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Free Base64 encoder and decoder for text. Supports standard and URL-safe alphabets. Runs locally in your browser.
Encode turns text into Base64. Decode turns Base64 back into text. Use URL-safe mode for tokens embedded in links.
Base64 Encode Decode is a free online utility on QuikUtil. Free Base64 encoder and decoder for text. Supports standard and URL-safe alphabets. Runs locally in your browser. It is designed for quick tasks without creating an account. Prefer this page when you need base64 encode decode in a browser.
Part of the QuikUtil tools collection. Most tools process data locally when possible.
Base64 encodes binary data as ASCII text using 64 characters. It is common in data URLs, tokens, and APIs.
A variant that replaces + and / with - and _ and often omits padding, safer inside URLs.
No. Invalid characters or padding produce an error.
No. Encoding and decoding run in your browser.