About ToolBox
2954+ free online tools — no signup, no ads, no limits.
What is ToolBox?
ToolBox is a free collection of over 2954 online tools that help you convert, calculate, format, and generate — all from your browser. Every tool works instantly, requires no account, and respects your privacy by processing data client-side whenever possible.
What Tools Are Available?
Why ToolBox?
Free forever. Every tool is free to use. No premium tiers, no limits, no "upgrade to unlock" gates.
No signup required. Just open a tool and use it. No email, no password, no account needed.
Privacy-first. Tools run in your browser. Your data stays on your device. We don't track what you convert or calculate.
Fast and clean. No ads, no popups, no cookie banners. Tools load instantly and work immediately.
Comprehensive. Instead of visiting 10 different sites, ToolBox has everything in one place — from unit converters to developer tools to financial calculators.
Who is ToolBox For?
Students use our math, science, and statistics calculators for homework and exams.
Developers use our JSON formatters, Docker generators, regex builders, and encoding tools daily.
Engineers use our structural, electrical, mechanical, and construction calculators for professional work.
Designers use our color tools, typography calculators, and image utilities for design projects.
Everyone uses our unit converters, file converters, health calculators, and financial tools for everyday tasks.
Built with Care
Every tool on ToolBox uses verified formulas and standard algorithms. Unit converters use official conversion factors. Calculators are tested against known values. We prioritize accuracy over speed-to-market.
Open for Feedback
Found a bug? Need a tool we don't have? Have a suggestion? We're always improving. ToolBox grows based on what people actually need.