Free InVideo AI Prompts for Ad Videos for Facebook: Ideas That Actually Work

If you have ever typed "make a Facebook ad for my business" into an AI video tool and got back a slideshow of stock clips with a generic voiceover, you already know the problem. The tool did what you asked; you just did not ask for enough. This guide gives you free InVideo AI prompts for Facebook ad videos that carry the details a good ad needs: who the viewer is, what the hook is, how many seconds each beat gets, what proof you can honestly show, and what to avoid. It is written for small business owners, freelancers and in-house marketers who produce their own paid social video and want fewer wasted ad dollars.

What InVideo AI is good at (and where it needs you)

InVideo AI is a prompt-driven video generator: you describe the video, and it assembles a script, media, voiceover and captions that you can then adjust by giving further instructions. That makes it strong for first drafts, concept testing and producing several variants quickly. It is weaker at anything that depends on your real product: it cannot know what your shop looks like, so upload your own footage and photos wherever you can, and treat stock visuals as filler. Features, export options, limits and licensing change over time, so check the tool's current features, limits and licence terms before you plan a campaign around them.

Two cautions apply to every prompt below. First, Facebook ads must follow Meta's advertising policies, including rules on claims, personal attributes and before/after imagery, so check the current policies before you publish. Second, never let the AI invent facts: discounts, ratings, customer counts and guarantees must come from you.

The prompt formula

Use this structure for any ad prompt:

1. Role and goal: "You are a direct-response video producer. Goal: [one action]."
2. Audience and offer: who, where, what they get, the real price or offer.
3. Structure with timings: hook (0-3s), problem, solution, proof, call to action.
4. Format and style: aspect ratio, length, caption style, voice tone, music mood.
5. Facts you supply: the only claims allowed.
6. Avoid list: things the video must not say or show.

Scenario 1: Dina's mobile dog grooming (service business)

Dina runs a two-van mobile grooming service in Tampa. She wants bookings from dog owners within 15 miles, with a budget of about 15 dollars a day.

Facebook video ad prompts for local services

Create a 25-second vertical (9:16) Facebook ad video for a two-van mobile dog grooming business in Tampa, Florida. Goal: get dog owners within 15 miles to tap "Book now" for a first groom at 20% off (offer valid until 30 November).
Structure: 0-3s hook showing a stressed dog in a car seat with on-screen text "Hate the groomer drive?"; 3-9s problem (waiting rooms, cages, a day lost); 9-18s solution: we come to your driveway, one dog at a time, no cages; 18-23s proof using only these facts: 6 years in business, fully insured; 23-25s call to action with the offer.
Style: warm, upbeat female voiceover, bold white captions with dark outline, bright natural clips, light acoustic music at low volume.
Avoid: before/after claims, health or medical promises, invented review quotes, fake star ratings, anything implying a rating.
Leave a text slot for my own van footage at 9-18s.

Why it works: the timings force a hook-first structure, and the facts list stops the tool from inventing proof. What to expect / check: a clean draft with generic dog clips; check that the offer date and "insured" appear exactly as supplied. Iterate: "Keep the script but make the hook a question about the driveway, and give me two alternate first-3-second openings."

Rewrite the grooming ad script for people who have an anxious or senior dog. Same 25 seconds, 9:16. Tone: calm and reassuring, never pushy. Hook: "Some dogs just can't do the groomer." Mention one real feature only: one-on-one appointments in our van. Do not mention medical conditions or promise the dog will "stay calm". End with "Check availability for your postcode". Provide the voiceover text separately so I can read it and approve it before generating.

Why it works: asking for the script as separate text lets you review claims before spending time on visuals. What to expect / check: soft language; watch for phrases such as "guaranteed stress-free". Iterate: "Cut any sentence that promises an outcome and replace it with a description of what we do."

Make a 15-second Facebook Stories version of the Tampa grooming ad in 9:16. Keep the first 2 seconds free of text so the platform interface does not cover it, keep captions inside the central safe area, and use one single call to action at the end: "Book your driveway groom". Only one scene change every 3 seconds. Use the same facts as the 25-second version and nothing else.

