All Tools
87 toolsImage Cropper
Crop images visually with aspect ratio presets and social media sizing.
PNG to JPG Converter
Convert PNG images to JPG format instantly in your browser.
WebP Converter
Convert WebP images to PNG or JPG format instantly in your browser.
JPG to PNG Converter
Convert JPG images to lossless PNG format instantly in your browser.
Image Compressor
Compress PNG, JPG, and WebP images to reduce file size without losing clarity.
EXIF Remover
Strip all metadata from images before sharing — EXIF, GPS, camera info, and more.
Image Resizer
Resize images to exact dimensions with optional aspect ratio locking.
JSON Formatter
Format, beautify, and minify JSON data instantly in your browser.
Base64 Encoder/Decoder
Encode or decode Base64 strings in real time, entirely in your browser.
UUID Generator
Generate random v4 or time-ordered v7 UUIDs in bulk, entirely in your browser.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes of text or files in your browser.
HTTP Status Code Reference
Interactive reference for all standard HTTP status codes with search and filtering.
Cron Expression Generator
Build and decode cron expressions visually with human-readable output and next run times.
Regex Tester
Test regular expressions live with match highlighting, capture groups, and replace mode.
Timestamp Converter
Convert between Unix timestamps and human-readable dates in multiple formats and timezones.
Fraction Calculator
Add, subtract, multiply, or divide fractions with step-by-step solutions. Simplify and convert between fractions, decimals, and percentages.
Ratio Calculator
Simplify ratios, scale to a target, compare ratios, and convert to fractions or percentages. Includes aspect ratio presets.
Exponent & Power Calculator
Calculate x raised to the power of n, with support for negative and fractional exponents, and scientific notation output.
Square Root Calculator
Calculate square roots, cube roots, and nth roots with radical simplification and configurable decimal precision.
Logarithm Calculator
Calculate common log, natural log, binary log, or any custom-base logarithm with antilog support.
GCD & LCM Calculator
Find the greatest common divisor and least common multiple of two or more numbers with step-by-step prime factorization.
Prime Number Tools
Check if a number is prime, find its prime factorization, list primes in a range, or find the Nth prime number.
Factorial Calculator
Calculate n factorial, double factorial, subfactorial, trailing zeros, and digit count with large number support.
Fibonacci Generator
Generate Fibonacci sequences, check if a number is Fibonacci, and see the golden ratio convergence.
Random Number Generator
Generate random numbers, roll dice, flip coins, or pick random items from a list. Cryptographic option available.
Number Base Converter
Convert numbers between binary, decimal, hexadecimal, octal, and any base from 2 to 36 with live updates.
Roman Numeral Converter
Convert between numbers and Roman numerals instantly. Supports 1-3999 with validation, batch mode, and a quick-reference table.
Number to Words Converter
Convert numbers to English words, currency format, or ordinals. Supports very large numbers and multiple currencies.
Percentage Calculator
Calculate percentages instantly — find X% of Y, what percentage X is of Y, or the percentage change between two values.
Statistics Calculator
Calculate mean, median, mode, standard deviation, variance, quartiles, and more from a data set. Includes histogram.
Probability Calculator
Calculate single event, compound, conditional, and Bayes theorem probabilities with formula display.
Permutation & Combination Calculator
Calculate permutations (nPr) and combinations (nCr) with step-by-step formula breakdown and large number support.
Triangle Calculator
Solve triangles by entering sides and angles. Supports SSS, SAS, ASA, AAS modes with area, perimeter, and SVG diagram.
Circle Calculator
Calculate radius, diameter, circumference, and area from any one value. Includes arc length and sector area calculations.
Area & Perimeter Calculator
Calculate area and perimeter for rectangles, squares, triangles, parallelograms, trapezoids, ellipses, and regular polygons.
Volume & Surface Area Calculator
Calculate volume and surface area for cubes, spheres, cylinders, cones, pyramids, and more 3D shapes.
Quadratic Equation Solver
Solve ax2 + bx + c = 0 with real or complex roots, step-by-step solution, vertex, and parabola graph.
Scientific Calculator
A full-featured scientific calculator with trigonometry, logarithms, exponents, memory, and calculation history.
Matrix Calculator
Perform matrix operations including addition, multiplication, determinant, inverse, transpose, and row echelon form.
Grade Calculator
Calculate weighted grades, GPA, and what you need on your final exam. Supports multiple grading systems.
Timezone Converter
Convert times between timezones and compare up to four zones side by side.
Date Difference Calculator
Calculate the exact difference between two dates in years, months, days, and business days.
Age Calculator
Calculate your exact age in years, months, and days with birthday countdown and zodiac sign.
Countdown Timer
Live countdown to any target date or duration with presets, alerts, pause/resume, reminders, and persistence.
