Image to Base64 Converter

A Base64 data URI carries an entire image inside a single string, which can be pasted directly into HTML or CSS where a file path would normally go. This reads a file's bytes and produces that string, ready to copy or download as a text file. Front-end developers use it for small icons and background graphics that would otherwise cost a separate network request, and it is genuinely handy for embedding an image in a self-contained HTML file, an email template, or a document that has to travel without its assets. The size cost sets the sensible boundary: the string runs roughly a third larger than the original file, so this suits small graphics rather than photographs. Inlined images also cannot be cached separately by the browser and they bloat whatever file they sit in, which is felt on every subsequent page load.