All 325+ Free Online Tools

Real-time word, character, sentence, paragraph, and reading time counter.

Accurate character counter with space, line, and byte size analysis.

Convert text to UPPERCASE, lowercase, Title Case, camelCase, snake_case, and kebab-case.

Remove duplicate lines from text or lists with case-sensitivity options.

Remove extra spaces, tabs, empty lines, and trailing whitespace.

Counts total, empty, and non-empty lines in text files.

Reverse characters, words, or full sentences.

Count paragraphs and analyze writing structure.

Convert headlines into SEO-friendly URL slugs.

Generate placeholder dummy text paragraphs.

Analyze the frequency of every word in your text.

Find strings or patterns and replace them in text.

Sort text lists alphabetically from A to Z or Z to A.

Strip all blank lines from multi-line text.

Join multiline text into a continuous single line.

Prefix each line of text or code with sequential numbers.

Decode 8-bit binary numbers into readable text.

Convert text characters into binary 0s and 1s.

Translate standard English text into Morse Code.

Translate Morse code dots and dashes back to text.

Rotate text by 13 positions in the alphabet.

Shift letters by custom Caesar cipher key.

Compare two text snippets side-by-side to highlight differences.

Detailed string character and byte size calculator.

Extract all valid email addresses from any raw text document.

Scrape and extract all HTTP/HTTPS web links from text.

Extract phone and mobile numbers from unstructured text.

Flip words upside down using Unicode characters.

Add creepy corrupted glitch diacritic marks to text.

Generate large ASCII art text headings for code or terminals.

Trim long text to fixed character or word count limits.

Convert special characters to HTML entities (&, <, >).

Decode HTML entities back to readable standard text.

Render Markdown syntax into clean HTML code.

Strip HTML tags while keeping formatted text layout.

Convert regular text into stylish Unicode aesthetic fonts.

Count syllables and calculate reading ease scores.

Calculate silent reading and public speaking times.

Measure single, 2-word, and 3-word keyword percentages.

Detect and strip invisible zero-width space characters.

Calculate your exact age in years, months, weeks, days, hours, and next birthday countdown.

Calculate percentages, percentage increases, discounts, and ratio conversions.

Calculate monthly EMI loan installments, total interest, and total payable amount.

Calculate Goods and Services Tax (GST) inclusive and exclusive amounts.

Calculate sale discounts, final price, money saved, and sales tax.

Calculate principal, rate, time interest.

Calculate daily, monthly, and yearly compound growth.

Compute sales tax amount and gross price.

Compute cost, revenue, gross margin and markup %.

Return on Investment percentage calculator.

Calculate tip percentage and split bill per person.

Cost Per Mille calculator for digital ads.

Cost Per Click and marketing budget solver.

Click Through Rate percentage calculator.

Convert annual salary to hourly wage.

Convert hourly wage to gross annual salary.

Units and revenue needed to break even.

Calculate purchasing power change over years.

Perform trigonometric, logarithmic, and power math.

Add, subtract, multiply, and divide fractions.

Calculate mean, median, mode, range, and sum of numbers.

Population and sample variance calculator.

Greatest Common Divisor and Least Common Multiple.

Check if a number is prime and find its prime factors.

Calculate percentage increase and decrease.

Trip fuel cost, distance, and economy calculation.

Domestic and international PayPal merchant fees.

Calculate Stripe processing fees and net payout.

Calculate crypto trade returns and ROI.

Dollar cost averaging calculation for stock buys.

Compound Annual Growth Rate calculator.

Systematic Investment Plan mutual fund maturity returns.

Lump sum investment maturity value.

Home loan payment with property taxes and insurance.

Years required to double invested capital.

Future value of current cash sum.

Discounted present value of future cash.

Single and series event probability solver.

Calculate nPr and nCr math combinations.

Find roots of ax² + bx + c = 0 quadratic equations.

Convert meters, feet, inches, kilometers, miles.

Convert kilograms, pounds, ounces, grams, tons.

Convert Celsius, Fahrenheit, and Kelvin.

Convert square meters, square feet, acres, hectares.

Convert liters, milliliters, gallons, cups, fluid ounces.

Convert km/h, mph, m/s, knots.

Convert seconds, minutes, hours, days, weeks.

Convert bytes, KB, MB, GB, TB, PB.

Convert Joules, Kilojoules, Calories, BTU, kWh.

