What is Base64?
Base64 is a binary-to-text encoding: any byte sequence is represented as ASCII letters, digits, +, /, and padding =. It is widely used in JSON APIs, email MIME, data URLs in HTML, and storing small blobs in config. This tool helps you quickly encode human-readable text to Base64 or reverse Base64 back into readable UTF-8 text for debugging and integration.
How this encoder and decoder works
Choose Encode to turn plain text into a single Base64 string using your browser’s built-in APIs (with UTF-8-safe handling for international characters). Choose Decode to paste a Base64 payload: line breaks and spaces are removed automatically, then the bytes are interpreted as UTF-8 text. Click Convert to run the operation. Use Swap to move the result into the input field and flip modes — handy when you need to round-trip a value. Clear resets both panels.
File upload (encode mode)
In Encode mode you can upload a file. The tool reads it as a data URL and copies only the Base64 segment after the comma (the part that typically follows data:image/png;base64, in HTML). Use this to grab a Base64 blob for APIs or embeds without installing desktop software.
Privacy
Encoding and decoding run entirely in your browser tab. Your text and files are not uploaded to Dynamic Duniya servers for conversion. Avoid pasting highly sensitive secrets on shared machines; use Clear when finished.