /) to represent binary data. Commonly used in APIs, email attachments, data URLs, and authentication tokens.

Common Uses for Base64

Embedding images in HTML/CSS as data URLs
Encoding API credentials (Basic Auth)
Storing binary data in JSON or XML
Email attachments (MIME encoding)
JWT token payload encoding

How to Use the Base64 Encoder Decoder

Type or paste your text into the input box
Click Encode to Base64 to convert text, or Decode from Base64 to reverse it
View the result instantly
Click Copy to copy the result to your clipboard

Frequently Asked Questions

How do I encode text to Base64 online?

Paste text, click Encode to Base64. Copy result instantly. Free, no signup.

How do I decode Base64 online?

Paste Base64 string, click Decode. Original text appears instantly. No server upload.

What is Base64 encoding?

Base64 converts binary data to ASCII text using 64 characters. Used in APIs, emails, and data URLs.

Is my data sent to a server?

Never. All encoding/decoding happens in your browser — your data never leaves your device.

Does Base64 encrypt my data?

No — Base64 is encoding, not encryption. Anyone can decode it. Use encryption (AES etc) for security.

📦 Base64 Encoder Decoder Online Free