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Every tool and page on Toolcloak in one place.
Last updated: October 7, 2026
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- The “average” salary says ₹70,000, but most people there earn ₹32,000. Mean, median and mode explained.
- Your photo may be carrying your home address. Here is how to check.
- The Pomodoro method, with the numbers: what 25 minutes on, 5 off really adds up to.
- Weighted average calculator: how to find an average when some values count more than others
- Pro-rata calculator: how to work out rent, salary or fees for part of a month or year
- Commission calculator: how to work out sales commission, a bonus rate above target and total pay
- Final grade calculator: how to find the score you need on the final exam to reach your target grade
- Speed, distance and time calculator: how to find speed, distance or travel time, and why average speed is not a simple average
- Profit margin calculator: how to work out margin, profit and markup, and set a price for a target margin
- Working days calculator: how to count business days between two dates and why holidays change the answer
- Days until a date: how to count days, weeks and months to an event, and plan backwards from it
- Unit price calculator: how to compare pack sizes and find the real best buy per gram or per litre
- GPA calculator: how to work out your grade point average, weighted by credits, and plan the next term
- Down payment calculator: how much to put down on a home and what it does to your EMI and total interest
- Overtime pay calculator: how to work out your hourly rate, the multiplier and what extra hours are worth
- EV vs petrol savings calculator: running cost per km and how long the extra price takes to pay back
- Freelance rate calculator: how to set an hourly rate that covers tax, expenses and time off
- Rental yield calculator: gross vs net yield, payback years and whether a rental flat is worth it
- How to calculate your exact age in years, months and days, and why leap years and cut-off dates matter
- Subscription cost calculator: how small monthly payments add up, and how to audit them
- How to calculate your net worth: assets minus debts, and what the number really tells you
- Salary hike calculator: how to work out your new salary and what a raise is really worth
- How to add and remove VAT from a price, and why subtracting the percentage is wrong
- How to calculate a tip and split a bill fairly, with 10%, 15% and 20% shortcuts
- UTM parameters explained: source, medium, campaign and naming rules that keep reports clean
- CGPA to percentage: how to convert with the 9.5 rule and why universities differ
- Quadratic equations explained: the formula, the discriminant and what the roots mean
- Confidence intervals explained: what 95% really means and how sample size shrinks it
- Ohm's law explained: volts, amps, ohms and watts with worked examples
- robots.txt explained: Allow, Disallow, wildcards and the mistakes that block your site
- chmod permissions explained: what 755, 644 and 777 actually mean
- Z-score explained: compare anything on one scale and spot outliers
- Loan amortization schedule explained: why early EMIs are mostly interest
- hreflang tags explained: language codes, x-default and the return-link rule
- Percent error: how far off is your measurement, and how it differs from percent change
- IBAN explained: how the mod-97 check catches typos and what each part means
- sitemap.xml explained: what to include, the 50,000 URL limit and HTML sitemaps
- Waist-to-hip ratio: how to measure it and what the 0.85 and 0.90 lines mean
- Pascal's triangle: patterns, coin flips and the numbers behind combinations
- Linear regression: the best-fit line, slope, intercept and R² explained
- Sample size: how many people do you need to survey?
- Dividend yield explained: the yield trap, payout ratio and the power of reinvesting
- Projectile motion: why 45 degrees throws farthest (and when it does not)
- Pythagorean theorem: the 3-4-5 trick, ladders, TV sizes and how to check a right angle
- Regex from zero: ten patterns and the trap that freezes pages
- EPF: how your provident fund grows over 30 years
- One rep max: estimate your max lift without risking it
- Correlation: what r tells you, and what it never can
- Snowball or avalanche: which way to clear several debts?
