Free Online Tools for Everyone
A growing collection of fast, beautiful, privacy-friendly utilities for developers, designers, and everyday tasks - all in one place, no signup, no ads.
Developer Tools
Speed up daily coding with formatters, encoders, and debuggers.
JSON Formatter & Validator
Validate, format, and minify JSON data instantly in your browser. Syntax highlighting and error detection included.
Base64 Encoder & Decoder
Encode text or files to Base64 and decode Base64 strings back to plain text instantly. Free, fast, 100% client-side.
URL Encoder & Decoder
Encode URLs and decode percent-encoded strings online. Convert special characters to safe URL formats.
Hash Generator (SHA-1, SHA-256, SHA-512, MD5)
Generate SHA-1, SHA-256, SHA-384, SHA-512 and MD5 hashes from any text. Runs locally in your browser.
JWT Decoder & Inspector
Decode JSON Web Tokens to inspect their header, payload, and signature. Runs entirely in your browser.
Regex Tester & Debugger
Test regular expressions against sample text with real-time match highlighting and capture groups.
UUID & GUID Generator
Generate random UUID v4 / GUID values in bulk. Cryptographically secure identifiers for your apps.
Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and back. Supports seconds, milliseconds, and ISO 8601.
CSS Minifier & Beautifier
Minify CSS to shrink file size, or beautify minified CSS to make it readable. Instant, browser-side.
HTML Viewer & Live Preview
Paste HTML and see it rendered live in a sandboxed iframe. Toggle scripts on/off and preview instantly.
Text & Writing
Tools for writers, editors, and content creators - count, transform, convert.
Word Counter
Count words, characters, sentences, paragraphs, and reading time instantly. Free online text analysis tool.
Text Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences, or words. Customizable for designers.
Markdown Previewer & Editor
Live Markdown preview with side-by-side editor. Supports headings, lists, code blocks, and tables.
Markdown to HTML Converter
Turn Markdown into clean, ready-to-paste HTML. Live preview with optional pretty-printing.
HTML to Markdown Converter
Convert HTML into clean Markdown with full GitHub-flavored support: tables, code blocks, and lists.
Markdown to WhatsApp Formatter
Format Markdown for WhatsApp: bold, italic, lists, and code. Instant conversion, no signup.
Generators
Create secure secrets, codes, manifests, and more.
Password Generator
Create strong, random passwords with custom rules. 100% client-side - passwords never leave your device.
Secret Key Generator
Generate secure random secrets for apps, APIs, and environment variables. Cryptographically random.
QR Code Generator
Generate customizable QR codes for any URL or text, free and instant. Download as PNG or SVG.
PWA Generator
Generate icons and manifest for Progressive Web Apps instantly. Upload one image, get all sizes.
SEO Meta Tag Generator
Build optimized meta tags and Open Graph data for better search engine visibility.
Files & Media
Convert images, split PDFs, and pick colors.
Image Converter
Convert images between PNG, JPG, WebP, AVIF and more with quality control. Fast server-side conversion.
PDF Splitter
Split PDFs by page ranges and download custom selections. Simple, fast, and free.
Color Converter & Picker (HEX, RGB, HSL)
Pick colors and convert between HEX, RGB, RGBA, and HSL formats. Live preview with copy-to-clipboard.
Daily Life
Helpful calculators and reference tools for everyday use.
Age Calculator
Calculate your exact age in years, months, weeks, and days from any birthdate. Free and runs entirely in your browser.
Date & Time Duration Calculator
Calculate the time between two dates or two times: years, months, days, hours, and minutes.
BMI Calculator
Calculate Body Mass Index in metric or imperial units and see your WHO category instantly.
Tip Calculator & Bill Splitter
Quickly compute the tip on any bill and split it across multiple people.
Unit Converter (Length, Weight, Temperature & More)
Convert length, weight, temperature, volume, area, speed, and time between metric and imperial units.
Loan & EMI Calculator
Estimate monthly payments, total interest, and amortization schedule for any loan or mortgage.
Discount & Sale Price Calculator
Find the final price after a discount, calculate savings, and optionally add sales tax.
Currency Converter
Free online currency converter with up-to-date exchange rates for 150+ world currencies. Convert USD, EUR, GBP, JPY, EGP and more in real time.
World Info
Browse countries, states, and cities with rich geographic and cultural data including currencies, capitals, and languages.
Why Leviro Utils?
Leviro Utils brings together the most useful online tools for developers and everyday tasks in one clean, distraction-free hub. Every tool is engineered to be quick to use, accurate, and respectful of your privacy - most run entirely on your device.
- Free forever, no signup or paywall.
- Mobile-friendly and installable as a PWA.
- Most tools work offline once visited.
- Open source on GitHub - audit the code yourself.