Base64 Decode
Decode Base64 encoded strings back to readable text.
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What is Base64 Decode?
The Free Base64 Decoder decodes Base64-encoded strings back to readable text. Useful for decoding data URIs, API responses, and configuration values. Handles UTF-8 encoded text correctly. Useful for decoding API tokens, JWT payloads, data URIs, and embedded image strings. Auto-detects format and shows clear error messages for invalid input. Free, fast, and processes everything client-side for privacy.
How to Use Base64 Decode
- [1]Paste your Base64-encoded string
- [2]Click Decode
- [3]View the decoded text
- [4]Copy the result for use in your code or analysis
Common Use Cases
- ▸Developers decoding API tokens and payloads
- ▸Web developers reading data URIs from HTML
- ▸Security researchers analyzing encoded strings
- ▸QA engineers validating encoded test data
- ▸Anyone needing to convert Base64 back to readable text