Instagram hashtag wall: two ways to put a tag's posts on a screen
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An Instagram hashtag wall is a screen or web page that shows public posts carrying one hashtag, and there are two ways to fill it: a live social wall service that reads the tag through Instagram's official API, or a curated wall you build from a collected set of posts. The live service is the right answer for most events, because it updates within minutes and handles moderation and display for you. The curated wall is the better fit when you need posts from before the wall existed, when you want to approve every photo before it is shown, or when you cannot connect an Instagram Business account. This guide covers both, with the limits of each stated plainly.
What an Instagram hashtag wall is
A hashtag wall takes the posts people publish with your tag and shows them in one place. You see them on:
- A big screen at an event, so guests watch their own photos appear beside the stage.
- A page on your website, as a gallery of customers or fans using a campaign tag.
- Screens in a shop, lobby or venue, as a rolling display of what people post about the place.
The display is the easy part. The hard part is getting the posts, because Instagram decides who may read a hashtag and how far back they may look. Every wall, whichever way you build it, is shaped by that.
Option 1: a live social wall service
Services such as Walls.io connect to Instagram through Meta's official Graph API and keep pulling new posts while the wall runs. You choose a layout, add your hashtag as a source, approve or block posts, and point a screen at the wall's URL.
Walls.io's own help centre describes hashtag sources this way, as of October 2026:
Hashtag sources, on the other hand, allow you to gather public posts from any user who uses the specified hashtags, making them particularly useful for events or campaigns.
You can add one only after an Instagram Business account is connected. The same page sets out the limits that come with the API:
| Limit | What it means for your wall |
|---|---|
| Instagram Business account required | A personal account cannot be the source. Connecting it goes through Facebook. |
| 30 unique hashtags per rolling 7 days | One account can query at most 30 different tags a week. |
| 24 hours of backfill | A new hashtag source starts with "Most recent" posts from the last 24 hours, plus Top posts. |
| The tag must already exist | A brand-new hashtag cannot be added until at least one public post uses it. |
| Public posts only | Posts from private profiles never appear. |
The 24-hour point is the one that catches people out. If you set the wall up after your campaign started, posts older than a day are out of its reach. Once the source is added, the service keeps collecting new posts going forward, so set it up before the event and post a test photo with the tag first.
Walls.io's events pricing page offers a free 14-day trial with no credit card required, as of October 2026. Other wall services exist and work through the same official API, so the limits in the table above apply to them too. Our guide to the Instagram hashtag API covers those API limits in more detail.
Who should use a live wall service
- You are running a live event and want guests to see their posts on screen within minutes.
- You have, or can create, an Instagram Business account linked to a Facebook page you control.
- You want moderation tools and a designed layout without writing any code.
- Your tag starts fresh at the event, so the 24-hour backfill does not cost you anything.
If all four are true, use a wall service. Nothing below will beat it for a live screen.
Option 2: a curated wall from your own dataset
The other route is to collect the tag's posts into a dataset first, choose the ones you want, and display those. It is slower to update and more deliberate, and that is exactly what some walls need.
When a curated wall is the better fit
| Situation | Why a live service struggles | What a dataset gives you |
|---|---|---|
| The campaign started last week | 24 hours of backfill | Every post in your date window |
| A post-event recap wall | The live moment has passed | A fixed set you can sort and pick from |
| Every photo needs approval and permission first | Posts appear before you can ask | Nothing shows until you add it |
| No Business account, or no Facebook page | The official route requires both | A session for an account you control |
| A website gallery refreshed once a day | Paying for live updates you do not need | A scheduled collection and a static page |
Step 1: collect the posts
You need every public post carrying the tag inside your window, in rows you can sort. You can do this by hand for a small tag: open the hashtag on Instagram, switch to recent posts, and copy each post's link into a spreadsheet. Past a few dozen posts that becomes slow and error-prone.
