Online Web Tools & Calculators

2,900+ fast, secure, client-side tools designed for web developers, marketers, writers, and students.

All Tools (2,900+) Unit & Image Converters (2,750+) Developer Text Tools Generators Calculators Utilities Security Marketing
Advertisement

Developer Tools

38 Tools

Base64 Encode & Decode

Free online Base64 Encoder and Decoder. Convert plain text or UTF-8 strings to Base64 format and decode Base64 strings back to text instantly with 100% privacy.

Base64 Decoder

Free online Base64 Decoder. Decode any Base64 encoded string back to plain text instantly. Supports standard and URL-safe Base64.

Base64 Encoder

Free online Base64 Encoder. Encode any text to Base64 format instantly. Supports UTF-8 text and URL-safe encoding.

Base64 to Image Converter

Free online Base64 to Image Converter. Convert Base64 data URI strings back to viewable images.

BBCode to HTML Converter

Free online BBCode to HTML Converter. Convert forum BBCode markup to clean HTML instantly. Supports bold, italic, links, images, and more.

Brotli Compression Checker

Free online Brotli Compression Checker. Check if a web server supports Brotli (br) compression.

CSS Minifier

Free online CSS Minifier. Remove whitespaces, line breaks, comments, and compress CSS stylesheets to boost website speed and decrease file payload.

Data Converter (JSON/XML/YAML/CSV)

Free online Data Converter (JSON/XML/YAML/CSV). Convert between JSON, XML, CSV, and YAML data formats.

Date to Unix Timestamp

Free online Date to Unix Timestamp. Convert any date and time to Unix timestamp.

DNS Lookup Tool

Free online DNS Lookup Tool. Perform online DNS record lookups for A, AAAA, MX, TXT, NS, CNAME records.

File MIME Type Checker

Free online File MIME Type Checker. Detect accurate MIME types and file extensions online.

Google Cache & Index Checker

Free online Google Cache & Index Checker. Check Google Web Cache status and search engine indexability.

HTML Entity Converter

Free online HTML Entity Converter. Encode special characters to HTML entities and decode HTML entities back to characters instantly.

HTML Minifier

Free online HTML Minifier. Strip whitespaces, extra newlines, comments, and compress HTML documents to accelerate web page loading speeds.

HTTP Headers Lookup

Free online HTTP Headers Lookup. Inspect HTTP response headers for any URL online.

HTTP/2 Protocol Checker

Free online HTTP/2 Protocol Checker. Check whether a web server supports HTTP/2 protocol.

IDN Punycode Converter

Free online IDN Punycode Converter. Convert between internationalized domain names and Punycode.

Image to Base64 Converter

Free online Image to Base64 Converter. Convert images to Base64 data URI strings.

IP Lookup & Geolocation Tool

Free online IP Lookup & Geolocation Tool. Lookup IP address location, ISP, ASN, and country details online.

JavaScript Minifier

Free online JavaScript Minifier. Compress and minify JavaScript code by removing whitespace, comments, and unnecessary characters. Reduce file size instantly.

JSON to PHP Array Converter

Free online JSON to PHP Array Converter. Convert JSON data to PHP array syntax instantly.

JSON Validator & Beautifier

Free online JSON Validator and Beautifier. Cleanly format, prettify, minify, validate, and check JSON data for syntax errors in real-time.

Markdown to HTML Converter

Free online Markdown to HTML Converter. Convert Markdown text to clean HTML code instantly. Supports headers, lists, links, code blocks, and more.

Meta Tags & Social Preview Checker

Free online Meta Tags & Social Preview Checker. Check meta tags, title, description, and social Open Graph tags.

Online Ping Tool (Website Latency Test)

Free online Online Ping Tool (Website Latency Test). Test website response time and latency online.

Reverse IP Lookup (PTR)

Free online Reverse IP Lookup (PTR). Perform reverse DNS PTR lookup on IP addresses.

SQL Beautifier

Free online SQL Beautifier. Format and indent messy SQL queries into clean, readable code. Supports SELECT, INSERT, UPDATE, DELETE, and more.

Unix Timestamp to Date

Free online Unix Timestamp to Date. Convert Unix timestamp to human-readable date.

URL Decoder

Free online URL Decoder. Decode percent-encoded URLs and query strings back to readable text instantly.

URL Encoder

Free online URL Encoder. Encode URLs and special characters for safe use in web addresses, query strings, and API parameters.

URL Parser

Free online URL Parser. Break down any URL into its components: protocol, host, port, path, query parameters, and hash fragment.

