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Base64 Encoder

Convert text (UTF-8 safe) into Base64 for transport in URLs, headers and JSON.

About the Base64 Encoder

Base64 exists so binary or awkward text can travel through channels that only handle plain ASCII — HTTP headers, JSON payloads, data URIs, email bodies.

This encoder converts text to Base64 with correct UTF-8 handling, so accented and non-Latin characters survive the round trip.

How to use the Base64 Encoder

  1. Paste the text you want to encode.
  2. Copy the Base64 output.
  3. Use it where plain ASCII is required: a data URI, a JSON field, a basic-auth header.
  4. Confirm the round trip by decoding it back before relying on it.

Frequently asked questions