너멜엠 NumLM Tools

Find X% of a number, what percent one number is of another, percent change, and percent difference — instantly, with the formula shown.

Compress JPG, PNG and WebP images in your browser. Batch, unlimited size, compress to a target KB — no upload, no signup.

Convert length, weight, temperature, area, volume, speed, time, data, pressure and energy — live, with every unit in the category converted at once.

Convert PNG, JPG, WebP, GIF, BMP and SVG images in your browser. Resize, set a JPG background colour, batch convert and download as ZIP.

Exact age in years, months and days, total days and hours, the weekday you were born and a next-birthday countdown — from a solar or Korean lunar birth date.

Calculate compound interest with regular contributions, any compounding frequency, and inflation-adjusted results. Year-by-year table and growth chart included.

Convert between 30 currencies using European Central Bank reference rates, with the rate date shown, no ads and no transfer upsell. Works offline from cache.

Merge, split, rotate PDFs, turn images into a PDF and export PDF pages as images — all in your browser. No upload, no signup, no file size limit.

Find X% of a number, what percent one number is of another, percent change, and percent difference — instantly, with the formula shown.

Exact age in years, months and days, total days and hours, the weekday you were born and a next-birthday countdown — from a solar or Korean lunar birth date.

Calculate BMI in metric or imperial units, see your WHO category on a visual scale, the healthy weight range for your height, and Asian-Pacific thresholds.

Work out the tip and total instantly, split the bill between any number of people, round the total or the per-person amount up, and tip pre-tax or post-tax.

Count the days, weeks, months and business days between two dates, or add and subtract days, weeks, months and years from any date — with the weekday shown.

Calculate compound interest with regular contributions, any compounding frequency, and inflation-adjusted results. Year-by-year table and growth chart included.

Calculate your monthly loan payment, total interest, payoff date and full amortization schedule. Add extra payments to see the interest and time you save.

Estimate your monthly mortgage payment with taxes, insurance, PMI and HOA. See the full amortization schedule, payoff date, and when PMI drops off.

Calculate return on investment, net gain and annualized ROI (CAGR) from what you invested and what you got back — or project future growth from monthly contributions.

Convert length, weight, temperature, area, volume, speed, time, data, pressure and energy — live, with every unit in the category converted at once.

Convert length and distance between centimetres, inches, feet, metres, yards, miles and more — with every unit in the category listed at once.

Convert weight and mass between kilograms, pounds, ounces, stones, grams and tonnes, using exact definitions, with all units shown side by side.

Convert Celsius, Fahrenheit, Kelvin and Rankine with the formula shown and a check against absolute zero — the conversion most calculators get wrong.

Convert between seconds, minutes, hours, days, weeks, months and years, with averaged units clearly marked so the numbers are never misleading.

Convert between 30 currencies using European Central Bank reference rates, with the rate date shown, no ads and no transfer upsell. Works offline from cache.

Count words, characters, sentences, paragraphs and lines as you type, with reading time, keyword density and Unicode-correct counting. Nothing is uploaded.

Count characters, code points, UTF-16 units and UTF-8 bytes at once, with live limit meters for X, SMS segments, meta descriptions and title tags.

Compare two texts by line, word or character. Side-by-side and unified views, ignore whitespace, case and line endings — free, in your browser.

Format, validate and minify JSON in your browser. 2/4/tab indent, sort keys, exact line and column errors, and big-integer safe mode. Nothing is uploaded.

Encode and decode Base64 in your browser — text, files, URL-safe, MIME line wrap and data URLs. UTF-8 correct, no uploads, no size limit.

Percent-encode and decode URLs in your browser. Choose encodeURIComponent or encodeURI, handle + as space, and break any URL into its parts.

Test JavaScript regular expressions live: match highlighting, capture group table, named groups and replace preview — with a catastrophic-backtracking guard.

Get MD5, SHA-1, SHA-256, SHA-384 and SHA-512 at once for text or a file, with HMAC, hex/Base64 output and checksum verification. All in your browser.

Generate UUID v4 or time-ordered v7 in bulk, with uppercase, braces and no-hyphen formats. Plus a UUID inspector that decodes version and timestamp.

Convert Unix timestamps to dates and back, in seconds, milliseconds, microseconds or nanoseconds. Any IANA timezone, ISO 8601, RFC 2822 and batch conversion.

Compress JPG, PNG and WebP images in your browser. Batch, unlimited size, compress to a target KB — no upload, no signup.

Convert PNG, JPG, WebP, GIF, BMP and SVG images in your browser. Resize, set a JPG background colour, batch convert and download as ZIP.

Merge, split, rotate PDFs, turn images into a PDF and export PDF pages as images — all in your browser. No upload, no signup, no file size limit.

Create QR codes for links, Wi-Fi, vCards, email, SMS and phone numbers. Free PNG and SVG download, custom colours and error correction.