- Home loan: where your EMI goes in year 1 and in year 20
- HEX, RGB and HSL: three ways to write the same colour, and which to use
- Half-life: why things fade by half, again and again, and never quite reach zero
- ROI: why a 40% return can beat a 50% return, and what to count
- Averaging down: how buying more at a lower price changes your average, and what it cannot fix
- BMR and TDEE: how many calories your body burns before you lift a finger
- GCD and LCM: Euclid’s 2,300-year-old shortcut, and when two buses meet again
- Permutations vs combinations: when order matters, and why a combination lock is misnamed
- Two dice and a coin: why seven wins, and why a streak proves nothing
- Roman numerals: how MCMXCIV adds up, and why 49 is XLIX, not IL
- Morse code: why E is a single dot and Q takes four signs
- The Fibonacci sequence: from rabbits to the golden ratio, and why slow code loves it
- Celsius, Fahrenheit and Kelvin: the conversion, a mental shortcut, and the one place they agree
- How the 6-digit code in your authenticator app works (TOTP explained)
- Why a 1 TB drive shows 931 GB: KB, KiB, MB and Mbps explained
- The bell curve: the 68-95-99.7 rule, z-scores and what “rare” really means
- Mean vs median vs mode: why “the average salary” is so often misleading
- Recurring deposit: ₹5,000 a month for 5 years, and how the maturity is worked out
- Prime numbers: why they thin out, how to test one, and why your bank depends on them
- AI tokens and API cost: why the bill depends on the answer length and the chat history
- Lumpsum investment: what ₹1 lakh becomes in 10, 20 and 30 years
- Saving for a goal: how much per month to reach ₹10 lakh
- Running pace explained: from min/km to 5K, 10K and marathon times
- Caesar cipher: why only 25 keys means anyone can crack it
- CTC to in-hand salary: where a ₹12 lakh package actually goes
- SWP: how long will ₹1 crore last when you withdraw every month?
- Binary, hex and decimal: counting in bases 2, 10 and 16
- What your appliances cost per month: watts, hours and units explained
- Start at 25 or 35? What waiting ten years really costs
- Markup vs margin: why a 50% markup is only a 33% margin
- HRA exemption: the least of three rules, with a worked example
- Break-even point: how many sales before you make a profit
- Heart rate zones explained: what each of the five zones is for
- CIDR and subnets: what /24, /26 and /20 really mean
- PPF in pictures: ₹1.5 lakh a year for 15 years, and why the last years do the heavy lifting
- A 7% fixed deposit: what is left after tax and inflation
- Percent vs percentage points: the difference behind half the misleading headlines
- HTTP status codes: the five families, and the dozen you will actually meet
- px vs rem: why your font sizes should be allowed to scale
- Reading a cron expression: five fields and six gotchas
- Inside a JWT: three parts, two dots, and why decoding is not the same as trusting
- The gratuity formula (15/26): what your years of service are worth
- Step-up SIP: raise your SIP 10 percent a year and almost double the result
- One extra EMI a year: how a 20-year home loan quietly becomes a 17-year loan
- Password entropy: what “bits” really mean, and why length beats symbols
- The 25x rule: how much money is “enough” to stop working
- 50% off plus 20% off is not 70% off: how stacked discounts really work
- Flesch reading ease: what your readability score really means
- Sleep in 90-minute cycles: when to go to bed so the alarm does not feel like an attack
- Can two UUIDs ever be the same? The odds, in pictures
- How big should an emergency fund be? A simple way to pick your number
- Why 2100 is not a leap year (and 2000 was)
- The rule of 72: how long your money takes to double
- Up 50 percent, down 50 percent, and you are not back to zero
- The minimum payment trap: what a credit card balance really costs
- What your BMI can tell you, and what it cannot
- Average return vs CAGR: why “20 percent a year” is not what you earned
- 16:9, 4:3, 1:1: aspect ratios without cropping surprises
- What a hash is, and why changing one letter changes everything
- Unix time: the number that counts seconds since 1970
- What will ₹1 lakh buy in 2046? Inflation in pictures
- Why your 4 MB photo is really a 400 KB photo
- Your EMI is mostly interest for the first decade. Here is the proof.
- ₹5,000 a month for 20 years: what a SIP calculator can and cannot tell you
- Your password is not weak because it is short. It is weak because it is yours.
- What is actually inside the black squares of a QR code?
- Merging PDFs without posting your documents to a stranger's server
- How long is long enough? A field guide to word and character limits
- What counts as fast typing? (It is not 100 WPM.)
