Free browser, network, and developer tools
Fast, privacy-respecting utilities that run in your browser — IP checker, JSON formatter, UUID generator, browser diagnostic, and more. No sign-up required.
ToolPage is a free collection of small, fast utilities for the everyday network, browser, and developer jobs that don't deserve a whole app — check your public IP, format a chunk of JSON, generate a UUID or a QR code, or test your microphone before a call. Each tool lives on its own page, loads instantly, and works just as well on a phone as on a desktop.
There's no sign-up, no paywall, and nothing to install. The tools that touch sensitive data — password strength, microphone, camera — do all their work inside your browser and upload nothing. Pick a category below, or start with the most popular tools.
Most popular tools
Our deepest tools — a good place to start.
Network Tools
Free tools for checking your IP, looking up DNS records, measuring latency, and estimating your connection speed — all running in your browser.
Browser & Device Tools
Free tools for checking what your browser is, what it can do, and whether your camera, microphone, and screen are set up correctly.
Developer & Utility Tools
Free utilities for working with JSON, UUIDs, text diffs, QR codes, and passwords — all running in your browser without sign-up.
Why use ToolPage
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No sign-up
Every tool works the moment the page loads. No accounts, no paywalls.
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Privacy-respecting
Sensitive tools — password strength, mic, camera — run entirely in your browser. Nothing is uploaded.
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Fast on mobile
Each tool is a single page, built to load instantly on any connection.
Frequently asked questions
Is ToolPage free to use?
Yes — every tool is free, with no account, no trial, and no paywall. The site is supported by unobtrusive ads, not by charging for the tools.
Do I need to sign up or install anything?
No. There are no accounts and nothing to download. Open the page for the tool you need, use it, and close the tab — that's the whole flow.
Do the tools work on a phone?
Yes. Every page is built mobile-first and works in iOS and Android browsers without any extra setup. The camera and microphone tools use your phone's built-in hardware through the browser.
Is my data private?
The tools that handle sensitive input — password strength, microphone, and camera — do all their work in your browser and upload nothing. Tools that need a server to answer (like the IP checker) say exactly what is sent on their own page. See our privacy policy for the full detail.
Who makes ToolPage, and can I suggest a tool?
ToolPage is built and maintained by AI Regenesis Ltd. If there's a tool you'd like to see, the contact details are on our about page — suggestions are welcome.
Latest guides
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What does your IP address actually reveal about you?
An honest accounting of what an IP address actually tells anyone who sees it — and what the marketing around "IP tracking" gets wrong.
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How DNS records work — A, AAAA, MX, TXT, and CNAME in plain English
A practical tour of DNS record types — what each one is for, how TTLs and caching behave, and why propagation takes the time it does.
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UUID v1, v4, v7, v8: which version should you use?
An opinionated tour of the UUID versions — what each one does, when it's the right tool, and where each one bites you.
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Why your JSON is invalid: a field guide to common parse errors
A taxonomy of the seven categories of JSON parse error, the actual fixes for each, and why your editor's red squiggle isn't enough.
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Reading ping results: latency, jitter, and packet loss explained
Latency is what people mean when they say "lag" — but jitter and packet loss break things that latency alone wouldn't.
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Why every speed test gives you a different number
Three speed tests in a row will give you three different numbers. Here's why — and which one is actually telling you what you want to know.