All Tools - Page 7
213 tools available
Page 7 of 9
Pressure Converter
Convert between different units of pressure measurement including PSI, bar, pascal, atmosphere, torr, mmHg, and more. Quick and accurate pressure conversions for engineering and scientific applications.
Px / Em / Rem Converter
Convert between px, em, and rem values for CSS sizing. Perfect for responsive design calculations.
QR Code Generator
Generate QR codes from text or URLs with customizable size and download options. Create scannable QR codes for websites, contact info, WiFi passwords, and more.
QR Code Reader
Decode QR codes from any image — upload a file, drag and drop, or paste a screenshot straight from your clipboard. Reads URLs, Wi-Fi credentials, vCard/MECARD contacts, and plain text instantly. Runs entirely in your browser; your image is never uploaded.
Radiation Dose Converter
Convert between different radiation dose units including grays, rads, sieverts, rems, and roentgens
Radioactivity Converter
Convert between different radioactivity units including becquerels, curies, rutherford, and disintegrations per second
Random Number Generator
Generate random numbers with customizable ranges, quantities, and options. Perfect for games, testing, sampling, and mathematical applications.
Random Password Generator
Generate secure, customizable passwords with options for length, character sets, and complexity. Create strong passwords for accounts, applications, and security purposes.
Readability Score Analyzer
Analyze text readability using multiple metrics including Flesch-Kincaid Grade Level, Gunning Fog Index, Coleman-Liau Index, and more. Get detailed statistics and recommendations for improving text accessibility.
Regex Tester
Test regular expressions with sample text. Find matches, test patterns, and debug regex with real-time results and explanations.
Remove Duplicate Lines
Clean up lists by removing duplicate entries. Remove duplicate lines from text while preserving order or sorting alphabetically.
Resistance Converter
Convert between different units of electrical resistance measurement including ohms, kilohms, megohms, abohms, statohms, and more. Essential for electrical engineering and electronics applications.
RGB to HEX Converter
Convert RGB values to HEX format for CSS and design.
Robots.txt Tester
Test and validate robots.txt files for crawling permissions. Check if specific URLs are allowed or disallowed for search engine bots and web crawlers. Essential for SEO optimization.
Schema.org JSON-LD Generator
Generate ready-to-paste Schema.org JSON-LD structured data for Article, Product, LocalBusiness, FAQ, BreadcrumbList, Organization, Person, Event, Recipe, and HowTo. Improves SEO and unlocks rich results — all in your browser.
Scrypt Hash Generator & Verifier
Generate secure scrypt hashes and verify passwords against existing hashes. Scrypt is a memory-hard password hashing function designed to resist hardware-based attacks with configurable CPU/memory cost parameters.
SHA-1 Hash Generator & Verifier
Generate SHA-1 hashes from text input and verify text against existing SHA-1 hashes. SHA-1 produces a 160-bit hash value but is deprecated due to security vulnerabilities - use SHA-256 or SHA-3 for new applications.
SHA-256 Hash Generator & Verifier
Generate SHA-256 hashes from text input and verify text against existing SHA-256 hashes. SHA-256 is a secure cryptographic hash function producing 256-bit values, widely used in blockchain, digital signatures, and file integrity verification.
SHA-512 Hash Generator & Verifier
Generate SHA-512 hashes from text input and verify text against existing SHA-512 hashes. SHA-512 is the most secure hash function in the SHA-2 family, producing 512-bit values ideal for high-security applications and long-term data integrity.
SHA‑3 / Keccak Hash Generator
Generate and verify SHA-3 and Keccak hashes with support for all variants including SHAKE128/256 extendable output functions. Features the latest NIST-approved SHA-3 standard and original Keccak algorithms used in Ethereum blockchain. Next-generation cryptographic security.
Sitemap.xml Generator
Build a valid XML sitemap from a URL list. Set per-URL priority, change frequency, and last-modified date. Supports sitemap-index for >50 000 URLs. Validates against the sitemaps.org spec — all in your browser.
SMTP Test Tool
Test any SMTP server's connection, authentication, TLS/SSL configuration, and delivery. Diagnose connection refused, authentication failures, certificate problems, and relay errors before they reach production — without firing up Telnet or a test mail client.
Sound Level Converter
Convert between different sound level units including decibels, bels, nepers, and various decibel scales
Speed Converter
Convert between different units of speed and velocity measurement including meters per second, kilometers per hour, miles per hour, knots, Mach, and more. Perfect for physics, engineering, and transportation calculations.