URL Redirect Checker

Free online URL Redirect Checker. Trace HTTP redirects and discover the final destination URL.

User Agent Parser

Free online User Agent Parser. Parse and analyze browser User-Agent strings.

Website Hosting Checker

Free online Website Hosting Checker. Find out who hosts a website, server IP, and datacenter provider.

WHOIS Domain Lookup

Free online WHOIS Domain Lookup. Lookup domain WHOIS registration details and expiry dates.

Px to Rem Converter

Free px to rem converter - convert pixels to rem and rem to px instantly. Customizable base font size. Includes conversion table. Essential for responsive CSS.

UUID Generator

Free UUID/GUID generator - generate unique identifiers instantly. Supports UUID v1, v4, GUID, and bulk generation. Copy with one click. No signup required.

JSON Formatter

Free online JSON formatter and validator. Format, beautify, minify, and validate JSON data. Syntax highlighting and error detection. Perfect for developers.

Text Tools

23 Tools

Case Converter

Free online Case Converter tool. Easily convert text to lowercase, UPPERCASE, Title Case, camelCase, PascalCase, snake_case, and kebab-case instantly with 1-click copy.

Character Counter

Free online Character Counter tool. Instantly count characters, words, sentences, paragraphs, and reading time in any text. No signup required.

Cursive Text Generator

Free online Cursive Text Generator. Convert any text to beautiful cursive, bold cursive, script, and fancy Unicode fonts. Copy & paste anywhere.

Duplicate Lines Remover

Free online Duplicate Lines Remover tool. Instantly delete repeated lines from text or list, sort alphabetically, remove empty lines, and preserve unique entries.

Email Extractor

Free online Email Extractor tool. Automatically discover, filter, and extract all valid email addresses from any raw text, document, or HTML block instantly.

Emojis Remover

Free online Emojis Remover tool. Instantly remove all emojis and special Unicode symbols from your text. Clean text for databases, APIs, and documents.

HTML Tags Remover

Free online HTML Tags Remover tool. Instantly strip all HTML tags from text and get clean plain text output. Perfect for content migration and data cleaning.

List Alphabetizer

Free online List Alphabetizer tool. Sort any list of items alphabetically (A-Z or Z-A), remove duplicates, and trim whitespace. Works instantly in your browser.

List Randomizer

Free online List Randomizer tool. Shuffle any list of items into random order instantly. Perfect for drawings, assignments, and random selection.

Old English Text Generator

Free online Old English Text Generator. Convert any text to medieval Fraktur, Blackletter, and Gothic Unicode fonts. Copy & paste anywhere.

Palindrome Checker

Free online Palindrome Checker tool. Instantly check if any word, phrase, or number is a palindrome. Ignores spaces, punctuation, and case.

Reverse Letters

Free online Reverse Letters tool. Reverse any text string character by character instantly. Mirror text for fun or encoding purposes.

Reverse List

Free online Reverse List tool. Reverse the order of lines in any list instantly. Last line becomes first, first becomes last.

Reverse Words

Free online Reverse Words tool. Reverse the order of words in any text instantly. Keeps individual words intact while flipping their sequence.

Text Separator

Free online Text Separator tool. Effortlessly convert text separated by spaces, commas, new lines, pipes, or semicolons into your chosen delimiter format.

Text Size Calculator

Free online Text Size Calculator. Instantly calculate the byte size of your text in UTF-8, UTF-16, and ASCII encodings. Know exactly how much storage your text needs.

Text to Speech (TTS)

Free online Text to Speech converter. Convert written text into natural human voice audio directly in your browser with speed and pitch controls.

Upside Down Text Generator

Free online Upside Down Text Generator. Flip any text upside down using special Unicode characters. Copy & paste for social media fun.

URL Extractor

Free online URL Extractor tool. Automatically scrape, discover, and filter all hyperlinks and URLs from any raw text, document, or HTML block instantly.

Case Converter

Free online case converter. Convert text to uppercase, lowercase, title case, sentence case, camelCase, and snake_case. Copy converted text instantly. No sign up required.

Fancy Text Generator

Free online fancy text generator. Convert normal text to cool stylish fonts with unicode characters. Perfect for social media, usernames, and creative designs. Copy instantly.

Lorem Ipsum Generator

Free online Lorem Ipsum generator. Create dummy text in paragraphs, words, or bytes. Perfect for web design, typography testing, and mockups. Copy instantly. No sign up required.

Word Counter

Free online word counter tool. Count words, characters, sentences, paragraphs & reading time instantly. Perfect for essays, social media & content. No registration needed.

