不上传 · 浏览器内处理
Base64 转换
把文本编码为 Base64，或将 Base64 解码为文本。支持 URL 安全模式。
解码会自动处理空白、换行、URL-safe 字符和缺失的填充。
收藏后可在首页快速找到
How to use it
1Step 1Pick a file in Input, or drag and drop it
2Step 2Press Encode → and it is done
3Step 3Download the result, or send it with the share button
If the result looks off
The file will not open
Check that the format is supported. If it is password protected, unlock it and try again.
I do not like the result
Your original is untouched — change the options or preset and try again.
常见问题
Are files uploaded?
No. Files are read inside your browser and converted to data URLs.