Instagram has grown from a simple photo-sharing app into one of the largest visual platforms on the internet, with close to two billion people using it every month. Whether you’re setting up a personal account for the first time or figuring out how to run a business profile, the basics are approachable once you know where to look. This guide walks through what Instagram is, how it works, and how to get comfortable using its core features.
What is Instagram?
Instagram is a social media platform centered on sharing photos and videos through its mobile app. Users can post, edit, and share visual content, and anyone with a public account can be seen by followers and non-followers alike. People interact with posts through likes, comments, shares, and saves. The platform is owned by Meta, which also operates a robust advertising system, and it counts well over a billion active users worldwide.
In its early years, Instagram was almost purely about photos, the kind of app people used to capture a moment and share it instantly. Over time it has evolved into something much broader, with a heavier emphasis on short-form video and interactive features like polls and question stickers layered on top of the original photo-sharing core.
For everyday users, Instagram offers a window into friends’ lives, favorite creators, and public figures. For brands, it’s become one of the most effective channels for building a direct relationship with an audience, whether that’s teasing a new product, sharing behind-the-scenes content, or simply staying visible in a highly engaged space.
How does Instagram work?
At its core, the concept is simple. People create accounts, public or private, and follow other accounts whose content interests them. In return, they post their own photos and videos for others to follow and engage with. Accounts can represent individuals, but they can just as easily represent an organization, a business, or a brand.
Common questions about Instagram
Do you need an account to browse Instagram? You can view a limited amount of content without logging in, but you’ll be prompted to sign in fairly quickly, whether you’re on a browser or the mobile app.
Is Instagram free to use? Yes. Creating an account and posting content costs nothing beyond an email address. Certain extras, like verification badges or running ads, do come with a cost.
Can you use Instagram on a desktop computer? Originally a mobile-only app, Instagram now has a fully functional website accessible from any browser. You can view, create, and edit content, and engage through likes, comments, and messages, all from a desktop. A handful of features, like interacting with Story stickers, remain mobile-only.
What devices does Instagram support? The app runs on iOS, Android, and Windows devices, in addition to any standard web browser.
What’s an Instagram handle? Your handle is your username. For a business, it should match your brand name as closely as possible so customers can find you easily.
What’s an influencer? An influencer is someone with an established, engaged audience who can shape the opinions or purchasing decisions of the people who follow them, much the way a trusted friend’s recommendation carries weight. The larger and more engaged that audience, the more valuable a partnership with that person can be for a marketing campaign. The term overlaps heavily with “content creator” in everyday use.
What’s a Reel? A Reel is Instagram’s short-form video format, typically somewhere between 15 and 90 seconds long.
What’s a Story? A Story is a photo or short video that’s visible for 24 hours before disappearing, unless it’s saved permanently to a profile as a “Highlight.” Viewing someone’s Story requires having an Instagram account yourself.
What is Instagram actually for?
For everyday users, Instagram tends to serve a few overlapping purposes: staying loosely connected with friends and family, following accounts that match personal interests (recipes, fashion, travel, humor), and increasingly, catching up on news and real-time events as they unfold.
For brands, the purpose is more deliberate: reaching a large, highly engaged audience and using that reach to build a recognizable brand identity. That can mean anything from announcing a new product to driving traffic toward a specific offer through targeted content and ads. The brands that do this well tend to avoid treating their account as a one-way broadcast channel. Instead, they focus on building an actual community around the brand, using relatable, entertaining content that gives people a reason to engage rather than scroll past.
How to create an Instagram account
Signing up takes just a few minutes, whether you’re using the app or the Instagram website.
- Download the Instagram app from the App Store or Google Play, or go to Instagram.com on desktop.
- Choose to sign up with Facebook, or fill in your email or phone number, name, username, and password.
- On mobile, tap “Sign Up” (iPhone) or “Sign Up With Email or Phone Number” (Android).
- Enter your email or phone number and tap “Next,” or continue with Facebook.
- Fill in your basic profile information, then tap “Done.”
- If you signed up through Facebook, you may need to log into that account first if you weren’t already logged in.
How to optimize your Instagram profile
Once your account exists, resist the urge to skip profile setup. Your profile is often the very first impression someone forms of you or your brand, so it’s worth getting right before you start posting regularly.
Add or edit your profile picture
- Tap your profile picture to go to your profile.
- Tap “Edit Profile,” then “Change profile photo.”
- Upload a photo from your device.
For individuals, a clear, high-quality photo of your face tends to work best. For businesses, a simple, recognizable logo is the standard choice. Either way, the goal is the same: something people can instantly recognize even outside the context of your full profile.
Write your bio
- From your profile, tap “Edit Profile,” then the bio text box.
- Write your bio and tap “Submit” to save.
Instagram gives you just 150 characters here, so use them efficiently. A strong bio usually answers two questions at once: who you are or what you do, and why someone should follow you, with enough personality that it doesn’t read like boilerplate.
Add a website link
- From “Edit Profile,” tap “Links,” then “Add external link.”
- Enter your URL and tap “Done.”
- Tap “Done” again to save your profile changes.
You can add up to five links directly to your profile. Many businesses use a link-aggregator tool to point to multiple destinations, like a website, a recent blog post, and a store, all from that single link slot.
