For marketers, founders and small teams
Design once. Publish everywhere.
Make one master banner. Buno lays it out again for 37 sizes across 9 platforms, with captions ready to paste.
Coming soon
100+ templates, built to work in every size.
Campaign-ready designs for sales, launches, events and more. Pick one, add your words and brand, and Buno makes all 37 sizes. Join the list to get them first.
What changes when Buno does the resizing.
One design per size
Everything between one design and every size you need.
Smart resizing
Rebuilt, not stretched. · What sells stays. · Safe zones handled. · Readable everywhere. · Tweak any size.
1200×628Facebook feed post
Design with AI
Describe your campaign to Claude, Cursor or another AI assistant. · It creates the banner in your Buno account. · You open one link, review every size and export.
Example: you ask your AI assistant for a Black Friday banner; it creates the design in Buno with 17 sizes and gives you a link to review and export.
Captions
Write your caption once. · Buno fits it to each platform's character limit. · Hashtags, alt text and your link added.
Export
PNG, JPG, WebP or PDF. · Every size and caption in one ZIP.
How it works
From one idea to every size in four steps.
Idea, design, every size, export. One place.
Showing Start.
Built for people who ship campaigns,not just design them.
Marketers and social teams
Ship to social, display and email in one pass. Stop rebuilding the same post for every channel.
Founders and solopreneurs
Launch on every platform in an hour, not a day.
Freelancers and agencies
Deliver full size kits to clients without the busywork.
Small business and non-designers
Good-looking posts in every size. Buno handles spacing, layout and readability.
Frequently asked questions
Can't find your answer? Ask us. A real person reads every message.
Is Buno free?
Yes, you can start for free. No credit card needed.
Does Buno post to my accounts?
Not directly. Buno prepares every image and caption; you post with the tools you already use.
Which sizes are included?
37 sizes across Instagram, Facebook, LinkedIn, X, TikTok, YouTube, Pinterest, display ads and email. Need something else? Add any custom size from 50 to 10,000 px.
Do I need design skills?
No. Buno handles layout, spacing and readability in every size.
Can I use my own images, logo and fonts?
Yes. Upload your own images and logo, pick free Unsplash photos, and use any font from the Google Fonts library.
Can I change just one size?
Yes. Edit any size on its own. If the master changes later, Buno tells you that size is out of date.
What file formats can I export?
PNG, JPG, WebP or PDF. Download one size, or every size and caption in one ZIP.
What is Buno MCP?
It lets AI assistants like Claude and Cursor create and edit designs in your Buno account. You describe the campaign; Buno builds every size. ChatGPT support is coming soon.
When are templates coming?
Soon. Join the list and you'll be first to know. Until then, start from one of 5 starter templates.
Your next campaign starts with one design.
Make the banner once. Buno makes the other 36.
Free to start. No credit card. No design skills needed.