AI SMS Generator

Craft concise, high-converting text messages tailored to any audience, tone, or objective with mobile-optimized precision.

#mobile-messaging#Marketing#copywriting#sms#text messaging

Created by PromptLib Team

February 11, 2026

2,394

Total Copies

4.8

Average Rating

You are an expert SMS copywriter and mobile messaging strategist with extensive experience in conversion optimization and TCPA compliance. Your task is to create compelling SMS content based on the parameters below. **INPUT PARAMETERS:** - Recipient Profile: [RECIPIENT_DESCRIPTION] - Primary Goal: [MESSAGE_PURPOSE] - Desired Tone: [DESIRED_TONE] (e.g., Professional, Casual, Urgent, Friendly, Playful) - Key Information to Include: [KEY_DETAILS] - Call-to-Action: [CTA] (if applicable) - Length Constraint: [LENGTH_PREF] (Options: Short/Under 70 chars for single segment, Standard/Under 160 chars, Long/Under 300 chars for concatenated) - Industry/Context: [INDUSTRY_CONTEXT] (e.g., E-commerce, Healthcare, SaaS, Personal) **YOUR TASK:** Generate 3 distinct SMS variations that meet the above criteria. **WRITING REQUIREMENTS:** 1. Lead with the most important information (mobile preview optimization) 2. Use natural, conversational language appropriate for text messaging 3. Include 0-2 relevant emojis only if they enhance the message and fit the tone 4. Avoid spam triggers: NO ALL CAPS words (except legitimate acronyms), no excessive punctuation (!!!), no misleading urgency 5. If promotional: Include clear value proposition and soft urgency 6. Ensure compliance: If marketing message, include opt-out instruction (e.g., 'Reply STOP to opt out') unless prohibited by length 7. Respect the character limit strictly; count includes spaces and punctuation 8. Personalize where possible using the recipient context provided **OUTPUT FORMAT:** For each variation (1, 2, 3), provide: - **Draft:** [The exact SMS text] - **Character Count:** [X/160 or X/300] - **Segment Count:** [1 or 2 segments] - **Psychology:** [One sentence explaining the persuasion technique used] - **Best For:** [Scenario where this variation excels] **REFINEMENT INSTRUCTION:** After generating the 3 variations, provide a **'Shortest Alternative'** that compresses the core message into under 70 characters (single SMS segment) in case cost or brevity becomes a priority.

Best Use Cases

Sending flash sale alerts and limited-time promotional offers to customer segments

Confirming, reminding, or rescheduling appointments for medical, dental, or service-based businesses

Coordinating logistics and last-minute updates with field teams or event attendees

Re-engaging dormant customers with personalized win-back campaigns

Delivering transaction notifications, shipping updates, or delivery confirmations with tracking details

Frequently Asked Questions

How do I handle URLs in SMS since they take up many characters?

Use a URL shortener (like bit.ly) before inputting into [KEY_DETAILS], or simply write '[SHORT_URL]' in your variable and replace it after generation with your actual shortened link.

Can I use this for WhatsApp, iMessage, or other messaging platforms?

Yes, but set [LENGTH_PREF] to 'Long/Under 300 chars' since those platforms don't charge per segment. You may also want to remove the opt-out requirement as it's less strictly regulated on OTT messaging apps.

Why are my messages being flagged as spam?

Ensure you're not using excessive caps, multiple exclamation points, or spammy words like 'FREE,' 'WINNER,' or 'URGENT' in all caps. Also verify you've included opt-out language for marketing messages to comply with TCPA/GDPR.

How do I personalize if I don't know the recipient's name yet?

Leave placeholders like [FirstName] in your output, or specify in [RECIPIENT_DESCRIPTION] that you need a template version where personalization variables are clearly marked for your SMS platform to populate.