Why it works: shorter placements need fewer beats, and safe-area instructions reduce cropped text. What to expect / check: confirm captions are not hidden by the interface in a phone preview. Iterate: "Move all captions up 8% and make the call-to-action text larger."

Scenario 2: Arjun's candle store (e-commerce)

Arjun sells soy candles from a small online store. Average order is 38 dollars. He wants a prospecting video for people who like home decor.

Facebook ad video examples for online stores

Create a 20-second 4:5 Facebook feed video ad for a small online soy candle brand. Goal: first purchase of the "Cedar and Fig" candle (38 dollars, 40-hour burn time stated on our label). Audience: women and men 28-45 who like home decor and cosy interiors.
Structure: 0-3s macro shot of a match lighting a wick with caption "Your living room, but calmer"; 3-8s three quick shots of the candle in a living room, kitchen and bedroom; 8-14s facts as on-screen text, one at a time: hand-poured in small batches, soy wax, cotton wick; 14-18s 30-day returns (this is our real policy); 18-20s call to action "Shop Cedar and Fig".
Style: warm golden lighting, slow motion, soft piano, no voiceover, large captions.
Avoid: words like "best", "number one", health claims (stress relief, aromatherapy benefits), fake scarcity, fake reviews.

Why it works: the facts are supplied as short on-screen lines, and the avoid list removes the claims that most often trigger ad rejection. What to expect / check: aesthetically pleasing but generic candle clips; replace them with your own product shots. Iterate: "Replace the stock candle shots with placeholders labelled 'USER FOOTAGE: lit candle on shelf' so I can drop in my own."

Write three different hooks (first 3 seconds only) for the Cedar and Fig candle ad. Hook 1: a problem hook about a house that smells flat. Hook 2: a curiosity hook about how the candle is poured. Hook 3: a pattern-interrupt visual with no words. For each, give me the on-screen text, the visual description and the voiceover line, and note which audience each hook suits best. Keep each under 12 words of text.

Why it works: hooks decide most of an ad's performance, so generate and test them separately. What to expect / check: three usable options; remember that which one performs best is something only your test data can say. Iterate: "Turn hook 2 into a full 20-second version, keeping the same facts."

Create a retargeting ad, 12 seconds, 4:5, for visitors who viewed the Cedar and Fig candle page but did not buy. Tone: friendly reminder, not guilt. Show: product close-up, the line "Still thinking about it?", our real 30-day returns policy as on-screen text, then "Back to your cart". Do not mention any discount, because none is running. No voiceover; soft music only.

Why it works: retargeting needs a different message from prospecting; it removes friction rather than introducing the brand. What to expect / check: very short, simple output; confirm no discount appears. Iterate: "Add a second version that mentions free shipping over 50 dollars only if I confirm it applies."

Scenario 3: Priya's tutoring centre (lead generation)

Priya runs a small maths tutoring centre and wants parents to submit an enquiry form for a free 20-minute assessment.

Lead generation video prompts

Create a 30-second 9:16 Facebook video ad for a small maths tutoring centre. Goal: parents of 11-14 year olds submit the enquiry form for a free 20-minute assessment. Voice: friendly, calm male narrator. Structure: 0-4s hook "Maths homework turning into tears?"; 4-12s name the problem without blaming the child; 12-22s how we work: groups of no more than 5, weekly progress notes to parents (these are our real policies); 22-27s what the free assessment includes; 27-30s call to action "Send an enquiry". Avoid exam-result promises, guaranteed grade improvements, and images of identifiable children. Use illustrations or hands-only footage.

Why it works: the avoid list handles the two risks (outcome guarantees and children's imagery). What to expect / check: a gentle tone; verify no results claims slip in. Iterate: "Remove any sentence that implies a result and replace it with a description of the process."

