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General Tools
Easy-to-understand tools for everyday use. Includes Audio Tools, Image Tools, PDF Tools, Video Tools, Data Tools, Text Tools, Developer Tools, Design Tools, Business Documents, SEO & Web, Calculators, Makers tools.
🎵 Audio Tools (43)
🎵 Stereo/Mono
🎵 Freq Analyzer
🎵 Tone Generator
⭐ Featured
🎵 Drum Machine
🎵 Ringtone Maker
🎵 Time Stretch
🎵 Bitrate Convert
⭐ Featured
🎵 ASMR / 3D Audio
🎵 Sound Effects
🎵 Audio Join
🎵 Silence Remover
🎵 Music Visualizer
🎵 Spectrogram Generator
🎵 Audio Delay Echo
🎵 Chord Progressor
🎵 BPM Counter
🎵 Equalizer
🎵 Volume Boost
🎵 Voice Changer
⭐ Featured
🎵 Random SE
🎵 Key Detector
🎵 Chromatic Tuner
🎵 Voice Recorder
🎵 Audio Noise Reducer
🎵 Bass Booster
🎵 Ambient Sound Mixer
🎵 Audio Compressor
🎵 Audio Fade
🎵 Audio Convert
🎵 Loop Maker
🎵 Audio Normalize
🎵 Pitch Detector
🎵 Audio Reverb
🎵 Audio Reverse
🎵 Audio Trim
🎵 Binaural Beats
🎵 MIDI Player
🎵 Metronome
🎵 Mic Record
⭐ Featured
🎵 System Record
🎵 Text to Speech
🎵 Waveform Image
🎵 White Noise Gen
🖼️ Image Tools (58)
🖼️ Color Replace
🖼️ Watermark Add
🖼️ Lens Correct
🖼️ DPI Converter
🖼️ Image Diff
🖼️ Square Pad
🖼️ Pixel Art Editor
🖼️ Collage Maker
🖼️ Invert Colors
🖼️ ID Photo
🖼️ EXIF Editor
🖼️ Mosaic Maker
🖼️ Image→SVG
🖼️ WebP→PNG
🖼️ Image→ICO
🖼️ Add Text
🖼️ Barcode Gen
🖼️ Blur Image
🖼️ Circle Crop
🖼️ EXIF Remove
🖼️ Favicon Gen
🖼️ Gradient Palette
🖼️ Image Annotate
🖼️ Background Remove
🖼️ Image Border
🖼️ Brightness/Contrast
🖼️ Color Picker
🖼️ Image Compress
🖼️ Image Crop
🖼️ Grayscale
🖼️ Histogram
🖼️ Noise Reduce
🖼️ Perspective Correct
🖼️ Pixelate
🖼️ Image Resize
🖼️ Sepia Filter
🖼️ Sharpen
🖼️ Tilt Shift
🖼️ Image→ASCII
🖼️ Image→Base64
🖼️ Pencil Sketch
🖼️ Image→WebP
🖼️ JPG→PNG
🖼️ JPG→WebP
🖼️ Meme Generator
🖼️ OGP Image Gen
🖼️ Signature Pad
🖼️ Photo Filters
🖼️ Photo Frame
🖼️ Placeholder Image
🖼️ PNG→JPG
🖼️ PNG→WebP
🖼️ QR Code Gen
🖼️ Rotate/Flip
🖼️ Screenshot Beauty
🖼️ SNS Resize
🖼️ SVG→PNG
🖼️ WebP→JPG
📄 PDF Tools (69)
📄 CSV→PDF Table
📄 EPUB→PDF
📄 Excel→PDF
📄 GIF→PDF
📄 HEIC→PDF
📄 HTML→PDF
📄 Image→PDF
📄 JPG→PDF
📄 MD→PDF
📄 PDF Add Blank
📄 PDF Add Links
📄 PDF Annotate
📄 PDF Remove Notes
📄 PDF Background
📄 PDF Bates Number
📄 PDF Remove Blank
📄 PDF Booklet
📄 PDF Bookmark Edit
📄 PDF Compare
📄 PDF Compress
📄 PDF Create
📄 PDF Crop
📄 PDF Delete Pages
📄 PDF Extract Images
📄 PDF Extract Pages
📄 PDF Area Extract
📄 PDF Flatten
📄 PDF Form Create
📄 PDF Form Fill
📄 PDF Halve Pages
📄 PDF Header/Footer
📄 PDF Image Compress
📄 PDF Interleave
📄 PDF Merge
📄 PDF Metadata
📄 PDF N-Up
📄 PDF Overlay
📄 PDF Page Labels
📄 PDF Page Number
📄 PDF Page Size
📄 PDF Redact
📄 PDF Remove Text
📄 PDF Reorder
📄 PDF Repair
📄 PDF Reverse
📄 PDF Rotate
📄 PDF Split Bookmark
📄 PDF Split
📄 PDF Stamp
