Free Base64 Encoder & Decoder

Encode text to Base64 and decode Base64 strings back to text. Supports standard and URL-safe Base64. Browser-based.

💻 Base64 Encoder & Decoder

URL-safe Base64

Frequently Asked Questions

Base64 is used to encode binary data as ASCII text for transmission in emails, URLs, JSON payloads, CSS data URIs, and HTTP Basic Authentication headers.

URL-safe Base64 replaces + with - and / with _ and removes = padding. This makes the encoded string safe to include in URLs without percent-encoding.

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