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Codificador de URL

Codificación y Cifrado · Herramienta online gratuita

Codificar y decodificar URLs con porcentaje.

Equipo CoderNewbieÚltima actualización: 2026-09-20

Entrada61 caracteres

Salida

0 caracteres

Click "Encode" or "Decode" to transform your URL...

Codificar

Codifica con percent-encoding caracteres especiales como espacios, ampersands y parámetros de consulta para un transporte seguro de URL.

Decodificar

Convierte URLs codificadas con percent-encoding de vuelta a texto legible, con retroalimentación clara sobre secuencias mal formadas.

Seguro según RFC 3986

Usa encodeURIComponent — el estándar para codificar componentes de URL y valores de consulta.

Cómo usar Codificador de URL

1Enter or paste your data into the input field.
2Select the desired encoding, hashing, or encryption options.
3Click the action button to process your data.
4Copy the result from the output field.

Características

✓100% gratis — sin registro, sin suscripción, sin anuncios
✓Funciona íntegramente en tu navegador — los datos nunca salen de tu dispositivo
✓Rápida y ligera — resultados instantáneos
✓Multiplataforma — funciona en escritorio, tableta y móvil

¿Qué es Codificador de URL?

URL encoding (percent-encoding), defined by RFC 3986, converts characters that are not allowed in a URL into a % followed by two hexadecimal digits. Reserved characters (:, /, ?, #, [, ], @, !, $, &, ', (, ), *, +, ,, ;, =) and non-ASCII characters must be encoded when used outside their reserved purpose.

¿Cómo funciona Codificador de URL?

Each character is encoded as UTF-8 bytes, then each byte that is not an unreserved character (A-Z, a-z, 0-9, -, _, ., ~) is converted to %XX form. Spaces are encoded as %20 in paths or + in query strings (application/x-www-form-urlencoded).

Casos de uso habituales

✓Query parameters — pass special characters in URL search strings
✓OAuth callbacks — encode redirect URIs
✓REST API requests — encode path and query parameters
✓International domains — encode non-ASCII characters (IDN)

URL Encoding vs Base64

URL encoding preserves URL structure (only encoding unsafe characters) while Base64 encodes the entire input. URL encoding is reversible in-place; Base64 changes the format entirely. Use URL encoding for web addresses; use Base64 for embedding binary data in text.

Seguridad y privacidad

This tool runs entirely in your browser. URL encoding does NOT provide security — it only ensures characters are transport-safe. Never use it to hide sensitive data. For secure transmission use HTTPS; for data protection use encryption.

Detalles técnicos

Standard: RFC 3986. Unreserved: A-Z a-z 0-9 - _ . ~. Reserved: : / ? # [ ] @ ! $ & ' ( ) * + , ; =. Percent-encoded: %XX (hex). Space: %20 (path) or + (query). Non-ASCII: UTF-8 bytes each encoded as %XX. JavaScript: encodeURIComponent() encodes all except A-Z a-z 0-9 - _ . ! ~ * ' ( ).

Preguntas frecuentes

What is the difference between encodeURI and encodeURIComponent?

encodeURI preserves reserved URL characters (: / ? #) for full URLs. encodeURIComponent encodes everything except A-Z a-z 0-9 - _ . ! ~ * ' ( ), for use on individual query parameters.

Why is space encoded as %20 or +?

%20 is the RFC 3986 standard for paths. + is the application/x-www-form-urlencoded convention for query strings in HTML forms. Both are valid but context-dependent.