Describe the bug

The token generator currently uses incomplete alphabet strings for both uppercase and lowercase characters.

'ABCDEFGHIJKLMOPQRSTUVWXYZ' // Missing "N"
'abcdefghijklmopqrstuvwxyz' // Missing "n"

As a result, generated tokens will never contain the letters N or n, which reduces entropy and creates a biased distribution of characters.

Impact

• Lower security due to reduced randomness.

• Non-uniform token generation.

• Unexpected behavior when systems rely on full alphabet coverage.

Expected Behavior

• The generator should use the full alphabets:

'ABCDEFGHIJKLMNOPQRSTUVWXYZ'

'abcdefghijklmnopqrstuvwxyz'

Steps to Reproduce

1. Generate multiple tokens using the current implementation.

2. Observe that "N" and "n" never appear.

Suggested Fix

• Replace the incorrect alphabet strings with full alphabets.

Environment

• Token generator service

• File: token-generator.service.ts

What happened?

A bug happened

System information

Test in browser : https://it-tools.tech/token-generator

Where did you encounter the bug?

Public app (it-tools.tech)