Tools

185 tools. Find yours.

185 tools

Password Generator

Create cryptographically secure random passwords

Password Strength Checker

Evaluate password strength and detect weak patterns

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes

Verify a value against a known hash

Encode text or data to Base64

Decode Base64 strings back to plain text

Generate cryptographically secure v4 UUIDs

Decode and inspect JWT tokens without the secret

Create signed JWT tokens with custom payloads

SSL Certificate Checker

Verify SSL certificate validity and expiry for any domain

Security Headers Checker

Analyze HTTP security headers of any URL

Query DNS records (A, MX, TXT, CNAME, NS)

Query domain registration and ownership information

IP Reputation Checker

Check an IP against threat feeds and blacklists

Check if common ports are open on a host

Test preflight and CORS response headers for any endpoint

.htpasswd Generator

Generate bcrypt, APR1-MD5 or SHA-1 Apache password entries

CSP Header Generator

Build Content Security Policy headers with presets or custom directives

Email Spoofing Checker

Check SPF, DKIM and DMARC to assess spoofing risk

Entropy Analyzer

Detect high-entropy (encrypted/encoded) strings via Shannon entropy

2FA / TOTP Code Generator

Generate TOTP codes from a Base32 seed to test your 2FA implementation

Subdomain Enumerator

Discover common subdomains via wordlist DNS enumeration — www, api, admin and 60+ more

Fake Data Generator

Generate realistic test names, emails, addresses and UUIDs in English or Spanish

SEO Title Generator

Generate optimized title tags under 60 characters

Meta Description Generator

Write compelling meta descriptions under 160 characters

SEO On-Page Analyzer

Analyze on-page SEO factors for any URL

Keyword Density Checker

Calculate keyword frequency and density in a text

Sitemap XML Generator

Generate a valid XML sitemap for your site

Robots.txt Generator

Build and validate robots.txt files

Schema Markup Generator

Generate JSON-LD structured data markup

Open Graph Generator

Create Open Graph meta tags for social sharing

Twitter Cards Generator

Generate Twitter Card meta tags

Canonical Tag Generator

Create canonical link elements to avoid duplicate content

H1–H6 Analyzer

Analyze heading structure and hierarchy of a page

Keyword Difficulty Checker

Estimate keyword difficulty based on competition

Internal Links Analyzer

Extract and analyze internal links on a page

Redirect Checker

Follow and trace the full redirect chain of a URL

SERP Preview Tool

Preview how your page appears in Google search results

JSON Formatter & Validator

Format, minify and validate JSON in real time

Format and prettify XML documents

Beautify and indent raw HTML code

Minify and compress CSS stylesheets

JavaScript Minifier

Minify and compress JavaScript files

Format and beautify SQL queries

Test regular expressions with live match highlighting

Cron Expression Parser

Understand any cron expression in plain English

Timestamp Converter

Convert Unix timestamps to human-readable dates and back

URL Encoder/Decoder

Encode and decode URL components

Color Converter

Convert between HEX, RGB, HSL and CSS color formats

Lorem Ipsum Generator

Generate placeholder text in any length

QR Code Generator

Generate QR codes for URLs, text or contacts

API Request Tester

Send HTTP requests and inspect responses

Compare two texts and highlight differences side by side

Visually decode, verify and build JWT tokens

Chmod Calculator

Calculate Unix permission bits with click-to-toggle grid

Number Base Converter

Convert between binary, octal, decimal and hexadecimal

Markdown Previewer

Live split-pane Markdown editor and HTML renderer

HTTP Headers Viewer

Inspect all HTTP response headers and get a security grade

.gitignore Generator

Generate .gitignore for 20+ languages and frameworks

Bcrypt Generator

Hash and verify passwords with bcrypt, choose cost factor

CSV → JSON Converter

Convert CSV to JSON with auto delimiter detection

HTML Entity Encoder/Decoder

Encode text to HTML entities or decode them back to plain text

JSON → CSV Converter

Convert a JSON array of objects to CSV — auto-detects all columns

YAML ↔ JSON Converter

Convert between YAML and JSON for docker-compose, GitHub Actions and Kubernetes

Analyze a public SSH key — type, bit length, fingerprints and security rating

DNS Propagation Checker

Check if DNS changes have propagated across Google, Cloudflare, Quad9 and OpenDNS