Calculators

17 Tools

Age Calculator

Free online age calculator. Calculate your exact age in years, months, days, hours & seconds. Accurate with leap year support. No sign up required.

BMI Calculator

Free BMI calculator - calculate your Body Mass Index instantly. Check if you

Break-Even ROAS Calculator

Calculate your break-even ROAS instantly. Advanced free calculator with profit analysis, cost breakdown, scenario comparison & PDF export. Works for Google, Facebook, TikTok & Amazon ads.

Calorie Calculator

Free calorie calculator - find how many calories you need per day to lose, maintain, or gain weight. Based on Mifflin-St Jeor equation. TDEE calculator included.

Compound Interest Calculator

Free compound interest calculator - see how your money grows over time with compound interest. Calculate investment returns, savings growth & retirement planning.

Date Difference Calculator

Free date difference calculator - find the exact number of days, weeks, months and years between any two dates. Calculate duration between dates instantly. No signup.

Discount Calculator

Free discount calculator - find final price after discount. Calculate percentage off, savings amount & sale price instantly. Great for shopping deals.

Electricity Cost Calculator

Free electricity cost calculator - estimate your electric bill by appliance. Calculate watts to kWh, daily, monthly & yearly electricity cost. Save money.

Personal Loan EMI Calculator

Free personal loan EMI calculator. Calculate your monthly EMI payments, total interest payable, and view the complete amortization schedule. Fast, accurate, and 100% free.

Mortgage Calculator

Free mortgage calculator - estimate your monthly mortgage payment with taxes, insurance & PMI. Compare loan options. See amortization schedule. No signup needed.

Percentage Calculator

Free online percentage calculator. Calculate percentage increase, decrease, difference & percentage of a number. Easy percentage formulas with examples. No sign up required.

Profit Calculator — Free Net Profit & Margin Calculator Online

Free profit calculator to instantly calculate net profit, gross profit margin, markup percentage, and break-even point. Works for any business — ecommerce, retail, services, and more.

Salary to Hourly Calculator

Free salary to hourly calculator - convert annual salary to hourly, daily, weekly & monthly pay. Works both ways. Tax estimation included.

Sleep Calculator

Free sleep calculator - find the best time to go to bed or wake up based on sleep cycles. Get 4-6 complete sleep cycles for optimal rest. Includes sleep tips.

Tip Calculator

Free tip calculator - calculate tip amount and split bill between friends easily. Custom tip percentages. Per person calculation included. No signup needed.

YouTube Money Calculator

Free YouTube money calculator. Estimate how much a YouTuber makes per video, daily, monthly, and yearly based on views and RPM. Supports YouTube Shorts.

ROAS Calculator — Free Return on Ad Spend Calculator

Calculate your return on ad spend instantly with this free ROAS calculator. Enter your ad spend and revenue to get your ROAS ratio, percentage, and per-dollar results.

Generator Tools

23 Tools

MD2 Hash Generator

Free online MD2 Hash Generator. Generate MD2 hash from any text string online.

MD4 Hash Generator

Free online MD4 Hash Generator. Generate MD4 hash from any text string online.

MD5 Hash Generator

Free online MD5 Hash Generator. Compute accurate 32-character hexadecimal MD5 cryptographic hashes from any text, password, or string in real-time.

Strong Password Generator

Free online Strong Password Generator. Create cryptographically secure, random passwords with custom lengths, uppercase, lowercase, numbers, and symbols.

Random Number Generator

Free random number generator - generate random numbers between any range instantly. Perfect for lotteries, games, statistics & more. Truly random results. No signup needed.

RIPEMD-128 Hash Generator

Free online RIPEMD-128 Hash Generator. Generate RIPEMD-128 hash online from any string.

RIPEMD-160 Hash Generator

Free online RIPEMD-160 Hash Generator. Generate RIPEMD-160 cryptographic hash online.

RIPEMD-256 Hash Generator

Free online RIPEMD-256 Hash Generator. Generate RIPEMD-256 hash online from any string.

RIPEMD-320 Hash Generator

Free online RIPEMD-320 Hash Generator. Generate RIPEMD-320 hash online from text.

SHA-1 Hash Generator

Free online SHA-1 Hash Generator. Generate SHA-1 hash from any text instantly.

SHA-224 Hash Generator

Free online SHA-224 Hash Generator. Generate SHA-224 hash from any text.

SHA-256 Hash Generator

Free online SHA-256 Hash Generator. Compute secure 64-character hexadecimal SHA-256 cryptographic hashes from any plain text string using Web Crypto API.

SHA3-224 Hash Generator

Free online SHA3-224 Hash Generator. Generate SHA3-224 (Keccak) hash online from any string.