Turn this real parent comment into a 20-second text-led video. Use it only with the parent's written permission, which I have: "My daughter stopped dreading Thursdays." Show the quote as large on-screen text over a calm background, attribute it as "Parent of a Year 8 student", then show the line "Free 20-minute assessment" and the call to action. No narrator. Do not change a single word of the quote.

Why it works: it uses a real, consented quote and explicitly forbids rewording. What to expect / check: confirm the quote is verbatim. Iterate: "Make the font larger and add a subtle progress bar at the bottom."

Worked example: from weak to strong

Prompt 1 (weak): "Make a Facebook ad video for my tutoring centre."

Typical result: a 30-second generic video with stock clips of students, a voiceover saying "unlock your child's potential", invented-sounding claims such as "proven results", and a vague call to action. Nothing mentions the free assessment, age range or location.

Prompt 2 (improved): the 30-second tutoring prompt above, with the audience, offer, timed structure, real policies and avoid list.

Why it is better: it states one goal, one audience and one call to action; it supplies the only allowed claims; and it removes the phrases most likely to be rejected or to damage trust.

An end-to-end workflow for a Facebook ad set

Step 1, research brief: I sell [PRODUCT/SERVICE] to [AUDIENCE] at [PRICE]. List five objections a buyer might have, and which of these I can answer using only facts I have given. Do not invent any facts.

Step 2, hooks: Using objection [NUMBER], write five 3-second hooks in different styles (question, bold statement, visual surprise, mini-story, number-based using only my real numbers).

Step 3, script: Write a [LENGTH]-second script using hook [NUMBER], with a timed beat sheet, on-screen text and voiceover as separate lines. Supply only these facts: [FACTS].

Step 4, produce: Generate the video in [9:16 or 4:5], with captions in [STYLE]. Leave placeholders for my own footage at [TIMESTAMPS].

Step 5, variants: Create two more versions that change only the first 3 seconds, so I can compare hooks in a test.

After step 5, export, check on a phone, then upload to Meta's ad tools with your own headline and primary text.

Troubleshooting

| Problem | Likely cause | Fix | |—|—|—| | Generic stock footage | Prompt has no visual direction | Describe each shot or upload your own clips | | Invented claims in the voiceover | No fact list | Add "use only these facts" and review the script first | | Captions cut off | Ignored safe areas | Ask for captions in the central area; preview on a phone | | Voiceover sounds flat | Tone unspecified | Specify pace, tone and a sample line | | Too long | No timings | State seconds per beat and total | | Ad rejected | Policy-sensitive language | Remove personal-attribute, outcome and before/after claims; check Meta's policies |

Review checklist before you publish

• Every claim, price, date and policy is true and appears exactly as you supplied it.
• No fake reviews, ratings, scarcity or discounts.
• Consent is on file for any real quote, voice or person shown.
• Stock footage does not misrepresent your product.
• Captions are readable on mute and inside the safe area on a phone.
• The call to action is single and clear.
• You have checked Meta's current ad policies and your footage and music licence terms.

FAQ

Can InVideo AI make a Facebook ad from one sentence?

It can produce a draft, but a one-sentence prompt gives you a generic result. Supply audience, offer, timed structure, facts and an avoid list.

What length should a Facebook video ad be?

There is no universal answer; short formats suit cold audiences and slightly longer ones suit explaining a service. Test two lengths and let your own results decide.

Do I need a voiceover?

Not always. Many people watch with sound off, so captions matter either way. If you use a synthetic voice, consider whether disclosure is appropriate for your market and platform rules.

Can I use the same prompt for Instagram Reels?

Often yes, with a 9:16 format and tighter safe areas. For more short-form ideas, see our guide to scroll-stopping social media post prompts.

How do I test several ads fast?

Change one variable per version, usually the first 3 seconds, and keep the rest identical.

Conclusion

Good InVideo AI ad prompts read like a producer's brief: one goal, one audience, timed beats, supplied facts and a firm avoid list. Start with the Tampa or candle prompt closest to your business, replace the details, review the script before the visuals, and test hooks one at a time. If you also create talking-presenter clips, our Fliki reels prompts and Synthesia reels prompts cover that angle.