What is Poster Cat?
Poster Cat is a free browser-based poster and cover maker for social posts, thumbnails, quote cards, flyers, and promo graphics. It lets you type the message, choose a format, and export a clean PNG without logging in.
No login · no watermark · no uploadA poster machine —
A poster machine —
type and it's done
YouTube thumbnails, Instagram posts & stories, Pinterest pins, quote cards — no template hunting, no layers. Type your text and the image is ready. No membership to hit Download, and the export never carries a watermark.
Everything runs in your browser — nothing uploaded
“
Make something people want. Then say it clearly.
— Poster Cat
One line, five seconds
Verified tool facts
A free poster maker that keeps everything in your browser.
Poster Cat is reviewed as a first-party tool, not a scraped template directory. Platform sizes are checked against published platform recommendations and updated when image specs change.
Updated 2026-07-07 · reviewed by the Poster Cat team
Does Poster Cat upload my images or text?
No. Poster Cat runs in your browser, so text edits and exports stay local unless you choose to share the finished image yourself.
Which poster sizes does Poster Cat support?
Poster Cat includes ready-made formats for YouTube thumbnails, Instagram posts and stories, Pinterest pins, quote cards, flyers, printable posters, and other common marketing graphics.
What would you like to make?
Standard poster sizes & dimensions
Look up image dimensions, ratios and printing notes before designing.
Make a poster to print
Create an A4, A3 or 8×12 inch poster and download PDF or PNG.
Make a WeChat article cover
Create a 900×383 article cover with a guide for its square thumbnail crop.
Xiaohongshu (RED) cover maker
Create a vertical RED cover image that fits the feed.
Print a set of place cards
Paste a guest list and make flat or folded cards on A4 or Letter sheets.
Social image size guide
How we check and update platform image dimensions.
Social Graphics4
YouTube thumbnails, Instagram posts & stories, Pinterest pins — type and it's done.
Video cover
16:9 thumbnail
Local
YouTube Thumbnail Maker
Drop an image, add a bold headline, and export a 1280×720 YouTube thumbnail — highlight blocks make the text pop.
Product post
1:1 / 4:5
Local
Instagram Post Maker
Type a headline, pick a theme, and export a 1:1 or 4:5 Instagram post — great for tip graphics and carousel covers.
Story drop
9:16 mobile
Local
Instagram Story Maker
Make a 9:16 full-screen story: type a headline, pick a theme or drop a photo, export 1080×1920 — no watermark.
Pin guide
2:3 saveable
Local
Pinterest Pin Maker
Make a 2:3 pin (1000×1500): type a clear headline, add a highlight block, pick a theme — no login, no watermark.
Text Posters1
Turn a line of text into a card ready for social.
Posters2
Promo posters and 300dpi print-ready posters — type and it's done.
Local promo
offer poster
Local
Social Promo Poster Maker
Drop a background image, overlay a headline, and export a vertical promo poster in 3 steps.
Print poster
A4 / A3
Local
Print Poster Maker
Make an A4, A3 or 8×12 inch poster. Download a PDF with the correct page size or a high-resolution PNG.
Sizes1
Exact pixel sizes for every platform — look up, then make.
Wedding4
Invitations, save-the-dates, table numbers and place cards — type and it's print-ready at 300dpi.
Invitation
formal card
Local
Wedding Invitation Maker
Type the couple's names, date and venue and get an elegant wedding invitation — 7 palettes, 5×7 print-ready at 300dpi.
Save date
wedding note
Local
Save the Date Maker
Type the couple's names and wedding date to make a save-the-date card — lock the day into your guests' calendars.
Table 08
reception card
Local
Wedding Table Number Maker
Type a number to get an elegant table number card — make a matching set, 5×7 print-ready for frames.
Guest name
seat card
Local
Place Card Maker
Turn a guest list into printable place cards. Download A4 or Letter sheets with cut lines, or a single card as PNG.
Covers3
WeChat, Xiaohongshu and Channels covers — exact sizes, one click.
Article cover
safe crop
Local
WeChat Cover Maker
Make a 900×383 WeChat article cover with a 1:1 safe-zone guide so your title never gets cropped.
Note cover
3:4 big title
Local
Xiaohongshu Cover Maker
Make 3:4 big-title covers with color variants, and batch-export a whole set at once.
Slide set
cover + pages
Local
Xiaohongshu Carousel Maker
Generate a whole multi-slide carousel — one cover plus N content slides — sharing one consistent style, then download them all as a numbered ZIP.