Explore our suite of client-side web tools for freelancers, developers, accountants, and network engineers. Zero tracking, zero server storage, and zero signups required.
JSON formatters, Base64 converters, JWT analyzers, URL encoders, and hash generators. 100% private in-browser computation.
PPF calculation, CAGR, compound interest, SIP growth, and loan EMI schedules with interactive charts.
Live traceroute maps, DNS propagation inspection, SSL certificate analyzers, simulated port checks, and bandwidth estimators.
Why millions of professionals rely on 99tools browser-based utilities every month.
Your invoices, calculations, passwords, and sensitive keys never touch external servers. Everything runs entirely inside your browser sandbox.
No paywalls, no credit cards, and no account creation. Open the tool, get the job done in seconds, and export your files watermark-free.
Export high-resolution vector PDFs, standard JSON configurations, or verified network reports ready for corporate audits.