Base64 Decode
Encoding ToolsDecode standard or URL-safe Base64 strings back to plain text. Auto-detects the variant and handles missing padding gracefully.
100% client-side processing
How to Use Base64 Decode Online
- Paste your data into the input field above
- The result appears instantly in the output area
- Click "Copy" to copy the result to your clipboard
Decode Base64 strings to plain text. Runs 100% client-side — no data is sent to any server.