About FreeToolPark
FreeToolPark is a growing library of free online tools that run entirely in your browser. No signups. No input tracking. No paywalls. Just tools that work.
What makes us different
- ✓Everything runs client-side. Your inputs never touch our servers.
- ✓No account required. Every tool works instantly, with no sign-up wall.
- ✓No hidden paywalls. All tools are free, with no "pro" tier.
- ✓Works offline after first load. Bookmark any tool and keep using it on the subway.
Our mission
Most online tool sites have gotten worse over the last decade. They track every keystroke, require accounts for basic functionality, bury useful features behind upsells, and stuff the page with pop-ups.
FreeToolPark is the opposite. We believe a mortgage calculator should not need your email. A JSON formatter should not send your code to a server. A password generator should absolutely never log its output.
So we built a tool site that does none of those things. Every calculator, converter, generator, and formatter here runs entirely in your browser using client-side JavaScript. You can open your browser's Network tab and confirm for yourself that your data never leaves your device.
What you will find here
We currently host 60+ tools across six categories, plus hundreds of dedicated unit conversion pages:
- Calculators for finance, health, and math
- Developer tools like JSON formatter, regex tester, base64 encoder
- Text tools for writers, editors, and students
- Converters for units, number bases, and data sizes
- SEO tools for meta tags, sitemaps, and keyword analysis
- Generators for passwords, UUIDs, QR codes, and placeholder content
How we make money
At the time of writing we do not run ads. When we do, it will be non-intrusive display ads via standard networks, placed so they never interfere with using the tool.
Ad networks will never see your tool inputs. They only know which page you visited, not what you typed into it. Our Privacy Policy explains exactly what is and is not collected.
Accuracy and methodology
Our financial calculators use the same formulas banks, lenders, and financial planners use. You can read the exact formulas and assumptions on our Methodology page. Financial and tax tools are estimates and should not replace advice from a qualified professional for life-changing decisions.
Who builds this
FreeToolPark is built by a small independent team. We write every tool by hand, verify the math, and test on real devices. We do not outsource content generation, and every calculator is reviewed before it ships.
Have feedback, spotted a bug, or want to suggest a tool? We want to hear from you. Reach us at sushi@freetoolpark.com or through the contact page.
Request a tool
Not seeing a tool you need? Let us know. We prioritize the build queue based on reader requests.