Base64 Encoder
Encode UTF-8 text as standard Base64 or decode Base64 to text.
Encoding & Formats
Calculators and tools in the Encoding & Formats section.
Text Encoding
Calculators in the Text Encoding topic.
Open
URL Encoder
Encode text as a percent-encoded URL component (RFC 3986) or decode it back – locally in your browser.
Data Formats
Calculators in the Data Formats topic.
JSON Formatter
Check JSON for validity and display it formatted with indentation – locally in the browser, with no data transmission.