- How to add or remove GST without getting it wrong
- Why your JSON will not parse, and how to find the bad comma
- Is your text readable? The contrast ratio, explained
- Base64 is not encryption, and it makes files a third bigger
Image Tools
- Image Compressor
- Image Converter
- Image Resizer
- Base64 to Image
- Image to Base64
- Image Cropper
- Image Rotator & Flipper
- Photo Filters & Adjustments
- Image Watermark Adder
- Meme Generator
- Favicon Generator
- Image Color Extractor
- Social Media Image Resizer
- Image Splitter (Grid Maker)
- SVG to PNG Converter
- Round Image Corners & Add Border
- Image to Text (OCR)
- Photo Collage Maker
- Passport Size Photo Maker
- Image Blur Tool
- Image Pixelate Tool
- Color Blindness Simulator
- Image EXIF Viewer
- Background Remover
- Image Upscaler
- Add Text to Image
- Photo to Sketch Converter
- HEIC to JPG Converter
- Signature Maker (Draw or Type, Transparent PNG)
- Image Joiner (Merge Pictures into One)
- Image to ASCII Art Converter
- Text to Handwriting Converter (Assignment Writer)
PDF Tools
- PDF to Word
- Merge PDF
- Split PDF into Pages
- Extract PDF Pages
- Delete PDF Pages
- Rotate PDF Pages
- Add Page Numbers to PDF
- PDF Watermark Adder
- Document Scanner
- Image to PDF Converter
- PDF to Image Converter
- Text to PDF Converter
- PDF Page Organizer
- Sign PDF Online
- PDF to Excel Converter
- PDF Metadata Remover
- PDF Form Filler
- PDF Compare Tool
- PDF Multiple Pages per Sheet & Booklet Maker (N-Up)
- Crop PDF (Trim Margins)
- Add Text to PDF
Text Tools
- Word Counter
- Case Converter
- Lorem Ipsum Generator
- Text Diff Checker
- Slug Generator
- Text Repeater
- Line Sorter
- Duplicate Line Remover
- Whitespace Cleaner
- Text Reverser
- Find and Replace
- Line Number Adder
- Text to Binary Converter
- Morse Code Translator
- Word Frequency Counter
- Line Break Remover
- Fancy Text Generator
- Email & URL Extractor
- Number to Words Converter
- Roman Numeral Converter
- Character Counter
- Palindrome Checker
- Anagram Checker
- Upside Down Text Generator
- Strikethrough Text Generator
- Hashtag Generator
- Accent Remover
- List to Comma Separator
- Reading Time Calculator
- Emoji Remover
- NATO Phonetic Alphabet Converter
- Pig Latin Translator
- Caesar Cipher & ROT13
- Add Prefix & Suffix to Lines
- Markdown Remover
- Title Case Converter
- Sentence Counter
- Duplicate Word Finder
- List to Comma Separated Converter
- Text Wrapper
- Leetspeak Converter
- Zalgo Text Generator
- Acronym Generator
- Character Frequency Counter
- Line Shuffler
- Vowel & Consonant Counter
- Readability Score Checker
- Bionic Reading Converter
- Word Sorter
- Punctuation Remover
- Bulk Slug Generator
- Sort Lines by Length
- Stop Words Remover
- Words to Number Converter
- Alternating Case Converter
- Small Text Generator (Superscript, Subscript & Small Caps)
- Blank Text Generator (Invisible Character)
- ASCII Art Text Generator
- Special Symbols & Characters (Copy and Paste)
- Text Summarizer (Free, Offline)
- Mirror Text Generator (Flip Text)
- Vaporwave Text Generator (Wide Text)
- Superscript & Subscript Text Generator
- Underline Text Generator (Copy & Paste)
- Duplicate Character Remover
- Paragraph Counter (Count Paragraphs Online)
- Longest Word Finder
- Pangram Checker (Uses Every Letter?)
- Syllable Counter (Count Syllables Online)
- Smart Quotes Converter (Curly to Straight)
- Extract Text Between Two Characters
- Remove Numbers from Text
- Text Splitter (Split by Length, Words or Lines)
- Empty Line Remover (Delete Blank Lines)
- Text to Hex Converter (and Hex to Text)
- Text to Octal Converter (and Octal to Text)
- Number Sorter (Sort Numbers Online)
- Text Truncator (Shorten to a Set Length)
- Text Indenter (Add or Remove Indentation)
- Bullet List Maker (Numbered & Lettered Lists)
- List Comparator (Compare Two Lists)
- Sentence Splitter (One Sentence per Line)
