MaxStock Pro: AI Metadata Generator for Stock Photo Contributors

Syed Mustafa — Thu, 08 Oct 2026 22:09:35 +0000

MaxStock Pro turns hours of manual metadata writing into a 30-second batch job — without asking you to give up control.

Why Contributors Use MaxStock Pro
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3 **AI providers: Groq (Llama 4), OpenAI (GPT-4o), Gemini (3.5 Flash) — switch any time, no vendor lock-in

Bulk generation: Upload up to 50 images per batch; a 50-image batch finishes in 4–7 minutes

SEO-optimized output: Titles front-load buyer search phrases; keywords ordered by search importance; categories match each platform’s official list
Platform CSV export: Export metadata in the exact column layout Shutterstock, Adobe Stock, Vecteezy, or Freepik expect — no manual reformatting needed

How It Works in 4 Steps
Paste API key — Drop in a key from Groq, OpenAI, Gemini, or xAI. Or upload a keys.txt file with many keys for auto-rotation
Pick mode & platform — Choose SEO Friendly, SEO Boost, Fast, Thinking, or Custom. Then pick Shutterstock, Adobe Stock, Vecteezy, or Freepik
Upload images — Drag in JPG, PNG, or WEBP files. The AI analyzes each image and sends it to your AI provider

Review & export CSV — Edit any field in the live preview table, then download a CSV formatted for your platform’s bulk uploader
Why Contributors Choose MaxStock Pro

No backend, no signup: Your keys and images stay on your device. The metadata generator has no server, no database, and no analytics
Bulk generation: Upload up to 50 images per batch; a 50-image batch finishes in 4–7 minutes

Platform-aware CSV: Each platform has its own column layout, category list, and field names — MaxStock Pro formats the CSV automatically based on your selection

Free to use: You bring your own API key from Groq, OpenAI, or Gemini and pay those providers directly. Groq and Gemini both offer free tiers that cover hundreds of images per day
Supported Platforms

Shutterstock: Title, Description, Keywords, Category 1 & 2, Editorial flag
Adobe Stock: Title, Keywords, Category. Adobe-specific category list included

Vecteezy: Title, Description, Tags, Category. Vecteezy’s 21 categories mapped

Freepik: Title, Description, Keywords, Category. 19 Freepik categories supported

**FAQ
**Where does my API key go? Your key is stored only in your browser’s localStorage on your device. MaxStock Pro has no backend, no database, and no analytics — the only network requests are the ones you make directly to OpenAI, Groq, or Gemini.

Which AI provider should I pick? For free or near-free runs, use Gemini Flash (generous free tier at ai.google.dev) or Groq (free tier with Llama 4 vision models). For best-quality titles use OpenAI gpt-4o-mini — it costs a fraction of a cent per image.

Do I need to install anything? No. MaxStock Pro is a pure static website — the “app” is a single HTML page with JavaScript. Add it to your home screen or pin the tab. There is also a MaxStock Pro Chrome extension that auto-fills the Shutterstock submit page.

Which file types can I upload? JPG, PNG, and WEBP. Files are downscaled to a maximum of 1600px on the long side and converted to JPEG before being sent to your AI provider. The original full-resolution files never leave your device.

How many images can I process at once? The dashboard supports up to 50 images per batch in the browser. The Chrome extension supports up to 80 assets per run on the Shutterstock submit grid. There is no hard daily limit — you’re limited only by your AI provider’s rate limits and your own patience.

How long does a batch take? About 5–8 seconds per image end-to-end, depending on the provider. Gemini Flash and Groq are the fastest. A 50-image batch typically finishes in 4–7 minutes.
Why MaxStock Pro Stands Out
Three things differentiate MaxStock Pro from other tools:

The system prompt is tuned specifically for each stock platform’s category list and CSV layout
You process entire batches at once instead of pasting images one at a time
The exported CSV has the exact column order your platform’s bulk uploader expects
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“I used to spend 2 hours a day writing titles and keywords. With MaxStock Pro I batch 200 uploads in under 15 minutes — and the keywords are actually better than what I was writing by hand.” — Sarah R., Shutterstock contributor**

Getting Started
Visit MaxStock Pro
Paste your API key from Groq, OpenAI, or Gemini
Pick a mode and platform
Upload your images and generate metadata in bulk

“Free to use. You bring your own API key. No signup required. The marginal cost of sharing it is zero (it’s a static site with no backend), and the AI provider you pick handles all the actual work.”

DEV Community: Syed Mustafa

MaxStock Pro: AI Metadata Generator for Stock Photo Contributors