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
Validate, format, and minify JSON data instantly.
Base64 Encoder
Encode and decode Base64 strings entirely in your browser.
URL Encoder
Percent-encode and decode URL strings and query parameters.
Hash Generator
Generate SHA-256, SHA-512, SHA-1, and MD5 checksums.
JWT Decoder
Inspect JSON Web Tokens and read their claims locally.
Regex Tester
Test regular expressions with live match highlighting.
UUID Generator
Bulk-generate cryptographically random UUID v4 IDs.
Timestamp Converter
Convert between Unix timestamps and human-readable dates.
CSS Minifier
Minify CSS to reduce size or beautify it for readability.
HTML Viewer
Render and preview HTML live in a sandboxed iframe.
Text & Writing
Tools for writers, editors, and content creators - count, transform, convert.
Word Counter
Count words, characters, sentences, and reading time.
Case Converter
Switch between UPPER, lower, Title, camel, snake, kebab cases.
Lorem Ipsum
Generate placeholder text by paragraph, sentence, or word.
Markdown Preview
Live Markdown editor with tables, images, and inline HTML.
Markdown to HTML
Convert Markdown to clean HTML source you can paste anywhere.
HTML to Markdown
Turn HTML back into clean GitHub-flavored Markdown.
MD to WhatsApp
Format Markdown for WhatsApp - bold, italics, lists, and code.
Generators
Create secure secrets, codes, manifests, and more.
Password Generator
Create strong, random passwords with custom rules.
Secret Generator
Generate secure random secrets for apps and APIs.
QR Generator
Generate customizable QR codes for any URL or text.
PWA Generator
Generate icons and manifest for Progressive Web Apps.
SEO Generator
Build optimized meta tags and Open Graph data.
Files & Media
Convert images, split PDFs, and pick colors.
Daily Life
Helpful calculators and reference tools for everyday use.
Age Calculator
Calculate exact age in years, months, weeks, and days.
Duration Calculator
Find the exact time between two dates or two times.
BMI Calculator
Compute Body Mass Index in metric or imperial units.
Tip Calculator
Calculate tips and split bills evenly between people.
Unit Converter
Convert length, weight, temperature, volume, and more.
Loan / EMI Calculator
Estimate monthly payments, interest, and amortization.
Discount Calculator
Find sale prices, savings, and tax-inclusive totals.
Currency Converter
Convert currencies with up-to-date exchange rates.
World Info
Browse countries, states, and cities with rich data.
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.