- Phrase Frequency Counter (2–5 Word Phrases)
- Bubble Text Generator (Circled Letters)
- Cursive Text Generator (Script Font)
- Old English Text Generator (Gothic Font)
- Double-Struck Text Generator (𝕆𝕦𝕥𝕝𝕚𝕟𝕖 Letters)
Developer Tools
- JSON Formatter
- Base64 Encoder
- URL Encoder
- HTML Encoder
- Hash Generator
- Regex Tester
- CSV to JSON
- Number Base Converter
- Timestamp Converter
- Markdown Previewer
- JSON to Table
- Code Minifier
- UUID Generator
- JWT Decoder
- JSON to CSV
- Markdown to HTML
- String Escape / Unescape
- HTTP Status Code Lookup
- Cron Expression Explainer
- HTML to Text Converter
- SQL Formatter
- URL Parser
- JSON Validator
- JSON Path Finder
- URL Decoder
- JSON Minifier
- XML Formatter
- HTML Beautifier
- CSS Formatter
- JSON to XML
- Markdown Table Generator
- Meta Tag Generator
- Chmod Calculator
- IP Subnet Calculator
- Mermaid Diagram Editor
- JSON Key Sorter
- JSON to YAML Converter
- JSON to TypeScript Converter
- JSON Compare Tool
- Base32 Encoder & Decoder
- Robots.txt Generator
- Sitemap XML Generator
- htaccess Redirect Generator
- CSV to SQL INSERT Converter
- HTML Entity Encoder & Decoder
- User Agent Parser
- JSON to Query String
- Screen & Browser Info Checker
- YAML Formatter
- YAML Validator
- YAML to JSON Converter
- XML to JSON Converter
- JavaScript Formatter & Beautifier
- JavaScript Minifier
- HTTP Headers Parser
- DNS Lookup
- CORS Tester
- .gitignore Generator
- Regex Builder
- API Request Builder
- Text to HTML List Converter
- CSV to HTML Table Converter
- HTML to Markdown Converter
- HTML Table Generator
- CSS Minifier
- HTML Minifier
- Fake Data Generator (Test Users JSON/CSV)
- Git Commands Cheat Sheet
- Linux Commands Cheat Sheet
- IP Address Validator (IPv4 & IPv6)
- Excel to JSON Converter
- CSV to Excel Converter
- JSON to Excel Converter
- Excel to CSV Converter
- JSON Schema Generator (from JSON)
- cURL to Fetch / Axios / Python Converter
- SVG Optimizer (Minify & Clean SVG)
- HTML to JSX Converter (React)
- Base58 Encoder & Decoder
- UUID Validator (Check Version & Format)
- CRC32 & Adler-32 Checksum Generator
- Unicode Escape Converter (\uXXXX)
Utility Tools
- QR Code Generator
- Password Generator
- Unit Converter
- Line Counter
- Random Picker
- Random Number Generator
- Dice Roller & Coin Flip
- Password Strength Checker
- WhatsApp Link Generator
- UTM Link Builder
- Stopwatch & Countdown Timer
- Text to Speech
- Luhn Number Validator
- Email Address Validator
- Random String Generator
- Username Generator
- Time Zone Converter
- Indian Number Format Converter
- Emoji Picker (Copy and Paste Emojis)
- Random Name Generator
- QR Code Reader (Scan from Image)
- Barcode Generator (Code 128, EAN-13, UPC, Code 39)
- Typing Speed Test (WPM & Accuracy)
- Spinner Wheel (Random Name Picker Wheel)
- Online Notepad (Auto-Save, No Login)
- Countdown Timer Online (with Alarm)
- Click Speed Test (CPS Test)
- Reaction Time Test
- Pomodoro Timer (Focus & Break)
- Keyboard Tester (Test Every Key Online)
- Webcam Test (Check Your Camera Online)
- Microphone Test (Check Your Mic Online)
- World Clock (Live Time in Any City)
- WiFi QR Code Generator
- UPI QR Code Generator (Payment QR)
- Scrabble Score Calculator
- Random PIN Generator
Design Tools
- Color Picker
- Color Converter
- CSS Gradient Generator
- CSS Box Shadow Generator
- Color Contrast Checker
- Color Palette Generator
- PX to REM Converter
- Aspect Ratio Calculator
- Random Color Generator
- Color Shades & Tints Generator
- Color Mixer
- Border Radius Generator
- CSS Text Shadow Generator
- Glassmorphism CSS Generator
- CSS Clamp() Generator
- Color Name Finder
- CSS Flexbox Generator
- CSS Grid Generator
- CSS Button Generator
- CSS Animation Generator
- Word Cloud Generator (Free, PNG)
Calculator Tools
- Percentage Calculator
- Age Calculator
- Date Difference Calculator
- BMI Calculator
- EMI Calculator