SHA3-256 Hash Generator

Free online SHA3-256 Hash Generator. Generate SHA3-256 (Keccak) cryptographic hash online.

SHA3-384 Hash Generator

Free online SHA3-384 Hash Generator. Generate SHA3-384 hash online from any string.

SHA3-512 Hash Generator

Free online SHA3-512 Hash Generator. Generate SHA3-512 (Keccak-512) hash online.

SHA-384 Hash Generator

Free online SHA-384 Hash Generator. Generate SHA-384 hash from any text.

SHA512/224 Hash Generator

Free online SHA512/224 Hash Generator. Generate SHA-512/224 hash online.

SHA512/256 Hash Generator

Free online SHA512/256 Hash Generator. Generate SHA-512/256 hash online.

SHA-512 Hash Generator

Free online SHA-512 Hash Generator. Generate SHA-512 hash from any text.

URL Slug Generator

Free online URL Slug Generator. Convert article titles, product names, or text into clean, optimized, human-readable SEO slugs instantly.

UUID v4 Generator

Free online UUID v4 Generator. Create random, cryptographically secure RFC 4122 Version-4 Unique Identifiers (UUID / GUID) instantly in bulk or single.

Whirlpool Hash Generator

Free online Whirlpool Hash Generator. Generate Whirlpool 512-bit hash online.

Security Tools

5 Tools

Bcrypt Hash Generator

Free online Bcrypt Hash Generator. Generate Bcrypt password hashes online.

Password Generator

Free online password generator. Create strong, secure, random passwords with customizable length and character options. Copy to clipboard instantly. No data stored.

Password Strength Checker

Free online Password Strength Checker. Check the strength and security of your password.

Safe URL & Security Checker

Free online Safe URL & Security Checker. Scan links for security threats, malware, and phishing online.

SSL Certificate Checker

Free online SSL Certificate Checker. Check SSL/TLS certificate status and security for any domain.

Utility Tools

15 Tools

Free AI Text Humanizer & Polisher Online

Free AI Text Humanizer tool that transforms robotic AI-generated content into natural, human-sounding text. Bypass AI detection, improve readability, and polish your writing instantly.

Barcode Reader

Free online Barcode Reader. Scan and read barcodes online from images or camera.

Countdown Timer

Free online countdown timer with alarm sound. Set custom timers for cooking, studying, workouts & more. Fullscreen mode available. No download needed.

EXIF Data Reader

Free online EXIF Data Reader. View hidden EXIF camera metadata and GPS coordinates from images.

Gravatar Checker

Free online Gravatar Checker. Check and view Gravatar profile photos from email addresses.

Image Manipulation Tool

Free online Image Manipulation Tool. Resize, rotate, flip, and apply filters to images online.

Image Optimizer & Compressor

Free online Image Optimizer & Compressor. Compress and optimize JPEG, PNG, and WebP images online.

Phone Number Validator — Verify & Check Phone Numbers Free

Free international phone number validator tool. Verify phone numbers, check line type (cell/landline), and use our bulk phone validator instantly without signup.

Pomodoro Timer

Free Pomodoro timer - boost productivity with 25/5 minute work/break cycles. Customizable intervals. Audio alerts. Session tracking. No download needed.

QR Code Generator

Free online QR code generator. Create QR codes for URLs, text, contact info, WiFi, and more. Download as PNG or SVG. Multiple sizes available. No registration required.

QR Code Reader

Free online QR Code Reader. Scan and decode QR codes online from image files.

Digital Signature Generator

Free online Digital Signature Generator. Create beautiful digital signatures with customizable fonts and styles.

Online Stopwatch

Free online stopwatch with lap timer and split times. Accurate to milliseconds. Fullscreen mode available. Perfect for sports, cooking & workouts. No download.

YouTube Thumbnail Downloader

Free online YouTube Thumbnail Downloader. Download YouTube video thumbnails in all resolutions.

YouTube Timestamp Link Generator

Free online YouTube Timestamp Link Generator. Generate YouTube links that start at a specific timestamp.

Marketing Tools

5 Tools

Mailto Link Generator

Free online Mailto Link Generator. Generate mailto links with pre-filled subject, body, CC, and BCC.

PayPal Payment Link Generator

Free online PayPal Payment Link Generator. Generate PayPal payment links for products and services.

UTM Builder

Free Advanced UTM Builder. Create tracking URLs for Google Ads, Facebook, LinkedIn & more. Auto-encoding, live generation & 1-click presets. Start tracking today!

