Tools
Live answers.
No friction.
Small live-answer utilities — about your context (the weather where you are, what your browser sends, your public IP, the time on your device) or about a target you type in (DNS records for a domain, ASN details for an IP). No ads, no pop-ups, no signup walls.
Weather
Current conditions, hourly forecast, 7-day outlook, and active severe-weather alerts. Powered by the National Weather Service. US only.
Open →Time & Timezones
Your live local time and UTC side by side, a world timezone map showing where you sit on the globe, and a plain-English guide to UTC and daylight saving time.
Open →My IP Address
Your public IP address with a one-click copy button — plus plain-English background on what an IP address is, how it's used, the privacy tradeoffs, and the difference between IPv4 and IPv6.
Open →My Browser
Everything your browser tells the websites it visits — name, engine, OS, screen, capabilities, raw user agent — plus a short history of how the modern browser came to be.
Open →DNS Lookup
A, AAAA, MX, TXT, NS, CNAME, SRV, and CAA records for any domain — resolved live in your browser via DNS-over-HTTPS, with structured SPF and DMARC explainers.
Open →IP ASN Lookup
ASN, ISP, country, prefix, regional registry, and reverse PTR for any IP address. Pre-filled with your public IP; sourced from RIPE Stat with a Team Cymru fallback.
Open →Text Encoding Inspector
Paste any string and see every character broken down into code points, UTF-8 bytes, UTF-16 code units, grapheme clusters, and source-code escapes. Hover linkage between bytes and characters. Sample chips for the canonical encoding gotchas (mojibake, ZWJ emoji, surrogate pairs, invisible characters). Pure in-browser computation — the pasted text never leaves the page.
Open →JSON Formatter
Paste JSON and see it pretty-printed, validated with line:col error pointers, and explorable as a collapsible tree. JSONPath queries, schema inference, lenient parsing for trailing commas / single quotes / unquoted keys / comments, and structural diff. Pure in-browser computation — the pasted JSON never leaves the page.
Open →Regex Tester
Test JavaScript regular expressions live. Type a pattern and a test string — matches highlight in place as you type, capture groups get distinct colors, every metacharacter gets a plain-English explanation, and replace mode previews the rewritten string. Common-pattern presets for email, URL, IPv4, ISO date, US phone, and hex color. Pure in-browser computation — nothing leaves the page.
Open →Markdown Previewer
Paste Markdown and see it rendered live, side by side. Switch between CommonMark, GitHub Flavored Markdown, and GitLab Flavored with one click; copy the resulting HTML; check syntax against a built-in cheat sheet; track word count, reading time, and headings. Pure in-browser computation — the source never leaves the page.
Open →WHOIS Lookup
Registrar, registration and expiration dates, nameservers, and EPP status flags for any domain — resolved live in your browser via RDAP, the modern JSON successor to port-43 WHOIS. Plain-English explainers for every status code, and a callout explaining ICANN's post-GDPR redaction policy.
Open →