# Free browser and proxy tools > Free, private browser tools from Mosaic: a fingerprint test, WebRTC leak test, proxy checker, cookie converter and more. Each runs in your browser. Source: https://mosaicbrowser.com/tools ## Free browser and proxy tools Small, honest tools for the things an anti-detect browser is about: what a website can read about you, whether your IP and your clock agree, and whether a proxy is alive. Each one answers on the page. Most run entirely in your browser; the few that need the network say so, keep nothing, and log no request bodies. ### Browser fingerprint test Every value a page can read about your browser and computer, grouped and checked for the contradictions detectors look for. ### WebRTC leak test Gathers the IP addresses WebRTC can expose and compares them with the address your HTTP traffic comes from. ### Proxy checker Paste HTTP, HTTPS or SOCKS5 proxies and check reachability, the exit IP, its country and the network owner. ### What is my IP Your public IP, its ASN and owner, country and city, and whether its timezone matches your browser clock. ### User-agent parser Parse any user-agent string into browser, version, engine, OS and device — and flag the parts that contradict. ### Timezone & IP checker Compares your browser timezone and locale with your IP’s location — the exact signal consistency detectors read. ### Cookie converter Convert cookies between Netscape cookies.txt, JSON and the header form — in your browser, nothing uploaded. ### Proxy list formatter Clean a messy proxy list: normalise, dedupe and convert between host:port:user:pass and user:pass@host:port. ### Canvas fingerprint hash Render a 2D canvas the way trackers do, hash the pixels, and see the value that identifies your machine. ### JA3 / TLS fingerprint What a JA3/JA4 TLS fingerprint is, what a server reads from your handshake, and what a browser can and cannot show. **How these work.** Tools marked *runs in your browser* never send what you type anywhere — the work happens on your machine. Tools marked *runs partly on our server* need the network to see your exit address or reach a proxy; the server keeps only aggregate counters, logs no request bodies, and anything you paste is used for that one request. Use a test credential where you can. ## One reading is a fact, not a verdict These tools show you what a site sees. What a site *does* with it is its own call, and it changes site to site. So read them as evidence — your timezone is one place, your IP is another — never as a score that says you are safe. For the long version, the [guides](https://mosaicbrowser.com/guides) and the [glossary](https://mosaicbrowser.com/glossary) explain each surface. ### Do these tools store what I enter? No. The tools that work in your browser never send what you type anywhere. The few that need the network — the proxy checker, and anything that reads your exit IP — keep only aggregate counters, log no request bodies, and use anything you paste for that one request. Use a test credential where you can. ### Are the tools free? Yes, all of them, with no account and no sign-up. They are here because they are useful, and because the questions they answer are what Mosaic is built around. ### Does a clean result mean a site will let me in? No, and no tool can tell you that. These show what a site can read about you; what a site decides to do with it is its own call and differs site to site. Read a result as a fact — your timezone is one place, your IP is another — not as a verdict. ### What does Mosaic have to do with them? Mosaic is a local-first anti-detect browser: it gives every account its own fingerprint, proxy exit and cookies, and keeps them consistent so they are not tied together. The tools measure the same things Mosaic sets per profile. ## Every account its own browser. One price for all of them. Free holds 3 profiles and 10 profile creations, with no card. Pro is $49 a month for any number, or $490 a year with 2 months free. Try it for 14 days; cancel before day 14 and you pay nothing. Mosaic is a desktop app Email yourself the link and open it on your computer.