URL encoder / decoder

    Percent-encode and decode URL strings and query components.

    Loading tool…

    About the url encoder / decoder

    Percent-encodes and decodes URL text, with a choice between component encoding — which escapes the reserved characters &, =, ?, / and # — and whole-URI encoding, which leaves them intact. Picking the wrong one is the usual cause of broken query strings.

    Frequently asked questions

    Component or whole URI?

    Use component encoding for anything going inside a query parameter value. Use whole-URI encoding when tidying an entire address that already has its structure and you only want spaces and accents escaped.

    Why is a space sometimes + and sometimes %20?

    The plus form belongs to HTML form submission encoding. Percent-twenty is correct everywhere else, including URL paths, and is what this tool produces.

    HTML entity escaper

    Escape and unescape HTML entities so markup can be shown as text.

    URL parser

    Break a URL into protocol, host, port, path, query parameters and hash.

    Device information

    Show everything the browser reveals about your screen, device and connection.

    Basic auth generator

    Build an HTTP Basic Authorization header from a username and password.

    Open Graph meta generator

    Generate Open Graph and Twitter card meta tags for a page.

    OTP code generator

    Derive TOTP codes from a Base32 secret and build the matching otpauth URI.

    See all 15 web tools

    Often used alongside

    Converters

    Text to Unicode

    Convert text to Unicode code points or HTML entities, and decode them again.

     Development

    SQL formatter

    Format SQL for a specific dialect with consistent indentation and casing.

     Math

    Percentage calculator

    Percentage of a number, what percent one number is of another, and change.