Text Base64

Encode or decode any text string.

File Encoder

Convert files to Base64 data URIs.

Live Preview

Preview decoded images instantly.

Private

Processing happens in your browser.

Professional Base64 encoder and decoder. Transform text, images, and binary files into Base64 format securely. No server uploads required.

Decoded preview
Data stays in your browser. Perfect for encoding sensitive keys or previewing data URIs.
0 B
Input Size
0 B
Output Size
0
Lines
0
Characters
Encoding Details
Active Mode Encode
Detected Type Plaintext
MIME Type -
Status Standby

Secure & Efficient Base64 Data Transformation

Base64 encoding is an essential bridge for transferring binary data across text-based protocols. Our Base64 Converter provides a robust environment for developers to encode assets or decode payloads with absolute precision and security.

Professional Feature Set

  • Client-Side Processing: All logic is executed in your browser. Sensitive data like API keys and credentials never hit our servers.
  • Binary to Data URI: Effortlessly convert images and files into data URIs for direct embedding in CSS or HTML.
  • Debugging & Inspection: Rapidly decode Base64 strings from JSON responses or JWT payloads for immediate inspection.

Standard Implementation Patterns

In modern architectural patterns, Base64 is frequently utilized for embedding small icons in stylesheets to reduce HTTP requests, transmitting authentication headers (Basic Auth), and storing serialized objects in text-based database fields. Our tool handles these scenarios by providing clean, standards-compliant output.

Enterprise-Grade Privacy

Operational security is our priority. This tool operates without cookies, server-side logs, or data tracking. Whether you are handling proprietary source code or confidential binary blobs, you can work with confidence knowing your data stays local.

Common Base64 Inquiries

Does Base64 encoding increase file size?

Yes. Base64 encoding typically increases the data size by approximately 33%. This is because every 3 bytes of binary data are represented by 4 characters of ASCII text.

When should I use Data URIs?

Data URIs are ideal for small assets like icons, SVG patterns, or tiny UI sounds. Embedding them directly in CSS reduces HTTP requests, which can improve perceived performance, though it should be avoided for large images due to the 33% overhead.

Is Base64 a form of encryption?

No. Base64 is an encoding scheme, not encryption. It is designed to be easily reversible and does not provide any security or obfuscation. Never use it to "hide" sensitive information without actual encryption wrappers (like AES).