Base64 Encoder
Instantly encode and decode plain text using the Base64 encoding algorithm.
About this tool
Base64 is a binary-to-text encoding scheme designed for the transmission of binary information (such as images, files, or data structures) across text-based protocols. Because internet systems, including email (SMTP) and HTTP requests, utilize ASCII characters, Base64 converts raw data into a supported format, preventing data corruption during transmission.
This Base64 encoding and decoding utility encodes plain text into Base64 format or decodes strings back into human-readable text. It is used when structuring API payloads, parsing data streams, checking server logs, or inspecting JWT tokens. The tool provides UTF-8 encoding support, ensuring that special characters and multi-byte text are processed correctly. This tool is free to use and requires no registration.
All encoding and decoding operations run client-side on the local device. The data is not transmitted to external servers.