CareerByteCode

Base64 Encode and Decode Online

For engineers handling Kubernetes secrets, HTTP Basic auth headers and encoded config values. Encode or decode text instantly, with correct handling of non-English characters and an optional URL-safe alphabet.

FreeRuns in your browserNothing uploadedNo sign-up neededAll 16 tools in the DevOps Toolbox
Keep this resultSign in to email it to yourself or save it to your profile. The tool itself never needs an account.

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How to use

How to use the Base64 Encoder and Decoder

  1. Type or paste your text into the Text box.
  2. Click Encode to turn it into Base64, or Decode to turn Base64 back into text.
  3. Tick URL-safe to use - and _ instead of + and / and drop the = padding.
  4. Copy the result with the Copy button.
Worked example

An example, step by step

You enter

Hello CareerByteCode

The tool shows

SGVsbG8gQ2FyZWVyQnl0ZUNvZGU=

FAQ

Questions about the Base64 Encoder and Decoder

How do I decode a Kubernetes secret value?

Copy the value from the data field of the Secret, paste it here and click Decode. Kubernetes stores secret data as standard Base64, so leave URL-safe unticked.

What is URL-safe Base64?

It swaps + for - and / for _ and usually removes the trailing = padding, so the string can sit in a URL or filename without escaping. JWTs use this variant.

Is Base64 a form of encryption?

No. Base64 is only an encoding that anyone can reverse, so never treat a Base64 string as a protected secret.

Is the Base64 Encoder and Decoder free and private?

Yes. It is free, needs no sign-up and runs entirely in your browser, so what you type is not uploaded. You only sign in if you want to email a result to yourself or save it to your CareerByteCode profile.

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