Complete Tool Directory
Discover all 80 in-browser utilities across 12 specialized domains. Star your favorites for rapid access.
config/ads.ts to display live campaigns.JSON Formatter & Validator
Format, validate, repair, and minify JSON data instantly.
JWT Decoder & Inspector
Decode, verify claims, inspect headers, and check token expiry.
IPv4 Subnet & Host Range Calculator
Calculate network address, broadcast, usable host ranges, and binary masks.
Linux File Permissions & Chmod Calculator
Calculate 755, 644 octal and symbolic file permissions with commands.
Interactive Git Commands & Undo Recipes
Generate commands to undo commits, switch branches, stash, and squash.
Dockerfile & Containerfile Generator
Generate production-ready Dockerfiles for Node, Python, Go, Rust, and Nginx.
JSON Deep Structure Diff
Compare two JSON documents with structural hierarchy diffs.
Hex & ASCII Byte Inspector
Inspect text and binary files in canonical 16-byte hex dump format.
Regular Expression (RegEx) Tester
Test regex patterns with flags, group captures, and live matches.
Code & Text Diff Checker
Compare text or source code side-by-side with visual diffs.
cURL Command to Code Converter
Convert cURL commands to JavaScript Fetch, Axios, Python, and Go.
SQL Query Formatter & Beautifier
Beautify, indent, uppercase keywords, and minify SQL queries.
JSON to TypeScript Interface Generator
Generate TypeScript types and interfaces from JSON payloads.
URL Encoder / Decoder & Param Parser
Encode, decode, and visually edit query parameters in real time.
HTML Entity Encoder / Decoder
Convert special characters to named, decimal, or hex HTML entities.
AI Few-Shot Prompt & Dataset Builder
Build structured few-shot examples for Claude XML and OpenAI JSONL.
AI Prompt Engineering & Refiner Studio
Design, refine, and structure prompts for Claude, GPT-4, and Gemini.
AI JSON Schema & Tool Definition Studio
Generate OpenAI Function Calling and JSON Schema from payloads.
RAG Text Chunking & Semantic Splitter
Simulate document chunking strategies for vector embeddings and RAG.
AI Token Counter & Cost Calculator
Estimate token count and API costs for Claude 3.7, GPT-4o, and Gemini 2.0.
Shamir's Secret Sharing (SSS) Splitter & Reconstructor
Split master passwords into M-of-N threshold shares with GF(256) math.
BIP-39 Mnemonic Seed Phrase Generator
Generate cryptographically secure 12, 18, or 24-word seed phrases.
IPv4 Subnet & CIDR Calculator
Calculate network address, broadcast, usable host IP range, and masks.
PBKDF2 Cryptographic Key Derivation Studio
Derive secure keys with customizable iterations, salts, and SHA hashes.
Password Strength & Entropy Analyzer
Calculate Shannon entropy bits and GPU crack time estimations.
X.509 Certificate & PEM Inspector
Decode PEM headers, public keys, and certificate structures.
Content Security Policy (CSP) Builder
Construct and validate HTTP CSP headers and meta tags.
HMAC Keyed-Hash Signature Generator
Generate SHA-256, SHA-512, SHA-384, and SHA-1 HMAC signatures.
Apache .htaccess & Nginx Redirect Builder
Generate 301 redirects, force HTTPS, non-www, and cache headers.
Social Meta Tags & OpenGraph Studio
Generate OpenGraph and Twitter Card meta tags with live previews.
JSON-LD Schema.org Structured Data Generator
Create rich snippet JSON-LD for Articles, Organizations, FAQs, and Products.
XML Sitemap Generator & Builder
Create search-engine compliant XML sitemaps with priorities and dates.
Robots.txt & Sitemap Builder
Generate search engine crawl rules and robots.txt directives.
Image to PDF Converter
Convert PNG, JPEG, and WebP images to multi-page PDF documents.
PDF Metadata & Security Inspector
Inspect PDF version, encryption, page counts, and metadata privately.
PDF Page Extractor & Splitter
Extract specific page ranges or split PDF documents locally.