- GST Calculator
- SIP Calculator
- Discount Calculator
- Simple & Compound Interest Calculator
- Tip & Bill Split Calculator
- FD Calculator
- RD Calculator
- VAT Calculator
- Profit Margin Calculator
- Fraction Calculator
- GCD & LCM Calculator
- Prime Number Checker
- Average Calculator
- Area & Perimeter Calculator
- BMR & Calorie Calculator
- Water Intake Calculator
- Pregnancy Due Date Calculator
- Day of the Week Finder
- Electricity Cost Calculator
- Fuel Mileage Calculator
- Hourly to Salary Converter
- CGPA to Percentage Converter
- ROI Calculator
- Speed, Distance & Time Calculator
- Add or Subtract Days from Date
- Unit Price Comparison Calculator
- PPF Calculator
- Lumpsum Investment Calculator
- CAGR Calculator
- Inflation Calculator
- Gratuity Calculator
- HRA Exemption Calculator
- Savings Goal Calculator
- Salary Hike Calculator
- Ideal Weight Calculator
- Body Fat Calculator
- Heart Rate Zone Calculator
- Running Pace Calculator
- Percentage Change Calculator
- Ratio Calculator
- Quadratic Equation Solver
- Volume Calculator
- Break-Even Calculator
- Sales Commission Calculator
- Time Calculator (Add & Subtract)
- Sleep Cycle Calculator
- Permutation & Combination Calculator
- Leap Year Checker
- Working Days Calculator
- Pro-Rata Calculator
- Markup & Margin Calculator
- Loan Eligibility Calculator
- Investment Growth Calculator
- Income Tax Calculator (India, New Regime)
- Loan Amortization Calculator
- Retirement Corpus Calculator
- Mortgage Calculator
- Step-Up SIP Calculator
- SWP Calculator
- EPF Calculator
- Rule of 72 Calculator
- Calories Burned Calculator
- Ovulation & Fertile Window Calculator
- Trip Cost Calculator
- Final Grade Calculator
- GPA Calculator
- Weighted Average Calculator
- Days Until Calculator
- Week Number Calculator
- Timesheet & Work Hours Calculator
- Zodiac Sign Finder
- In-Hand Salary Calculator (CTC to Take-Home, India)
- Stock Average Calculator (Average Buy Price)
- NPS Calculator (National Pension System)
- Paint Calculator (How Much Paint Do I Need?)
- Loan Prepayment Calculator (Interest Saved)
- Credit Card Payoff Calculator (Interest & Months)
- Debt Payoff Calculator (Snowball vs Avalanche)
- FIRE Calculator (Financial Independence Number)
- Emergency Fund Calculator
- Net Worth Calculator
- Dividend Yield Calculator
- Stock Profit & Loss Calculator
- Rental Yield Calculator
- Down Payment Calculator (Home & Car)
- Leave Encashment Calculator
- Overtime Pay Calculator
- Freelance Hourly Rate Calculator
- Subscription Cost Calculator
- Gold Jewellery Price Calculator (Karat, Making & GST)
- EV vs Petrol Car Running Cost Calculator
- Car Depreciation Calculator
- Sales Tax Calculator (Add or Remove Tax)
- TDS Calculator (Tax Deducted at Source)
- Macro Calculator (Protein, Carbs & Fat)
- Daily Protein Intake Calculator
- Waist to Hip Ratio Calculator
- Body Surface Area (BSA) Calculator
- One Rep Max (1RM) Calculator
- Race Time Predictor (5K, 10K, Half, Marathon)
- Steps to Distance & Calories Calculator
- Lean Body Mass Calculator
- Baby Age Calculator (Weeks & Months)
AI Tools
SEO Tools
- Google SERP Preview Tool
- Open Graph & Twitter Card Generator
- Schema Markup (JSON-LD) Generator
- Keyword Density Checker
- Title & Meta Description Length Checker
- HTML Heading Structure Checker
- HTML Link Extractor
- Hreflang Tag Generator
- Robots.txt Tester
- Image Alt Text Checker
- SEO Audit Checker
- Canonical Tag Generator
Security Tools
- HMAC Generator
- AES Text Encryptor & Decryptor
- TOTP Code Generator
- Passphrase Generator
- JWT Generator (HS256)
- ROT13, ROT47 & Atbash Cipher
- Vigenère Cipher
- Invisible Text Hider
- IBAN Validator
- Random Key & Token Generator
- JWT Signature Verifier
- MD5, SHA & CRC32 Checksum Generator
- File Hash Checker (SHA-256, SHA-512, SHA-1)
- File Encryptor & Decryptor (AES-256)
- Atbash Cipher (Encode & Decode)
