Tools
Practical tools, built and maintained by me, that anyone can use.
I've relied on free tools other people built for decades of my own work - this page, and everything on it, is a small way of paying that back.
Built here - free, no registration
Hosted on this site. Reports are private by default; sharing one is always an explicit, opt-in action.
AI Website Readiness Check
Enter a website address and discover what search engines, social networks, and AI crawlers can understand about it.
- ·Scores crawl access, content identity, content clarity, discovery, and sharing/trust out of 100
- ·Checks robots.txt, sitemap, and llms.txt reachability
- ·Explains every point awarded or lost, with specific fixes
Content Refresh Check
Submit a domain or sitemap and get a prioritized, evidence-backed list of pages that deserve another look.
- ·Flags stale pages, broken outbound links, and metadata problems
- ·Surfaces missing authorship and possible topic overlap
- ·Checks up to 50 pages per report, with a sample report and published methodology
Website Migration Check
Compare an old and new website after a move or redesign and catch mistakes before visitors and search engines do.
- ·Classifies redirects, chains, loops, and homepage catch-alls
- ·Diffs sitemap coverage and checks indexability on the new site
- ·Accepts a pasted old sitemap when the old site is already offline
From the R&D corner
Independent projects and products I've built or co-built outside this site. Availability varies - noted on each card.
FxCalculator.app
A currency calculator that converts and does math in the same step - type an expression in one currency and see the result across every currency you track, with live rates.
- ·Live FX rates for 160+ currencies, cached for offline use
- ·Inline calculator: +, ×, ÷, %, and parentheses in the active row
- ·No account, no ads, no tracking
The Ace
An AI assistant that answers questions about my professional background, aiming to be more entertaining than a static resume.
- ·LLM-agnostic - works with any underlying model
- ·Learns from visitor questions and remembers past conversations
- ·Click the icon in the corner of any page to open it
Cutdown.link
Short links and QR codes whose destination you can change after they are printed, shared, or scanned.
- ·Free forever: short links, QR codes, and a basic stats dashboard
- ·Pro: scheduling, pause/resume, branded QR codes, and traffic splitting
- ·Built for cases where the physical link or QR code can't be reprinted
LodyCDP
A customer data and analytics platform that surfaces real-time visitor journeys instead of next-day batch reports.
- ·AI-assisted discovery of the events worth measuring on your product
- ·Real-time journey and funnel analysis, no session replay
- ·Privacy-first: tracking requires explicit human approval
Aagee (formerly LaTechCraft)
A Vietnam-based technology cooperative I'm part of, offering staff augmentation, web app development, QA, and technology audits.
- ·Free initial consultation
- ·Experienced developers available for staff augmentation
- ·Accessibility-focused QA and independent technology audits
Sites Worth Visiting
A small, manually curated directory of independent websites I think are worth a visit - no ads, no submissions for sale.
- ·Hand-picked, not algorithmically generated
- ·Spans portfolios, tech services, and specialty products
- ·Free to browse, updated occasionally
