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Format, validate, minify, convert, and work with JSON and structured data directly in your browser.

Format, beautify, minify, and clean up JSON, HTML, CSS, YAML, XML, SQL, and JavaScript.

Convert data formats, number bases, text encodings, measurements, storage units, dimensions, rates, and color values online.

Encode and decode Base64, URLs, HTML entities, JWTs, binary, hexadecimal text, and URL slugs.

Generate UUIDs, hashes, HMACs, passwords, random strings, QR codes, MAC addresses, placeholder text, and URL slugs.

Inspect URLs, query strings, JWTs, regular expressions, cron expressions, HTTP data, Markdown, user agents, and text.

Generate and inspect meta tags, search snippets, Open Graph metadata, robots.txt rules, sitemaps, schema markup, UTM links, keywords, and headings.

Solve scientific expressions, fractions, statistics, number theory, equations, coordinate geometry, triangles, and random-number problems.

Calculate mortgages, loans, interest, ROI, margins, markup, break-even points, commissions, salary conversions, growth rates, and savings goals.

Calculate business days, working hours, date adjustments, time-zone conversions, and durations between dates and times.

Calculate concrete, flooring, roofing, paint, gravel, lumber, fencing, landscaping materials, and common home-project quantities.

Calculate watts, amps, volts, energy, batteries, voltage drop, wire gauge, resistance, capacitance, transformers, and lighting values.

Calculate GPA, weighted GPA, final grades, test grades, semester GPA, cumulative GPA, and weighted course grades.

Calculate ecommerce, advertising, inventory, retention, recurring revenue, customer economics, and SaaS business metrics.

Calculate averages, ratios, percentages, discounts, sales tax, tips, dates, age, resolutions, network values, data transfer times, and more.

Pick, convert, compare, and generate colors, palettes, gradients, shades, tints, and accessibility contrast values directly in your browser.

Merge, split, inspect, convert, compress, edit, generate, and transform PDF documents directly in your browser.

Compress, resize, crop, rotate, inspect, encode, and convert JPG, PNG, WebP, and SVG images directly in your browser.

Calculate fuel cost, tire size, gearing, engine performance, EV charging, and other automotive values.

Scale recipes and calculate dough, baking, coffee, brine, and food-cost values.

Calculate photography exposure, depth of field, focal length, video bitrate, file size, and recording time.