Prompt Generator

Generate effective AI prompts for any use case

Prompt Improver

Enhance and optimize your existing prompts

AI Text Humanizer

Rewrite AI-generated text to sound more human

Text Summarizer

Summarize long documents while preserving key points

Content Rewriter

Rewrite content with a different tone or style

Grammar Checker

Detect and correct grammar and spelling errors

Blog Title Generator

Generate catchy and SEO-friendly blog post titles

SEO Description Generator

Write optimized meta descriptions for blog posts

Social Media Post Generator

Generate posts for LinkedIn, Twitter/X and Instagram

Hashtag Generator

Find relevant hashtags for your content

Professional Email Generator

Write professional emails for any situation

Support Response Generator

Generate helpful customer support replies

Business Idea Generator

Generate validated business ideas based on your skills

Brand Name Generator

Generate creative and memorable brand names

AI Text Detector

Detect whether a text was generated by AI

Color Palette Generator

Generate complementary, analogous and triadic palettes

Contrast Checker (WCAG)

Check WCAG AA/AAA contrast ratios between two colors

CSS Gradient Generator

Build linear and radial gradients with live preview

CSS Box-Shadow Generator

Create and preview CSS box-shadow values visually

Border-Radius Visualizer

Design and preview CSS border-radius interactively

Font Pairing Suggester

AI-powered Google Fonts pairing suggestions

Search 500+ open-source icons with SVG copy and download

Image Color Extractor

Extract the dominant color palette from any image

Image Compressor

Compress PNG, JPG and WebP client-side — files never leave your browser

Remove Inkscape/Illustrator metadata and unused namespaces to shrink SVGs

Favicon Generator

Upload any image and get PNG favicons at 16, 32, 48, 64, 128, 180, 192 and 512 px

Aspect Ratio Calculator

Resize images and videos keeping exact proportions — see common sizes for any ratio

Color Blindness Simulator

Simulate your palette for deuteranopia, protanopia, tritanopia and achromatopsia

Typography Scale Generator

Modular type scale from 12 classical ratios — CSS custom properties + Tailwind config

CSS Animation Generator

16 presets — fadeIn, bounce, shake, flip and more — with live preview and @keyframes output

Tailwind Color Finder

Find the nearest Tailwind color to any hex using perceptual Lab color distance

Placeholder Image Generator

Generate placeholder URLs from placehold.co, Picsum and via.placeholder for mockups

Image Metadata Viewer

Extract EXIF from JPEG — camera, lens, exposure settings, ISO, and GPS coordinates

Plagiarism Checker

Detect duplicate sentences and repeated phrases in your text

Reading Level Analyzer

Score readability with Flesch-Kincaid, Gunning Fog and ARI

AI-powered emotional tone and writing style analysis

TTS Script Formatter

Format text for text-to-speech: expand abbreviations, remove markdown

Press Release Generator

AI-generated professional press releases in AP style

Job Description Generator

Write clear, inclusive job descriptions with AI

Cover Letter Generator

Create tailored cover letters with AI

Text Case Converter

Convert text to camelCase, snake_case, SCREAMING_SNAKE, Title Case, kebab-case and more

Emoji Picker & Search

Instant client-side emoji search with category filter — click to copy, multi-select tray

Paraphrase Detector

Compare two texts for paraphrase (not exact copy) using Jaccard similarity on bigrams and trigrams

Cold Email Generator

Generate high-reply-rate cold B2B emails — no fluff, personalised opener, one clear CTA

LinkedIn Post Generator

Write high-engagement LinkedIn posts with scroll-stopping hooks and ideal character count

Product Description Generator

3 benefit-led e-commerce product descriptions in different copy angles, with SEO keywords

Paste content or a topic and get AI-generated FAQ with answers and JSON-LD schema markup

Tweet Thread Generator

Generate viral Twitter / X threads with hook, value body and CTA — each tweet under 280 chars

Headline Analyzer

Score your headline on power words, sentiment, length and emotional impact — grade A–F

Passive Voice Detector

Highlight passive-voice sentences and get a passive percentage score with fix tips

Sentence Rewriter

Rewrite any sentence or paragraph with AI — same meaning, clearer or different phrasing

A/B Test Calculator

Calculate statistical significance between two variants

Build campaign tracking URLs with UTM parameters

Email Subject Line Tester

Score and improve your email subject lines

Landing Page Analyzer

Analyze CTA, headlines and structure of any landing page

Conversion Rate Calculator

Calculate and compare conversion rates across periods

Competitor Analyzer

Analyze any competitor page: title, meta, keywords, tech

Ad Copy Generator

Generate high-converting ad copy variations with AI

Newsletter Subject Generator

Create compelling newsletter subject lines with AI

Social Media Image Size Guide

Up-to-date dimensions for Instagram, Facebook, Twitter, LinkedIn, YouTube, TikTok & Pinterest

