Base64 Toolkit – Pastel

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.