📄 PDF OCR
📄 PDF→EPUB
📄 PDF→Excel
📄 PDF Grayscale
📄 PDF→HTML
📄 PDF→Image
📄 PDF→PDF/A
📄 PDF→PPTX
📄 PDF→Text
📄 PDF→Word
📄 PDF Viewer Prefs
📄 PDF Watermark
📄 PNG→PDF
📄 PDF Sign
📄 PDF Editor
📄 SVG→PDF
📄 Text→PDF
📄 TIFF→PDF
📄 WebP→PDF
📄 Word→PDF
🎬 Video Tools (23)
🎬 Reverse Video
🎬 FPS Convert
🎬 Green Screen
🎬 Timelapse
🎬 Video→MP3
🎬 Aspect Ratio
🎬 Thumbnail Maker
🎬 Color Grading
🎬 Video Compress
🎬 Video Convert
🎬 Video Crop
🎬 Video Join
🎬 Loop Maker
🎬 Video Mute
🎬 Video PiP
🎬 Video Resize
🎬 Video Rotate/Flip
🎬 Side by Side
🎬 Speed Ramp
🎬 Subtitle Burn
🎬 Video→GIF
🎬 Video Trim
🎬 Watermark Add
📊 Data Tools (35)
📊 OpenAPI Viewer
📊 Protobuf Decode
📊 Percentage Calc
📊 CSV Columns
📊 Meeting Cost
📊 Aspect Ratio Calc
📊 Barcode Scan
📊 Batch Rename
📊 Business Card
📊 Byte Convert
📊 Compound Interest
📊 CSV Cleaner
📊 CSV→TSV
📊 CSV→XML
📊 Data Anonymizer
📊 Excel→JSON
📊 Flowchart
📊 Gantt Chart
📊 GraphQL Format
📊 Histogram
📊 JSON Graph
📊 JSON→CSV
📊 JSON→YAML
📊 Matrix Calc
📊 Mind Map
📊 Pomodoro Timer
📊 Scatter Plot
📊 Sci Calculator
📊 SQL→CSV
📊 Statistics Calc
📊 TSV/CSV Viewer
📊 TSV→CSV
📊 Unit Convert
📊 WiFi QR Gen
📊 YAML Validate
📝 Text Tools (49)
📝 Text→HTML
📝 Word Frequency
📝 Timezone Convert
📝 Slug Gen
📝 Sitemap XML Generator
📝 Line Ending Convert
📝 OGP Preview
📝 Text Wrap
📝 HTML→Text
📝 Morse Code
📝 SNS Character Counter
📝 htaccess Redirect Generator
📝 Text Repeater
📝 Text Diff Merger
📝 Tab/Space
📝 Base32 Encoder Decoder
📝 CSS Minify
📝 Text Encrypt
📝 CSP Header Generator
📝 Regex Visual Builder
📝 Base64→Text
📝 Binary/Text
📝 Code Formatter
📝 CSS Animation Generator
📝 Date Diff
📝 Dedup Lines
📝 Emoji Picker
📝 Width Convert
📝 Hidden Char Clean
📝 Kana Convert
📝 HTML Minify
📝 HTML→MD
📝 HTTP Header Analyzer
📝 JS Minify
📝 JWT Token Generator
📝 Line Numbers
📝 Line Sort/Dedup
📝 Lorem Ipsum Gen
📝 MD Preview
📝 Meta Tag Generator
📝 Remove Diacritics
📝 Roman Numeral
📝 Password Gen
📝 Structured Data Generator
📝 Text Case Convert
📝 Text Diff
📝 Text Reverse
📝 Unix Timestamp
📝 Word Count
🛠️ Developer Tools (31)
🛠️ Unicode Normalize
🛠️ SemVer Compare
🛠️ OpenSearch Gen
🛠️ CIDR→IP Range
🛠️ .gitignore Gen
🛠️ Chmod Calc
🛠️ Cookie Parser
🛠️ Crontab Gen
🛠️ Clip-Path
🛠️ CSS Grid Gen
🛠️ Data URL Gen
🛠️ HTML Escape
🛠️ HTTP Status
🛠️ IBAN Validate
🛠️ INI→JSON
🛠️ JSON Diff
🛠️ JSON Key Sort
🛠️ JSON Minify
🛠️ JSON Schema Gen
🛠️ JSON→Go
🛠️ JSON→Python
🛠️ JSONL→JSON
🛠️ Preload Tag Gen
🛠️ Punycode Convert
🛠️ Query String Parse
🛠️ TOML↔JSON
🛠️ TS→JS
🛠️ Unicode Escape
🛠️ URL Encode/Decode
🛠️ URL Parser
🛠️ XML↔JSON
🎨 Design Tools (14)
📋 Business Documents (5)
🌐 SEO & Web (14)
🧮 Calculators (175)
🧮 Probability Calc
🧮 Wedding Budget
🧮 Unit Price Compare
🧮 Gas Cost
🧮 Gacha Probability
🧮 Travel Time
🧮 Tax Loss Harvest
🧮 Pension Sim
