You write a post you're proud of. In the editor it looks clean: a sharp first line, neat spacing, a bit of bold for emphasis.
Then it hits the feed and looks like someone else wrote it. The hook is half-buried under "See more." The spacing collapsed. The bold either survived or quietly turned into plain text.
A good preview tool closes that gap before you publish. The best ones do it while you write, so you shape your hook and formatting against the real feed version instead of fixing it afterward.
Below are the paid LinkedIn tools that do this well, what each one offers, and which fits how you work. We make one of them, so we've been straight about where the others are stronger.
Preview while you write, or check before you publish
The tools split into two groups, and the right one depends on how often you post.
A standalone previewer is a checkpoint: you write somewhere, paste your draft in, and check it. That covers the occasional post, and our free preview generator does it without a login.
A tool with preview built into the editor folds that check into the writing. You see the "See more" cutoff, the mobile line breaks, and your formatting update as you type, so the post is right the first time. If you post every week, that's what separates a tool you keep from one you abandon.
That difference matters most for the one thing the feed hides: the fold. On mobile, LinkedIn cuts your post after roughly the first 210 characters behind "See more," and most people never tap. A tool that shows your whole post in a tidy card hides the exact decision that determines whether the rest gets read. The good tools show you the cutoff; the weak ones show you a fantasy.
What to look for in a preview-while-you-write tool
When we tested these tools, we scored each on the things a paying writer actually feels:
- Preview while you write: live in the editor, or a separate paste-in step?
- Mobile and desktop for both personal profile and company page: LinkedIn truncates each differently, so can you see all three?
- Formatting fidelity: do bold, bullets, whitespace, and the fold match the live feed?
- The rest of the workflow: does it also handle drafts, scheduling, and analytics, or just preview?
- Who writes the post: does the tool help you write better, or write the post for you with AI?
- Account safety: does it stay inside LinkedIn's rules, or lean on automation that can get you flagged?
- Price and trial: what does it cost, and can you try it first?
The best paid LinkedIn tools with built-in preview
AuthoredUp
AuthoredUp puts the preview where you write: inside LinkedIn's own composer, through the Chrome extension. As you type, you see the mobile and desktop versions side by side and a separate view for personal profiles versus company pages (the two truncate differently). The formatting toolbar is the deepest of the group (bold, italic, underline, strikethrough, bullets, numbered lists, staircase, emoji), and a readability grade scores the draft as you go. Everything renders in the preview exactly as it will post, so the fold is something you design around, not discover later.
Preview is one part of the workflow. You also get drafts, scheduling, and analytics that go back years through LinkedIn archive import, not just from the day you signed up. The approach is human-led: it helps you write a better post yourself rather than generating one for you, and it stays inside LinkedIn's rules, with no automation that risks your account. (Coauthor, our AI assistant, is opt-in and trains on your own posts; it's in beta.)
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The honest limitation: to schedule or publish, you need the Chrome extension installed. Pricing starts at $19.95/mo, with a 14-day free trial and unlimited company pages included.
Best for: people who write their own LinkedIn posts regularly and want preview, drafts, formatting, and long-range analytics in one place.
Taplio
Taplio is the most-recognized paid option, built around an AI assistant trained on 500M+ posts that drafts the post for you, plus scheduling, analytics, and a sales-prospecting layer. Preview lives in Taplio's own dashboard behind an Edit/Preview toggle and shows both desktop and mobile (Taplio also runs a free standalone previewer). Formatting is light and sits mostly inside AI actions: Improve Post, Add Emojis, Fix Grammar.

Two trade-offs for this audience: it's the priciest tool here (from around $39/mo on annual billing), and parts of its toolkit lean on engagement automation and data scraping that brush against LinkedIn's terms, worth knowing if account safety matters to you. Its analytics also track only from your signup date forward. We go deeper on our Taplio alternative page.
Best for: teams that want AI content plus sales prospecting in one dashboard and aren't bothered by the automation trade-offs.
Supergrow
Supergrow is AI-writing-first: a "Content DNA" voice profile learns your style and generates posts and carousels for you. Preview lives in Supergrow's own platform with mobile, tablet, and desktop views and a Check Score button. Formatting is solid for a generator: bold, italic, underline, strikethrough, bullets, and mono. Around it you get auto-publish scheduling, an analytics dashboard, voice notes, and an auto-pilot generator.

