Base64 Encoder / Decoder - Free Online Tool
Encode text to Base64 or decode Base64 strings instantly. Free online Base64 converter with file support — 100% private, works in your browser.
Encode text to Base64 or decode Base64 strings instantly in your browser
Base64 Encoder / Decoder Features
- Instant Conversion: Encode and decode Base64 strings in real-time
- Two-Way Conversion: Easily switch between encoding and decoding with one click
- File Support: Encode files and images to Base64 data URIs for embedding
- 100% Private: All processing happens in your browser — nothing is uploaded
How to Use Base64 Encoder / Decoder
Encode or decode Base64 in three steps
- Step 1: Enter or Upload — Paste text or upload a file to encode, or paste Base64 to decode
- Step 2: Convert — Click Encode or Decode to instantly transform your data
- Step 3: Copy Result — Copy the result to clipboard or download as a file
Frequently Asked Questions about Base64 Encoder / Decoder
What is Base64 encoding?
Base64 is a method of encoding binary data into ASCII text. It's commonly used in emails, data URLs, and API authentication.
Is the Base64 tool free?
Yes, completely free with no signup, no limits, and no data collection.
Can I encode files?
Yes, you can upload files up to 5MB and get their Base64 data URI representation.
Is my data safe?
Yes, everything is processed entirely in your browser. No data is sent to any server.
Does it support Unicode text?
Yes, our encoder properly handles Unicode characters including emojis and non-Latin scripts.
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