Social Media Post Preview
See one post on LinkedIn, Instagram, Facebook, Threads, X, Bluesky, Mastodon and YouTube before you publish it, checked against each network's character limit.
- Free, no sign-up
- Your text and images stay in your browser
- Not affiliated with any network
Previews
Preview
- LinkedIn allows 3,000 characters in a post.
Plan your team's posts in one place
Scripe is a social media management platform for B2B teams and agencies, built LinkedIn-first. Today it publishes to LinkedIn.
How to preview a post for several networks
This social media post preview checks one text against eight networks' limits at once and shows it as a card for the network you select. It runs in your browser, before anything is published. Every limit it applies links to the network's own page below. The LinkedIn card follows LinkedIn's feed as Scripe measured it; the other cards are a neutral layout with each network's name and logo.
- Paste your post into the text box, or select “Insert an example”.
- Add your name, handle and profile photo if you want the cards to look like yours. A handle is shown on the networks that show one.
- Add the image the post will carry. Each card shows it at the shape the network documents for its feed, or whole where it documents none.
- Check the list of networks: each one shows how much of its limit the text uses, or how many characters it is over.
- Select a network to see its card. The LinkedIn card cuts the text where LinkedIn's feed shows “… more”. On every other card the part of the text past the network's limit is struck through, the list of networks says how far over you are, and the notes under each card say what the preview cannot show.
What each network allows in a post
Each network sets its own limit and counts in its own way, so one text can fit on LinkedIn and be too long for X. The table shows each network's published limit and how the preview counts.
| Network | Limit | How it counts |
|---|---|---|
| 3,000 characters | Counted strictly | |
| 2,200 characters, at most 5 hashtags | Counted strictly | |
| Facebook Page | No published limit | Counted strictly |
| Threads | 500 characters | Emoji count their bytes, usually 4 |
| X | 280 characters (25,000 with X Premium, not counted here) | Links 23; emoji, Chinese, Japanese and Korean characters 2 |
| Bluesky | 300 characters | Every character you see is 1, links in their short form |
| Mastodon | 500 characters by default | Links 23 |
| YouTube post | No published limit | Counted strictly |
“Counted strictly” means 1 for each letter, space and line break, and 2 for most emoji. The preview counts that way where a network doesn't document how it counts, so you may have a little more room than shown. The limits come from each network's own pages:
- LinkedIn: its help article on posts
- Instagram: its help page on hashtags for the 5 hashtags, and Meta's API reference for captions for the 2,200 characters (it still gives 30 hashtags)
- Threads: Meta's Threads API documentation
- X: its counting rules
- Bluesky: its post schema
- Mastodon: its posting guide
Meta publishes no limit for Facebook Page posts, and YouTube's help pages give none for a post.
How each network shows your image
Only some networks document the shape their feed gives an image, so the preview crops a picture only for those and shows it whole everywhere else.
| Network | What its feed does with an image |
|---|---|
| Takes 3:1 to 4:5; centers and crops a wider picture | |
| Shows 1.91:1 to 3:4, crops other shapes to fit | |
| X | Shows images between 2:1 and 3:4 in full |
| Mastodon | Leaves cropping to each app; its web app most often shows 16:9 thumbnails |
| YouTube post | Shows the image at 1:1 in the feed |
| Facebook, Threads, Bluesky | Not documented for feed posts as of 17 October 2026 |
The shapes come from these pages:
- LinkedIn: its help page on images in posts
- Instagram: its help page on photo sizes
- X: its help page on pictures
- Mastodon: its API guidelines
- YouTube: its help page on posts
Instagram's publishing API allows a narrower range, 4:5 to 1.91:1, than its help page, so the preview follows the help page, which describes the app. LinkedIn doesn't say what it does with a picture taller than 4:5, and X doesn't say what it does with an image outside 2:1 to 3:4, so those cards show such a picture whole.
Where feeds cut a long post
As of 17 October 2026, none of the eight networks, LinkedIn included, documents where its feed cuts a long post with “… more”; Scripe measured LinkedIn's cut, so only the LinkedIn card draws it.
The only figures the networks publish are for ads: Meta's ads guide gives 125 characters of primary text for an Instagram ad, and it says nothing about an ordinary post. Without a documented or measured cut, any line drawn for a network is an estimate. The LinkedIn card applies the cut Scripe measured on LinkedIn's desktop feed and mobile website in October 2026, the same one the LinkedIn post preview uses. Every other card shows the whole text and marks only what goes over the network's limit.
Plan and approve your team's posts
A preview catches a cut word or a cropped picture before a post goes out; a team that posts every week also needs one place to plan, write and approve each post. Scripe is a social media management platform for B2B teams and agencies, built LinkedIn-first. Today it publishes to LinkedIn.
In its content calendar your team plans posts for the Company Page and colleagues' profiles, writes them with AI, asks for a review and schedules them. For more help with your posts, browse the other free tools.
How this page was written and checked: our editorial standards.