BaseN Encoder - Free Online Tool | PivaBox

Custom base encoding with any alphabet — Base36, Base62, Base64url, or define your own

How to Use BaseN Encoder

1. Choose a preset alphabet (Base36, Base62, Base64url) or type your own custom alphabet
2. Enter the text you want to encode or decode in the input area
3. Click Encode to convert text to the selected base, or Decode to convert it back

Frequently Asked Questions

Is the BaseN Encoder free?

Yes, PivaBox BaseN Encoder is completely free to use with no charges or subscriptions.

Is my data sent to a server?

No. All encoding and decoding happens entirely in your browser. Your data never leaves your device.

What is custom base encoding?

Custom base encoding converts data using an arbitrary alphabet of N symbols. The base is determined by the length of the alphabet you provide. This is a generalization of familiar encodings like Base64 (alphabet of 64 characters) or hexadecimal (alphabet of 16 characters). You can define any alphabet — from simple binary (01) to large sets with hundreds of characters.