Convert Watts, Kilowatts, Horsepower.

Convert Bar, PSI, Pascal, Atmosphere.

Convert MPG, L/100km, km/L.

Convert degrees, radians, and gradians.

Convert kg/m³, g/cm³, lb/ft³.

Convert Newtons, kilonewtons, pound-force.

Convert Newton-meters to foot-pounds.

Convert Mbps, MB/s, Gbps, GB/s.

Convert US, UK, EU, and CM shoe sizes.

International apparel size chart converter.

Convert cups, tablespoons, teaspoons, grams.

Calculate sound pressure and decibel ratios.

Convert Hz, kHz, MHz, GHz, and RPM.

Convert Amperes, Milliamperes, Microamperes.

Convert Volts, Millivolts, Kilovolts.

Calculate real and apparent AC power.

Convert Lux to Foot-candles.

Convert Liters/min to Gallons/min.

Convert Poise, Centipoise, Pascal-seconds.

Convert Sieverts, Millisieverts, Rem.

Running pace (min/km) to speed (km/h).

Convert mm to fractional/decimal inches.

Convert inches to exact millimeters.

Convert feet and inches into meters.

Convert meters into feet and inches.

Convert kg to lbs with precision.

Convert lbs to kg with precision.

Instant C to F temperature converter.

Instant F to C temperature converter.

Road distance converter miles to km.

Metric distance converter km to miles.

Convert JPG images to transparent PNG format.

Convert lossless PNG images into optimized JPGs.

Convert JPG photos into modern high-compression WebP.

Convert transparent PNG images to lightweight WebP.

Convert WebP images back into standard JPG format.

Convert WebP images to full-quality PNG format.

Compress images to reduce file size without losing visual quality.

Resize photo dimensions by pixels or percentage scaling.

Crop photos to custom dimensions or fixed aspect ratios.

Rotate images 90°, 180°, 270° or flip horizontally/vertically.

Convert image files into inline Base64 data URI strings.

Decode Base64 string back into downloadable image files.

Invert image colors to create negative photographic effects.

Convert color images into classic black and white.

Adjust brightness, exposure, and contrast of images.

Apply Gaussian blur or unsharp mask sharpening.

Render vector SVG graphics into raster PNG files.

Generate multi-size .ico website favicons.

Convert legacy BMP bitmap files into modern PNG format.

Convert PNG files into standard Windows Bitmap (BMP).

Extract still image frames from animated GIF files.

Extract dominant HEX color palettes from any photo.

Pick pixel colors directly from image with HEX, RGB, HSL.

Stamp text or logo watermarks onto your photos.

View camera model, shutter speed, ISO, and GPS metadata.

Strip privacy-sensitive EXIF tags from photos.

Apply smooth rounded corners with custom border radii.

Pixelate photos for privacy or retro 8-bit aesthetic effects.

Calculate proportional dimensions for 16:9, 4:3, 1:1, 21:9.

Generate custom sized placeholder mockup images with custom text.

Convert JPG images into a multi-page PDF document.

Convert PNG files into high resolution PDF.

Extract high quality JPG images from PDF pages.

Extract crisp PNG images from PDF pages.

Compress PDF files to reduce attachment size.

Merge and combine multiple PDF files into one.

Split PDF documents by custom page numbers or ranges.

Rotate PDF pages permanently by 90°, 180°, or 270°.

Add custom page numbering to header or footer of PDF.

Rearrange the order of pages inside a PDF.

Extract raw text content from PDF documents.

Format and convert plain text into clean printable PDF.

Convert HTML code and webpages into PDF documents.

Encrypt PDF files with AES user and owner passwords.

View author, title, creation date, and producer tags.

Stamp text or image watermarks across PDF pages.

Convert color PDFs to monochrome black & white.

In-browser PDF reader with zoom and thumbnail navigation.

Remove unwanted pages from a PDF document.

Add corporate headers, dates, and footers to PDF pages.

Easily convert your PDF files into easy to edit DOC and DOCX documents.

Make DOC and DOCX files easy to read by converting them to PDF.

Turn your PDF files into easy to edit PPT and PPTX slideshows.

Make PPT and PPTX slideshows easy to view by converting them to PDF.

Pull data straight from PDFs into Excel spreadsheets in a few short seconds.

Make EXCEL spreadsheets easy to read by converting them to PDF.

