Aspect Ratio Calculator
Calculate, simplify, and convert aspect ratios for games, videos, images, and displays.
Game DevelopmentFeaturedNew
Smart Toolkit
All Free Online Tools
Browse our growing collection of free online calculators, generators, converters, developer tools, finance tools, image tools, PDF tools and much more.
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Featured Tools
Our most popular and recommended tools.
FOV Calculator
Convert Horizontal FOV to Vertical FOV for Unity, Unreal Engine, FPS games, and ultrawide monitors.
Game DevelopmentFeaturedNew
Texture Memory Calculator
Estimate GPU texture memory usage, compare compression formats, and calculate VRAM requirements instantly.
Game DevelopmentFeaturedNew
Sprite Sheet Calculator
Calculate sprite sheet dimensions, atlas sizes, packing efficiency and estimated texture memory for 2D games.
Game DevelopmentFeaturedNew
All Tools
Browse every tool available on Smart Toolkit.
Password Generator
Generate strong, secure, and customizable passwords instantly.
Security
Aspect Ratio Calculator
Calculate, simplify, and convert aspect ratios for games, videos, images, and displays.
Game DevelopmentFeaturedNew
FOV Calculator
Convert Horizontal FOV to Vertical FOV for Unity, Unreal Engine, FPS games, and ultrawide monitors.
Game DevelopmentFeaturedNew
Texture Memory Calculator
Estimate GPU texture memory usage, compare compression formats, and calculate VRAM requirements instantly.
Game DevelopmentFeaturedNew
Sprite Sheet Calculator
Calculate sprite sheet dimensions, atlas sizes, packing efficiency and estimated texture memory for 2D games.
Game DevelopmentFeaturedNew
QR Code Generator
Generate QR codes instantly for URLs, text, Wi-Fi, contact details, and more.
Utilities
Age Calculator
Calculate your exact age in years, months, weeks, and days instantly.
Utilities
Unit Converter
Convert length, weight, temperature, area, volume, speed, and many other units.
Utilities
BMI Calculator
Calculate your Body Mass Index (BMI) and understand your healthy weight range.
Health
JSON Formatter
Format, validate, beautify, and minify JSON data instantly.
Developer Tools
Text Case Converter
Convert text between uppercase, lowercase, title case, camelCase, snake_case, and more.
Developer Tools
UUID Generator
Generate Version 4 UUIDs individually or in bulk for applications and databases.
Developer Tools
Base64 Encoder / Decoder
Encode and decode Base64 strings instantly in your browser.
Developer Tools
Color Converter
Convert HEX, RGB, HSL, and other color formats with live previews.
Developer Tools
Percentage Calculator
Calculate percentages, percentage increase, percentage decrease, and percentage difference instantly.
Finance
EMI Calculator
Calculate monthly loan EMI, interest payable, and total repayment instantly.
Finance
SIP Calculator
Estimate SIP maturity value, investment amount, expected returns, and wealth gained.
Finance
GST Calculator
Add GST, remove GST, and calculate CGST, SGST, and total invoice value instantly.
Finance
Compound Interest Calculator
Calculate compound interest, investment growth, future value, and annual returns.
Finance
CAGR Calculator
Calculate Compound Annual Growth Rate (CAGR) to measure long-term investment performance.
Finance
FD Calculator
Estimate Fixed Deposit maturity value, total interest earned, and investment returns.
Finance
Lumpsum Calculator
Calculate the future value and estimated returns of a one-time investment.
Finance
Image Converter
Convert PNG, JPG, JPEG, WEBP, ICO, and other image formats directly in your browser.
Image Tools
Image Compressor
Compress JPG, PNG, JPEG, and WEBP images while maintaining excellent quality.
Image Tools
Image Resizer
Resize images online without losing quality for websites, social media, and documents.
Image Tools
Image Cropper
Crop images online with custom dimensions and popular aspect ratios.
Image Tools
PDF Merger
Merge multiple PDF files into a single organized PDF document.
PDF Tools
Image to PDF
Convert JPG, PNG, WEBP, and other image formats into PDF documents instantly.
PDF Tools
PDF Splitter
Split large PDF documents into smaller files or extract selected pages.
PDF Tools
PDF to Image
Convert PDF pages into high-quality PNG or JPG images online.
PDF Tools
PDF Page Extractor
Extract selected pages from PDF documents without affecting the original file.
PDF Tools
YouTube Tags Generator
Generate relevant and SEO-friendly YouTube tags to improve your video's discoverability.
Creator Tools
YouTube Title Generator
Generate engaging YouTube titles that attract more clicks while matching your content.
Creator Tools
YouTube Description Generator
Create SEO-friendly YouTube video descriptions with clear structure and relevant keywords.
Creator Tools
Instagram Bio Generator
Generate creative and professional Instagram bios for personal and business profiles.
Creator Tools
Username Generator
Generate unique, memorable usernames for gaming, social media, and online accounts.
Creator Tools
Hashtag Generator
Generate relevant hashtags to increase the visibility of your social media posts.
Creator Tools
LinkedIn Headline Generator
Create professional LinkedIn headlines that highlight your skills and improve your profile.
Creator Tools
Social Media Caption Generator
Generate engaging captions for Instagram, Facebook, LinkedIn, X, and other social platforms.
Creator Tools