Base64 Decoder — Decode Base64 Online
Decode Base64 strings back to readable text in your browser. Clear error messages for invalid padding or characters. Supports standard and URL-safe Base64 with UTF-8 output.
Your data never leaves your browser
Base64 input
Decoded text
About this tool
UTF-8 decodeURL-safeError detectionLive outputPrivate
How to use
- Paste a Base64 string in the input panel.
- Select Standard or URL-safe variant if needed.
- Read the decoded text in the output panel.
Examples
Decode greeting
SGVsbG8sIFdvcmxkIQ==
Hello, World!