Number Padding Tool – Add Leading Zeros Online Free

Number Padding: Add leading zeros or custom characters to numbers for fixed-width formatting. Free, fast, and accessible online tool. No signup required. Mobile-friendly.

Input Section

Number(s): Supports single numbers, comma-separated lists, or ranges (e.g. 5, 10-15).

Padding Width: Total width after padding (e.g. 3 for 007).

Padding Character: Single character (e.g. 0, #, _)

Padding Direction: Pad at the start or end of the number.

Allow Negative Numbers:

Input Count:

Padded Count:

Padding Width:

Padding Character:

Direction:

Padded Result

Input Section

Output Section