Base64 转文本
将 Base64 解码为文本。
Paste Base64 to decode it back to text. Invalid Base64 shows a clear error, and UTF-8 content (accents, emoji) decodes correctly. Everything runs locally in your browser.
工作原理
- 1 Paste your Base64.
- 2 The decoded text appears live.
- 3 Copy the result.
常见用例
- Read a Base64-encoded value.
- Decode data from a config or token.
- Inspect encoded content.
- Recover text from a data URL.
常见问题
Is my text sent to a server?
No. Everything runs locally in your browser — your text is never uploaded, stored or logged.
What if the input is invalid?
A clear error is shown. Make sure you pasted only the Base64 data (characters A–Z, a–z, 0–9, + and /, with optional = padding).
Is it really free?
Yes — free, with no signup and no limits.