A virtual teacher who reveals to you the great secrets of Base64

Base64 Validator

The Base64 validator checks whether the submitted text is a valid Base64 encoded string. It allows you to validate online a variety of Base64 standards. Therefore, try to specify another standard, if one of them failed.


If you do not know which standard to choose, check the standard detector. If you want to decode a string, use the Base64 decoder. If your string contains invalid characters or cannot pass the validation, use the Base64 Repair Tool.

Comments (4)

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  • Sarkout,
    Should also check for URL safe base 64 strings.
    • Administrator,
      This validator already supports this standard. To validate it just select “Base64URL” from the “Base64 Standard” drop-down list.
  • Johnc10,
    Hi there, I found your web site by the use of Google while searching for a similar matter, your site came up, it seems to be good. I've bookmarked it in my google bookmarks. cdgbfdckckke
    • Administrator,
      Hello John! I'm glad you found it useful. If you encounter any problems using this site, please let me know.
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