All Our Free Online Tools
Everything you need — from code formatters to PDF tools, OCR to calculators. All tools run directly in your browser, no signup required.
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Fiat Currency Converter
Live rates for 60+ world currencies.
Internet Speed Test
Download, upload, ping & jitter live.
Crypto Converter
Convert 20+ crypto to 30 fiat currencies.
Bitcoin Calculator
BTC to 30 world currencies with live rates.
Crypto & Blockchain
Interactive guides with live market data, plus our crypto tools.
The Blockchain
→What is a blockchain?
Bitcoin
→What is Bitcoin?
Ethereum
→What is Ethereum?
DeFi
→What is DeFi?
Smart contracts
→What is a smart contract?
NFT
→What is an NFT?
SHA-256 Generator
→Hash text or files instantly, in your browser.
Bitcoin Mining Calculator
→Estimate profitability, energy and break-even.
Crypto Tax
→Estimate capital gains tax (2025).
Electric Vehicles
Interactive guides with range, charging and savings calculators.
Finance & Lifestyle Guides
Bilingual comparison guides with tables, FAQs and calculators: business structure, retirement, housing, weddings, visas and purchasing power.
Money & Deals
High-value money topics: car insurance, credit card payoff and VPN pricing — interactive calculators that save you real money.
How Much Is Car Insurance? Average Cost 2026
→What determines your premium?
Credit Card Payoff Calculator: How Long Until Debt-Free?
→Why credit card debt is so expensive
How Much Does a VPN Cost? Monthly vs Annual (2026)
→Why VPN prices are all over the map
Medicare Costs 2026: Premiums, Deductibles & IRMAA
→Medicare has four parts, four price tags
How Much Does a Divorce Cost? (2026)
→The price is set by the process, not the paper
How Much Does a Website Cost in 2026?
→Three price tiers, three very different sites
Home Security System Cost 2026: Alarm, Cameras & Monitoring
→Security pricing in two buckets
How Much Does College Cost in 2026?
→The sticker price is not the price
Average Procedure Costs 2026: LASIK, Invisalign & Surgery
→Price transparency is almost nonexistent
Salary Negotiation 2026: How Much Should You Ask?
→Every dollar of salary compounds
Cost of Buying a Home 2026: Closing Costs, Down Payment & PMI
→The price is not the price
How Much House Can You Afford? (2026)
→Affordability is a ratio, not a feeling
How Much Do Investment Brokers Charge? (2026 Fees)
→The free-trade era moved the fees elsewhere
Compound Interest Calculator - Project Your Savings Growth
→Interest on interest — the eighth wonder
High-Yield Savings Account Calculator: Best Rates 2026
→The same money, 40x the interest
How Much Does Life Insurance Cost? (2026)
→Term life is cheaper than you think
Personal Loan Calculator: Monthly Payment & Total Cost
→The term is the biggest lever
Tax Deductions 2026: How Much Do You Save?
→A deduction is worth your rate, not its face value
E-commerce Fees Calculator: Shopify, Amazon & Marketplaces
→The sticker price is not your revenue
Budget Calculator
→50/30/20 split of your income.
Debt Calculator
→Payoff time and interest saved.
Salary Converter
→Annual ↔ hourly ↔ monthly.
Network Tools
IP, DNS, whois, ports, SSL and uptime — the essential network utilities.
What Is My IP Address?
→Your public IP, location, ISP, and browser details — detected instantly and shown privately.
IP Geolocation Lookup
→Enter any IP address to see its approximate city, country, ISP and timezone.
What Is My User Agent?
→Your user agent string, decoded: browser, OS, device, screen and language — all detected locally.
DNS Lookup
→Check the DNS records of any domain — A, AAAA, MX, NS, TXT, CNAME and SOA.
Whois Lookup
→See who owns a domain, when it expires and its registration status.
Port Checker
→Test whether a TCP port is open on any host and how fast it responds.
SSL Checker
→Verify the SSL certificate of any domain — validity, issuer, expiry and days remaining.
HTTP Header Checker
→See the HTTP status and response headers any URL returns — server, security and caching details.
Ping Test
→Measure latency to any host or website and see if it is reachable.
Website Uptime Checker
→Is a website down? Check any URL right now and see its status, speed and size.
Utility Tools
Random, stopwatch, world clock and more — all running in your browser.
Random Number Generator
→Generate random numbers between any two values — instantly, in your browser.
Random Name Picker
→Enter names and pick a random winner — with a satisfying wheel spin.
Flip a Coin
→Heads or tails — a fair virtual coin flip, instantly in your browser.
Accent Stripper
→Remove accents and diacritics from text — é becomes e, ç becomes c, instantly.
Password Strength Checker
→Test your password — see its strength score, entropy and estimated time to crack.
