# RootFox

> Alex Vopilovskiy ("RootFox") builds products end to end - backend, frontend, infrastructure, integrations, and the edge cases that make software actually work. This site is his portfolio, his own tools, his games and his experiments; his CV and his hiring page live here too.

## Hiring

- [Hire me](https://rootfox.cc/hire-me/): what he is open to and how to get in touch.
- [CV](https://rootfox.cc/CV.pdf): the full CV as a PDF.
- [Cover letter](https://rootfox.cc/CL.pdf): as a PDF.
- [LinkedIn](https://www.linkedin.com/in/rtf6x) - [GitHub](https://github.com/rtf6x) - [YouTube](https://www.youtube.com/@rtf6x)
- Email: alex@rootfox.cc

## Tools

- [Frontend Auditor](https://rootfox.cc/tools/frontend-auditor/): Lighthouse, Core Web Vitals, meta, favicons and HTML validity in one audit.
- [OG Preview](https://rootfox.cc/tools/og-preview/): how a link preview looks on X, Facebook, LinkedIn, WhatsApp and Discord - straight from its OG tags.
- [HTML Validator](https://rootfox.cc/tools/html-validator/): check HTML by URL, file or pasted source, powered by the W3C Nu checker.
- [Favicon Checker](https://rootfox.cc/tools/favicon-checker/): what favicons a site declares, what loads, and what is missing.
- [CV Analyzer](https://cv.rootfox.cc/): ATS review of a CV - platform scores, profile extraction, and prioritized fixes.
- [Planning Poker](https://rootfox.cc/tools/planning-poker/): Scrum planning poker - share a room link, reveal every vote, no signup.
- [Password Generator](https://rootfox.cc/tools/pwd-gen/): fast, secure, crypto-grade random passwords in the browser.
- [Image Convert](https://rootfox.cc/tools/image-convert/): lossless WebP, max-quality JPEG, and PNG when alpha is present - in the browser.
- [Vectorizer](https://rootfox.cc/tools/vectorizer/): trace PNG, JPG or WebP into a clean SVG in the browser; nothing uploads.
- [Darkroom](https://rootfox.cc/tools/darkroom/): RAW photo editor in the browser (Sony ARW, Canon CR2/CR3); decoding, tone and color run locally.
- [Epoch Converter](https://rootfox.cc/tools/epoch-converter/): Unix timestamps to dates and back, with a live world clock.
- [IP Whois](https://rootfox.cc/tools/ip-whois/): geolocation and network details for any IP address.
- [DIG Whois](https://whois.rootfox.cc/): DNS records and WHOIS data for any domain.
- [Steam Inventory Info](https://rootfox.cc/tools/steam-items/): analyze Steam inventory items and their values.
- [UI Kit](https://rootfox.cc/tools/ui-kit/): the UI kit this site is built from.

## Projects

- [Foxling](https://foxling.rootfox.cc/): personal assistant in Telegram - reminders, memory and calendar in your own words. [Bot](https://t.me/foxling_bot)
- [Ping-Pong](https://ping-pong.rootfox.cc/): keeps the balance in a friendship - who was invited for a walk, who wrote first.
- [InstaFox](https://insta.rootfox.cc/): personal photography portfolio with an Instagram-like gallery.
- [FoxFamily](https://family.rootfox.cc/): interactive family-tree visualization.
- [Notepad](https://notepad.rootfox.cc/): personal notes app with a vintage macOS feel - Go, MongoDB and Svelte.
- [Chat](https://chat.rootfox.cc/): global realtime chat - no signup, no database.
- [VChat](https://vchat.rootfox.cc/): mesh video chat - no signup, just open a room and talk.
- [Rock-Paper-Scissors](https://rps.rootfox.cc/): online multiplayer rock-paper-scissors.
- [MadNews](https://rootfox.cc/mad-news/): absurd headline generator.
- [Coub](https://coub.rootfox.cc/): a collection of favorite coubs.

## Open source

- [Tail MCP](https://github.com/rtf6x/tail-browser-mcp): an MCP server plus a browser extension that lets AI assistants drive your own logged-in browser. Local-only, no cloud backend.
- [Jev MCP](https://github.com/rtf6x/jev-mcp): an MCP server that gives coding agents a judge - twelve typed verdict tools returning the chosen option, the full distribution, and an action.

## Optional

- [Games](https://rootfox.cc/games/chess/): chess, helicopter, crack the code, fox story, mahjong, minesweeper, nonogram, piano hero, sudoku.
- [Experiments](https://rootfox.cc/experiments/cube/): cube, matrix, night toggle, traphole.
- [Funny](https://rootfox.cc/funny/certificate/): certificate, fast casino, Johnny Castaway, look generator, religion, scholastic pie.
- [History](https://rootfox.cc/history/): blues, IT, Porsche, Spitfire.
- [Interesting](https://rootfox.cc/interesting/march/): team, march, traphole player.
- [Android apps](https://play.google.com/store/apps/dev?id=8105937687770839554) - [iOS apps](https://apps.apple.com/rs/developer/aleksandr-vopilovskii/id6777188961)
- Full URL list: [sitemap.xml](https://rootfox.cc/sitemap.xml)

## Notes

- `/analyses/` is disallowed for crawlers in [robots.txt](https://rootfox.cc/robots.txt).