SlimUtils Free Online Tools for Everyday Tasks

Tip Calculator

Calculate tip and split bills between any number of people.

Loan Calculator

Calculate monthly payments, total interest, and amortization schedule.

VAT Calculator

Add or remove VAT for 26 countries. Supports EU, UK, Australia, Canada, and more.

FIRE Calculator

Calculate your Financial Independence number and years to retire early using the 4% rule.

Business Days Calculator

Count business days between dates or add/subtract working days.

Date Duration Calculator

Calculate exact duration between two dates or add/subtract time.

Time Until

Live countdown to any future event — or time since any past date.

QR Code Generator

Create QR codes for URLs, WiFi passwords, vCards, and more.

Meeting Cost Calculator

Calculate the real cost of meetings based on attendee salaries. Live timer shows money spent per second.

Word Counter

Count words, characters, sentences, paragraphs, and reading time.

Case Converter

Convert text to UPPERCASE, camelCase, snake_case, kebab-case, and more.

Password Generator

Generate strong, random passwords using cryptographic randomness.

Due Date Calculator

Calculate pregnancy due date, current week, trimester, and milestones.

Baby Name Meanings

Look up meanings and origins of 5,000+ baby names.

Sibling Name Matcher

Find sibling names that match in style, origin, and sound.

Fake Data Generator

Generate realistic fake names, emails, addresses, and UUIDs for testing.

CSS Gradient Generator

Build linear, radial, and conic CSS gradients visually.

Cron Expression Generator

Build and explain cron expressions with plain-English descriptions and next run times.

Midjourney Prompt Builder

Build optimized AI art prompts with style, lighting, and parameters.

AI Prompt Library

Browse and copy curated ChatGPT prompts for writing, coding, marketing, and more.