Base64 Encode & Decode Online

This Base64 encoder decoder tool is useful for developers, students, and security professionals who need quick encoding or decoding of data for testing, debugging, or learning purposes. It works entirely in your browser without storing or tracking any data.

Base64 encoding converts binary or text data into a readable ASCII format, making it ideal for secure and reliable data transfer. It is widely used in APIs, JWT tokens, email attachments, authentication headers, and web applications where data integrity matters. This tool allows you to quickly encode or decode Base64 strings with complete privacy.

• ✔ 100% client-side processing — no data sent to any server
• ✔ Fully supports Unicode and special characters
• ✔ Fast, accurate, and instant conversion