Email Signature Generator

Build an HTML signature to paste in Gmail, Outlook or Apple Mail

Generate tailored bios for Twitter/X, LinkedIn and Instagram from one form

Buyer Persona Generator

AI-generated buyer personas with goals, pain points and outreach strategy

AIDA Framework Generator

Attention → Interest → Desire → Action copy for any product or landing page

Review Response Generator

Respond to positive and negative customer reviews professionally with AI

Social Media Bio Generator

AI bios for Twitter/X, Instagram, LinkedIn, TikTok, YouTube and Threads

Pricing Page Copy Generator

Generate headline, plan cards, FAQ and trust signals for your pricing page

Promo Campaign Generator

Full Black Friday or promo campaign — email, social, ads and hashtags with AI

Theme & Plugin Detector

Detect the active WordPress theme, child theme and plugins from any site URL

WordPress Salts Generator

Generate fresh cryptographic keys and salts from the official WordPress.org API

wp-config.php Generator

Generate a complete, hardened wp-config.php with fresh salts and custom table prefix

.htaccess Generator

Generate a WordPress .htaccess with hardening rules: block xmlrpc, protect wp-config, GZIP, browser caching

Child Theme Generator

Enter theme name and parent slug — download a ready-to-upload .zip with style.css and functions.php

REST API Tester

Test WordPress REST API endpoints with any HTTP method and optional Application Password auth

Cron & REST API Viewer

Check WP-Cron status, REST API availability, active namespaces and site info

Convert any title (accents, emojis, special chars) to the exact slug WordPress would generate

Robots.txt Generator

Generate a WordPress-optimized robots.txt with Yoast/RankMath/AIOSEO sitemap support

AI Excerpt Generator

Paste post content and get an SEO-optimized WordPress excerpt generated by AI

Login Exposure Checker

Checks if wp-login.php, wp-admin and xmlrpc.php are publicly accessible

DB Prefix Generator

Generate a random secure table prefix to replace wp_ — includes SQL migration and wp-config.php snippet

Convert between length, mass, temperature, speed, area and volume units

Time Zone Converter

"9am Madrid = X in New York" — convert any time between two time zones

Pomodoro / Focus Timer

Customisable Pomodoro timer — set work, short break and long break intervals

Character & Word Counter

Count characters and words with live Twitter, LinkedIn and Instagram limits

Look up your IP or any public IP — country, city, ISP and coordinates

Loan & Mortgage Calculator

Calculate monthly payments, total cost and interest with full amortisation schedule

Calculate exact age or time between two dates in years, months, days and hours

Percentage Calculator

Five-mode calculator — X% of Y, what % is X of Y, % change, add or subtract a %

World Clock / Meeting Planner

Display current time across 12 timezones and find common working hours for meetings

Mortgage Calculator

Monthly payment, total interest and full amortization table. Supports extra payments

Compute tip and split bill — shows per-person amount and comparison across tip percentages

Body Mass Index in metric or imperial — category, scale bar and healthy weight range

Calories Burned Calculator

Calories burned from 35+ activities using MET values. Compare and see food equivalents

Compound Interest Calculator

Investment growth with compounding — add monthly contributions, choose frequency

Reading Time Estimator

Estimate reading time for slow/average/fast readers plus word count and top keywords

Numerology Calculator

Life Path, Expression, Soul Urge and Personality numbers with detailed meanings

Roman Numeral Converter

Convert Arabic ↔ Roman numerals in both directions (1–3999) with nearby reference table

Barcode Generator

Generate Code 128, EAN-13, UPC-A, Code 39 and more barcodes. Download as SVG or PNG

Quote Generator

Create professional client quotes and estimates

Invoice Generator

Generate professional invoices exportable as PDF

Calculate VAT on prices with or without tax included

Income Tax Calculator

Estimate IRPF income tax withholding

Profit Margin Calculator

Calculate gross and net profit margins

Break-even Calculator

Find the exact break-even point for your business

Calculate return on investment and payback period

Selling Price Calculator

Calculate the ideal selling price based on costs and margin

Contract Generator

Generate basic service and freelance contracts

Business Proposal Generator

Create professional business proposals

Privacy Policy Generator

Generate a GDPR-compliant privacy policy

Terms & Conditions Generator

Generate terms and conditions for your website or app

GDPR Clauses Generator

Generate GDPR-compliant data processing clauses

Basic Financial Planner

Plan income, expenses and monthly savings goals