🧮 Blood Type Calc
🧮 Concrete Calc
🧮 Lottery Probability
🧮 Complete Gacha
🧮 Name Strokes
🧮 Fraction Simplify
🧮 Alcohol Cost
🧮 Car Tax Calc
🧮 Height Predict
🧮 Coin Flip Prob
🧮 Fuel Cost
🧮 Ratio Convert
🧮 Maternity Pay
🧮 BAC Calc
🧮 Wind Chill Calc
🧮 Childcare Cost
🧮 Margin Calc
🧮 Tip Calc
🧮 Freq Convert
🧮 Dice Probability
🧮 Working Days
🧮 Reading Time Calculator
🧮 Body Surface Area
🧮 Tile Calc
🧮 Macro Calc
🧮 Sound Convert
🧮 Interest Rate Convert
🧮 Resident Tax
🧮 Density Convert
🧮 Electricity Cost
🧮 Perm & Comb
🧮 Circle Area
🧮 Discomfort Index
🧮 Rohrer Index
🧮 Elapsed Time
🧮 Lung Capacity
🧮 Time Calc
🧮 Age Calc
🧮 Age Chart
🧮 Angle Convert
🧮 Appliance Cost
🧮 Area Convert
🧮 Arithmetic Seq
🧮 Basal Metabolism
🧮 Bath vs Shower
🧮 Beauty Weight
🧮 Blood Pressure
🧮 BMI Calculator
🧮 Body Fat Calc
🧮 Break-Even Calc
🧮 Calorie Calc
🧮 CO₂ Calc
🧮 Complex Calc
🧮 Conc Convert
🧮 Countdown Calc
🧮 Crane & Turtle
🧮 Currency Convert
🧮 Cylinder/Cone Vol
🧮 Daily Wage
🧮 Data Size Convert
🧮 Data Speed Convert
🧮 Date Add Calc
🧮 Days Between
🧮 Depreciation Calc
🧮 Discount Calc
🧮 Dividend Calc
🧮 Drop Rate Calc
🧮 Due Date Calc
🧮 Education Cost
🧮 Current Convert
🧮 Energy Convert
🧮 Calorie Burn
🧮 Exponent Calc
🧮 Factoring
🧮 Fibonacci Seq
🧮 FIRE Calc
🧮 Flow Rate Convert
🧮 Force Convert
🧮 Fraction/Decimal
🧮 Freelance Tax
🧮 Fuel Efficiency
🧮 Furusato Tax Calculator
🧮 Future Value
🧮 Gas vs Hybrid
🧮 GCD & LCM
🧮 Geometric Seq
🧮 Gift Tax Calc
🧮 Hardness Conv
🧮 Housing Loan Tax
🧮 Ideal Weight
🧮 iDeCo Tax Calc
🧮 Illum Convert
🧮 Inheritance Calc
🧮 Inheritance Tax
🧮 Japanese Era Convert
🧮 Kaup Index
🧮 Leap Year Check
🧮 Length Convert
🧮 Loan Affordability
🧮 Loan Compare
🧮 Loan Repayment
🧮 Log Calc
🧮 Lum Flux Conv
🧮 Mag Flux Conv
🧮 Markup Calc
🧮 Medical Deduction
🧮 Mortgage Calc
🧮 Moving Cost
🧮 Multi Product
🧮 NISA Simulator
🧮 Overtime Pay
🧮 Ovulation Calc
🧮 Paint Calc
🧮 Parallelogram Area
🧮 Pet Age
🧮 Points vs Discount
🧮 Power Convert
🧮 Pregnancy Week
🧮 Present Value
🧮 Pressure Convert
🧮 Prime Factor
🧮 Prorated Calc
🧮 Protein Calc
🧮 Pythagorean Calc
🧮 Quadratic Eq.
🧮 Dose Convert
🧮 RE Yield Calc
🧮 Rent Afford
🧮 Retirement Calc
🧮 ROI Calc
🧮 Rokuyo Calendar
🧮 Running Pace
🧮 Salary Calc
🧮 Salary Convert
🧮 Savings Calc
🧮 Savings Goal
🧮 Sector Area
🧮 Simple Interest
🧮 Sim. Equations
🧮 Sleep Cycle
🧮 Social Insurance
🧮 Speed Convert
🧮 Split Bill
🧮 Stamp Duty Calc
🧮 Stopwatch
🧮 Tatami/Sqm
🧮 Tax Calc
🧮 Temperature Convert
🧮 Time Unit Convert
🧮 Torque Convert
🧮 Trapezoid Area
🧮 Triangle Area
🧮 Trig Calc
🧮 TV Size Calc
🧮 Unemployment Calc
🧮 Viscosity Conv
🧮 Voltage Convert
🧮 Volume Calc
🧮 Volume Convert
🧮 Walking Calorie
🧮 Wallpaper Calc
🧮 Water Intake
🧮 Weekday Calc
🧮 Weight Convert
🧮 Withholding Tax
🧮 Withholding Tax
🧮 Zodiac Calc