About the Zoo

UFOZoo is a browser-based hardware testing lab. Dead pixels, stick drift, keyboard chatter, mic noise, refresh rate, polling rate: the Zoo puts every artifact through its paces without you installing a single program. Open a page, run the test, get an answer.

Beyond the test benches, the collection also holds everyday utilities: converters, calculators, and coding helpers. The hardware wing is the heart of the Zoo; the rest are exhibits collected along the way.

The Zoo is a work in progress. New artifacts are added regularly, and existing ones are repaired when visitors report them misbehaving.

UFOZoo organizes its artifacts into wings, each dedicated to a different kind of work:

• Hardware Tools: Keyboard and key rollover testers, mouse testers for double-click and chatter, gamepad and stick-drift checks, dead pixel and refresh rate tests, speaker, microphone and webcam checks, CPU and GPU benchmarks.
• AI Tools: AI model databases, tokenizer counters for GPT/Claude/Llama, prompt testers, and embedding visualizers for machine learning practitioners.
• Text Tools: Lorem ipsum generators, character counters, case converters, markdown previewers, and text diff tools for content editing and proofreading.
• Life Tools: Unit converters, world clocks, password generators, QR code creators, and random name pickers for everyday tasks.
• Design Tools: Color palette generators, contrast checkers, CSS gradient builders, SVG optimizers, and favicon converters for UI/UX designers.
• Dev Tools: Hash calculators (SHA-256, MD5, BLAKE3, and 20+ algorithms), JSON/XML/SQL formatters, code minifiers, regex testers, Base64 and URL encoders, JWT decoders, and UUID generators.

Every test runs in your browser. When you check for dead pixels, your screen draws the test pattern. When you test a mouse, the Gamepad API reads the input. When you check a microphone, the browser's audio engine does the analysis: no server involved, no software to install.

The practical consequence: your input (passwords, API keys, source code, files) stays on your machine. There is no server processing it, no database storing it, and no third party to ask permission from. The browser sandbox is the only boundary your data ever crosses.

The site is built with Astro and delivered as static pages through Cloudflare's edge network, so every page loads without a backend round-trip.

Where applicable, our tools adhere to established technical standards: JSON processing follows RFC 8259, hash algorithms implement FIPS 180-4 (SHA-2) and FIPS 202 (SHA-3) specifications, encryption utilities comply with NIST SP 800-38A, and Base64 encoding follows RFC 4648. Hardware tests use the browser's native Web APIs (Gamepad, Keyboard, MediaDevices, and AudioContext), the same interfaces games and video tools rely on.

Running tools in the browser means there is nothing to collect from your inputs: they are processed in memory and discarded when you close the tab. The Zoo itself has no accounts and no analytics profiles tied to individuals. Some pages may show ads served by Google AdSense to support the site; see the Privacy Policy for details.

The only infrastructure involved is Cloudflare's CDN, which serves the static files and handles standard request logging. For the details, see the Privacy Policy.

Gamers deserve to know if their gear is broken before a ranked match, not after. The Zoo keeps its test benches open: anyone with a browser can check their hardware in any country, on any device, without paying a cent.

The long-term goal is a comprehensive hardware testing lab that covers every common input, display, and output device. Tools are added based on visitor feedback and what the field reports say people are actually searching for.

UFOZoo was started by a developer with over a decade of experience in web development, browser-based hardware testing, and performance optimization.

Found an artifact behaving strangely? Have a test request or a tool suggestion? Write to us: visitor reports are how the Zoo decides what to build next.

support@ufozoo.com