Free Developer Tools
Fast, private, and free. All tools run entirely in your browser - no data is ever sent to a server.
Word Counter
Count words, characters, sentences, paragraphs, and reading time.
Open tool PopularCase Converter
Convert text to UPPER, lower, Title, camelCase, snake_case, and more.
Open tool PopularText Diff Checker
Compare two texts and see differences highlighted line by line.
Open tool PopularJSON Formatter
Format, validate, and beautify JSON instantly in your browser.
Open tool PopularPassword Generator
Generate strong, secure passwords with custom rules and strength meter.
Open tool PopularQR Code Generator
Create QR codes for URLs, text, email, phone, and WiFi.
Open tool PopularPercentage Calculator
Calculate percentages, percentage change, and percentage difference.
Open tool PopularTime Zone Converter
Convert times between any time zones. Live world clock.
Open toolUnix Timestamp Converter
Convert epoch timestamps to human dates and back. Live current timestamp.
Open toolURL Encoder / Decoder
Encode or decode URL components and full URLs.
Open toolBase64 Encode / Decode
Encode or decode Base64 strings and files in your browser.
Open toolImage to Base64
Convert images to Base64 data URLs for embedding in HTML and CSS.
Open toolUUID Generator
Generate v4 UUIDs instantly. Bulk generate up to 100 at once.
Open toolLorem Ipsum Generator
Generate placeholder text by paragraphs, sentences, or words.
Open toolRegex Tester
Test and debug regular expressions with live match highlighting.
Open toolJWT Decoder
Decode and inspect JWT tokens. Header, payload, and expiry check.
Open toolJWT Generator
Create signed JSON Web Tokens with custom payload and secret.
Open toolHash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes from any string.
Open toolColor Picker
Pick colors and convert between HEX, RGB, and HSL formats.
Open toolMarkdown Preview
Write Markdown and see a live rendered preview side by side.
Open toolMarkdown to HTML
Convert Markdown to clean HTML instantly. Copy for use in projects.
Open toolCron Expression Generator
Build cron schedules visually with human-readable explanations.
Open toolNumber Base Converter
Convert between decimal, binary, hex, octal, and any base 2-36.
Open toolSQL Formatter
Format and beautify messy SQL queries with proper indentation.
Open toolCSS Minifier
Minify CSS to reduce file size or beautify compressed CSS.
Open toolCSS to Tailwind
Convert plain CSS properties to Tailwind CSS utility classes.
Open toolHTML Minifier
Remove whitespace and comments from HTML to reduce file size.
Open toolHTML Entities
Encode or decode HTML entities. Convert < > & and more.
Open toolYAML to JSON
Convert YAML to JSON and JSON to YAML. Perfect for Kubernetes configs.
Open toolJSON to CSV
Convert JSON arrays to CSV format. Download as .csv file.
Open toolSlug Generator
Convert titles into clean, SEO-friendly URL slugs. Bulk support.
Open toolMeta Tag Generator
Generate SEO meta tags, Open Graph, and Twitter Card tags.
Open toolOpen Graph Preview
Preview how your page looks when shared on Twitter and LinkedIn.
Open toolrobots.txt Generator
Create a robots.txt file with custom crawl rules for search engines.
Open toolHTTP Status Codes
Complete HTTP status code reference. Search by code or name.
Open toolAspect Ratio Calculator
Calculate dimensions for 16:9, 4:3, 1:1, and custom aspect ratios.
Open toolReading Time Calculator
Estimate reading time for any article. Adjust for reading speed.
Open toolIP Address Lookup
Find your public IP address and get geolocation information.
Open toolDev Cost Calculator
Compare software development costs across US, EU, and Bangladesh.
Open toolDeveloper Rate Comparison
Compare developer hourly rates by country, role, and seniority.
Open tool