# Tools Multiverse > Free online tools for everyday life — 30+ utilities that run entirely in your browser. No signup, no tracking, no ads on tool pages, 100% free forever. Tools Multiverse is part of the Multiverse family of independent free hubs alongside Cars Multiverse (carsmultiverse.com), Studies Multiverse (studiesmultiverse.com), and Collectibles Multiverse (collectiblesmultiverse.com). ## What Tools Multiverse offers All tools are: - 100% free with no premium tier - No signup or account required - Privacy-first — every tool runs locally in the user's browser, inputs and outputs never leave the device - Fast — most pages load in under a second - Mobile-friendly and accessible ## Available tools (30 total) ### Developer Tools - Password Generator (/password-generator/) — cryptographically secure password generator with customizable length and character types - UUID Generator (/uuid-generator/) — RFC 4122 UUID v4 generator, single or bulk - Base64 Encoder & Decoder (/base64-encoder/) — Unicode-safe Base64 conversion - JSON Formatter (/json-formatter/) — pretty-print, minify, validate JSON - URL Encoder & Decoder (/url-encoder/) — percent-encode URLs - Regex Tester (/regex-tester/) — test regular expressions with live highlighting - Hash Generator (/hash-generator/) — MD5, SHA-1, SHA-256, SHA-384, SHA-512 - JWT Decoder (/jwt-decoder/) — decode JSON Web Tokens - CSV to JSON Converter (/csv-to-json/) — bidirectional CSV/JSON conversion - Image to Base64 (/image-to-base64/) — convert images to data URLs ### Text Tools - Word Counter (/word-counter/) — count words, characters, sentences, reading time - Case Converter (/case-converter/) — upper, lower, title, camel, snake, kebab - Text Diff Checker (/text-diff/) — compare two texts with highlighted changes - Markdown Preview (/markdown-preview/) — live Markdown to HTML rendering - Lorem Ipsum Generator (/lorem-ipsum-generator/) — placeholder text - URL Slug Generator (/slug-generator/) — SEO-friendly URL slugs from titles - Email Extractor (/email-extractor/) — extract emails from any text - Social Character Counter (/social-char-counter/) — character limits for X, Bluesky, Mastodon, LinkedIn, Threads, Instagram, Facebook ### Calculators - BMI Calculator (/bmi-calculator/) — body mass index, metric and imperial - Percentage Calculator (/percentage-calculator/) — percent of, percent change - Age Calculator (/age-calculator/) — exact age in years, months, days - Unit Converter (/unit-converter/) — length, mass, volume, temperature, speed ### Generators - Password Generator (/password-generator/) - UUID Generator (/uuid-generator/) - QR Code Generator (/qr-code-generator/) — QR codes for URLs, text, contacts, Wi-Fi - Random Number Generator (/random-number-generator/) — cryptographically secure random numbers ### Finance Tools - Loan & Mortgage Calculator (/loan-calculator/) — monthly payments and full amortization schedule - Tip Calculator (/tip-calculator/) — calculate tip and split bills - Percentage Calculator (/percentage-calculator/) ### Time Tools - Timezone Converter (/timezone-converter/) — convert times across multiple timezones with DST handling - Age Calculator (/age-calculator/) ### Design Tools - Color Picker & Converter (/color-picker/) — HEX, RGB, HSL conversion - CSS Box Shadow Generator (/box-shadow-generator/) — visual shadow builder with copyable CSS - CSS Gradient Generator (/gradient-generator/) — linear and radial gradient builder - Image to Base64 (/image-to-base64/) - QR Code Generator (/qr-code-generator/) ## Privacy All tools run client-side in the user's browser. No data is sent to servers. No accounts. No tracking of tool inputs or outputs. See /privacy-policy-2/ for full details. ## Sister sites - Cars Multiverse (carsmultiverse.com) — 98,000+ automotive listings across 132 countries - Studies Multiverse (studiesmultiverse.com) — 10,200+ international study options worldwide - Collectibles Multiverse (collectiblesmultiverse.com) — identify, value, and collect rarities ## Contact - Email: hello@toolsmultiverse.com - Contact form: /contact/ ## License Tool outputs (generated passwords, JSON, QR codes, etc.) belong to the user. Site content and design © Tools Multiverse.