Base64 Decoder

Decode Base64 strings back to original text. Free online Base64 decoding tool.

This free online converter tool runs entirely in your browser. No data is sent to any server — your input stays private and secure.

Features

• Free to use — no signup or registration required
• Works offline — processes everything locally in your browser
• Privacy-first — no data leaves your machine
• Fast and responsive — instant results

Read our developer guides for tips and best practices.