Is this an official Facebook tool?

No. This is an independent mockup tool built to match Facebook's News Feed ad layout as closely as possible with HTML/CSS. It is not affiliated with Meta Platforms.

What are the character limits for Facebook ads?

Facebook recommends: primary text up to 125 characters (longer text is truncated with a "See more" link), headline up to 40 characters, and link description up to 30 characters. This tool enforces those limits with live warnings.

Does this tool require a Facebook account or API key?

No. Everything runs in your browser — no login, no API, no data sent to any server.

Can I use a real image in the mockup?

Yes — click the image placeholder area in the preview to upload a local image. The image stays in your browser and is never uploaded anywhere.

What aspect ratio does Facebook recommend for News Feed images?

Facebook recommends 1200 x 628 px (roughly 1.91:1) for link ads. The preview maintains this ratio in the mockup.

Why does my body text show "See more"?

Facebook truncates primary text at approximately 125 characters on desktop. This tool mimics that behavior so you can see exactly where the truncation falls.

Facebook Ad Preview Tool

Name: Facebook Ad Preview Tool
Availability: InStock
Author: Nham Vu

Fill in your ad copy and see a live News Feed mockup of your Facebook ad — no account needed.

Ad Details

Page Name

Primary Text (Body Copy) 0 / 125

Ad Image (optional — stays in your browser) Click to upload image (1200x628 recommended)

Headline 0 / 40

Link Description 0 / 30

Display URL / Domain

CTA Button

Character limit guide

Primary text: 125 chars shown, rest hidden behind "See more"
Headline: 40 chars recommended
Link description: 30 chars recommended

News Feed Preview

Desktop

Acme Corp

Summary

Fill in your ad copy and see a live News Feed mockup of your Facebook ad — no account needed.

How it works

Enter your Facebook Page name and optional page URL.
Type your primary body text (up to 125 characters visible before "See more").
Add a headline (40 characters max) and a link description (30 characters max).
Enter your display URL/domain and pick a CTA button label.
The right panel updates in real time with a pixel-accurate News Feed card mockup.
Copy any field or share the preview with your team.

Use cases

Review ad creative with clients before launching a campaign.
QA-check character limits on headlines and body text.
Test multiple CTA button labels to find the best fit.
Create mockup screenshots for media plans and presentations.
Train copywriters on Facebook ad format constraints.
Compare ad variations side-by-side in a deck.
Verify that long headlines truncate acceptably.
Draft Facebook ads offline without needing a Business Manager account.

Frequently Asked Questions

Last updated: 2026-07-01 · Reviewed by Nham Vu