Inspect encoded values
Decode Base64 strings from examples, logs, or configuration files to understand their plain text content.
Base64 Encoder Decoder
Convert text to and from Base64
Encode UTF-8 text into Base64 or decode Base64 back into readable text. Input stays in your browser.
When Base64 helps
Base64 is used in configuration values, API examples, tokens, data URLs, and transport formats that need text-safe binary-like data.
Base64 encoding guide
Base64 Encoder Decoder converts text to and from Base64 for configuration values, API examples, data transport, and debugging. It is a text-safe representation, not a security feature.
Create text-safe data
Encode short values when a system expects Base64 input.
Debug integrations
Compare original text and encoded output while testing APIs or setup guides.
Case study: checking a support token sample
A developer sees a Base64-looking value in a webhook log. They decode a copy, confirm it contains a non-secret sample payload, redact the account ID, and note that the value is encoded rather than encrypted.
- Work on a copy of the value from the log.
- Redact decoded private fields before sharing.
- Do not rely on Base64 for confidentiality.
Recommended workflow
- Paste the text or Base64 string into the input area.
- Choose encode for plain text that needs Base64 output.
- Choose decode for Base64 that should become readable text.
- Verify character encoding when working with non-English text or binary-like data.
Quality checks before using the result
- Confirm the decoded output is expected text before sharing it; Base64 can represent any bytes, not only readable strings.
- Treat decoded values as sensitive until you know they do not contain tokens, IDs, or private URLs.
- Keep padding and input encoding intact when comparing values across systems.
Questions about this tool
Is Base64 secure?
No. It is reversible encoding and should not be used to protect secrets.
Why does decoding fail?
The input may contain invalid characters, missing padding, or data that is not valid text after decoding.
Can I encode passwords?
Do not treat Base64 as password protection. Use proper secret storage instead.