Every tool on OmniTool

All 60 utilities, grouped by what they do. Each one has its own page with a short guide, worked examples and answers to the questions people usually ask. Nothing here requires an account, and nothing you type is uploaded — every tool runs in your own browser.

Developer & Code (10)

Formatters, validators and decoders for the data formats you meet in an average day of writing software.

JSON Formatter & Validator XML Formatter & Beautifier Base64 Encoder & Decoder URL Encoder & Decoder HTML Entity Encoder & Decoder Hash Generator - MD5, SHA-1, SHA-256, SHA-512 Regex Tester & Debugger JWT Decoder Markdown Editor & Live Preview UUID Generator (Version 4)

Browser & Network (6)

Find out what your browser is telling websites about you, look up DNS records, and decode HTTP responses.

Browser Info - What Your Browser Reveals IP Address & Geolocation Lookup HTTP Header Inspector HTTP Status Code Reference Port Reachability Checker DNS Lookup & WHOIS

Text Utilities (8)

Counting, comparing, transforming and generating text - the small jobs that interrupt writing and editing.

Text Case Converter Word & Character Counter Text Diff Checker Text Repeater, Deduplicator & Sorter Lorem Ipsum Generator Palindrome Checker Text to Speech Speech to Text

AI Tools (4)

Summarise, rewrite and explain text using your own API key. The key stays in your browser and calls go straight to the provider.

AI Text Summarizer AI Paraphraser AI Grammar & Spelling Fixer AI Code Explainer

Converters (8)

Convert between units, formats, number bases, colour notations, currencies and time zones.

Unit Converter Unix Timestamp Converter Number Base Converter CSV to JSON Converter Colour Converter - HEX, RGB, HSL Currency Converter Image to Base64 Converter Timezone Converter & World Clock

Generators & Security (4)

Create strong passwords, barcodes and random data, and check how long a password would survive an attack.

Random Password Generator Password Strength Checker Barcode Generator Random Number & Data Generator

General Calculators (3)

Everyday arithmetic that is fiddly to do in your head: body mass index, exact ages, percentage changes.

BMI Calculator Age Calculator Percentage Calculator

Design & Colors (6)

Colour schemes, CSS gradients, image conversion, QR codes and favicons, all handled locally on your device.

Colour Palette Generator CSS Gradient Generator Image Converter, Resizer & Compressor QR Code Generator SVG Optimizer Favicon Generator

Financial Calculators (6)

Model returns on investments and the true cost of loans, with the formulas and their assumptions written out.

SIP Calculator Lumpsum Investment Calculator EMI Calculator Compound Interest Calculator Retirement Planning Calculator Inflation Calculator

Webmaster & SEO (5)

Generate the files and markup search engines read: robots.txt, sitemaps, meta tags and structured data.

Robots.txt Generator XML Sitemap Generator .htaccess Generator Meta Tag Generator Schema Markup Generator