Convert Force Units Instantly Engineers, physics students, and machinists work with force in a baffling mix of units: newtons in SI papers, pound-force in US torque specs, kilogram-force in old European drawings, and dynes in CGS textbooks. The Force Unit Converter handles them all in one screen — change any value and every other unit ...
Try the Tool »Water & Liquid Tank Volume Calculator Calculate the total and partial-fill volume of any storage tank from a few simple dimensions. Pick the tank shape, type the dimensions in your preferred unit, and instantly read the capacity in liters, US and UK gallons, cubic meters, cubic feet, and US fluid ounces. The calculator also estimates ...
Try the Tool »Survey Sample Size Calculator Figure out how many people you need to survey to get reliable results. The Survey Sample Size Calculator turns Cochran’s formula into a one-click answer, supports finite populations with the appropriate correction, and shows a sensitivity table so you can see exactly how the requirement shifts as your margin of error ...
Try the Tool »A/B Test Statistical Significance Calculator Drop in the visitors and conversions for your Control (A) and Variant (B) and instantly see whether the difference between them is real or just noise. The calculator runs a two-proportion z-test, computes the p-value, the absolute and relative lift, and the confidence interval for the difference, then turns the ...
Try the Tool »Container Garden Planner & Spacing Calculator Plug in your pot size and the plant you want to grow, and instantly see how many will fit, how much potting mix to buy, whether the container is deep enough, and which neighbours will help (or hurt) your harvest. Built for balcony gardeners, apartment growers and tabletop herb ...
Try the Tool »Recipe Scale Calculator Halve a cookie recipe for a smaller batch, double a soup to feed a crowd, or convert a 4-portion family dinner into a 12-person dinner party. The Recipe Scale Calculator takes any ingredient list, multiplies every quantity by your serving ratio, and prints a clean, copy-ready scaled recipe — with smart fractions ...
Try the Tool »XML to CSV Converter Paste any XML document and convert its repeating records into a flat CSV file. The tool auto-detects the row element and the columns from element tags and attributes, previews the first 10 rows, and lets you download the full CSV — useful for migrating data out of legacy systems, exports, or ...
Try the Tool »Cocktail Measurement Converter Convert between bar and kitchen volume units in real time. Type a value into any field and every other field updates instantly — milliliters, centiliters, liters, fluid ounces, teaspoons, tablespoons, cups, pints, plus cocktail-specific pours like barspoon, dash, splash, pony, jigger, shot, and double. Designed for bartenders, home mixologists, and anyone who ...
Try the Tool »Break-Even Point Calculator Find out exactly how many units you need to sell before a product or service stops losing money. Enter fixed costs, variable cost per unit, and sale price per unit, and the calculator returns break-even units, break-even revenue, contribution margin, and a profit/loss table at volumes ranging from zero to twice the ...
Try the Tool »Character Frequency Analyzer Paste any text and instantly see how often every character appears. The Character Frequency Analyzer counts every letter, digit, or symbol, ranks them, shows percentages, and renders a visual bar chart so you can spot patterns at a glance. It is a go-to companion for cryptanalysis, linguistics homework, password audits, content audits, ...
Try the Tool »Access Log Formatter (Apache / Nginx) Paste raw Apache or Nginx access log lines and instantly turn them into a structured, sortable table. The Access Log Formatter detects whether each line is in the Common Log Format (CLF) or Combined Log Format (Apache’s default), then breaks every entry into clean columns: IP, date/time, method, path, ...
Try the Tool »Package.json Generator Create a valid package.json from a structured form instead of memorizing every field. Set the package name, version, license, module system (ESM or CommonJS), Node engine, scripts, and dependencies, and the tool produces a clean, properly ordered manifest you can drop straight into a project. Unlike a formatter that reshuffles an existing file, ...
Try the Tool »IPv4 to IPv6 Converter Convert any IPv4 address into every standard IPv6 representation in one click. The tool generates the IPv4-mapped form used by dual-stack sockets, the 6to4 prefix that delegates a /48 to a public IPv4, the deprecated IPv4-compatible form kept for legacy lookups, and the reverse DNS PTR record under ip6.arpa. Each result ...
Try the Tool »Java Properties File Formatter This tool formats Java .properties files using the same rules the JDK uses to load them. It accepts =, :, or whitespace as a separator, recognises both # and ! comment styles, and joins backslash continuation lines into clean single-line key/value pairs. Use it on application.properties, logback.properties, ResourceBundle messages_*.properties, or any ...
Try the Tool »CAGR Calculator The CAGR Calculator finds the compound annual growth rate of an investment, business metric, or any value that grows over time. Enter a starting value, an ending value, and the number of years, and the tool computes the smooth annual rate that would carry the start to the end if it grew at ...
Try the Tool »HAR File Formatter & Request Inspector Drop in an HTTP Archive (.har) file exported from your browser’s DevTools and instantly see every request as a sortable, filterable waterfall — with full DNS, connect, SSL, wait, and download timings, plus the raw headers, body, and a ready-to-paste cURL command for any single request. Everything runs locally ...
Try the Tool »NDJSON Formatter & Validator Paste a Newline-Delimited JSON (NDJSON / JSON Lines) document and check every record at once. Each line is parsed independently, so a single broken record does not hide the rest. The tool reports valid and invalid line counts, the most common top-level keys, and the exact parse error for any line ...
Try the Tool »Base64 Image Preview & Decoder Paste a base64-encoded image string and instantly preview the rendered image, with the format auto-detected from the file’s magic bytes. The decoded image, its pixel dimensions, and the decoded byte size are all computed in your browser – no server upload, no waiting on an API. The optional data: URI ...
Try the Tool »Package.json Formatter & Key Sorter Paste any package.json to get a clean, canonical-ordered version back instantly. This tool reorders top-level keys to the standard npm sequence (name, version, description, scripts, dependencies, and so on), validates required and recommended fields, checks your dependency version ranges, and flags non-standard keys that clutter the manifest. Everything happens in ...
Try the Tool »Shoe & Clothing Size Converter International size charts never agree. A men’s US 10 shoe is a UK 9.5, an EU 44, and a 28-centimeter footprint in Japan. A women’s US 6 top might map to a 34 in the EU, a 10 in the UK, and a small letter-sized S everywhere else. Rather than ...
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Update: Our latest tool was added on May 13, 2026
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