Pricing is friendly for solo creators (Starter $19/mo, Pro $39/mo, Agency from $69/mo). The thing to weigh is philosophy: the product is built to write the post for you, so the preview is a final glance rather than something you shape line by line as you write.
Best for: creators who want AI to draft posts and carousels and treat preview as a final check.
ContentIn
ContentIn is one of the few besides AuthoredUp that previews right inside LinkedIn: its Chrome extension adds a preview pane (mobile, tablet, and desktop) to LinkedIn's own composer, with "Write with ContentIn" and "Rewrite with AI" buttons alongside. The engine is an AI Ghostwriter built to match your voice, plus scheduling, an idea manager, and analytics on any profile you visit (viral posts, optimal times).

Pricing is mid-range (Essentials $15/mo, Growth $31/mo, Pro $48/mo). The in-LinkedIn preview is a real plus, but like the other AI-first tools the center of gravity is generation, and the formatting controls are lighter than AuthoredUp's or Kleo's.
Best for: people who want an AI ghostwriter with an in-LinkedIn preview and profile analytics.
Kleo
Kleo has shifted from a content-discovery extension into an AI personal-brand tool. You write and preview in the Kleo app (the Chrome extension now mostly captures inspiration into swipe files), with desktop and mobile previews plus a handy "Hook Only" view to refine what sits above the fold. Formatting covers Unicode bold and italic that render in the feed, bullets, indent, and staircase. It also schedules, analyzes, and ships 200+ hook templates.

The catch is price: Kleo runs a single tier at $99/mo (or $999/year), the most expensive option here by a wide margin.
Best for: creators who want hook inspiration plus a polished preview in one place and don't mind the premium price.
[VISUAL: SCREENSHOT grid of the five preview UIs (team has captures of AuthoredUp, Taplio, Supergrow, Kleo, ContentIn). Pair AuthoredUp's in-LinkedIn editor against a dashboard tool to show the in-feed vs separate-app difference at a glance.]
Just want a quick, free preview?
If you only need to check one post and don't want a paid workflow tool, a free standalone previewer is the answer. Ours is the free LinkedIn Post Preview Generator: paste your draft, see the mobile and desktop feed version, no login.

LinkedIn's own Post Inspector does something different. It previews the link-share card (thumbnail, title, description) that shows when you paste a URL into a post, not your post text. Reach for it when a shared article pulls the wrong image, not when you want to see how your writing reads.
Which one should you pick?
It comes down to who's writing the post and how often:
- You write your own posts, often, and want the full workflow → a built-in-preview content tool like AuthoredUp, so preview, drafts, formatting, and analytics live together. Start with the free trial or browse our rundown of LinkedIn tools.
- You want a broad suite with sales prospecting → Taplio, with the automation and pricing trade-offs noted above.
- You just need a one-off preview → a free standalone tool.
Whichever you choose, hold it to the bar that matters: if it can't show you the real "See more" fold on mobile, it isn't showing you your post — it's showing you a draft that doesn't exist. And the fold is where your hook lives or dies.
Frequently asked questions
Are LinkedIn post preview tools free?
The standalone previewers are usually free, including ours, with no signup. The full workflow tools (preview plus drafts, scheduling, analytics, AI) are paid, though most offer a free trial so you can test the preview before committing.
Can I preview a LinkedIn post with an image?
Yes. The better tools show your text and attached image together, including how the image crops in the feed. Check this specifically, since some tools preview text only.
Can I preview a LinkedIn post on mobile?
The mobile view is the one that matters, since that's where the fold cuts most aggressively. Look for a tool with an explicit mobile/desktop toggle. Here's how to preview a post on LinkedIn step by step.
Does LinkedIn have a built-in preview?
LinkedIn's composer shows a rough draft view, but it doesn't reliably show the mobile "See more" fold or how your formatting renders for other people. That gap is why dedicated preview tools exist.
What's the character limit before LinkedIn cuts off my post?
The full limit is 3,000 characters, but the feed truncates at roughly 210 on mobile behind "See more." More on LinkedIn's character limit and what belongs above the fold.

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