LIVE SANDBOX — real Cloudflare Workers + R2 + D1 + Workers AI + Vectorize checking...
LIVE BACKEND — NOT SIMULATED

Your own sandbox, running on Cloudflare.

Upload any images you like. Workers AI auto-captions them. Vectorize indexes them. Then search with natural language and see real latency, real results, on real Cloudflare infrastructure. Your session is isolated — only you see your uploads.

Workers AI
Llava 1.5 + BGE embeddings
Auto-caption + 768-dim vectors
Read the docs →
R2
Zero-egress object storage
Every uploaded image
Read the docs →
D1
Serverless SQL
Metadata + captions
Read the docs →
Vectorize
Cosine similarity search
Per-session isolated
Read the docs →

1. Upload your designs

Drag & drop, or click to pick files. They'll be captioned by Workers AI and indexed in real time.

Session:
Drop images here
or click to browse — JPG, PNG, WebP up to 10MB

2. Your gallery

0 designs indexed

3. Search with natural language

Describe the mood, style, or occasion. Workers AI embeds your query and Vectorize finds the closest matches.

API Explorer

Try it — real requests

Everything above is powered by this live API — running as Cloudflare Pages Functions on the same domain as this page. Click any endpoint to try it live.

POST https://robinhood-sandbox.pages.dev/api/upload # multipart form data — use the drop zone above

Developer resources

Everything you need to build on Cloudflare — docs, tutorials, pricing, and sample code.

All CF docs →

Workers AI

Serverless GPU inference at the edge

Used in this sandbox
Overview & getting started Model catalog (60+ models) Llava 1.5 (vision model we use) BGE-base (embedding model we use) Pricing

R2

Object storage with zero egress fees

Used in this sandbox
Overview & getting started Workers API (how we use R2) S3-compatible API Migration from S3 Pricing (zero egress)

D1

Serverless SQL database

Used in this sandbox
Overview & getting started Workers API SQL reference Import / export data Pricing

Vectorize

Vector database for semantic search

Used in this sandbox
Overview & getting started Create indexes Metadata filtering (session isolation) RAG tutorial (end-to-end) Pricing

Pages & Functions

Full-stack deployment platform

Hosting this sandbox
Pages overview Functions (the API you see here) Bindings (R2, D1, Vectorize, AI) Git integration

Workers

Serverless compute at the edge

Explore next
Workers overview Get started in 60 seconds Examples & templates Workers for Platforms (multi-tenant)

Recommended learning paths

Build on Workers
Zero to production in one sitting
Build RAG with Workers AI
Workers AI + Vectorize + D1 (like this sandbox)
Migrate to R2
Save on S3 egress fees
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GitHub
workers-sdk
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Engineering posts