13 genuinely useful, independently-run websites that complement what TechToolsCenter does — free file transfer, uptime checkers, WHOIS lookup, fact-checking and free learning. No fabricated ratings, no affiliate padding — every entry is a real site we'd actually recommend.
Check facts, trace an image's origin, or see what a webpage looked like in the past.
web.archive.org
The Internet Archive's tool for viewing historical snapshots of almost any webpage — free, no account needed.
www.snopes.com
One of the longest-running fact-checking sites — investigates viral claims, rumors and misinformation.
tineye.com
Reverse image search — upload or paste an image URL to trace where it appears online or find the original source.
Send large files to someone without needing a shared drive or an account on both ends.
Check whether a website is actually down, test your connection, or look up who owns a domain.
downforeveryoneorjustme.com
Paste a URL and it checks the site from an outside server — tells you if it's down for everyone or just you.
www.speedtest.net
The standard free internet speed test — download, upload and ping, run from servers near you.
lookup.icann.org
ICANN's own free WHOIS lookup tool — official registration data for any domain name, straight from the source.
Structured, genuinely free courses outside of coding — for that, see our Developer Hub's Learning section instead.
www.khanacademy.org
Free courses and practice exercises spanning math, science, economics and more, for all ages.
ocw.mit.edu
Free lecture notes, exams and video lectures from real MIT courses, published openly since 2001.
www.duolingo.com
Free, gamified language-learning app covering 40+ languages, with an optional paid ad-free tier.
Lightweight, genuinely free-to-start places to jot notes or track tasks when you don't need a full app.