Free Online Tools, Processed Locally.

Free online JSON formatter, validator, and beautifier. Format your JSON string instantly in your browser.

Test, debug, and evaluate Regular Expressions (RegEx) instantly in your browser.

Free online Base64 encoder and decoder. Convert text to Base64 format and vice versa instantly in your browser.

Encode and decode URLs and URI components online for free. Safely process URL parameters.

Generate bulk random UUIDs (Universally Unique Identifiers) instantly online.

Convert colors between HEX, RGB, HSL, and CMYK formats. Free online color picker and conversion tool.

Decode JSON Web Tokens (JWT) locally to view header and payload claims securely.

Convert Unix epoch timestamps to human-readable dates, and vice versa.

Encode and decode HTML entities safely to prevent XSS and format code snippets.

Beautify and format messy SQL queries instantly online.

Format, beautify, and indent XML data locally in your browser.

Visually create and copy CSS box-shadow code with an interactive preview.

Beautify messy CSS code or minify it to save bandwidth.

Free online MDB Viewer. Open and read Microsoft Access Database (.mdb) files directly in your browser. No uploads, 100% private and secure.

Parse, explain, validate and visually build standard crontab configurations.

Convert JSON strings to YAML configurations and vice versa with custom indentation settings.

Parse User Agent strings online. Instantly detect browser, operating system, device, CPU, and rendering engine details.

Compile JSON strings into clean Go Structs or TypeScript Interfaces instantly.

Convert JSON structures to tabular CSV files and vice versa with custom delimiters.

Convert plain text to hexadecimal bytes and vice versa with custom delimiters.

Generate JSON Web Tokens (JWT) locally with custom headers, payloads, and signatures.

Generate QR codes with customizable sizes, colors, and error correction levels, or upload/paste QR code images to decode them instantly.

Optimize SVG markup client-side. Clean metadata, empty tags, namespaces, and round coordinates precision.

Format, beautify, and minify HTML code instantly in your browser. 100% local processing for complete privacy.

Convert numbers between binary, octal, decimal, and hexadecimal (bases 2-36) instantly in your browser.

Calculate IPv4 subnets from CIDR notation. Network address, broadcast, host count, and mask conversion.

Test and evaluate JSONPath expressions against your JSON data with live match highlighting.

Generate PWA manifest.json files visually with live preview and one-click download.

Generate SEO meta tags, Open Graph, and Twitter Card tags with one-click copy.

Visually create linear and radial CSS gradients with multiple color stops and copy the CSS code.

Generate CSS Flexbox layouts visually. Adjust justify-content, align-items, and flex-wrap with live preview.

Generate CSS Grid layouts visually. Define columns, rows, and gaps with a real-time preview and copy CSS.

Generate beautiful color palettes online. Create random palettes or pick from a base color with HEX, RGB, and HSL codes.

Generate a robots.txt file for your website. Control crawler access with rules for User-agent, Allow, and Disallow.

Compress JPEG, PNG, and WebP images online for free without losing quality. 100% local browser processing.

Convert images locally between PNG, JPG, and WEBP formats.

Convert images to Base64 data URIs or decode Base64 strings back to images.

Resize images locally to any dimensions with JPG, PNG, or WebP output. Zero uploads, complete privacy.

Extract and view EXIF metadata from JPEG and TIFF images locally. Camera info, GPS, timestamps.

Add text or image watermarks to your photos online for free. Protect your images with custom watermarks directly in your browser.

Pick exact colors from any image online. Upload an image and click to get HEX, RGB, and HSL color codes instantly.

Generate favicons online for free. Convert your image to ICO, PNG, and SVG favicons in multiple sizes for your website.

Calculate your monthly mortgage payments quickly and easily. See how much you will pay in principal and interest.

Free online unit converter for Length, Weight, Temperature, Area, and Volume.

Calculate percentages easily. Find the percentage of a number, percentage increase/decrease.

Calculate the difference between two dates in days, weeks, months, or years, plus business days.

Calculate your Body Mass Index (BMI) in metric or imperial units with health category feedback.

Convert times between any IANA time zones with real-time results and quick-pick common zones.

Free online scientific calculator with trigonometry, logarithms, exponents, and memory functions.

Generate random numbers online for free. Pick unique numbers in a range with one click.

Generate strong, secure, and random passwords locally in your browser. Complete privacy guaranteed.

Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes from text locally in your browser.

Securely hash plaintext passwords using bcrypt with adjustable cost rounds, or verify hashes in real-time.

Generate 6-digit TOTP authenticator codes locally with a 30-second countdown. Supports otpauth URIs and Base32 secrets.

Compute HMAC-SHA256/384/512 hashes from a message and secret key locally in your browser.

Check password strength online instantly. Estimate crack time and get improvement tips for stronger passwords.

Encrypt and decrypt text with AES-256 online. Use a password to secure your data with industry-standard encryption.

Free online word counter, character counter, and text statistics tool.

Generate standard Lorem Ipsum placeholder text for your web designs, mockups, and layouts.

Convert text to lowercase, UPPERCASE, Title Case, camelCase, and more.

Compare two text documents and highlight the differences (added and removed lines).

Write, preview, and format Markdown text in real-time. Export Markdown to clean HTML or print to PDF.

Convert text to URL-safe slugs with Unicode normalization and customizable separators.

Remove duplicate lines from text, sort lines, and strip blank lines instantly in your browser.

Find and replace text using regular expressions with capture group references and live preview.

Convert text to natural-sounding speech online for free. Adjust voice, speed, and pitch with browser-built TTS.

Translate text to Morse code and vice versa. Play Morse code audio and copy the result instantly.

Reverse text online instantly. Flip text character by character, by words, or by lines with one click.