MELLOW HUB · FREE TOOL

Free carousel maker for Instagram and LinkedIn

Type your points, get carousel slides: PNGs for Instagram at 4:5, 3:4 or 1:1, or a PDF LinkedIn shows as a swipeable document. Free, no sign-up, no watermark.

By Mellow · Updated

Write it, see the slides

7 slides, 1080×1350.

Everything is drawn in this page; nothing is uploaded. On LinkedIn, add the PDF as a document to a post and give it a title: it shows as swipeable pages.

How do you make a carousel for free?

Write one idea per slide, with an empty line between slides and the heading on each slide’s first line. Pick a look and a format above, and download: PNGs for Instagram at 1080 × 1350, 1080 × 1440 or square, or a single PDF for LinkedIn, where a document post shows as swipeable pages. Everything happens in your browser, with no sign-up and no watermark.

A structure that gets swiped

  1. Cover: the promise. Say what the reader gets, with a number if there is one. The cover is all most people see.
  2. One idea per slide. A heading that works alone, then one or two sentences. If a slide needs more, split it.
  3. Colour the word that matters. Wrap it in *asterisks*; one per slide is plenty.
  4. End with a use. A question, a summary or “save this”: the last slide is where people decide to save or share.

Sizes for each network

WhereSizeHow many
Instagram, from the app1080 × 1350 (4:5) or 1080 × 1440 (3:4), or squareUp to 20
Instagram, through a schedulerUp to 4:5Up to 10
LinkedIn document (PDF)Any page size; 1080 × 1350 reads well on phonesUp to 300 pages, 100 MB

Sources: Instagram Help Center: Share a post with multiple photos or videos, Meta for Developers: Instagram Graph API, IG User media (updated 28 September 2026) and LinkedIn Help on documents, read on 1 October 2026. For a panorama split across slides, use the carousel splitter; for every network’s sizes on one page, see social media image sizes.

Questions

How do I make a LinkedIn carousel?

LinkedIn has no carousel format for ordinary posts; what people call a LinkedIn carousel is a PDF added to a post as a document, which LinkedIn shows as swipeable pages. Choose "LinkedIn document (PDF)" above, download the PDF, then add it to a post as a document and give it a title.

What size should Instagram carousel slides be?

1080 × 1350 (4:5) works in the app and through schedulers; the app also keeps 1080 × 1440 (3:4). Instagram applies one orientation to every slide in a carousel and takes up to 20 from the app, 10 through its API.

How many slides should a carousel have?

As many as the idea needs and no more. Five to eight is common for a list: a cover that says what the reader gets, one point per slide, and a last slide that tells them what to do with it.

Is there a watermark?

No. The slides are yours, drawn in your browser and downloaded without any mark. Nothing is uploaded.

Can I use my own fonts or photos?

Not in this version: it uses four built-in looks with fonts from your device, so it works on any computer. Mellow Hub’s Creative Studio designs carousels with photos and editable layouts from a short brief.

Designed slides from a brief, then scheduled

Mellow Hub’s Creative Studio writes and designs carousel slides from a one-line brief and your photos, as editable slides, and Hub schedules them to Instagram, LinkedIn (as images, up to 20), Threads and the rest in one go, checking each network’s limits first, such as Instagram’s 10 items per post through its API. See the Creative Studio guide.

See the Creative Studio

This tool is free and needs no account. Mellow Hub is paid, after a 7-day free trial, and publishes only what you, or an assistant you have authorised, send or schedule.

More free tools

  • LinkedIn text formatter: Bold, italic, underlined text and bullet lists for LinkedIn posts, with a preview of where the post folds.
  • YouTube thumbnail maker: Make a thumbnail from your photo and a bold headline in four layouts, check it at Up next size and export 1280×720 or 4K.
  • YouTube thumbnail tester: See a thumbnail in YouTube’s home feed, search and sidebar at their real sizes, then export it at 1280×720 under 2 MB.
  • Instagram grid maker: Split one image into 3, 6, 9 or 12 posts that line up on your profile, numbered in the order to post them.
  • Instagram carousel splitter: Cut a wide image into seamless carousel slides at 4:5, 3:4 or 1:1, ready to swipe.
  • Social media character counter: Count one post against every network’s limit at once, with X’s weighted count and Bluesky’s graphemes.
  • Social media post checker: Check caption, title and media count against Mellow Hub’s input rules for each destination.

All free tools · Answers about posting and scheduling

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