Base64 Toolkit – Pastel

Encode/decode Base64 for text and files. UTF-8 safe. No permissions required.

Base64 Toolkit – Pastel is a fast, minimalist popup utility for converting data to and from Base64. Paste or type text to encode/decode instantly, or work with files and copy the result in one click. It’s UTF-8 safe, works locally in your browser, and asks for no unnecessary permissions—ideal for developers, QA, analysts, and anyone who needs clean, reliable Base64 handling without clutter. Highlights Encode/decode Base64 for text and files UTF-8 safe conversions Works locally; no extra permissions Compact, distraction-free popup UI How it works Click the extension icon to open the popup. Enter text (or select a file) and choose Encode or Decode. Copy the output and continue your workflow.