Utilidades

Codificador de Base64

Codifica y decodifica Base64 en línea.

Datos clave

Base64 turns arbitrary bytes into 64 safe characters. Paste text to get a Base64 string or decode a string back. It runs on the server, supports UTF-8 and accepts both the standard and the URL-safe alphabet (- and _), with optional padding. It is not suitable for files and images.

Precio: Gratis
Registro: No necesario
Procesamiento: On our server: the pasted text is sent by POST and encoded or decoded with PHP’s base64_encode and base64_decode (strict mode)
Entrada: Text (for decoding, a Base64 string in the standard alphabet)
Límites: No sign-up; the tool itself sets no rate or length limits, only the server’s request-size limits apply; files and images are not supported
Resultado: A Base64 string or the decoded text in a read-only field; a Copy button; on error, an “invalid Base64 string” message
Última actualización: 2026-10-26

Codificador / Decodificador de Base64

Codifica y decodifica datos en formato Base64. Se usa para transmitir datos binarios en protocolos de texto, incrustar imágenes en CSS/HTML y trabajar con APIs.

Codificación de texto a Base64

Decodificación de Base64 a texto

Compatible con UTF-8

Cómo usar

Pega el texto o una cadena Base64 en el campo de entrada
Elige una operación: codificar o decodificar
Copia el resultado

FAQ

Base64 represents arbitrary bytes with 64 printable characters (A–Z, a–z, 0–9, + and /) so they can travel safely in text: in JSON, XML, headers and emails. It is encoding, not encryption.

Paste the string, choose decode mode and click the button. If the string is valid you see the original text; spaces and line breaks are ignored and missing trailing “=” signs are accepted.

Most often the string has characters outside the standard alphabet, such as “-” and “_” from Base64URL (as in JWTs). Replace “-” with “+” and “_” with “/” and try again.

Yes, text is encoded as bytes, so Cyrillic, Polish and Ukrainian letters are handled correctly. When decoding, the result is shown as UTF-8 text.

No, the tool works only with pasted text. Files, images and data URIs need tools with file upload.

PromoPilot frente a alternativas: comparación

Comparamos solo lo que está confirmado en las páginas de cada servicio. Donde no pudimos confirmar un dato, la celda muestra "—".

Parámetro	PromoPilot	Base64 Encode (base64encode.org)	Base64.Guru	CyberChef (GCHQ)
Text encoding and decoding	✓	✓ with a choice of charset from a long list	✓ encoders and decoders for text, hex, URL, CSS, HTML	—
Files, images, PDF	✗	✓ a file upload form for binary data	✓ images, PDF, audio, video, files	—
Funciona sin enviar nada a un servidor	✗	—	—	✓ “no server-side component”; can be run locally
Base64URL (URL-safe)	✗	—	Separate tools such as “Normalize Base64” and “Base64 Standard Detector”	—

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Dónde somos más débiles: text goes to our server, there is no file or image support and no charset choice.

Cuándo elegir PromoPilot: When you want to quickly encode or decode a short text string (a token, JSON, a header fragment). For files, images or handling secrets without sending them to a server use other tools.

Comprobado el: 2026-10-16. "—" significa que no está confirmado en la página oficial; las condiciones y los precios cambian, así que consulta los sitios de cada servicio.