Conversores
Base64 Encode / Decode
Convert plain text to Base64 and back.
Por qué usar esta herramienta
03Encode or decode Base64 values directly in the browser for quick debugging and formatting work.
Base64 Tool makes it easy to inspect or transform encoded strings without leaving the page.
It is useful when working with APIs, tokens, and embedded assets.
Cómo usarla
02Revisiones rápidas antes de copiar
03Confirm the input is the format you intended.
Scan the result before using it in a document, URL, config, or message.
Copy only the output you need.
Preguntas frecuentes
03
Can I decode invalid Base64?
If the input contains characters outside the Base64 alphabet (A–Z, a–z, 0–9, +, /, =) or has incorrect padding, the decoder returns an empty result without crashing. This is intentional — a single corrupt character can shift the entire byte boundary. If you get an empty output, check whether the input contains line breaks, spaces, or URL-safe characters like - and _ (which belong to Base64url, a variant used in JWTs and URL tokens).
Does the text leave the browser?
No. Encoding and decoding happen entirely in the browser tab.
Can I decode Base64 images or binary data?
The tool is designed for text content. Binary or image Base64 may not decode cleanly to readable text.
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