Free Online Utility Tools

Count words, characters (with and without spaces), sentences, and paragraphs in real time. Paste any text and get instant stats. Free.

Convert text between UPPERCASE, lowercase, Title Case, snake_case, kebab-case, camelCase, and more.

Sort any list of lines alphabetically, by length, or in reverse order. Includes a case-sensitive toggle and options to sort A→Z, Z→A, shortest first, or longest first. Free.

Remove duplicate lines from any text or list instantly. Options to ignore case and trim whitespace before comparing. Keeps first occurrence by default. Free.

Paste CSV data and view it as a sortable, formatted table instantly in your browser.

Remove empty rows, empty columns, and trim extra whitespace from CSV data. Preview the cleaned result and copy to clipboard. Free.

Validate JSON instantly with line-level error reporting. Paste your JSON and see exactly where the syntax error is — plus root type, depth, and key count. Free.

Minify JSON by removing all whitespace. Shows bytes saved and compression percentage.

Compress JPEG, PNG, and WebP images in your browser — no upload required. Set your quality level, compare before/after sizes, and download the optimized file. Free.

Convert PNG images to JPG instantly in your browser. Set background color for transparent areas, adjust JPEG quality, and download. Nothing uploaded. Free.

Convert JPG or JPEG images to PNG format with full transparency support. Drag, drop, and download in seconds — runs entirely in your browser. Free.

Convert JPG, PNG, GIF, or HEIC to WebP — or WebP back to any format. Adjust quality, compare file sizes, all in your browser. Nothing uploaded. Free.

Generate lighter tints and darker shades of any color. See the full scale from white to black with one-click copy of HEX, RGB, or HSL values for each swatch. Free.

Convert colors between HEX, RGB, RGBA, HSL, HSLA, and CSS named colors instantly. Paste any value or use the color picker — get every format at once. Free.

Convert any HEX color code to RGB instantly. Paste your hex value and get RGB, RGBA, HSL, and HSLA outputs — each with a one-click copy button. Free.

Convert RGB to HEX instantly. Paste any RGB value and get the HEX code plus RGBA, HSL, and HSLA — all with one-click copy. Free, no sign-up required.

Verify a file's integrity by checking its hash against an expected checksum. Supports SHA-256, SHA-1, MD5, and more. Runs in your browser — nothing uploaded. Free.

Paste a JSON Web Token to decode and inspect its header, payload, and expiry — entirely in your browser.

Test regular expressions against a string with live match highlighting, flag toggles, and a match details table.

Generate SEO and social meta tags — standard, Open Graph, and Twitter/X Card — and copy the ready-to-paste HTML.

Instantly see your public IP address, country, region, city, ISP, and connection type. No app needed — your IP information loads automatically. Free.

See your exact screen resolution, browser viewport size, device pixel ratio, and orientation. Helpful for responsive design and CSS media query debugging. Free.

Convert a date and time between any two time zones. See the offset difference and local times side by side.

Convert a Unix timestamp to a human-readable date, or convert a date back to a Unix timestamp.

Calculate what percent of a number is, find a percentage change between two values, or determine what percent one number is of another. Three calculators in one. Free.

Simplify any ratio to its lowest terms, solve proportions, or find the missing value in A:B = C:X. Enter any three values to solve for the fourth. Free.

Calculate your exact age in years, months, and days from any date of birth. Also shows your next birthday and how many days until it. Free, instant results.

Count the exact number of days, weeks, and months until any future date. Great for countdowns, deadlines, and event planning. Updates in real time. Free.

Calculate monthly loan payments, total interest paid, and view a full amortization schedule for any loan amount, interest rate, and term. Free.

Estimate your monthly mortgage payment with principal and interest breakdown. Includes a full amortization schedule for any loan amount, rate, and term. Free.

See exactly how much interest you save and how many years you cut off your mortgage by making extra monthly payments. Compare your current vs. accelerated payoff. Free.

Calculate how any investment grows over time with compound interest and regular contributions. See year-by-year growth, total contributions, and total interest earned. Free.

Estimate your YouTube channel's monthly ad revenue from views, CPM rate, and ad impression rate. Model different monetization scenarios and compare outcomes. Free.

Estimate monthly AdSense earnings from your page views, click-through rate, and cost per click.

Calculate Etsy's listing fee, transaction fee, and payment processing fee for any sale price. See your exact net earnings and effective fee percentage. Free.

Calculate eBay final value fees by category and see exactly what you'll pocket from each sale. Enter your sale price and get net profit instantly. Free.

Calculate monthly and annual cash flow for any rental property. Enter rent, mortgage, taxes, insurance, vacancy, and repairs to see your true net cash flow. Free.

Calculate cap rate instantly. Enter rent, vacancy, expenses, and property value to get your NOI and capitalization rate — and compare investment properties. Free.

Calculate cash-on-cash return on any rental property. Enter your annual cash flow and total cash invested to instantly see your CoC return. Free.

Calculate the new monthly rent after a percentage or flat dollar increase, and see the annualized income change. Useful for landlords and property managers. Free.