World Clock
→The current time in major cities around the world, updated live.
Online Stopwatch
→A precise stopwatch with lap times — start, pause and reset instantly.
Dice Roller
→Roll 1–10 dice — d4, d6, d8, d10, d12 or d20 — fairly and instantly.
Spin the Wheel
→Enter your options, spin the wheel, and let fate pick the winner.
Countdown Timer
→Set the time, start the countdown, and get an alert when it hits zero.
Pomodoro Timer
→Work in focused 25-minute sprints, then rest — the proven productivity method.
Magic 8 Ball
→Shake the ball, ask your question, and get a random answer.
Lottery Number Generator
→Random numbers for Powerball, Mega Millions, EuroMillions and more.
Random Date Generator
→Pick a random date between any two dates.
Random Color Generator
→Generate random colors and copy their HEX or RGB codes instantly.
Car diagnostics (OBD-II codes)
Decode your check engine codes for free and explore faults by brand.
OBD-II Codes
→What is an OBD-II code?
Best OBD-II Scanners
→Do you even need a scanner?
BMW OBD Codes
→BMW check engine light codes
Mercedes OBD Codes
→Mercedes-Benz check engine light codes
VAG OBD Codes
→Volkswagen / Audi (VAG) check engine light codes
Peugeot & Citroën
→Peugeot / Citroën (Stellantis) check engine light codes
Renault OBD Codes
→Renault check engine light codes
Toyota & Lexus
→Toyota / Lexus check engine light codes
Ford OBD Codes
→Ford check engine light codes
GM OBD Codes
→GM (Chevrolet, GMC, Cadillac) check engine light codes
Hyundai & Kia
→Hyundai / Kia check engine light codes
Nissan OBD Codes
→Nissan check engine light codes
Mazda OBD Codes
→Mazda check engine light codes
Subaru OBD Codes
→Subaru check engine light codes
Volvo OBD Codes
→Volvo check engine light codes
Land Rover & Jaguar
→Land Rover / Jaguar check engine light codes
Tesla Diagnostics
→Tesla check engine light codes
Tire Size Calculator
→Compare tire sizes & check speedometer error.
Fuel Cost Calculator
→Petrol, diesel & EV running costs with CO₂.
Car Depreciation
→Resale value year by year + chart.
Lease vs Buy
→The honest cost comparison.
Auto Loan Calculator
→Monthly payments & amortization table.
Car TCO Calculator
→Compare 2 cars: all ownership costs.
Auto Unit Converter
→km↔miles, L/100km↔MPG, PSI↔kPa & more.
Best Family Car 2026
→Comparison & interactive finder.
Solar energy
Production, ROI and storage calculators.
Home & renovation
Mortgage, paint and tile calculators plus a cost guide.
Fitness & health
Calories, macros and heart rate zones.
Personal finance
Retirement, salary, loans & compound interest.
Retirement Calculator
→Projected savings, 4% rule & income gap.
Salary Raise Calculator
→Real value of your raise after inflation.
Mortgage Calculator
→Payments, amortization & affordability.
Savings Goal
→Time to goal & monthly target.
Salary Converter
→Annual ↔ hourly, monthly & weekly.
Income Tax
→Federal, FICA, take-home pay.
50/30/20 Budget
→Needs, wants & savings split.
Debt Payoff
→Snowball vs avalanche.
Travel
Trip budgets, flight CO₂ and travel time.
Trip Cost Calculator
→Budget any trip with destination presets.
Flight Carbon
→CO₂ footprint of your flights.
Travel Time
→Time, arrival & pace by mode.
Currency Converter
→Live rates for 30 currencies.
Jet Lag Calculator
→Time difference & recovery days.
Packing List
→Interactive checklist with presets.
Luggage Size
→cm↔in, linear inches & fits check.
