URL & Base64 Encoder
DeveloperEncode and decode URLs, text strings, and binary files offline. 100% client-side security.
URL Input
URL Output
Output will appear here...
How to use the URL & Base64 Encoder
Follow these simple steps to process your files locally in seconds.
For URLs, choose the space conversion parameters and run encodeURIComponent algorithms natively.
For base64 text, strings are mapped onto byte arrays and translated using fast local btoa/atob libraries.
For files, our in-memory FileReader outputs static Data URL base64 blocks offline.
Decoded Base64 sequences are reconstructed into binary Blobs, generating safe local download targets.
All calculations run exclusively inside your browser. No files are ever sent to our servers.
Your data remains entirely yours. Ideal for processing sensitive business or personal files safely.
No account registration, no file size limitations, and no watermarks added to final results.
Frequently Asked Questions
Got questions about using the URL & Base64 Encoder? Find answers here.