The Instagram Hashtag Scraper is one way to automate it. You give it the hashtag and a session cookie for an Instagram account you control, set onlyPostsNewerThan to the start of your campaign, and it writes the posts to a dataset on your Apify account, newest first. Each row carries the post URL, publish time, caption, hashtags, like and comment counts, the posting account's username, the media type and a displayUrl image link. It charges $0.0005 per post delivered to your dataset, so a campaign of 1,000 posts costs $0.50, and a run that finds nothing new costs nothing.
Three limits to know before you rely on it:
- One hashtag per run. A wall built on several tags needs one run per tag.
- The recent feed only, with no Top posts mode, and it reads recent posts rather than deep history. Collect within days of the posts going up, not months.
- It needs a session for an account you are willing to lose. Instagram rate limits accounts that read a lot and may eventually action them.
The step-by-step scraping guide walks a first run, and the output reference lists every field.
Step 2: choose what goes on the wall
Export the dataset to a spreadsheet and add two columns: approved and permission. Then go through the rows:
- Drop what does not belong. Spam, off-topic posts that borrowed your tag, anything you would not show a room full of guests.
- Mark the posts you want. Sort by
likeCountfor a "most loved" wall, or bytakenAtto tell the campaign in order. - Ask permission before you display someone's photo. Comment on the post or message the account and record the answer. Showing a person's photo on your screen or website without asking is the fastest way to turn a happy guest into a complaint. Our guide to collecting user generated content on Instagram covers how to ask and how to keep the record.
The export to Excel guide shows how to get the dataset into a sheet with the columns in a useful order.
Step 3: put it on the screen
Pick the simplest display that does the job:
| Display | How | Good for |
|---|---|---|
| Instagram's own embeds | Paste each approved post's url into a page using Instagram's embed option | A website gallery; the post stays on Instagram, credited to its author |
| A slideshow | Save the approved images with the author's permission and add their username as a caption | A recap screen at the next event, a lobby display |
| A static web page | Generate a grid from the approved rows on a schedule | A campaign page refreshed daily |
Download any image you plan to keep. Instagram serves displayUrl from its image servers with signed links that stop working after a while, so a wall that points at those links will show broken images within days. Save the approved files and credit each one.
Keeping a curated wall fresh
A curated wall can still update. Schedule the collection on Apify to run every few hours with onlyPostsNewerThan set to a short window, such as 1 day, so each run reads only new posts. Review the new rows, approve what fits, and republish. Because you pay only for delivered posts, a run that finds nothing new is free.
Live service vs curated wall, side by side
| Live wall service | Curated wall from a dataset | |
|---|---|---|
| Update speed | Within minutes | As often as you collect and review |
| Posts from before setup | The last 24 hours, plus Top posts | Your whole date window, collected soon after |
| Account needed | Instagram Business account linked to Facebook | A session for an account you control |
| Moderation | Built in | Your spreadsheet |
| Display and layout | Built in | Yours to build or choose |
| Hashtags | Up to 30 unique per week per account | One per run, any number of runs |
When the manual way is enough
You do not need either tool for a small wall. If your tag has a few dozen posts, open it on Instagram, screenshot or embed the ones you like after asking their authors, and drop them into a slideshow. That takes an evening and costs nothing. Tools start paying off when the tag has more posts than you can scroll through comfortably, when you want the wall to update without you, or when you need the posts sorted by date or likes.
A checklist for any hashtag wall
- Pick a tag nobody else uses, so the wall shows only your posts. The event hashtag guide covers choosing one.
- Post a test photo with the tag before the wall goes live.
- Tell people their account must be public for their post to appear.
- Decide your moderation rule in advance: who approves posts and what gets blocked.
- Ask before you display, and keep a record of who said yes.
- Collect soon after the posts go up, because recent feeds move on quickly.
If you want to see how busy a tag already is before you build a wall around it, the free hashtag checker reads its recent posts and shows the activity. When you are ready to collect, run the scraper on Apify.