Free Online Tools & Utilities
Explore our collection of free tools and utilities for everyday use. No cost, no ads, no signup required.
PDF Tools
Convert, merge, split, and edit PDF files online for free
Merge PDF
Combine multiple PDF files into one document. Drag and drop to reorder pages before merging.
Split PDF
Extract pages from a PDF or split into multiple documents. Select specific page ranges to download.
PDF to Text
Extract text from PDF documents. Convert PDF content to editable plain text format.
Rotate PDF
Rotate PDF pages 90°, 180°, or 270°. Fix orientation issues on scanned documents.
JPG to PDF
Convert JPG images to PDF documents. Combine multiple images into a single PDF file.
PDF to JPG
Convert PDF pages to high-quality JPG images. Extract all pages or select specific ones.
Organize PDF
Reorder, delete, or duplicate PDF pages. Drag and drop to rearrange your document.
Sign PDF
Add your signature to PDF documents. Draw, type, or upload your signature.
Watermark PDF
Add text or image watermarks to your PDF files. Customize position, opacity, and rotation.
PNG to PDF
Convert PNG images to PDF documents. Combine multiple PNG files into a single PDF.
Delete PDF Pages
Remove unwanted pages from your PDF document. Select specific pages to delete and download the result.
Add Page Numbers to PDF
Add page numbers to your PDF documents. Customize position, format, and starting number.
Redact PDF
Redact sensitive information from PDF documents. Draw boxes over text, images, or data to hide them.
Image Tools
Convert, resize, and optimize images online for free
Image Resizer
Resize images to custom dimensions or percentage. Maintain aspect ratio or set exact size.
Image Compressor
Compress images and reduce file size while maintaining quality. Perfect for web optimization.
Image Cropper
Crop images to custom dimensions or aspect ratios. Trim, cut, and resize photos with precision.
PNG to JPG Converter
Convert PNG images to JPG format instantly. Reduce file size while maintaining quality.
JPG to PNG Converter
Convert JPG images to PNG format with transparency support. High-quality conversion.
WebP Converter
Convert images to WebP format for better compression. JPG, PNG to WebP and vice versa.
PNG to ICO Converter
Convert PNG images to ICO format for favicons and Windows icons. Multiple sizes in one file.
Video & Audio Tools
Compress, trim, and convert video and audio files online for free
Video Compressor
Compress video files to reduce size while maintaining quality. Adjust bitrate and resolution.
Video Trimmer
Trim and cut video clips. Select start and end times to extract the perfect segment.
Audio Extractor
Extract audio from video files. Save as MP3 from any video format.
Audio Converter
Convert audio files between MP3, WAV, OGG, and more formats.
Music Tools
Free online music tools for guitarists, musicians, and producers
Guitar Tuner
Tune your guitar online with real-time pitch detection. Supports Standard, Drop D, Open G, DADGAD, and more tunings. Works in your browser — no app needed.
Chord Library
Look up guitar chord diagrams for hundreds of chords. Browse major, minor, 7th, sus, and more — with fretboard fingering diagrams.
Scale Explorer
Explore guitar scales with an interactive fretboard. Choose any root note and scale type to see the notes and fingering positions.
Metronome
Free online metronome with BPM control, time signatures, and visual beat display. Practice rhythm with an accurate click track in your browser.
BPM Tap Tempo
Tap your screen or press Space to find the BPM of any song. Calculates tempo from your taps in real-time.
Pitch & Frequency Reference
Complete reference table of musical notes and their frequencies. All 128 MIDI notes from C0 to G10 with Hz values and play buttons.
Age Calculators
Calculate ages, date differences, and Korean age online for free
Age Calculator
Calculate your exact age in years, months, weeks, days, hours, and minutes from your date of birth.
Age Difference Calculator
Calculate the exact age difference between two people or dates. Compare birthdays and anniversaries.
Korean Age Calculator
Calculate your Korean age using the traditional East Asian age reckoning system where you are 1 year old at birth.
Math & Finance
Calculate percentages, discounts, BMI, interest, and more online for free
Tip Calculator
Calculate tips and split bills easily. Determine gratuity amounts and per-person costs with customizable tip percentages.
Percentage Calculator
Calculate percentages, find what percent one number is of another, and compute percentage changes.
Discount Calculator
Calculate sale prices, discount amounts, and savings. Find the final price after any percentage off.
BMI Calculator
Calculate your Body Mass Index (BMI) and find your healthy weight range based on height and weight.
Compound Interest Calculator
Calculate compound interest growth on investments and savings. See how your money grows over time.
Unit Converters
Convert between units of length, weight, temperature, and more online for free
Length Converter
Convert between meters, feet, inches, kilometers, miles, centimeters, and more length units.
Weight Converter
Convert between kilograms, pounds, ounces, grams, stones, and more weight units.
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin. Instant temperature conversions.
Speed Converter
Convert between mph, km/h, m/s, knots, and more speed units.
Data Storage Converter
Convert between bytes, KB, MB, GB, TB, and more digital storage units.
Time & Date Tools
Convert time zones, calculate date differences, and manage time online for free
Timezone Converter
Convert time between any time zones worldwide. See the current time in multiple cities at once.
Countdown Timer
Create countdown timers for events, deadlines, and special occasions. Set hours, minutes, and seconds.
Stopwatch
Precise online stopwatch with lap timing. Track elapsed time with start, stop, and reset controls.
Date Difference Calculator
Calculate the exact number of days, weeks, months, and years between any two dates.
Date Add/Subtract
Add or subtract days, weeks, months, or years from any date. Find future and past dates instantly.
World Clock
View the current time across major cities worldwide. Compare time differences at a glance.
Text Tools
Essential utilities for writers, bloggers, and content creators
Color Tools
Pick colors from images, generate palettes, and check contrast online for free
Color Picker from Image
Upload an image and pick colors from any pixel. Get HEX, RGB, and HSL values instantly.
Color Palette Generator
Generate beautiful color palettes from any image. Extract dominant and complementary colors.
Contrast Checker
Check color contrast ratios for accessibility. Verify WCAG AA and AAA compliance for text colors.
QR & Barcode Tools
Generate QR codes and barcodes for free online
Security & Hashing
Generate secure passwords, hash text, and encrypt data online for free
Password Generator
Generate strong, random passwords with customizable length and character sets. Secure and private.
Password Strength Checker
Check how strong your password is. Get detailed feedback on length, complexity, and estimated crack time.
Hash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any text. All processing happens locally.
Text Encryptor
Encrypt text using AES encryption with a password. Your data stays private and never leaves your device.
Random Generators
Generate random numbers, names, colors, dice rolls, and more online for free
Random Number Generator
Generate random numbers within any range. Set minimum, maximum, and quantity of numbers.
Dice Roller
Roll virtual dice online. Choose from d4, d6, d8, d10, d12, d20, and d100 dice.
Coin Flip
Flip a virtual coin online. Get random heads or tails results with a satisfying animation.
Random Color Generator
Generate random colors in HEX, RGB, and HSL formats. Get color inspiration instantly.
List & Data Tools
Sort, shuffle, deduplicate, and manipulate lists and data online for free
List Randomizer
Randomly shuffle any list of items. Perfect for giveaways, team assignments, and random ordering.
Duplicate Remover
Remove duplicate lines from any list. Keep unique items and optionally sort the results.
List Sorter
Sort lists alphabetically or numerically. Choose ascending or descending order.