Navigating the app
Every time you open Instagram, you land on a feed of content from accounts you follow. Along the bottom of the screen sits the main navigation bar:
- Home – returns you to your main feed
- Explore (magnifying glass) – lets you search accounts and hashtags, and surfaces content Instagram thinks you’ll like based on your activity
- New post (+) – lets you create a new post, Story, Reel, or go live
- Reels – takes you to the short-form video feed
- Profile – your own page, showing your posts, followers, and Reels
In the top corner, you’ll also find a notifications icon (shaped like a heart) and a messaging icon for direct messages.
Posting content: what to share
As an individual, using Instagram is mostly a matter of following accounts you find interesting and occasionally posting your own content in return. As a business, it takes more intention. You’re aiming to consistently post content your specific audience actually wants to see, which usually falls into a few broad categories:
- Educational content (how-tos, tips, tutorials)
- Entertaining, relatable content
- Interactive content, like Story polls or open questions
- Live video
There’s no single winning format. The accounts that do well tend to have a clear sense of who their audience is and what tone fits their brand, and they apply that consistently rather than chasing whatever trend is popular that week.
Managing notifications
Instagram’s notification settings are genuinely extensive, covering everything from likes and comments to birthday reminders and product announcements. Rather than accepting the defaults, it’s worth spending a few minutes adjusting them to match how much you actually want to be pinged.
To adjust notifications:
- Open the app and go to your profile.
- Tap the menu icon (three lines) in the top corner.
- Tap “Notifications.”
- Go through each category and set it to Off, From People I Follow, or From Everyone.
A reasonable starting point is to leave everything on “From Everyone” for a few days, then turn off whichever categories you find yourself ignoring or getting annoyed by. If you’re managing a business account and don’t want to sift through a constant stream of alerts, a social media management tool can consolidate notifications and mentions in one place.
How to post an image
Instagram etiquette differs somewhat from platforms like Facebook. Posting dozens of similar photos in one go tends to look cluttered on a profile grid; most users are more selective, picking a handful of the strongest images from an event or trip. When you do want to share several related photos at once, a carousel post lets you group multiple images or videos into a single post.
To post an image:
- Tap the “+” icon and select “Post.”
- Choose a photo from your library, or capture a new photo or video directly in the app.
- Apply a filter if you’d like (you can adjust filter intensity by double-tapping and dragging).
- Use the “Edit” tab to fine-tune contrast, brightness, warmth, and similar settings.
- Write a caption, tag relevant accounts, and add a location if relevant.
- Optionally toggle sharing to other connected platforms.
- Tap “Share” to publish.
How to post to your Story
Stories work differently from your main feed: content disappears after 24 hours unless it’s saved to a Highlight, which makes them a natural place for more casual, in-the-moment content compared to the more polished posts on your main grid.
To post a Story:
- Tap your profile picture, or swipe right on your feed, to open the Stories camera.
- Capture a new photo or video, or select one from your library.
- Use the editing tools on the left to add stickers, text, filters, or interactive elements like polls.
- Tap the share arrow to post to everyone who follows you, or select “Close Friends” to share with a smaller list.
How to follow people
Finding accounts to follow is straightforward. If you already know who you’re looking for, search their name or handle directly. If you’re looking for a type of content rather than a specific account, searching by hashtag can surface relevant posts and accounts you haven’t discovered yet.
- Tap the search (magnifying glass) icon.
- Type in a person, brand, or topic.
- Tap into an account that looks interesting, then tap “Follow.”
Public accounts can be followed immediately; private accounts require the account owner to approve your follow request first.
Connecting Instagram to other platforms
Instagram can be connected to Facebook and a handful of other social accounts, largely because Instagram and Facebook share the same parent company, Meta. Connecting accounts enables a few conveniences: sharing Stories across both platforms at once, syncing your profile name and photo, and accessing shopping features across both apps.
That said, connecting accounts for convenience doesn’t mean every post should be identical across platforms. Audiences behave differently on different apps, and content that performs well on Instagram doesn’t always translate directly. Many brands use cross-posting selectively, mainly to help their existing audience find them across platforms, rather than assuming one post fits every channel equally.
To connect Instagram and Facebook:
- Open Instagram and go to your profile.
- Tap the menu icon, then “Settings.”
- Under the Meta section, tap “Accounts Center.”
- Tap “Set up Accounts Center” and follow the prompts to log into Facebook.
Once connected, you can choose to share posts and Stories automatically, or continue posting to each platform individually if you’d rather keep the content distinct.
A few practical posting tips
Be intentional about timing. Engagement varies by audience, but consistently posting around the times your specific followers are most active tends to outperform posting at random hours. Track your own account’s engagement data rather than relying purely on generic benchmarks.
Use hashtags thoughtfully. A handful of hashtags that are genuinely relevant to your content and likely to be searched will do more for discoverability than a long, generic list.
Show your product or service without overdoing it. Content that clearly showcases what you offer tends to perform well, provided it’s woven into genuinely interesting posts rather than feeling like a straight advertisement.
Don’t underestimate static images. Video often gets more views, but a strong single image or carousel post can still outperform video in terms of shares and comments, and typically costs far less effort to produce.
Getting comfortable with Instagram
The easiest way to get the hang of Instagram is to spend some time simply observing before posting much yourself: notice what kind of content shows up in your feed, how accounts you admire structure their posts, and what tone feels authentic. From there, the mechanics of posting, following, and engaging become second nature fairly quickly. Given how large and active the platform remains, and how much of that growth shows no sign of slowing, learning to use it well is a genuinely worthwhile investment of time for individuals and brands alike.
