Hashtag Symbol
Pick a style — click to use & copy
Shortcodes
Quick reference codes for the # Hashtag Symbol.
| Unicode | U+0023 |
| Alt Code | 35 |
| HTML Code | # |
| CSS Code | \0023 |
| HTML Entity | # |
| HEX Code | # |
About the Hashtag Symbol
The hashtag symbol (#), formally called the number sign, hash, or pound sign (U+0023), has become one of the most recognised symbols of the social media era. Originally used in computing, telephony (telephone keypads), and music notation (sharp), it was popularised as a hashtag by Twitter in 2007 as a way to group and search topics — for example, #breakingnews or #coding. Today it is used across every major social platform. Its older names include the octothorpe (used in telephony) and the pound sign (in the US, for weight in lbs). In programming it marks comments in Python, Bash, and Ruby, and begins colour hex codes in CSS. You can type it with Shift+3 on most keyboards, or use # / # in HTML.
Customize Your Symbol
The hashtag symbol # is one of the most widely used symbols in social media, programming, telephones, music notation, and digital communication. It is commonly used to organize content on platforms like Instagram, TikTok, X, Facebook, and YouTube. Many people search for hashtag symbol copy methods, keyboard shortcuts, aesthetic hashtag text, Mac typing methods, and the official name of the hashtag symbol.
This complete guide explains everything about the hashtag symbol, including its meaning, history, keyboard usage, social media applications, aesthetic styles, and technical uses.
What Is the Hashtag Symbol?
The hashtag symbol is represented by # and is commonly used before keywords or phrases online.
Basic Example
| Example | Meaning |
|---|---|
| #Travel | Travel-related posts |
| #Gaming | Gaming content |
| #Photography | Photography category |
Hashtags help organize and discover content on social media platforms.
Hashtag Symbol Is Called
The hashtag symbol has several names depending on context.
| Symbol | Common Names |
|---|---|
| # | Hashtag |
| # | Pound Sign |
| # | Number Sign |
| # | Hash Symbol |
| # | Octothorpe |
The term “hashtag” became popular because of social media.
Hashtag Symbol Meaning
The hashtag symbol mainly represents categorization and search grouping online.
Common Meanings
| Context | Meaning |
|---|---|
| Social Media | Topic categorization |
| Programming | Commands and syntax |
| Telephones | Number input |
| Music | Sharp note |
| Mathematics | Number sign |
The meaning changes depending on where it is used.
Hashtag Symbol Copy Usage
The hashtag symbol is frequently copied into social media posts and digital content.
Common Usage Areas
| Platform | Usage |
|---|---|
| Post discovery | |
| TikTok | Trending topics |
| YouTube | Video categories |
| Twitter/X | Topic tracking |
| Professional hashtags |
Copy-paste is one of the fastest ways to insert hashtags.
Hashtag Symbol Keyboard Location
The hashtag key is available on most keyboards.
Windows Keyboard Shortcut
| Key Combination | Result |
|---|---|
| Shift + 3 | # |
Mac Keyboard Shortcut
| Key Combination | Result |
|---|---|
| Shift + 3 | # |
The symbol is usually located above the number 3 key.
Hashtag Symbol Shortcut Methods
Different devices may use different methods for typing hashtags.
Common Typing Methods
| Device | Shortcut |
|---|---|
| Windows | Shift + 3 |
| Mac | Shift + 3 |
| Android | Symbols keyboard |
| iPhone | Number/symbol keyboard |
These shortcuts work in most applications and browsers.
Hashtag Symbol on Mac
Mac users can easily type the hashtag symbol.
Mac Typing Method
| Action | Result |
|---|---|
| Shift + 3 | # |
This works in:
- Safari
- Notes
- Word
- Pages
The hashtag is commonly used on Mac devices for coding and social media.
Hashtag Symbol Text Usage
Hashtag symbols are heavily used in text formatting and online communication.
