Tools

Count characters with and without spaces, words, sentences, paragraphs, and reading time — optimized for Twitter, Instagram, and meta description limits.

Sort lines of text alphabetically, numerically, or by length — remove duplicates, reverse order, and more.

Convert between units of length, weight, temperature, volume, speed, and more — instant results with common conversions.

Generate barcodes in multiple formats — Code 128, EAN-13, UPC-A, Code 39, and more. Download as PNG.

Generate QR codes for URLs, text, Wi-Fi, vCards, and more — download as PNG or SVG with custom colors.

Unescape JSON strings — convert escaped characters back to their readable form for debugging.

Escape special characters in JSON strings — handles quotes, backslashes, newlines, and Unicode characters.

Convert binary code back to readable text — paste binary digits and decode to ASCII or UTF-8 text.

Convert text to binary code (ASCII/UTF-8) — see how every character maps to 0s and 1s.

Convert RGB color values to hex codes — enter red, green, blue values and get the hex color with live preview.

Convert hex color codes (#ff5733) to RGB values (255, 87, 51) — preview colors and copy in multiple formats.

Convert Unix timestamps to human-readable dates and vice versa — supports seconds and milliseconds.

Generate MD5 hash for any text — commonly used for file checksums and legacy data integrity checks.

Generate SHA-256 hash for any text input — used for checksums, password hashing, and data integrity verification.

Test regular expressions in real-time — paste your pattern and test string, see matches highlighted instantly with capture groups.

Build and validate cron expressions visually — select minutes, hours, days, months with a point-and-click interface.

Look up any IP address to find geolocation, ISP, timezone, and network details — all from your browser.

Visualize regex matches with highlighted text, match groups, and real-time analysis. Supports all JavaScript regex flags (g, i, m, s).

Test CORS headers on any API endpoint. Check Access-Control-Allow-Origin, allowed methods, and headers in real-time from your browser.

Generate production-ready Dockerfiles with presets for Node.js, Python, Go, and Nginx. Customize every layer — FROM, RUN, COPY, EXPOSE, CMD.

Generate JSON-LD structured data for Article, FAQ, Product, LocalBusiness, Organization, and Breadcrumb schemas. Paste directly into your HTML for rich snippets.

Calculate aspect ratios from pixel dimensions or resize dimensions to match a ratio. Reference table of common aspect ratios included.

Find the right regex pattern for common use cases. 23 predefined patterns with descriptions and test functionality. Free regex reference tool.