Popular Tool Guides
Tool Comparisons
Developer
23 toolsJSON Formatter
Beautify, validate, minify JSON
YAML ↔ JSON
Convert between YAML and JSON
JSON Converter
JSON to CSV, YAML, or text
Base64 Encoder
Encode and decode Base64
URL Encoder
Encode/decode URLs & query params
HTML Entity Encoder
Encode/decode HTML entities
Regex Tester
Test regex patterns live
JWT Decoder
Decode and inspect JWT tokens
Hash Generator
MD5, SHA-256, Bcrypt hashes
UUID Generator
Random Version 4 UUIDs
Password Generator
Strong, secure passwords
Binary Converter
Binary ↔ Decimal ↔ Hex
Cron Parser
Parse cron expressions to schedules
URL Parser
Break down URLs into components
Code Minifier
Minify HTML, CSS, and JS
CSS Formatter
Beautify and minify CSS
JS Formatter
Format and minify JavaScript
SQL Formatter
Beautify SQL queries
JSON → TypeScript
Generate TS interfaces from JSON
CSV to JSON
Convert CSV to JSON
JSON to CSV
Export JSON to CSV
HTML Preview
Live HTML editor and preview
Markdown Preview
Live Markdown editor
Text & Writing
17 toolsWord Counter
Count words, characters, sentences
Case Converter
UPPER, lower, Title, camelCase
Remove Duplicates
Remove duplicate lines
Text Diff
Compare two texts side by side
Lorem Ipsum
Generate placeholder text
Text to Speech
Listen to text read aloud
Email Extractor
Extract emails from text
Phone Extractor
Find phone numbers in text
Number to Words
Convert numbers to FR/EN words
Meta Tag Generator
SEO meta tags with preview
Markdown → HTML
Convert Markdown to HTML
HTML → Markdown
Convert HTML to Markdown
Pig Latin
Translate to Pig Latin
Morse Code
Encode/decode Morse code
ROT13
ROT13 text encoding
Caesar Cipher
Caesar cipher with brute force
Text ↔ ASCII
Convert text to ASCII codes
Design & CSS
8 toolsColor Picker
Pick colors in HEX, RGB, HSL
Color Palette
Generate harmonious palettes
Contrast Checker
WCAG accessibility check
Gradient Generator
Visual CSS gradient builder
Box Shadow
Visual CSS box shadow builder
Flexbox Builder
Visual Flexbox layout generator
Grid Builder
Visual CSS Grid generator
QR Code Generator
Create custom QR codes
Image
11 toolsImage Resizer
Resize images to any dimension
Image Compressor
Reduce image file size
Image to Text (OCR)
Extract text from images
HEIC to JPG
Convert iPhone photos to JPG
SVG to PNG
Convert SVG to PNG image
Image to WebP
Compress images to WebP
Image to ICO
Make favicons & Windows icons
PNG ↔ JPG
Convert between PNG and JPG
Image to PDF
Convert images to PDF
Image to Base64
Encode images as Base64
YouTube Thumbnail
Download YouTube thumbnails
PDF Tools
6 toolsCalculators
15 toolsTimestamp Converter
Unix timestamps ↔ human dates
Temperature
°C, °F, and Kelvin
BMI Calculator
Check your Body Mass Index
Loan Calculator
Monthly payments & interest
Compound Interest
Project savings growth
Age Calculator
Exact age in years, months & days
Due Date Calculator
Estimate your pregnancy due date
Clothing Size
Convert US, UK & EU sizes
Kids Shoe Size
Toddler, kids & youth sizes
Business Days
Count working days
Time Zone Converter
Convert time between zones
Unit Converter
Length, weight, volume, speed
Percentage Calculator
Quick percentage calculations
Tip Calculator
Split bills and calculate tips
Date Calculator
Days between dates
Need a break? Play a brain game
Test your reflexes, memory and logic with our free brain games for devs, investors & creators.
Why Use Our Free Online Tools?
In today's fast-paced digital world, having access to reliable, free online tools is essential for developers, designers, writers, and anyone who works with digital content. Our collection of 83+ free online utilities covers everything from code formatting and data conversion to PDF editing, OCR, image conversion, and everyday calculators — all designed to boost your productivity without costing a dime.
Built for Speed, Privacy, and Reliability
Every tool on our platform runs entirely in your browser. That means your data never leaves your device. Whether you're formatting sensitive JSON data, decoding JWT tokens, converting confidential documents, or running OCR on private images, you can trust that your information stays private. There's no server upload, no data storage, and no tracking.
For Developers, By Developers
We built these tools because we needed them ourselves. As developers, we constantly switch between formatting JSON, testing regex patterns, encoding Base64, and generating hashes. Instead of relying on scattered online tools with ads and data privacy concerns, we created a unified suite of developer utilities that are fast, clean, and reliable. From the JSON Formatter and SQL Formatter to the Cron Expression Parser and JWT Decoder, every tool is crafted with attention to detail.
Perfect for Content Creators and Designers
Writers love our Word Counter, Lorem Ipsum Generator, and Text Case Converter. Designers rely on our Color Palette Generator, CSS Gradient Builder, Box Shadow Generator, and Flexbox/Grid Layout tools. The Meta Tag Generator helps SEO professionals create optimized meta tags with live previews. Every tool is designed to be intuitive — no learning curve required.
Always Free, No Strings Attached
All our tools are 100% free with no usage limits. No registration required, no hidden fees, no premium tiers. We believe essential digital tools should be accessible to everyone. Our revenue comes from non-intrusive ads that help us keep the servers running and the tools maintained.
Frequently Asked Questions
Learn More on Our Blog
Tips, tutorials, and in-depth guides for developers and content creators. Learn how to make the most of our tools.
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