- Rail Fence Cipher (Zigzag Encoder)
- A1Z26 Cipher (Letters to Numbers)
- ROT47 Encoder & Decoder
- Affine Cipher (Encode & Decode)
- Polybius Square Cipher
- Bacon Cipher (A/B Binary Code)
- Playfair Cipher (Encode & Decode)
- Columnar Transposition Cipher
- Beaufort Cipher (Encode & Decode)
- Scytale Cipher (Rod Transposition)
- Tap Code Cipher (Knock Code)
- XOR Cipher (Text to Hex)
- Substitution Cipher (Keyword Alphabet)
- Phone Keypad Cipher (T9 Multi-tap)
- Hash Identifier (Find the Hash Type)
- Password Entropy Calculator
Converter Tools
- Length Converter
- Weight & Mass Converter
- Area Converter
- Volume Converter
- Speed Converter
- Time Unit Converter
- Data Storage Converter
- Energy Converter
- Pressure Converter
- Angle Converter
- Power Converter
- Temperature Converter
- Fuel Economy Converter
- Cooking Measurement Converter
- ASCII & Unicode Converter
- Height Converter (cm to feet & inches)
- Shoe Size Converter
- Hours and Minutes to Decimal Converter
- Braille Translator (Text to Braille)
Math Tools
- Statistics Calculator
- Prime Factorization Calculator
- Factorial Calculator
- Fibonacci Sequence Generator
- Matrix Calculator
- Pythagorean Theorem Calculator
- Scientific Notation Converter
- Circle Calculator
- Triangle Calculator (3 Sides)
- AP & GP Calculator
- Probability Calculator
- Logarithm & Exponent Calculator
- Binary Calculator
- Distance & Slope Calculator
- Scientific Calculator
- Decimal to Fraction Converter
- Sample Size Calculator
- Z-Score Calculator
- Rounding Calculator (Decimals, Nearest 10, Significant Figures)
- Percentile Calculator (Value or Rank)
- Quartile & IQR Calculator (Outliers)
- Linear Regression Calculator (Line of Best Fit)
- Correlation Coefficient Calculator (Pearson r)
- Confidence Interval Calculator (Mean)
- Normal Distribution Calculator (Probability)
- Binomial Probability Calculator
- Poisson Distribution Calculator
- Geometric & Harmonic Mean Calculator
- Digit Sum & Digital Root Calculator
- Root Calculator (Square, Cube & Nth Root)
- Exponent Calculator (Power of a Number)
- Modulo Calculator (Remainder)
- Divisibility Checker (Rules for 2 to 12)
- Special Number Checker (Armstrong, Perfect, Happy)
- Collatz Sequence Calculator (3n+1)
- Pascal’s Triangle Generator
- Prime Number Generator (List Primes)
- Ordinal Number Converter (1st, 2nd, 3rd)
- Complex Number Calculator
- Vector Calculator (Dot & Cross Product)
- Linear Equation Solver (2 Variables)
- Regular Polygon Calculator
- Arc Length & Sector Area Calculator
- Proportion Calculator (a : b = c : x)
- Percent Error Calculator
- Fraction to Decimal & Percent Converter
Social Media Tools
- Social Media Character Limit Checker
- Thread Splitter for X & Threads
- WhatsApp Text Formatter
- Instagram Caption Line Break Formatter
- YouTube Timestamp Link Generator
- YouTube Tags Formatter & Counter
- Engagement Rate Calculator
- YouTube Earnings Estimator
- Follower Growth Calculator
- Social Media Image Size Guide
- YouTube Title Generator
Audio & Video Tools
- Online Voice Recorder
- Screen Recorder
- Audio Cutter
- Video to Audio Extractor
- Online Tone Generator
- Online Metronome
- SRT ↔ VTT Subtitle Converter
- Subtitle Time Shifter
- Video Watermark Adder
- Video Trimmer
- Audio Joiner (Merge MP3)
- Video to MP3 Converter
- Audio Converter (to MP3 or WAV)
- Audio Speed Changer (Keep Pitch)
- Audio Volume Booster & Normalizer
- Video to GIF Converter
Business Tools
Compressor Tools
Science Tools
- Ohm’s Law Calculator (Voltage, Current, Resistance, Power)
- Resistor Color Code Calculator (4-Band)
- Projectile Motion Calculator (Range, Height, Time)
- Ideal Gas Law Calculator (PV = nRT)
- Molarity Calculator (Moles per Litre)
- pH Calculator (pH, pOH, H+ and OH-)
- Molar Mass Calculator (Chemical Formula)
- Half-Life Calculator (Radioactive Decay)
- Force Calculator (F = m × a, Newton’s Second Law)