Base64 Encoder — Free Online, No Upload Needed
Encode text to Base64 or decode Base64 back to text. UTF-8 safe.
Text & DocsFreeNo uploadOffline-capable
Open the interactive base64 encoder tool — free, runs in your browser.
About this base64 encoder
Encode API tokens, data URIs or config blobs to Base64, or decode Base64 back to readable UTF-8 text — including emoji and non-Latin scripts that break naive encoders.
How to use
- Paste your input.
- Click Encode to Base64 or Decode to Text.
Common use cases
- Encode an image or font as a data URI for an HTML or CSS file.
- Decode a Base64 API token or JWT segment to inspect it.
- Move binary configuration blobs between systems that only accept text.
Every file is processed locally in your browser. Nothing is uploaded, logged or stored, and there is no account to create.
Base64 Encoder FAQ
Does it support unicode?
Yes, it encodes via UTF-8 bytes, not latin-1.
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