UtilitySuite — 41 Free Online Tools, Calculators & Retro Games

UtilitySuite is a free collection of 38 browser-based utilities and 3 classic arcade games, presented in a retro desktop interface. Every tool runs entirely in your browser — nothing to install, no sign-up, no cost. Choose a tool below or use the Tools menu.

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.
• Image Converter — convert images between PNG, JPG, JPEG, WebP, GIF, BMP, TIFF and PDF in your browser.
• QR Code Generator — create downloadable QR codes from text or URLs.
• Meme Maker — caption popular meme templates or your own image and download as PNG.

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.

Privacy Policy

Focused Collections

• Student Calculators & Study Tools — GPA, final grade, grade, percentage, word count and timer tools.
• Developer Tools — JSON, regex, UUID, JWT, Base64, URL, hash, cron, DNS, WHOIS and SSL tools.
• Writing Tools — word count, PDF word count, case conversion and focused writing timers.
• Finance Calculators — mortgage, loan, interest, tax, paycheck, salary, percentage and tip calculators.
• Creator & Image Tools — color palettes, image resizing, collages and QR codes.
• Share UtilitySuite — short copy and directory listing text for recommending the site.