All free browser-based tools, organized in one place.

Crop, resize, compress, watermark, convert, pick colors, generate favicons, and prepare visual assets without uploading files.

Format JSON, XML, HTML, CSS, and YAML, convert JSON, YAML, XML, CSV, Markdown, and structured text, generate JSON Schema, calculate CSS specificity and Unix permissions, extract JSON values, parse URLs, parse URL query strings, parse User-Agent strings, parse HTTP headers, calculate uptime budgets, look up MIME types, validate email syntax, strip HTML to text, generate email links, convert CSV, TSV, and JSON, clean CSV rows, build tracking links, preview meta tags, generate canonical, hreflang, robots, FAQ schema, and breadcrumb schema output, check OG image sizes, generate robots.txt drafts, check sitemap URL lists, compare and sort text, escape and test regex, validate cron expressions, decode tokens, encode text, hash strings and files, generate ULIDs, NanoIDs, UUIDs, and passwords, and create scannable codes or identifiers in the browser.

Estimate savings growth, DCA scenarios, mortgage and loan payments, APR/APY conversion, hourly pay, meeting cost, payment fees, VAT, discounts, sales tax, tips, unit prices, fuel costs, profit margins, break-even units, and shopping math.

Estimate BMI, calories, and sleep timing with transparent assumptions.

Plan time zones, timestamps, countdowns, business days, work hours, date offsets, week numbers, time unit conversions, start-to-end durations, add/subtract duration math, playback speed, and video timelines.

Convert everyday units, number bases, Roman numerals, CSS sizing formulas, color formats, palettes, gradients, box shadows, grid and flexbox CSS, and accessibility checks in the browser.

Generate placeholder text, clean text, remove duplicate lines, convert Markdown, HTML, and CSV tables, strip Markdown or HTML to plain text, preview Markdown, generate tables, count words, score readability, analyze word frequency, generate URL slugs, convert text case, and estimate reading or media time for publishing work.

Solve practical arithmetic, averages, weighted grades, ratios, fractions, GCD, LCM, prime factors, randomization, list shuffling, and picking workflows without a spreadsheet.