String Obfuscator

Obfuscate text with Base64, ROT13, and masking tools that run entirely in your browser.

Input

Choose a transformation, paste text, and copy or export the result. Your input stays in your browser.

Transformation

Output

The result updates automatically when the input is valid.


						
Ready to obfuscate text.

						
					

				

			


			

				
When to use String Obfuscator

				
Five practical ways this tool helps with quick, privacy-friendly text sharing:

				
    
					
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						Share safe placeholders
						
    Mask tokens, IDs, or reference strings before posting screenshots, docs, or chat messages.
    
					
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						Prepare data for transport
						
    Convert plain text to Base64 when you need a compact, reversible representation for debugging or demos.
    
					
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  • 
						Inspect encoded samples
						
    Decode Base64 snippets locally to verify payloads without switching tools.
    
					
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						Lightweight obfuscation
						
    Use ROT13 to hide spoilers, answers, or internal notes from casual scanning.
    
					
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						Work from mobile
						
    Paste text, transform it, and copy the result from your phone or tablet without installing anything.
    
					
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Frequently asked questions

				

					

						
How do I use this app?

						
Choose a transformation, enter or paste text, and review the live result. Use Copy or Download when you are ready to reuse it, or Clear to start over.

					

					

						
Is this app free to use?

						
Yes. String Obfuscator is free to use and does not require an account.

					

					

						
What happens to my input data?

						
Your text stays in your browser. The app does not send your input to a server or store it for later.

					

					

						
Why am I getting an error or unexpected output?

						
Most issues come from invalid Base64 input, pasted whitespace, or choosing the wrong transformation. Check the selected mode and try again with cleaned-up text.

					

					

						
Where can I find instructions and troubleshooting tips?

						
Open the in-app Help panel. It explains each transformation, common mistakes, and keyboard-friendly controls, including closing the panel with Escape.