Stopwatch
Precise stopwatch with lap times, split tracking, and millisecond accuracy.
Pomodoro Timer
Pomodoro technique timer with customisable work and break durations, session tracking, and audio alerts.
Mortgage Calculator
Calculate monthly mortgage repayments, total interest, and view a full amortisation schedule.
Loan Calculator
Calculate loan repayments, compare rates, and see how extra payments save time and money.
Compound Interest Calculator
Project how your savings grow over time with compound interest, monthly contributions, and different compounding frequencies.
Tip Calculator
Calculate tips instantly with preset percentages, custom amounts, bill splitting, and rounding options.
Reaction Time Test
Test your reaction time with a visual stimulus and track your speed across multiple attempts. See how you rank against human averages.
CPS Test
Measure your clicks per second with a precision click speed test. Choose from 1s to 60s modes and track your best scores.
Keyboard Tester
Test every key on your keyboard with a visual layout. Detect ghosting, check N-key rollover, and verify all keys register correctly.
Mouse Sensitivity Converter
Convert mouse sensitivity between games instantly. Supports CS2, Valorant, Overwatch 2, Apex Legends, and 20+ titles with accurate cm/360 and eDPI calculations.
Crosshair Generator
Design, preview, and export custom crosshairs for CS2, Valorant, and other FPS games. Choose from presets or fine-tune every parameter, then download a transparent PNG or copy console commands.
Gaming Name Generator
Generate unique gamertags, usernames, and gaming names instantly. Choose competitive, funny, fantasy, or clean styles with platform-aware length limits for Xbox, PSN, Steam, and Discord.
Team Randomizer
Randomly split a list of players into balanced teams. Paste names, pick a team count, and get fair groups in one click — no sign-up required.
Mouse Polling Rate Test
Test your mouse polling rate in Hz by moving your mouse across a tracking area. Instantly see your current, average, min, and max Hz with a live interval chart.
Monitor Refresh Rate Test
Detect your monitor's refresh rate by counting real frames rendered in the browser. See your Hz, frame times, and a live motion smoothness test.
Dead Pixel Test
Test your monitor for dead or stuck pixels with fullscreen solid colours. Includes a stuck pixel fixer that rapidly cycles colours to revive unresponsive pixels.
Typing Speed Test
Measure your typing speed in words per minute with timed tests across multiple text modes. Track accuracy, WPM, and personal bests over time.
FOV Calculator
Calculate and convert field of view between horizontal, vertical, and diagonal FOV for any aspect ratio. Includes game presets for CS2, Valorant, Apex, and more.
Tournament Bracket Generator
Create single-elimination tournament brackets instantly. Enter participant names, choose seeding, and generate interactive brackets with click-to-advance winners — no sign-up required.
Aim Trainer
Train your mouse accuracy with flick, precision, and speed modes. Track hits, misses, accuracy percentage, and average reaction time across timed sessions.
Stretched Resolution Calculator
Calculate stretched resolution dimensions for any monitor. Find the perfect 4:3 or 5:4 stretched res for CS2, Valorant, and other competitive FPS games with a live visual comparison.
DPS Calculator
Calculate base, effective, burst, and sustained DPS for any weapon. Factor in attack speed, critical hit chance, magazine size, and reload time. Compare two weapons side by side.
Drop Rate Calculator
Calculate loot drop probabilities, expected farming runs, and dry streak odds. Enter any drop rate and see exactly how many attempts you need for 50%, 90%, or 99% confidence.
D&D Stat Roller
Roll ability scores for D&D 5e characters using 4d6 drop lowest, 3d6 straight, standard array, or point buy. See individual dice, assign scores to abilities, and copy your stats.
Initiative Tracker
Track D&D initiative order, manage HP, apply conditions, and control combat turns. Sort combatants automatically, track rounds, and save encounters to resume later.
Encounter Calculator
Build and balance D&D 5e encounters instantly. Set your party size and level, add monsters by CR, and see real-time difficulty ratings with adjusted XP using official DMG encounter multipliers.
What Is My IP
Discover your public IP address with ISP, location, and timezone details.
WebRTC Leak Checker
Detect if WebRTC exposes your real IP address, even when using a VPN.
Subnet Calculator
Calculate network address, broadcast, host range, and more from CIDR notation.
MAC Address Generator
Generate random MAC addresses with configurable format and address flags.
DNS Lookup
Query all DNS record types for any domain using Cloudflare's DNS-over-HTTPS API.
MX Lookup
Look up mail server (MX) records for a domain and identify the email provider.
SPF Record Checker
Look up and validate SPF records to check email authentication for any domain.
WHOIS Lookup
Look up domain registration details using the modern RDAP protocol.
SSL Certificate Checker
Check SSL/TLS certificate details for any domain using Certificate Transparency logs.