Base64 encoder/decoder
Encode and decode Base64 with UTF-8 support.
Input text
Result
Tip: This tool uses encodeURIComponent + btoa, fully supporting UTF-8 Chinese characters.
Sponsored
Features
- Encode text into Base64
- Decode Base64 into readable text
- Supports URL-safe Base64 variants
About Base64 encoder/decoder
Encode and decode Base64 text online with UTF-8 support. This tool runs entirely in your browser. No data is uploaded to the server, helping protect your privacy. Everything works instantly with no software or plugin required.
Sponsored
More tools in Developer tools
JSON formatter
Format, minify, validate, and escape JSON online.
Timestamp converter
Convert Unix timestamps and dates in seconds or milliseconds.
URL encoder/decoder
Encode and decode URLs and special characters.
MD5/SHA hash
Generate MD5, SHA1, SHA256, and SHA512 hashes locally.
Base converter
Convert between binary, octal, decimal, hex, and bases 2-36.
UUID generator
Generate UUID v4 values in batches with format options.