Base64 Is Not Encryption
Base64 is useful for transport and formatting, but it does not protect data. If a secret is Base64 encoded, anyone can decode it without a key.
Understand what encoding does
Encoding changes representation so data can move through systems that expect text. It does not add secrecy, authentication, or access control.
Treat encoded secrets as secrets
API keys, JWTs, credentials, tokens, and customer data remain sensitive after Base64 encoding. Do not paste them into public tickets, screenshots, docs, or logs.
Decode before sharing samples
If you receive an encoded sample, decode it locally and check whether it contains private values before forwarding or publishing it.
Use placeholders in examples
For documentation and bug reports, replace secrets with fake values that preserve structure but cannot authenticate to real systems.
Use encryption when secrecy matters
When data needs confidentiality, use proper encryption, key management, and access controls rather than relying on Base64 or similar encodings.
Related tools
Base64 Tool decodes locally in your browser. Use JSON Toolbox to inspect decoded structured payloads.