UTM Link Builder & Campaign URL Generator

Free online UTM Link Builder & Campaign URL Generator. Generate custom campaign tracking links with UTM parameters.

WhatsApp Link Generator

Free online WhatsApp Link Generator. Generate WhatsApp click-to-chat links with pre-filled messages.

Business Tools

1 Tools

Invoice Generator

Free invoice generator - create professional invoices in seconds. Add logo, items, tax & notes. Download as PDF. No signup or watermark.

Design Tools

1 Tools

Color Picker

Free online color picker and converter. Pick colors, convert between HEX, RGB, and HSL formats. Generate color palettes. Copy color codes instantly. Perfect for designers and developers.

Converter Tools

29 Tools

Binary to Decimal Converter

Free binary to decimal converter - convert binary numbers to decimal, hexadecimal & octal instantly. Also convert decimal to binary. No signup required.

Text to Binary Converter

Free text to binary converter - instantly convert text to binary code and binary to text. Supports ASCII & Unicode. Copy results with one click. No signup needed.

ASCII Converter

Free online ASCII Converter. Convert text to ASCII codes and ASCII codes back to text instantly. Supports decimal, hex, and binary ASCII formats.

Binary Converter

Free online Binary Converter. Convert plain English text to 8-bit binary code and decode binary strings (0s and 1s) back into readable text instantly.

Celsius to Fahrenheit Converter

Free online Celsius to Fahrenheit Converter. Convert Celsius to Fahrenheit temperature instantly.

Celsius to Kelvin Converter

Free online Celsius to Kelvin Converter. Convert Celsius to Kelvin temperature instantly.

Color Converter (HEX / RGB / HSL / CMYK)

Free online Color Converter (HEX / RGB / HSL / CMYK). Convert colors between HEX, RGB, HSL, and CMYK formats online.

Color Converter

Free online Color Converter and Color Picker. Translate colors seamlessly between HEX, RGB, RGBA, HSL, HSV, and CMYK formats with live color preview.

Decimal Converter

Free online Decimal Converter. Convert decimal numbers to binary, hex, and octal formats.

Fahrenheit to Celsius Converter

Free online Fahrenheit to Celsius Converter. Convert Fahrenheit to Celsius temperature instantly.

Fahrenheit to Kelvin Converter

Free online Fahrenheit to Kelvin Converter. Convert Fahrenheit to Kelvin temperature instantly.

Fuel Economy Converter

Free online Fuel Economy Converter. Convert between MPG, km/L, and L/100km fuel economy units.

Hexadecimal Converter

Free online Hexadecimal Converter. Convert between hexadecimal, decimal, binary, and octal numbers.

Hours to Days Converter

Free online Hours to Days Converter. Convert hours to days instantly.

Hours to Minutes Converter

Free online Hours to Minutes Converter. Convert hours to minutes instantly.

Hours to Months Converter

Free online Hours to Months Converter. Convert hours to months instantly.

Hours to Seconds Converter

Free online Hours to Seconds Converter. Convert hours to seconds instantly.

Hours to Weeks Converter

Free online Hours to Weeks Converter. Convert hours to weeks instantly.

Hours to Years Converter

Free online Hours to Years Converter. Convert hours to years instantly.

Kelvin to Celsius Converter

Free online Kelvin to Celsius Converter. Convert Kelvin to Celsius temperature instantly.

Kelvin to Fahrenheit Converter

Free online Kelvin to Fahrenheit Converter. Convert Kelvin to Fahrenheit temperature instantly.

KPH to MPH Converter

Free online KPH to MPH Converter. Convert kilometers per hour to miles per hour instantly.

MPH to KPH Converter

Free online MPH to KPH Converter. Convert miles per hour to kilometers per hour instantly.

Morse Code Converter

Free online Morse Code Converter. Convert text to Morse code and Morse code to text instantly. Play Morse audio with adjustable speed.

Number to Roman Numerals Converter

Free online Number to Roman Numerals Converter. Convert numbers to Roman numerals instantly.

Number to Words Converter

Free online Number to Words Converter. Convert numbers to written words in English.

Octal Converter

Free online Octal Converter. Convert octal numbers to decimal, binary, and hex formats.

Roman Numerals to Number Converter

Free online Roman Numerals to Number Converter. Convert Roman numerals to numbers instantly.

Time Converter

Free online Time Converter. Convert between different time units instantly.

2,900+ Unit & Format Converters

Browse all conversion tool categories. Every tool runs instantly in your browser — no uploads, no waiting.

2,900+
Total Tools
1,190+
Time Converters
1,482+
Data Converters
141+
Image Converters