Network Bitrate & File Transfer Duration Calculator
Calculate exact file download & transfer times across bandwidth speeds.
Data Storage & Memory Unit Converter
Convert Bytes, KB, MB, GB, TB, PB with binary vs decimal bases.
CSV ↔ JSON Converter
Convert CSV to JSON and JSON to CSV with custom delimiters and exports.
Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 back to text.
PX to REM Converter
Convert pixels to rem and em values with custom base font size.
RegEx Find & Replace Substitution Studio
Perform regex find & replace with capture groups ($1, $2) and flag controls.
Text Sanitizer & White Space Cleaner
Strip non-ASCII, collapse spaces, remove trailing, and fix smart quotes.
Word & Character Counter
Live statistics: words, characters, sentences, paragraphs, and reading time.
Morse Code Translator & Audio Synthesizer
Translate text to Morse code and play real-time audio beeps.
String Escaper & Unescaper
Escape strings for JavaScript, SQL, RegEx, HTML, Shell, and CSV.
List Sorter & Deduplicator
Sort alphabetical, natural numeric, deduplicate, and clean lists.
Text Case Converter
Convert text to uppercase, lowercase, title case, camelCase, snake_case, and kebab-case.
URL Slug & Permalink Maker
Convert titles into clean, SEO-friendly URL slugs with custom separators.
Markdown Live Editor & Preview
Write, preview, format, and export Markdown to clean HTML in real time.
Lorem Ipsum & Dummy Text Studio
Generate custom paragraphs, sentences, words, and HTML placeholder lists.
Image Converter & Compressor
Convert and compress WebP, PNG, and JPEG images locally.
Circular / Avatar Image Cropper
Crop images into round avatar circles with zoom and transparency.
Favicon & Web App Icon Generator
Generate multi-size web, Apple Touch, and Android PWA favicons.
SVG Optimizer & Code Minifier
Clean, minify, and sanitize SVG files and markup locally.
RFC 9562 UUID v7 Generator & Inspector
Generate time-ordered monotonic UUID v7 identifiers with timestamps.
Secure Password Generator
Generate cryptographically secure random passwords and passphrases.
Luhn Algorithm & Card Checksum Validator
Validate payment card numbers and identify issuers offline.
QR Code Studio & Generator
Create custom QR codes with custom colors, dimensions, and PNG export.
Cryptographic Hash Generator
Generate SHA-256, SHA-512, SHA-384, and SHA-1 hashes for text and files.
CSS Box Shadow & Neu-morphic Studio
Design multi-layer CSS box shadows with blur, spread, and inset.
Color Converter & Contrast Checker
Convert between HEX, RGB, HSL and test WCAG 2.1 contrast ratios.
CSS Linear & Radial Gradient Studio
Design multi-stop CSS gradients with angles and live visual preview.
Harmonious Color Palette Generator
Generate monochromatic, complementary, analogous, and triadic palettes.
Unix Timestamp & Epoch Converter
Convert between Unix timestamps and human-readable UTC/ISO dates.
World Timezone & Date Difference Calculator
Convert times across world timezones and compute exact business days.
Visual Cron Expression Builder & Explainer
Construct crontab schedules with human-readable English explanations.
SIP & Dollar-Cost Averaging (DCA) Investment Calculator
Forecast compounding wealth creation from monthly recurring investments.
Inflation & Purchasing Power Calculator
Calculate future equivalent costs and cash purchasing power erosion.
Hourly Wage & Salary Take-Home Calculator
Convert hourly rate, weekly paycheck, monthly earnings, and annual salary.
Percentage Calculator
Solve percentage increases, decreases, fractions, and discounts.
Compound Interest & Investment Calculator
Calculate future investment value with recurring contributions.
Trip Fuel & Commute Cost Calculator
Calculate fuel volume, trip expenses, and split costs per person.
Bandwidth & Data Transfer Calculator
Calculate download and upload duration for any file size and speed.
Discount & Sales Tax / VAT Calculator
Calculate final prices, coupon savings, and sales tax or VAT.