Common Text Examples
| Example | Usage |
|---|---|
| #Fitness | Fitness content |
| #FoodBlog | Food blogging |
| #Coding | Programming discussions |
Hashtags improve content discoverability and engagement online.
Hashtag Symbol Instagram Usage
Instagram made hashtags extremely popular worldwide.
Instagram Hashtag Uses
| Purpose | Benefit |
|---|---|
| Reach More Users | Better visibility |
| Categorize Posts | Easier discovery |
| Join Trends | Trending participation |
| Brand Promotion | Marketing campaigns |
Popular Instagram Categories
| Category | Example |
|---|---|
| Travel | #Travel |
| Fashion | #Style |
| Gaming | #Gaming |
| Photography | #PhotoOfTheDay |
Hashtags are a major part of Instagram growth strategies.
Hashtag Symbol Aesthetic Styles
Aesthetic hashtag designs are popular in modern social media culture.
Common Aesthetic Uses
| Platform | Usage |
|---|---|
| Instagram Bios | Stylish formatting |
| TikTok Captions | Cute decorations |
| Pinterest Graphics | Minimal design |
| Tumblr Posts | Artistic layouts |
Decorative hashtag layouts are often combined with stars and symbols.
Hashtag Symbol Cute Usage
Cute hashtag styles are especially common among aesthetic social media communities.
Popular Cute Themes
| Theme | Usage |
|---|---|
| Pastel Designs | Soft aesthetic |
| Kawaii Text | Anime communities |
| Minimal Layouts | Stylish bios |
| Decorative Captions | Social posts |
Cute hashtags are widely used in fashion and lifestyle content.
Hashtag Symbol in Programming
Programming languages also use the hashtag symbol.
Common Coding Uses
| Language/System | Usage |
|---|---|
| Python | Comments |
| HTML/CSS | ID selectors |
| C# | Language name |
| Linux | Shell scripts |
Example in Python
# This is a comment
The hashtag symbol is essential in many coding environments.
Hashtag Symbol in Music
Music notation uses the hashtag-like sharp symbol.
Musical Sharp Usage
| Symbol | Meaning |
|---|---|
| ♯ | Sharp note |
This symbol is different from the standard hashtag but looks similar.
Hashtag Symbol History
The hashtag existed long before social media.
Historical Uses
| Time Period | Usage |
|---|---|
| Telephones | Pound key |
| Programming | Technical notation |
| Music | Sharp notes |
| Social Media Era | Content categorization |
Twitter helped popularize hashtags globally.
Hashtag Symbol Unicode and HTML Code
Unicode ensures proper display across devices.
| Symbol | Unicode | HTML Code |
|---|---|---|
| # | U+0023 | # |
HTML Example
#
This is commonly used in website development.
Common Mistakes to Avoid
| Mistake | Correct Method |
|---|---|
| Using spaces in hashtags | Use single connected words |
| Overusing hashtags | Keep posts readable |
| Mixing unrelated hashtags | Match content properly |
| Confusing # with sharp symbol ♯ | Use correct notation |
Balanced hashtag usage improves readability and engagement.
FAQs About Hashtag Symbols
What is the hashtag symbol called?
It is commonly called the hashtag, pound sign, number sign, or hash symbol.
How do I type the hashtag symbol on a keyboard?
Press:
Shift + 3
What is the hashtag symbol used for?
It organizes and categorizes content on social media and digital platforms.
How do I type the hashtag symbol on Mac?
Use:
Shift + 3
They improve discoverability, reach, and content organization.
Is the hashtag symbol used in programming?
Yes. Many programming languages use # for comments, IDs, and commands.
Conclusion
The hashtag symbol # is one of the most influential symbols in modern digital communication, social media, programming, and online culture. Whether you need hashtag symbols for Instagram, keyboard shortcuts, aesthetic text, coding, Mac typing, or social media marketing, understanding their usage helps improve communication and online visibility.
From trending TikTok topics and Instagram campaigns to programming syntax and digital branding, the hashtag symbol continues to play a major role in modern internet culture.