Learn how to convert images to Base64 for inline embedding in HTML, CSS, and APIs. Understand when it helps performance and when it hurts, with practical code examples.
Understand what Base64 encoding is, why it exists, how it works under the hood, and when to use it. A clear, practical guide with code examples in JavaScript, Python, and more.
Break down the Base64 alphabet, padding rules, and byte groups so every conversion makes sense.
Discover where Base64 encoding shines, from email attachments to data URLs and test fixtures.
Tips for resolving decoding errors caused by whitespace, character sets, or transport issues.
Understand the critical difference between Base64 encoding and encryption, and why you should never use Base64 to secure sensitive data.
Encode and decode Base64 text, files, and images instantly — 100% client-side, no data sent to servers.
Open Base64 Encoder