Base64 Encoder

Encode text and data to Base64 format online. Free Base64 encoding tool for developers.

This free online converter tool runs entirely in your browser. No data is sent to any server — your input stays private and secure.

Features

• Free to use — no signup or registration required
• Works offline — processes everything locally in your browser
• Privacy-first — no data leaves your machine
• Fast and responsive — instant results

Read our developer guides for tips and best practices.