Base64 Encoder & Decoder
Encode text and files to Base64 or decode Base64 strings back to original content with instant client-side processing.
What is Base64 Encoder & Decoder?
Base64 Encoder & Decoder is a versatile online developer tool that converts between plain text binary files and Base64-encoded strings. Base64 encoding transforms binary data into an ASCII string format using a 64-character alphabet making it safe for transmission in URLs email attachments JSON payloads and HTML data URIs. This Base64 tool handles both text and file uploads supports standard and URL-safe Base64 variants and provides real-time conversion with large file support. Whether you need to embed images as Base64 in CSS encode API credentials or decode data URI schemes this Base64 encoder delivers fast reliable and private processing directly in your browser without any server-side data handling.
When to Use Base64 Encoder & Decoder
Use when encoding credentials for HTTP headers, embedding images in HTML/CSS, encoding binary data for JSON APIs, or decoding Base64 data URIs.
How to Use Base64 Encoder & Decoder
Choose encode or decode mode. Enter text or upload a file for encoding, or paste a Base64 string for decoding. Results appear instantly. Copy to clipboard or download as a file.
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