Flex free icons
streamline-flex · 1,500 icons · by Streamline · CC-BY-4.0 · single-color · 28px grid · Updated
Flex free icons is a free, open source icon set with 1,500 SVG icons by Streamline, released under the CC BY 4.0 license. The icons are single-color: they follow your text color (currentColor) and can be recolored with CSS. They are designed on a 28px grid and scale cleanly as SVG.
Flex free icons design specs
- outline and filled
- monochrome
- rounded
The drawing rules of this set, measured from its SVG files. Use them to design new icons that match it.
| Canvas | 14 × 14 |
|---|---|
| viewBox | 0 0 14 14 |
| Drawing area | Full canvas, no padding |
| Drawing style | Mixed outline and fill |
| Stroke width | 1 |
| Line ends | Round |
| Line joins | Round |
| Corner radius | 0.75 |
| Colors | One color (currentColor), recolorable with CSS |
| Coordinates | Up to 3 decimals |
| Straight lines | 60% horizontal or vertical, 7% at 45° |
| Curves | 76% of drawing commands |
| Symmetry | 42% of icons are left-right symmetric |
| Elements per icon | 1.3 |
| Drawing commands per icon | 34 |
Measured from 64 icons of this set.
AI icon generation
The license allows new icons derived from this set.
- Credit the original authors.
Credit line: Based on Flex free icons by Streamline, licensed under CC BY 4.0. https://creativecommons.org/licenses/by/4.0/
Style guide for an LLM prompt (English)
Paste it into a prompt with a few icons from this set, then name the icon you want.
You draw new icons for the "Flex free icons" icon set (Iconify prefix "streamline-flex") by Streamline.
Style: mixed outline and fill, monochrome, rounded.
Canvas
- Root: <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 14 14">.
- Draw edge to edge: icons use the full canvas with no padding.
- A typical icon's bounding box covers 92% of the canvas.
Drawing
- Icons mix strokes and filled shapes (fill 66%, stroke 34%).
- stroke-width="1".
- stroke-linecap="round", stroke-linejoin="round".
- Use fill-rule="evenodd" for holes.
- Round corners with a radius of about 0.75.
Geometry
- Coordinates are free-form; write at most 3 decimals.
- Straight lines: 60% horizontal or vertical, 7% at 45 degrees.
- About 76% of drawing commands are curves or arcs.
- Prefer left-right symmetric shapes (42% of icons are symmetric).
- Keep it simple: about 1 element and 34 drawing commands per icon.
- Elements used by the set: path, g.
Color
- Monochrome: paint with currentColor only, never a fixed color.
Output
- Reply with one complete <svg> element and nothing else: no comments, <title>, ids or scripts.
- Match the examples: reuse their shapes for shared parts (arrow heads, people, documents, badges).
About Flex free icons
The set is organised into 16 categories, including interfaceessential (591), computerdevices (147), moneyshopping (141) and maptravel (135).
Popular Flex free icons include shield 2, number sign, heart, merge vertical, thermometer solid and music equalizer.
Open any icon to copy it as SVG, JSX, Vue, Svelte, Solid, Astro or CSS, or download it as SVG or PNG. Flex free icons are released under the CC BY 4.0 license, which allows use in personal and commercial projects as long as you credit the author.
Flex free icons by category
InterfaceEssential icons (591)
ComputerDevices icons (147)
MoneyShopping icons (141)
MapTravel icons (135)
Entertainment icons (81)
Programming icons (60)
Health icons (54)
ImagesPhotography icons (51)
Phone icons (48)
NatureEcology icons (45)
Mail icons (42)
FoodDrink icons (39)
How to use Flex free icons
Every icon on this page works in any framework. Examples use streamline-flex:shield-2; open an icon to copy its exact SVG, JSX, Vue, Svelte, Solid, Astro or CSS code. For sizing, color and accessibility tips, read how to use SVG icons.
React
import { Icon } from "@iconify/react";
<Icon icon="streamline-flex:shield-2" width="24" />Vue
<script setup>
import { Icon } from "@iconify/vue";
</script>
<template>
<Icon icon="streamline-flex:shield-2" width="24" />
</template>Svelte
<script>
import Icon from "@iconify/svelte";
</script>
<Icon icon="streamline-flex:shield-2" width="24" />Tailwind CSS
<!-- @iconify/tailwind plugin -->
<span class="icon-[streamline-flex--shield-2]"></span>UnoCSS
<!-- @unocss/preset-icons + @iconify-json/streamline-flex -->
<div class="i-streamline-flex:shield-2"></div>Web component
<script src="https://code.iconify.design/iconify-icon/2.1.0/iconify-icon.min.js"></script>
<iconify-icon icon="streamline-flex:shield-2"></iconify-icon>HTML image
<img src="https://iconyz.com/api/public/svg/streamline-flex/shield-2.svg" alt="Shield 2 icon" width="24" height="24">Flex free icons FAQ
Are Flex free icons free for commercial use?
Yes. Flex free icons are released under the CC BY 4.0 license, which allows use in personal and commercial projects as long as you credit the author.
How many icons are in Flex free icons?
Flex free icons contains 1,500 icons across 16 categories.
What license do Flex free icons use?
Flex free icons are licensed under CC BY 4.0. The full license text is available at https://creativecommons.org/licenses/by/4.0/.
Who made Flex free icons?
Flex free icons are created by Streamline.
How do I use Flex free icons in React?
Install @iconify/react and render <Icon icon="streamline-flex:shield-2" />, or open any icon on this page and copy it as a standalone React component.
What size are Flex free icons?
Flex free icons are designed on a 28px grid. As SVGs they scale to any size without losing quality.