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Base64 Encoder & Base64 Decoder.

Use this Base64 encoder and Base64 decoder online to base64 encode text, decode base64 strings, convert base64 to text, and process data privately. All processing executes immediately in your browser sandbox. 100% private, offline-first.

Free online text tool

Base64 encoder and Base64 decoder online

Use this Base64 encoder to convert plain text into Base64 encoding, or use the Base64 decoder to decode Base64 back into readable text. Paste your text or encoded string and convert it instantly in the browser.

This Base64 converter supports common tasks like base64 encode, base64 decode, decode base64, base64 decode online, base64 encoder, base64 decoder, and base64 to text conversion without installing an extension.

AllToolsDeck keeps Base64 conversion private. The tool performs Base64 encoding and decoding locally, so your pasted text and Base64 strings are not uploaded to a server.

How to use the Base64 converter

  1. 1. Enter plain text in the left editor to encode it as Base64.
  2. 2. Click Encode to generate a Base64 encoded string.
  3. 3. Paste a Base64 string in the right editor and click Decode to convert Base64 to text.
  4. 4. Copy the output or clear both editors to start again.

Base64 Encoder & Decoder FAQ

Can this encode Base64?

Yes. Type or paste text and click Encode to convert the content into a Base64 encoded string.

Can this decode Base64 to text?

Yes. Paste a valid Base64 string and click Decode to convert Base64 to readable text.

Is Base64 decode online private?

Yes. The Base64 decoder runs locally in your browser, so your text is not sent to AllToolsDeck servers.

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More FAQ

More questions about using this tool

When should I use Base64 Encoder & Base64 Decoder?

Use Base64 Encoder & Base64 Decoder when you need a focused browser utility for a quick text & data tools task without opening heavier software or setting up a separate workflow.

Should I review the output before using it?

Yes. Always check the generated, converted, formatted, or calculated result before sharing it, saving it, or using it in production work.

Can I use this tool for sensitive work?

For sensitive files or text, prefer tools that process locally in the browser and avoid pasting secrets, private credentials, legal documents, or financial data into any tool unless you understand how it handles data.

What should I do if the result looks wrong?

Check the input format, remove unsupported characters or damaged file content, try a smaller sample, and compare the result with the original before continuing.

Are online tools good for repeated daily tasks?

Yes. Browser tools are best for small repeatable jobs such as formatting, converting, compressing, comparing, generating, previewing, and calculating without installing extra apps.

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BASE64 ENCODER & DECODER
RAW TEXT
BASE64 ENCODED STRING