Simulate Your Instagram Posts with AI

InstaVibe Simulator is an AI-powered creative tool that lets you preview exactly how your photos would look and perform on Instagram — before you post. Upload your images and get instant AI-generated captions, hashtags, estimated likes, realistic comment threads, and a full audience breakdown with gender split, age heatmap, top countries, and interest clusters.

A built-in time slider lets you simulate how your post's engagement grows over time — from 1 minute to 1 week after publishing — based on a realistic, front-loaded growth curve calibrated to your content type. Whether you're a content creator, social media manager, or just curious about your photo's potential, InstaVibe gives you the deep engagement analytics and actionable insights to craft better posts and maximize reach.

Screenshots

App Screenshots

Screenshot of Reloadium InstaVibe Simulator (light)

Screenshot of Reloadium InstaVibe Simulator on mobile (light)

Key Features

Multi-Image Upload

Upload one or multiple photos and get a complete Instagram post simulation including captions and hashtags tailored to your images.

Realistic Comment Threads

AI generates authentic-sounding comments with replies, likes, and engagement patterns based on your content and audience settings.

Engagement Insights

Receive actionable suggestions to improve your post's reach, timing, and audience interaction specific to your content.

Audience Demographics

See a full breakdown of who interacts with your post: gender split per interaction type, age-by-interaction heatmap, top countries, and top interest clusters.

Profile Customization

Set your username, follower count, audience description, and privacy settings for more accurate, personalized simulations.

Simulation History

Browse and reload past simulations stored locally in your browser — your data never leaves your device.

Time Simulation Slider

Drag a slider to see how likes, comments, and reposts accumulate from 1 minute to 1 week post-publish — based on a realistic, front-loaded growth curve shaped to your content type.

Caption & Hashtag Generator

Get creative, on-brand captions and relevant hashtags automatically generated from your images and profile context.

How It Works

1

Upload Your Photos

Drag and drop or select one or more images you want to simulate as an Instagram post.
2

Customize Your Profile (Optional)

Set your username, follower count, and audience description so the AI tailors the simulation to your actual account.
3

AI Analyzes & Simulates

Gemini AI analyzes your images and generates a realistic Instagram post — caption, hashtags, estimated likes, comment threads, engagement suggestions, and a full audience demographics breakdown.
4

Explore, Rewind & Iterate

Drag the time slider to watch your predicted likes, comments, and reposts grow from 1 minute to 1 week. Load more comments, reset, or try different images to refine your content strategy.

Perfect For

Content Creators

Preview how your posts will be received before publishing. Optimize captions and hashtags to maximize reach and engagement.

Social Media Managers

Quickly simulate posts for clients to set realistic expectations on engagement and get AI-generated copy suggestions.

E-commerce & Brands

Test product photography and promotional content to see which images and captions resonate best with your target audience.

Students & Learners

Understand Instagram engagement patterns and learn what makes content perform well — powered by AI analysis.

Influencers & Personal Brands

Analyse how different photo styles and captions shift your predicted audience demographics — gender, age group, and interest clusters — before committing to a direction.

Photographers

Compare how different shots from the same session would perform on Instagram and pick the one with the highest predicted engagement.

Digital Marketers

A/B test creative concepts without publishing anything. See predicted reach, interaction breakdown, and audience split for each variant.

Powered by Advanced AI

InstaVibe Simulator is powered by Google Gemini's multimodal AI, which analyzes the visual content, mood, and aesthetic of your images to generate contextually accurate Instagram simulations.

Google Gemini multimodal AI for image understanding and natural language generation
Secure /api/hello proxy — your API key is never exposed in the browser
Firebase Authentication for secure, personalized access
IndexedDB (via idb) for private, local simulation history storage
React 19 + Tailwind CSS v4 for a fast, responsive experience

Privacy & Data

InstaVibe Simulator is designed with privacy in mind. Your images and data are handled responsibly and never used beyond generating your simulation.

Your uploaded images are sent to the AI only to generate the simulation and are not stored on our servers
Simulation history is stored locally in your browser using IndexedDB — only you can access it
Firebase Authentication handles sign-in securely — we never store plain-text passwords
No personal data is sold or shared with third parties

Frequently Asked Questions

Is there a built-in AI assistant?

Yes — every Reloadium app has a built-in agentic AI assistant. It's not just a chatbot: it can perform any task the app offers on your behalf. Click the chat icon to open it, describe what you need in plain language, and the AI takes care of the rest. You can also attach images or documents for analysis. Your conversation history is saved locally across sessions. No account or extra setup needed.

How does InstaVibe Simulator work?

You upload photos and the AI analyzes their visual content to generate a realistic Instagram post simulation — including captions, hashtags, comment threads, engagement metrics, and a full audience demographics breakdown.

What does the audience demographics breakdown include?

For each simulation you get: gender split (♂/♀) per interaction type (likes, comments, reposts, shares, saves, skips), an age-by-interaction heatmap across five age groups, the top countries reaching your post, and the interest clusters your content attracts.

Does it actually post to Instagram?

No. InstaVibe Simulator is a creative planning tool. It simulates what your post might look like and how it might perform without ever connecting to your Instagram account.

Can I customize the simulation for my account?

Yes. In the Profile Settings panel you can set your username, follower count, audience description, and account privacy to get more tailored and realistic results.

Where is my simulation history stored?

Simulation history is stored locally in your browser using IndexedDB. Nothing is sent to any external server — your data stays on your device.

What is the time simulation slider?

After generating a simulation, a time slider appears below the post. Drag it from '1m' to '1w' to see how predicted likes, comments, and reposts accumulate over time — based on a realistic, front-loaded growth curve. Instagram engagement is typically 25–30% in the first hour and ~85–90% by 24h, so the curve reflects that, not a simple linear ramp.

Can I load more comments?

Yes. After the initial simulation, click 'Load more comments' to generate additional authentic-sounding comments up to the estimated total comment count.

Do I need an account to use InstaVibe?

No account is required to try it. However, signing in with a Reloadium account lets you use credits for unlimited simulations and access your history across devices.

From Our Blog

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Launch InstaVibe Simulator