Base64 - Encoder & Decoder

Quickly encode or decode Base64 text with proper UTF-8 support — fully offline and local.

Base64 – Encoder & Decoder is a fast, lightweight, and privacy-focused Chrome extension that allows you to convert text to and from Base64 instantly. Whether you are a developer, student, or someone who frequently works with encoded data, this tool offers a simple and reliable Base64 conversion experience directly inside your browser. This extension runs 100% offline and performs all encoding/decoding locally in your device, ensuring your text never leaves your computer. With proper UTF-8 support, it accurately handles emojis, accented characters, symbols, and multilingual text without breaking or producing invalid Base64 results. ⭐ Key Features 1. Instant Base64 Encoding & Decoding Convert text with a single click — no external services required. 2. Full UTF-8 Compatibility Works flawlessly with emojis (😊), symbols (★) and non-English languages. 3. Offline & Secure Processing happens entirely in your browser. No servers. No data collection. 4. Swap Input and Output Switch encoded ⇄ decoded text instantly. 5. Copy / Paste Shortcuts Quickly copy results or paste from clipboard for fast processing. 6. Clean & Modern UI A smooth, dark-themed interface designed for speed and clarity. ⭐ Why Install This Extension? If you frequently work with Base64 (developers, security professionals, students), this tool saves time and makes encoding/decoding significantly easier. No more websites, no ads, no internet needed — everything is instantly available in your browser toolbar. 🔒 Privacy Your text never leaves your device. No tracking, no analytics, no data collection.