Free tool
Social media post previewer
Type a post once and see it as a card for each of the 10 social networks Postify publishes to: your line breaks, the characters it uses against each network's limit, the part that runs over, and where a network's feed folds it behind "see more". It is drawn in your browser, with no sign-up.
Fits every network listed.
Your name
now
Your Instagram post will appear here
0 / 2,200- TikTok
Your name
now
Your TikTok post will appear here
0 / 2,200 - YouTube
Your name
now
Your YouTube post will appear here
0 / 5,000 Your name
now
Your LinkedIn post will appear here
Your name
now
Your Facebook post will appear here
0 / 63,206- Bluesky
Your name
now
Your Bluesky post will appear here
0 / 300 Your name
now
Your Pinterest post will appear here
0 / 500- Mastodon
Your name
now
Your Mastodon post will appear here
0 / 500 - Telegram
Your name
now
Your Telegram post will appear here
0 / 4,096 - Discord
Your name
now
Your Discord post will appear here
0 / 2,000
Only networks Postify publishes to today get a card. X, Threads, and Reddit coming soon. Need only the numbers? The character counter lists every limit in one table.
How it works
Measured the way Postify's composer measures
Each card measures your post the way Postify's composer does: every UTF-16 code unit is one character, so many emoji count as 2. A post exactly at a network's limit fits; one character more is over, and that character and everything after it is marked.
The card is a neutral one in Postify's style, not a copy of each network's own layout. Networks change their fonts and layouts, and where a line wraps depends on the screen, so read the card for length, line breaks and the fold rather than for pixel-exact looks.
A fold is drawn only where a network's own page says where it cuts text off. Today that is LinkedIn; the other networks publish no number, so their cards show the whole post.
The fold
Where "see more" cuts a post
LinkedIn: after 150 characters
LinkedIn's own single image ad specifications say to use up to 150 characters of introductory text, counting spaces, emojis and punctuation, to avoid truncation.
Source: LinkedIn Help: single image ads advertising specifications, checked 2026-10-30.
The other networks do not state on their own pages where their feeds cut text off, so their cards show the whole post rather than a guessed fold.
Questions
Post previews, answered
What does the post previewer show?
Your post on a card for each of the 10 social networks Postify publishes to, with its line breaks kept, the characters it uses against that network's limit, and the part past the limit marked. Where a network publishes where its feed cuts text off, the card folds there behind "see more".
Where does LinkedIn cut a post off with "see more"?
The previewer folds LinkedIn posts after 150 characters. LinkedIn's own single image ad specifications say to use up to 150 characters of introductory text, counting spaces, emojis and punctuation, to avoid truncation. Where the cut really falls depends on the device, so treat the opening 150 characters as the part everyone sees.
Does the preview look exactly like each network?
No. It is a neutral card in Postify's style that shows which network it is for, your text as it will read, and whether it fits. Each network's own layout and fonts change over time and differ by device, so wrapping can differ slightly from the real feed.
How are characters counted?
The same way Postify's composer and its character counter count them: every UTF-16 code unit is one character. Letters, spaces and line breaks count as 1, many emoji count as 2. A network's own counter may weigh some characters differently, so treat a post within a few characters of a limit as a close call.
Do I need an account to preview a post?
No. The previewer is free, needs no sign-up, and draws the cards in your browser; the tool itself does not store or send what you type. You only need a Postify account to schedule or publish the post.
Schedule it in Postify
Postify's composer previews each network's version of a post as you write it, and stops a post that is over a network's limit before it can be scheduled. There is a free plan with no credit card required.