Base64 & URL Encoder / Decoder
Encode and decode plain text or binary files into Base64 and URL-encoded query strings.
About Base64 & URL Encoder / Decoder
Encode plain text and data strings into Base64 ASCII or URL percent-encoded format (`%20`), or decode encoded strings back to UTF-8 human text.
How to Use Base64 & URL Encoder / Decoder
Enter your text into the input field.
Click "Base64 Encode" or "URL Encode" (or their respective Decoders).
Copy the converted result.
Supported Formats & Limits
- Supported Inputs: TEXT
- Guest Maximum Size: 25 MB
- Logged-in Max Size: 100 MB
- System Compatibility: Windows, macOS, Linux, iOS & Android
Privacy & Security Guarantee
This tool processes your files entirely inside your web browser using client-side JavaScript, WebAssembly, and Canvas APIs. Your document is never uploaded to any external server, guaranteeing total confidentiality.
Frequently Asked Questions
Does it support Unicode and emoji characters in Base64?
Yes, UTF-8 byte encoding is applied so multi-byte Unicode and emoji decode without corruption.