String Decoder
Decode strings through one or more Base64, URL, UTF-8 hexadecimal, or ROT13 steps. Choose the settings that match your task, then run the tool again whenever you need a fresh result.
Decode strings through one or more Base64, URL, UTF-8 hexadecimal, or ROT13 steps
Key capabilities
Decode Base64 and URL-encoded text
Decode strings through one or more Base64, URL, UTF-8 hexadecimal, or ROT13 steps
Convert UTF-8 hexadecimal back to readable text
Selected decoding steps run locally in their displayed order. Each step receives the output of the preceding step and validates malformed Base64, URL, or hexadecimal input.
Apply several known decoding steps in sequence
Decoding does not decrypt protected data and cannot recover information from one-way hashes. Only use transformations that match how the source string was encoded.
Randomness and data
Selected decoding steps run locally in their displayed order. Each step receives the output of the preceding step and validates malformed Base64, URL, or hexadecimal input.
Privacy
All tool data, including lists, settings, and recent results, is stored locally in this browser and is not uploaded to the cloud. Features that use an external service are identified separately.
Generator limits
Decoding does not decrypt protected data and cannot recover information from one-way hashes. Only use transformations that match how the source string was encoded.
Frequently asked questions
How do I use String Decoder?
Decode strings through one or more Base64, URL, UTF-8 hexadecimal, or ROT13 steps
How is the result selected?
Selected decoding steps run locally in their displayed order. Each step receives the output of the preceding step and validates malformed Base64, URL, or hexadecimal input.
What should I check before using the result?
Decoding does not decrypt protected data and cannot recover information from one-way hashes. Only use transformations that match how the source string was encoded.
Are results stored?
All tool data, including lists, settings, and recent results, is stored locally in this browser and is not uploaded to the cloud. Features that use an external service are identified separately.