Social Media Username and Hashtag Format: Why Spaces Are Not Allowed

Have you ever tried to use a social media username or hashtag that contains a space, only to learn later that it doesn’t display or function properly? This is part of an overall set of social media formatting rules that you need to follow in order to optimize your social content correctly.

The following guide contains all of the information you need to know in terms of proper social media hashtag and username display, including what is and isn’t allowed, why certain conventions were implemented, and how to implement them correctly yourself.

Why Can’t I Put Spaces In My Hashtags or Usernames?

Any social media hashtag or username is ultimately parsed as a single token by the platform’s API. This means that any space in a username or hashtag will be read as the end of the token. For hashtags, if you use a space, the search term will stop at the space, meaning that any words after it will not be parsed as a hashtag.

If you use a space in a username, your account name will become invalid.

For example, if you were to search for a hashtag like #Social Media Tips, the only portion parsed as a hashtag would be Social. This is because any space will end the hashtag.

Usernames follow a slightly different convention, mainly because your username has to be part of the web address for your account (@yourname). Since spaces aren’t allowed in web addresses, they can’t be used in social media usernames.

What’s the Difference Between a Social Media Username and Hashtag?

Social media usernames, also known as handles, are the unique identifier for a user, group, or page on a social media platform. They generally take the form of @yourname.

Hashtags, on the other hand, are generally used to categorize a post. If done right, hashtags can be used to dramatically increase the discoverability of your social posts, and they can also serve as a metric to analyze the impact of your content. Hashtags are generally placed at the beginning of a hashtag phrase, and take the form of #YourHashtag.

One easy way to differentiate between a social media hashtag and a username is to remember that the former tells people what a post is about, whereas the latter tells people who a post is from.

Proper Formatting Conventions

As previously mentioned, spaces can’t be used in hashtags or usernames. However, there are a number of conventions that content creators use to make long phrases easier to read:

CamelCase/TitleCase: The first letter of each word is capitalized, which helps keep hashtags readable. This is the most common approach, and is recommended for accessibility reasons, as it assists users of screen readers. CamelCase is generally preferred over the other two conventions for usernames and hashtags, with the exception of a few cases.

Underscores: Similar to CamelCase, underscores can be used to replace spaces. Some platforms, usernames allow underscores, but they aren’t generally recommended for hashtags. Your username could also be formatted like this: your_brand_name

All lowercase, run together: Some companies prefer the all-lowercase approach. However, this is generally discouraged, as it’s less readable. An example of this would be #smallbusinesstips

Don’t mix underscores, CamelCase, and lowercase within one hashtag or username, as it can appear unprofessional. Avoid using special characters like hyphens or emojis in hashtags and usernames, as they can cause issues for other users attempting to parse them.

Other Important Social Media Formatting Rules to Know

Each social media platform has its own hashtag and username rules.

In general:

Instagram: Up to 30 hashtags per post. Hashtags on Instagram are generally less important than on other platforms, but it’s still a good idea to use 3-5 relevant hashtags per post.
X (Twitter): Included in the 280-character limit per tweet. Hashtags on Twitter are generally more important than on other platforms, but it’s still a good idea to use 3-5 relevant hashtags per tweet.
TikTok: 3-5 hashtags recommended per post. Long tail hashtags are generally discouraged on TikTok, due to the sheer amount of hashtags used on the platform.
LinkedIn: 3-5 hashtags recommended per post, with a heavy emphasis on professional content. Hashtags on LinkedIn are less important than on other platforms, but still have an impact on discoverability.
Facebook: Hashtags aren’t generally an important part of Facebook posts, though they still have a minor impact on discoverability.

Most platforms allow letters, numbers, underscores, and periods in usernames, but each has slightly different rules. Always check the rules for each social media account before setting them up.

Why Proper Social Media Formatting Matters

As mentioned above, incorrect social media formatting can drastically reduce the discoverability of your content, as hashtags are essential for searchability. Additionally, an improperly formatted username can hurt the discoverability of your social media profiles, especially if multiple platforms are used.

For businesses, it’s important to remember that a hashtag used incorrectly will fail to serve its primary purpose: drawing attention to your brand. This means that any effort spent on the rest of the social post will be wasted on a hashtag that nobody can search for. Additionally, improper hashtag formatting across different social media accounts can lead to issues, such as hashtags that appear to be misspelled or hashtags on one platform not matching up with hashtags on another.

For businesses and content creators who use multiple social media platforms, hashtag formatting consistency across platforms is important, as it ensures that a branded hashtag is used consistently, increasing brand recognition across platforms. Additionally, proper social media formatting will assist with analytics tracking, since an improperly formatted hashtag in a single social media post can cause issues with analytics tracking on other platforms, making it difficult to analyze the impact of a social media campaign.

Common Social Media Formatting Mistakes and How to Avoid Them

You can’t use hashtags like this: #Weekend#Fun#Family. Since a space ends the hashtag, this will either show up as a single hashtag (#Weekend#Fun#Family) or not be parsed as a hashtag at all.

Avoid using hashtags with too many words in them. Use as few words as possible in a single hashtag, to make it more scannable. Additionally, avoid using hashtags with too many characters, as they are generally ignored by social media algorithms. Since spaces aren’t allowed, you can’t put multiple words together, which further emphasizes the importance of not having hashtags with too many words.

Avoiding consistency problems is also a good idea, since they can hurt branding and cause confusion. If your username is @YourBrand on one platform, but @YourBrand_Official on another, it will make it harder for your audience to find you across platforms. If possible, try and keep your social media handle consistent across platforms, and follow general hashtag rules when implementing hashtags on different platforms.

If you’re using CamelCase, make sure you keep the first letter of every word capitalized. Failure to do so could result in hashtags that appear unprofessional. Additionally, all-lowercase hashtags like #smallbusinesstips should be avoided, as they are less readable and accessible.

A Quick Summary of Everything You Need to Know

To keep your social media accounts displaying properly and maximizing discoverability:

Don’t use any spaces within a single hashtag or username. Always use CamelCase to keep hashtags scannable and readable, especially for screen readers. Avoid using a different username on different platforms. Always use appropriate hashtags in accordance with the rules of each social media platform. Make sure to double-check the spelling of your hashtags, since a typo can result in an entirely different, unsearchable hashtag.

Final Thoughts

The social media platform rules previously mentioned are hard and fast rules, which are rarely bent or broken, except in very specific circumstances. Once you understand why there are rules against spaces in hashtags, it’s much easier to keep hashtags readable, usernames properly formatted, and content discoverable.

Use CamelCase to keep hashtags readable, maintain a consistent social media handle across platforms, and keep hashtags concise and relevant to the topic of your social media post.