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Vercel Experiments

Independent open-source playground for Next.js and Vercel platform experiments. Not affiliated with or endorsed by Vercel.

Experiments
122
Categories
8
License
MIT
Browse experimentsDeploy on VercelContribute on GitHub

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Featured experiments

Standalone apps you deploy or run locally to learn real platform patterns.

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AI
A/B Landing Copy Lab
AI generates two headlines, sticky cookie buckets assign A/B, and Redis/memory tracks impressions and conversions.
Intermediate25 minFeatured
Platform
Approval Workflow Lab
Draft - pending - approve/reject via opaque tokens. Neon/memory state machine with honest fallbacks.
Intermediate25 minFeatured
Security
Bot Protection Lab
Challenge and rate-limit gate before a mock expensive AI route, with honest BotID documentation limits.
Intermediate20 minFeatured
AI
Contract Clause Finder
Paste a short contract or upload a PDF - structured risk clauses, obligations, and dates table via generateObject.
Intermediate20 minFeatured

Fresh drops

Recently added

Newest published experiments from the full catalog.

Browse docs
AI
A/B Landing Copy Lab
AI generates two headlines, sticky cookie buckets assign A/B, and Redis/memory tracks impressions and conversions.
Intermediate25 minFeatured
Routing
A/B Testing Lab
Assign A/B variants via sticky cookie, log impressions and conversions in Redis or memory, and show conversion UI.
Intermediate20 min
AI
Accessibility Copy Fix
Paste UI/marketing copy - local heuristics plus AI rewrites for a11y issues.
Beginner15 min
AI
API Mock from OpenAPI
Paste an OpenAPI snippet - mock Next.js Route Handler stubs as downloadable text.
Intermediate20 min

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By category

Jump into networking, rendering, AI, security, and more.

AI

74 experiments

Routing

5 experiments

Platform

17 experiments

Security

6 experiments

Performance

4 experiments

Rendering

4 experiments

Developer Tools

8 experiments

Networking

4 experiments

Contribute

Build the next experiment

Each experiment ships as a standalone app with docs and a clear pattern you can reuse. Fork the repo, follow the contribution guide, and add something useful.

Contribution guideRead the docsOpen on GitHub

What makes a good experiment

  • Teaches one concrete platform pattern
  • Includes an interactive demo
  • Documents setup, limits, and tradeoffs