Base64 Encoder/Decoder

Base64 encoding converts binary data — images, fonts, files — into a plain ASCII string that can be safely embedded in HTML, CSS, JSON, or transmitted over text-based protocols without corruption. It is used to embed small images directly into HTML as Data URIs, encode file attachments in email APIs, pass binary data through JSON APIs that do not support raw binary, and store binary content in text-based databases.

VIPToolkit's Base64 Encoder and Decoder handles both directions: paste a string to encode it to Base64, paste a Base64 string to decode it back to readable content, or upload a file (image, SVG, font, or any binary) to generate a Base64 Data URI instantly. Full UTF-8 support means it handles non-ASCII characters correctly. All processing uses the browser's native FileReader API — no server upload, no data exposure.

Common developer use cases: generating Data URI strings for small icons to avoid extra HTTP requests, encoding API payloads, decoding Base64 JWT payloads for inspection, and testing Base64 encoded email attachments.