---
title: "Bold Square Icon | Free Download PNG & SVG | Iconoir Regular"
product: "Streamline Icons, Illustrations and Elements"
url: /icons/download/bold-square--29591
canonical_url: "https://www.streamlinehq.com/icons/download/bold-square--29591"
summary: "Clean line icon of a bold letter B inside a rounded square. Used for bold text controls, typography, and formatting menus."
---

# Bold Square icon

The Bold Square icon shows a bold letter B enclosed within a rounded square outline. Drawn in the line style on a 16px grid with a 1px stroke so it stays clear in compact interfaces. Use it for bold text controls, typography tools, formatting menus, and text editors. It belongs to Iconoir Regular free set in the Iconoir family.

## Preview

![Clean line icon of a bold letter B inside a rounded square. Used for bold text controls, typography, and formatting menus.](https://assets.streamlinehq.com/image/private/w_300,h_300,ar_1/f_auto/v1/icons/1/bold-square-o7thre8nz7i9bsrvz7upb.png/bold-square-thgz8e27tlqrydqq1etoha.png?_a=DATAiZkSZAA0)

## Details

- **Name**: Bold Square
- **Type**: Icon
- **Set**: [Iconoir Regular](/icons/iconoir-regular.md) — Iconoir is a free and open source icon set created by Luca Burgio with clean, consistent design.
- **Family**: [Iconoir](/icons/iconoir.md)
- **Style**: Line, Stroke
- **Category**: All Icons › All Icons
- **Default size**: 16px
- **Stroke width**: 1px
- **Pricing**: Free
- **License**: [MIT](https://github.com/iconoir-icons/iconoir/blob/main/LICENSE)
- **Author**: [Iconoir](https://iconoir.com/)
- **Formats**: PNG, WEBP, PDF, SVG, JSX
- **Tags**: bold, square, letter, B, uppercase, typography, design, alphabet, symbol, text, monogram, signage

## Download

- [Download Bold Square on Streamline](https://www.streamlinehq.com/icons/download/bold-square--29591)

## Also available in other styles

- [Bold Square — Iconoir Solid](/icons/download/bold-square--29590.md) (Free)

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