Load Sample:
Input0 chars
Base64 Output0 chars

Encode Text to Base64

Paste or type text to encode it to Base64 format

Encode Text

Convert any text, JSON, or data to Base64 format for safe transmission

Encode Files

Upload images, documents, or any file to get Base64 and data URIs

Decode Base64

Convert Base64 strings back to readable text or binary data

URL-Safe Mode

Generate URL-safe Base64 for use in URLs and filenames

Base64 Tips

  • Size increase: Base64 encoding increases data size by approximately 33%
  • Character set: Standard Base64 uses A-Z, a-z, 0-9, +, and / with = for padding
  • URL-safe: Replace + with -, / with _, and remove = padding for URLs
  • Data URIs: Use format data:type;base64,DATA to embed in HTML/CSS
  • Binary data: Base64 is ideal for transmitting binary data in text-only systems

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