Browse the complete library of 49+ free online tools. Search instantly or filter by category.
Count words, characters, sentences, and paragraphs in your text instantly.
Count characters with and without spaces for tweets, meta descriptions, and SMS.
Count sentences in any text based on punctuation and see average sentence length.
Count paragraphs and lines quickly, separated by blank lines.
Estimate reading time at adjustable words-per-minute.
Count only alphabetic letters and view the most frequent letters.
Sort lines alphabetically or numerically, ascending or descending.
Remove duplicate lines with optional case-sensitive or trimmed matching.
Convert text to UPPER, lower, Title, Sentence, camelCase, snake_case, kebab-case, and more.
Generate random English words for prompts, games, and brainstorming.
Find possible words from a scrambled set of letters.
Three calculators in one: percent-of, X is what % of Y, and percentage change.
Calculate exact age in years, months, days and total days.
Days, weeks, months, and years between two dates.
Calculate Body Mass Index in metric or imperial units.
Calculate grade point average from letter grades on a 4.0 scale.
Calculate tip, total, and per-person share.
Convert length, weight, volume, and temperature between metric and imperial.
Monthly payment, total interest, and total cost for fixed-rate loans.
Compress JPG or PNG images fully in your browser — no upload required.
Resize an image to specific dimensions with locked or free aspect ratio.
Convert JPG images to lossless PNG format instantly.
Convert PNGs to smaller JPGs; transparency is flattened to white.
Convert JPG or PNG images to WebP for faster web loading.
Crop an image to a specific rectangle by pixel coordinates.
Merge multiple PDFs into a single document — fully in your browser, no upload.
Split a PDF into single pages or custom ranges. Runs in your browser.
Reduce PDF file size losslessly. No upload, no watermark.
Rotate any page (or every page) 90°, 180° or 270°. Client-side only.
Convert each PDF page to a high-resolution JPG image, in-browser.
Combine JPG and PNG images into a single PDF, in the order you choose.
Format, validate, and minify JSON with helpful error messages.
Encode text to Base64, including Unicode text.
Decode Base64 strings back to text, including Base64URL.
Generate random v4 UUIDs; up to 200 at a time.
URL-encode strings so they are safe as query parameters.
Decode percent-encoded URLs back to readable text.
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes.
Pick colors and copy them in HEX, RGB, or HSL.
Generate a complete <head> tag block including OG and Twitter Cards.
Generate a robots.txt to allow or block search crawlers.
Generate Open Graph and Twitter Card tags for rich social previews.
Convert titles into clean, SEO-friendly URL slugs.
Paste an XML sitemap and check its structure.
Generate customisable QR codes for any URL or text, right in your browser.
Generate strong, random passwords using the browser’s crypto API.
Convert Markdown to clean, sanitised HTML with a live preview.
Convert HTML to clean Markdown, useful when migrating content.
Test JavaScript regular expressions with live match highlighting and capture groups.