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Frequently asked questions
What is Base64 used for?
Base64 encodes binary or text data as plain ASCII so it can be safely embedded in URLs, JSON, data URIs, and tokens. This tool encodes and decodes it instantly.
Can it decode Base64 back to text?
Yes — switch to Decode mode and paste any Base64 string to get the original text back.
Is it private?
Yes — encoding and decoding run entirely in your browser, so nothing you paste is ever uploaded.