About ToolsHub

What this is

ToolsHub gathers the small utilities you reach for constantly — formatting JSON, decoding a JWT, checking DNS or an SSL certificate, estimating an LLM bill, building a résumé — into one fast, clean site. No sign-up, no paywall on the useful bits, no watermark on your downloads.

Why it's different

• Private by default. Most tools run entirely in your browser. Your JSON, tokens, secrets, and résumé never reach our servers — unlike many popular alternatives that upload everything you paste.
• Genuinely free. The Resume Builder gives unlimited PDF and DOCX downloads with no watermark and no account, which most builders charge for.
• Fast and focused. Every tool is one page that does one job, with no tutorial wall in front of it.
• Honest. Where a result is an estimate or a heuristic, we say so instead of dressing it up as certainty.

What's inside

• Resume — an ATS-friendly résumé builder with live preview and PDF/DOCX export.
• Developer — a full JSON suite (format, validate, diff, tree view, convert, repair, JSONPath, TypeScript generation), a JWT suite (decode, encode, verify), plus encoders, hashes, regex, UUIDs and more.
• Networking — IP, DNS, WHOIS, SSL, HTTP headers, port checks, email validation.
• Calculators — AI/LLM cost, tokens, GPU, latency and ROI.
• AI — summarizing, rewriting and explaining code.
• Learn — short, practical guides to the concepts behind the tools.

Support the site

ToolsHub is supported by advertising. If you find it useful, the best thanks is sharing it with someone who'd use it. See our Privacy Policy for how ads and cookies work here.

Get in touch

Found a bug, or want a tool added? Contact us — suggestions are genuinely welcome.