Encoding developer tools
Encode or decode Base64 and URL (percent) encoding. Base64 is not encryption. URL encoding uses encodeURIComponent.
Base64 and URL encode/decode for transport and query values—not for secrecy.
More in this category: Base64 Encoder
Base64 Encoder
Encode text as Base64 for data URLs, HTTP Basic auth headers, or systems that only accept ASCII.
Base64 Decoder
Decode a Base64 string back to readable text, for example to inspect an encoded config value or email header.
URL Encoder
Percent-encode a value so it can be placed safely in a query string or URL path segment.
URL Decoder
Turn percent-encoded URLs and query strings back into readable text, for example to inspect tracking links or redirect parameters.
HTML Encoder
Escape text so it displays literally inside HTML, for example to show a code sample on a web page.
HTML Decoder
Turn HTML entities back into readable characters, for example text copied from page source or an RSS feed.
Related guides
- JSON Formatting and Validation: Complete Guide
- JSON vs JSON5: What's the Difference?
- Base64 Encoding Explained