Base 64 Converter

Paste your code in the left pane, choose an action, and see the result on the right.

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Base64 Encoder & Decoder

Encode, decode, and understand Base64 with confidence. Perfect for developers handling files, APIs, and text-based protocols.

What is Base64?

Base64 encodes binary data into ASCII strings. It's commonly used to safely transmit images, files, or data over text-only mediums such as HTML, email, or JSON APIs.

Embedding images: Inline display in HTML/CSS
Data URIs: Emails or documents with embedded images
Store small files in JSON: PDFs, profile pictures
Encoding authentication data: Basic Auth headers
Cross-platform transmission: Safe data transport over HTTP/SMTP

Base64 is an encoding mechanism, not encryption.

Base64 Syntax

Base64 uses 64 ASCII characters: A-Z, a-z, 0-9, +, /. Output is padded with = to align properly.

ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/

1 byte → 2 Base64 chars + ==, 2 bytes → 3 chars + =, 3 bytes → 4 chars.

Base64 Encoder

Convert text or binary files into Base64 strings for safe embedding in HTML, CSS, email, or JSON.

Embed images and files inline
Transmit binary data via text protocols
Generate encoded API tokens or credentials
Store files inside JSON or configs

Try Base64 Encoder

Base64 Decoder

Decode Base64 strings back to text, files, or media content.

Restore embedded images, fonts, or files
Read Base64 API responses
Debug authentication headers or keys
Extract files from JSON, email attachments, or scripts

Try Base64 Decoder

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