Whether you are embedding images in HTML, building API payloads, or decoding data URIs, this tool handles every Base64 use case — with code generation for your language of choice.
Open Base64 Tool →REST APIs and JSON payloads cannot carry raw binary. Base64 is the standard way to embed files, images, or certificates in JSON.
Embed fonts, icons, and images directly in HTML and CSS using data URIs to reduce HTTP requests and enable offline rendering.
MIME email attachments use Base64 to encode binary files into ASCII for safe transit through email relay servers.