Free Online Tools and Calculators
Browse every UtilitySuite browser-based utility: calculators, text tools, developer utilities, time and date tools, image tools and converters. Tools are free, fast, and require no signup.
Text & Writing
- Word Counter — real-time word, character, sentence and paragraph counts as you type.
- Case Converter — convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case and more.
- PDF Word Counter — count words and characters inside an uploaded PDF document.
Time & Date
- Time Zone Converter — convert times between world time zones instantly.
- Days Calculator — count days, weeks and months between two dates.
- Age Calculator — calculate exact age in years, months and days from a birth date.
- Virtual Timer — a countdown timer and stopwatch for any task.
- Moon Phase — see the current moon phase and lunar calendar.
Calculators
- Percentage Calculator — work out percentages, increases and decreases.
- BMI Calculator — standard and smart Body Mass Index with body-fat estimate.
- Unit Converter — convert length, weight, temperature, volume and more.
- Interest Calculator — simple and compound interest projections.
- Grade Calculator — calculate a course grade from weighted assignments.
- Final Grade Calculator — find the exam score you need for a target grade.
- GPA Calculator — compute grade point average across courses.
- Paycheck Calculator — estimate take-home pay after deductions.
- Salary Calculator — convert between hourly, weekly, monthly and annual pay.
- Mortgage Calculator — estimate monthly mortgage payments and total interest.
- Loan Calculator — calculate loan repayments and amortization.
- Tax Calculator — estimate income tax owed.
- Tip Calculator — split a bill and calculate tip per person.
Media & Design
- Color Palette Generator — build harmonious color schemes and export hex codes.
- Image Resizer — resize and compress images in your browser.
- Image Collage Maker — combine photos into custom-layout collages with spacing, rounded corners and backgrounds.
- QR Code Generator — create downloadable QR codes from text or URLs.
Developer Tools
- JSON Formatter — format, validate and minify JSON.
- UUID Generator — generate version 4 UUIDs in bulk.
- Password Generator — strong random passwords and memorable passphrases.
- Regex Tester — test regular expressions with live match highlighting.
- JWT Decoder — decode and inspect JSON Web Tokens.
- Base64 Encoder / Decoder — encode and decode Base64 strings.
- URL Encoder / Decoder — percent-encode and decode URLs.
- Hash Generator — generate MD5, SHA-1 and SHA-256 hashes.
- Cron Generator — build and explain cron schedule expressions.
- DNS Lookup — query A, AAAA, MX, TXT and other DNS records.
- WHOIS Lookup — look up domain registration details.
- SSL Checker — inspect a website's SSL/TLS certificate.
Retro Games
- Snake — the classic grid snake game.
- Minesweeper — the classic mine-clearing puzzle.
- Asteroids — the classic vector space shooter.
UtilitySuite focuses on practical keyword-intent tools: calculators, converters, generators, formatters, counters, lookup tools and browser games.