Quick utility tools for developers and everyday use. No sign-up. No tracking.
ByteTech Labs
bytetechlabs.com
Open a WhatsApp chat with any number without saving it to your contacts
Start a Telegram conversation with any number or username without adding them
Generate dynamic EMV payment QR codes by injecting an amount into your bank's static QR
Scan QR codes using your camera or upload an image — no libraries, fully private
Generate QR codes for text, URLs, or Wi-Fi with custom colors and error correction
Add GST to a base price or extract GST from an inclusive amount at any tax rate
Format, minify, and validate JSON with syntax highlighting and error detection
Visually compare two JSON objects and highlight added, removed, or changed keys
Instantly generate TypeScript interfaces and types from any JSON structure
Convert JSON arrays to CSV spreadsheets and back, with header detection
Beautify and format SQL queries for MySQL, PostgreSQL, and SQLite dialects
Convert HTML snippets to JSX syntax and back — handles class, style, and events
Escape special characters to HTML entities and unescape them back to plain text
Live-render Markdown to styled HTML with support for tables, code blocks, and GFM
Test regular expressions against input with live match highlighting and flag support
Quick reference for regex syntax — anchors, groups, quantifiers, lookaheads
Convert numbers between binary, octal, decimal, hex, and any custom base
Transform text between camelCase, snake_case, PascalCase, kebab-case and 9 more
Generate cryptographically random UUID v4 identifiers, one or in bulk
Convert colors between HEX, RGB, HSL, and HSV with a live visual preview
Visually build linear and radial CSS gradients and copy the ready-to-use CSS
Convert between px, em, rem, vw, vh, and pt at any base font size or viewport
Generate custom SVG placeholder images with any size, color, and label for mockups
Calculate Unix file permissions in octal and symbolic notation (rwxr-xr-x)
Check whether a version satisfies a semver range — useful for dependency debugging
Paste a docker run command and get the equivalent docker-compose.yml YAML output
Paste a .env file to parse, visualize, and inspect key-value pairs and comments
View your browser, OS, screen resolution, timezone, and hardware concurrency
Obfuscate JS/TS code by encoding strings, renaming variables, and minifying — or decode obfuscated code
Generate random tokens with a custom character set and length for API keys or secrets
Generate cryptographically secure passwords with custom length, symbols, and rules
Analyze password strength, entropy, and estimated crack time with detailed feedback
Compute MD5, SHA-1, SHA-256, and SHA-512 hashes of any text string instantly
Generate HMAC-SHA256 or HMAC-SHA512 message authentication codes with a secret key
Encrypt and decrypt text using AES-GCM with a passphrase — all processing in-browser
Hash passwords with bcrypt and verify a plaintext password against an existing hash
Generate time-based one-time passwords (TOTP) from a Base32 secret per RFC 6238
Apply ROT13 or a custom Caesar cipher shift to encode and decode text
Decode and inspect JWT header, payload, and expiry without a secret key
Sign and create JWT tokens with a custom payload and HS256 secret key
Encode plain text or binary data to Base64 and decode Base64 strings back to text
Validate credit card numbers using the Luhn algorithm and identify the card network
Validate international bank account numbers and extract country, bank, and account info
Convert between YAML and JSON formats with syntax validation and pretty printing
Percent-encode and decode URL components — handles spaces, special chars, and Unicode
Convert between decimal integers and Roman numeral notation in both directions
Convert temperatures between Celsius, Fahrenheit, and Kelvin simultaneously
Translate text to Morse code dots and dashes and decode Morse back to text
Convert lists between CSV, JSON array, newline-separated, and tab-separated formats
Spell out numbers in English words — supports negatives, decimals, and up to trillions
Convert images to Base64 data URIs and back — useful for embedding images in CSS or HTML
Compress and convert JPEG, PNG, and WebP images locally without uploading to a server
Reduce PDF file size by re-rendering pages as compressed images — up to 80% smaller
Combine multiple PDF files into a single document, reorder pages, all in-browser
Convert text into large ASCII block art using various fonts and character styles
Break any URL into protocol, host, path, query params, and fragment components
Look up HTTP status codes with descriptions, use cases, and MDN reference links
Query A, AAAA, MX, TXT, CNAME, NS, and more DNS records via Cloudflare DNS over HTTPS
Convert IPv4 addresses between dotted decimal, binary, hexadecimal, and integer formats
Calculate subnet mask, network address, broadcast address, and usable host range
Generate random or vendor-prefixed MAC addresses for testing and network simulation
Encode credentials into a Base64 Basic Authorization header for HTTP requests
Parse and explain cron expressions in plain English, or build cron schedules visually
Look up MIME types by file extension or find extensions for a given MIME type
Parse and decode your browser's user agent string into OS, browser, and version details
Generate SEO meta tags, Open Graph, and Twitter Card markup ready to paste into HTML
Convert Unix timestamps to human-readable dates and convert dates back to timestamps
Generate single or bulk random integers or decimals within a custom min–max range
Calculate exact age in years, months, and days from a birthdate to today or any date
Count the exact number of days, weeks, or months between any two calendar dates
Calculate, simplify, and lock aspect ratios — find missing dimensions for any ratio
Calculate percentages, percentage change, and what percentage one number is of another
Focus timer with 25-minute work sessions and customizable short and long break cycles
Count words, characters, sentences, and estimate reading time for any block of text
Compare two text blocks side-by-side and highlight every addition and deletion
Generate Lorem Ipsum placeholder text by words, sentences, or paragraphs
Generate realistic fake names, emails, addresses, and other data for testing
Quick local notepad that auto-saves in your browser — no account needed
Convert any text into a clean URL-safe slug with custom separators and case options
Convert any text to NATO phonetic alphabet spelling (Alpha, Bravo, Charlie…)
Convert plain text to binary (0s and 1s) and decode binary back to readable text
Encode text as hexadecimal byte values and decode hex strings back to plain text
Generate numeronyms like i18n or k8s by abbreviating long words with their letter count
Analyze text and rank words by how often they appear — useful for content analysis
Press any key to inspect its event.key, keyCode, and code values in real time
Obfuscate sensitive strings using Unicode lookalikes, zero-width chars, or encoding
Build Markdown tables visually in a spreadsheet-like editor, import from CSV, and copy the raw syntax
Generate .gitignore files for any language, framework, or tool from curated templates