Sign yourself or request electronic signatures from others.

Add text, shapes, or freehand annotations to a PDF document.

Remove PDF password security, giving you the freedom to use your PDFs.

Protect PDF files with a password. Encrypt PDF documents to prevent unauthorized access.

Sort, rearrange, or delete pages of your PDF file however you like.

Transform your PDF to PDF/A for long-term archiving.

Repair a damaged PDF and recover data from corrupt PDF files.

Capture document scans and convert them instantly to PDF.

Easily convert scanned PDF into searchable and selectable documents.

Show side-by-side document comparison and spot changes.

Redact text and graphics to permanently remove sensitive info.

Crop margins of PDF documents or select specific areas.

Fill PDF forms or add text fields, checkboxes, and lists.

Quickly generate concise summaries, key points, and takeaways.

Easily translate PDF file text powered by browser AI.

Easily turn PDFs into clean Markdown files for notes and LLMs.

Format, indent, and beautify messy JSON code.

Validate JSON syntax with exact line error highlighting.

Minify JSON payloads by removing whitespace and comments.

Convert JSON arrays into flat CSV tables.

Convert CSV data into structured JSON objects.

Transform JSON documents into XML markup.

Transform XML files into JSON objects.

Beautify and indent XML documents cleanly.

Validate XML syntax and document structure.

Compress XML by stripping indentations and newlines.

Clean and format messy HTML tags and layout.

Minify HTML source code to boost page speed.

Beautify minified CSS into standard rule blocks.

Compress CSS stylesheets by removing whitespace and comments.

Beautify and indent JavaScript source code.

Remove comments and compress JavaScript files.

Format SQL queries with uppercase keywords and indentations.

Compress SQL queries into single line statements.

Encode UTF-8 text strings into Base64 format.

Decode Base64 strings back to readable UTF-8 text.

Encode URL strings using standard RFC 3986 format.

Decode percent-encoded URL parameters.

Encode characters to prevent XSS vulnerabilities.

Decode HTML character entities.

Decode JSON Web Token headers, payload claims, and expiry.

Translate 5-field cron syntax into human readable English.

Live regular expression evaluator with match groups.

Generate RFC 4122 random UUID v4 strings in bulk.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes simultaneously.

Generate cryptographic HMAC signature hashes.

Convert Unix epoch timestamps to UTC and local dates.

Convert calendar dates into Unix epoch seconds.

Parse raw HTTP headers into structured key-value arrays.

Detect browser, OS, engine, and device from user agent.

Convert IPv4 address into Decimal, Binary, and Hex.

Calculate network IP, broadcast, netmask, and host range.

Convert raw cURL commands into JavaScript Fetch or Python requests.

Convert YAML configuration documents into JSON objects.

Convert JSON data into clean indented YAML.

Convert color codes between HEX, RGB, RGBA, HSL, CMYK.

Generate HTML title, description, keywords, and robots tags.

Generate Facebook & LinkedIn social sharing cards.

Generate Twitter summary_large_image card tags.

Configure web crawler allow/disallow directives and sitemap link.

Check if crawler access is blocked for specific URL paths.

Generate XML sitemap markup from a list of URLs.

Verify sitemap XML schema compliance.

Generate Article, FAQ, Organization, Product JSON-LD schemas.

Generate 301, 302, HTTPS force, and WWW rewrite rules.

Generate canonical link tags for duplicate content.

Check server response HTTP 200, 301, 404, 500 status codes.

Query A, AAAA, MX, CNAME, TXT, and NS records for any domain.

Lookup registrar, registration date, expiry date, name servers.

Find country, city, region, ISP, and coordinates of an IP.

Verify SSL certificate validity, issuer, and encryption strength.

Evaluate CSP, HSTS, X-Frame-Options security headers.

Trace full 301/302 redirect paths to final destination.

Extract internal and external links from webpage markup.

Visual preview of desktop & mobile Google search results.

Scan content for over-optimized keyword frequencies.

Analyze DOM elements, script sizes, and image weights.

Check existence of standard and Apple touch icons.

Identify CMS, web server, caching layer, and frameworks.

Encyclopedia of 1xx, 2xx, 3xx, 4xx, 5xx HTTP codes.

Build Google Analytics tracking URLs with UTM parameters.

Verify canonical tag matches current URL.

Generate multi-language and regional SEO tags.

