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Base64 Encoding and Decoding Tool

Easily encode and decode text, files, and data using Base64 format with our browser-based tool. Perfect for data transmission, embedding, and secure data handling.

Text Encoding and Decoding

Convert plain text to Base64 format for safe transmission and storage, or decode Base64 strings back to readable text. Support for various character encodings and special characters.

File to Base64 Conversion

Convert any file type to Base64 string representation, ideal for embedding files in web pages, emails, or JSON data. Support for images, documents, audio, and video files.

Base64 to File Reconstruction

Convert Base64 encoded strings back to their original file format. Download reconstructed files with proper MIME types and original file names when available.

Data URL Generation

Create data URLs from Base64 encoded content for direct embedding in HTML, CSS, or JavaScript. Perfect for embedding images and other assets directly in web pages.

Batch Processing

Process multiple text strings or files simultaneously with batch encoding and decoding capabilities. Save time when working with large sets of data.

Character Set Support

Comprehensive support for various character sets and special characters. Handle international text, emojis, and special symbols with accurate encoding.

Format Validation

Validate Base64 strings for proper formatting and detect common errors. Our tool identifies malformed Base64 data and provides helpful error messages.

Security Features

All encoding and decoding happens locally in your browser with no data sent to external servers. Complete privacy protection for sensitive information.

Developer-Friendly Features

Tools and features designed for developers including copy-to-clipboard, format options, and integration capabilities for various programming workflows.

Common Use Cases

Base64 encoding is essential for many applications including email attachments, data URIs, API data transmission, cryptographic operations, and database storage.