You can post to Instagram from a computer using the web version or third-party scheduling tools
Instagram's web version on a computer lets you upload photos and videos directly to your feed, but with one important limit: you can only post square or portrait images, not landscape ones. If you need more control—like scheduling posts in advance or posting landscape photos—you'll need a third-party tool. The native web version is free and works in any browser; third-party tools range from free to paid subscriptions.
The fastest route is Instagram's web version at instagram.com. Log in with your account, click the plus-sign icon in the left menu, select your image or video file from your computer, add a caption and location, and publish. The whole process takes under a minute if you already know what you want to post.
Key Takeaways
- Instagram's web version at instagram.com lets you post photos and videos directly from your computer without downloading anything extra.
- The web version only accepts square or portrait-shaped images; landscape photos will be cropped or rejected.
- Third-party tools like Buffer, Later, or Hootsuite let you schedule posts in advance and post landscape images, but they cost money or have limited free versions.
- You must use your phone to post Stories, Reels, or carousel posts (multiple images) from a computer—the web version does not support these formats.
- Always log out of shared computers after posting, since Instagram stores your login in the browser.
How to post a single photo or video using Instagram's web version
Open a web browser on your computer and go to instagram.com. Log in with your username and password if you are not already signed in. In the left sidebar menu, look for the plus-sign icon (it looks like a square with a plus in the center) and click it. A window will open asking you to select a file from your computer.
Click "Select from computer" and navigate to the folder where your photo or video is saved. Select the file and click "Open." Instagram will upload the image and show you a preview. If the image is landscape (wider than it is tall), Instagram will either crop it to fit or show you a warning—you can adjust the crop by dragging the image in the preview box, or you can cancel and resize the image on your computer first.
Once the image looks right, click "Next." Instagram will show you editing options: you can explore filters, adjust brightness and contrast, or add other effects. These are optional. Click "Next" again to move to the caption screen. Type your caption, add location tags if you want, and then click "Share" to publish the post to your feed.
Why landscape photos don't work on Instagram's web version
Instagram's feed is designed for square or portrait images—the same shape as a phone screen held upright. When you try to upload a landscape photo (wider than it is tall) from your computer, Instagram's web version will crop it automatically to fit the square or portrait frame. This means parts of your image will be cut off on the sides.
If you want to post a landscape photo without losing any part of it, you have two options. The first is to resize the image on your computer before uploading: add white or colored bars to the top and bottom so the image becomes taller and narrower, making it portrait-shaped. The second is to use a third-party scheduling tool that supports landscape uploads, though these tools cost money.
Using third-party tools to schedule posts and post landscape images
Third-party scheduling tools connect to your Instagram account and let you upload posts in advance, then publish them automatically at a time you choose. They also usually support landscape images without cropping. Common tools include Buffer, Later, Hootsuite, and Meta Business Suite (which is free and made by Instagram's parent company).
Meta Business Suite is the simplest option if you only need scheduling. Go to business.facebook.com, log in with your Instagram account, and click "Instagram" in the left menu. Click "Create" and then "Post." Upload your image, write your caption, and choose the date and time you want it to publish. Click "Schedule" and the post will go live automatically at that time. Meta Business Suite is free and works with landscape images.
Buffer and Later are paid tools with free trial periods. Both let you upload multiple posts at once, schedule them weeks in advance, and see analytics about how your posts perform. If you post frequently or manage multiple Instagram accounts, these tools save time, but they cost between $5 and $35 per month depending on features.
What you cannot post from a computer
Instagram's web version does not support Stories, Reels, or carousel posts (multiple images in one post). If you want to post any of these formats, you must use the Instagram app on your phone. There is no workaround for this—Instagram deliberately limits these features to the mobile app.
Some third-party tools claim to support Reels or Stories from a computer, but most of these are either unreliable or violate Instagram's terms of service. Your safest option is to create Stories and Reels on your phone using the Instagram app, even if you prefer to post regular feed photos from your computer.
Security and privacy when posting from a shared computer
If you are posting from a computer that other people use—at work, at a library, or at a friend's house—always log out of Instagram when you are done. Click your profile picture in the top right corner, scroll down, and click "Log out." This prevents the next person who uses the computer from accessing your account and posting as you.
Do not check the "Remember password" or "Keep me logged in" box when you log in on a shared computer. Even if you log out, some browsers store login information, and someone could use it to access your account later. On your personal computer at home, these options are safe to use.
Troubleshooting common posting problems
If Instagram says your image is too large, the file is probably over 8 MB. Most photos from a phone or camera are smaller than this, but high-resolution images from a professional camera might be larger. Resize the image on your computer using free tools like Pixlr or Canva before uploading.
If the upload fails or gets stuck, try refreshing the page and uploading again. If that does not work, try a different web browser—sometimes Instagram's web version works better in Chrome than in Firefox or Safari. If you are using an older version of your browser, update it first.
If Instagram crops your image in an unexpected way, the image might be in a format Instagram does not recognize well. Save it as a JPG or PNG file instead of a TIFF or BMP, and try uploading again. JPG and PNG are the most reliable formats for Instagram.
Frequently Asked Questions
Can I post a video from my computer to Instagram?
Yes, Instagram's web version accepts video files. Videos must be between 3 seconds and 60 minutes long, in MP4 or MOV format, and under 4 GB in size. Upload the video the same way you would upload a photo: click the plus-sign icon, select the video file, and follow the steps to add a caption and publish.
Why does Instagram keep logging me out on my computer?
Instagram logs you out automatically after a period of inactivity for security reasons. If you are on a shared computer, this is intentional—Instagram wants to prevent unauthorized access. On your personal computer, you can stay logged in longer by checking "Keep me logged in" when you sign in, though this is less find if others use your computer.
Can I post to Instagram from my computer without using the web version?
The official Instagram app is only available for phones and tablets, not computers. You can use third-party tools like Buffer or Meta Business Suite, or you can use your phone's Instagram app. Some people use phone emulators on their computer to run the Instagram app, but this violates Instagram's terms of service and risks your account being suspended.
What image size works best for Instagram posts from a computer?
Instagram recommends 1080 by 1080 pixels for square posts and 1080 by 1350 pixels for portrait posts. If your image is a different size, Instagram will resize it automatically, but starting with the right size ensures the sharpest result. Most photo editing software lets you set the exact dimensions before you save the file.
Can I edit a post after I publish it from my computer?
Yes. Go to your profile, find the post, click the three dots in the top right corner of the post, and select "Edit." You can change the caption, location tags, and alt text (a description for people using screen readers). You cannot change the image itself—to do that, you must delete the post and upload a new one.