Format toxic domains into Google Disavow text files.

Generate search queries to test indexation status.

Calculate domain age and time remaining until expiration.

Generate unhackable random passwords with custom symbols.

Calculate brute-force crack time and cryptographic entropy.

Standard 128-bit MD5 checksum generator.

160-bit SHA-1 cryptographic hash.

256-bit SHA-2 cryptographic hash.

512-bit SHA-2 high security hash.

Generate and verify PHP Bcrypt password hashes.

Modern Argon2id password hash generator.

Cyclic redundancy checksum calculation.

AES-256-CBC string encryption with password key.

Triple-DES cryptographic encoder.

Generate 2048-bit public and private RSA keys.

Generate secure 32/64/128-byte hex API tokens.

Bulk alphanumeric random string generator.

4-digit, 6-digit, 8-digit secure numeric PINs.

Test plaintext against MD5, SHA256, and Bcrypt hashes.

Ethereum standard SHA-3 cryptographic hash.

Bitcoin-standard 160-bit cryptographic hash.

Verify password security using SHA-1 hash checking.

High entropy random cryptographic salts.

Generate custom color QR codes for websites and links.

Encode plaintext notes and messages into QR codes.

Auto-connect QR code for WPA/WPA2/WEP WiFi networks.

Digital business card QR code with phone, email, company.

Pre-fills email recipient, subject, and body on scan.

Pre-fills phone number and SMS text message.

Direct dial phone number on mobile scan.

Direct WhatsApp chat link with pre-filled message.

Bitcoin, Ethereum, USDT crypto address QR code.

iCalendar event title, date, location, description.

Generate standard alphanumeric 1D Code 128 barcodes.

13-digit European retail product barcode generator.

12-digit US retail product barcode generator.

Scan and decode QR codes from photos or webcam.

Read retail 1D barcodes from uploaded photos.

Live real-time clocks across major financial world cities.

Calculate days, weeks, months between two dates.

Add or subtract days/weeks/months to find future/past dates.

Add and subtract hours, minutes, and seconds.

Calculate working days excluding weekends.

Determine if any year is a leap year.

Find the current ISO-8601 week number.

Find what day of the week any date falls on.

Millisecond stopwatch with lap split recording.

25-minute focus / 5-minute break productivity timer.

Real-time counting Unix timestamp clock.

Convert Gregorian dates to astronomical Julian days.

Format timestamps into ISO 8601, RFC 2822, and SQL.

Weekly clock-in / clock-out hours and gross pay.

Calculate 90-minute REM cycles for optimal wakeup.

Calculate solar dawn and dusk times.

Current lunar illumination percentage and next full moon.

HIIT workout interval and countdown timer.

Breakdown of your life in weeks, days, and seconds.

Live countdown clock to your next birthday.

Calculate Body Mass Index and WHO weight category.

Calculate Basal Metabolic Rate calories burned at rest.

Total Daily Energy Expenditure based on activity levels.

Weight loss and muscle gain calorie targets.

US Navy circumference body fat method.

Robinson, Miller, Devine ideal weight formulas.

Recommended daily fluid liters based on body weight.

Karvonen formula for Fat Burn, Cardio, and Peak zones.

Brzycki and Epley strength formulas.

Protein, Carbs, and Fats grams per day.

Naegele's rule calculation from last menstrual period.

Estimate fertile window and ovulation dates.

Widmark formula blood alcohol concentration estimate.

Money saved and life regained after quitting smoking.

Convert daily walking steps to km, miles, and calories.

Calculate weighted and unweighted Grade Point Average.

Calculate score needed on final exam to reach target grade.

Calculate grade with custom category weights.

Simulate random coin flips with probability statistics.

Roll tabletop RPG dice (D4, D6, D8, D10, D12, D20, D100).

Cryptographically secure random integer in custom range.

Pick random winner from list with elimination.

Interactive animated spinning wheel for making choices.

Convert numbers to Roman numerals and vice-versa (1-3999).

Convert digits (e.g. 1250) to "One Thousand Two Hundred Fifty".

Add, subtract, multiply, and divide binary numbers.

Math operations on base-16 hexadecimal numbers.

Generate lists of all usable IP addresses in a CIDR subnet.

Generate 600Hz audio beeps for Morse code dots and dashes.

Tap tempo to measure musical beats per minute with audio click.