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Popular searches: Self-employment tax → 401k → Refinance → Mortgage → Capital gains → Student loan →

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Finance & Tax Calculators

The most useful calculators — free, instant, private.

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Mortgage

Payment + amortization

📚 Bilingual guides

Decision Guides

Compare, calculate, decide — in English and French.

LLC vs Sole Proprietorship

Liability, taxes, setup cost and paperwork — an honest head-to-head to help you pick the right structure for your business.

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Roth vs Traditional IRA

The only real question is whether you want to pay tax now or later. Here is how to decide — and why the answer is often “both”.

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Rent or Buy?

The honest math: rent gives flexibility, buying builds equity — but only if you stay long enough. Here is exactly how to decide.

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Wedding Budget Planner

The average US wedding now costs around $30,000. Here is how that money is actually spent — and an interactive budget builder that allocates every dollar.

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US Visa Fee Guide

Every major US visa category and what it costs in 2026 — application fees, the exact fee codes, who pays them, and the extras that trip people up.

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Currency vs Purchasing Power

The exchange rate tells you what money is worth. Purchasing power tells you what it buys. Here is why they diverge — and how to compare income across countries honestly.

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How much is car insurance?

The national average is $2,086 a year — but most drivers overpay by $350+. Here is what coverage really costs and how to cut yours today.

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Pay off your credit card faster

At the average 22% APR, a $6,000 balance at minimum payments takes 22 years. See your real payoff date and how much interest a bigger payment saves.

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How much does a VPN cost?

Paid VPNs run $2–13/month — but paying monthly can cost 3x more than an annual plan for the same service. Here is what to pay and what to avoid.

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What does Medicare cost?

Part B alone is $174.70/month in 2026 — and high earners pay up to 3.6x more through IRMAA. Here is the complete 2026 price sheet and the levers you control.

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How much does a divorce cost?

From $1,500 for an uncontested filing to $50,000+ for a contested trial. The single biggest lever is how you choose to divorce — not who you hire.

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How much does a website cost?

From $25/year with a builder to $20,000+ for a custom build. The monthly-vs-upfront split is where most budgets get confused — here is the full breakdown.

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Home security system cost

From $250 for a DIY camera kit to $2,500+ installed with professional monitoring. Here is exactly what equipment and monitoring cost in 2026.

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How much does college cost?

From $11,000/year at an in-state public school to $60,000+ at a private university — but the sticker price is not what most families pay. Here is the real math.

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What procedures really cost

LASIK runs $2,000–3,000 per eye, Invisalign $3,000–8,000, dental implants $3,000–4,500 each. Here are the real 2026 out-of-pocket ranges — and what insurance covers.

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How much should you ask for?

A $5,000 difference in your starting salary compounds to $150,000+ over a career. Here is what to ask, when to ask it, and the math that proves why.

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Cost of buying a home

Beyond the price tag, buyers pay 2–6% in closing costs, a 3–20% down payment, and up to $200/month in PMI. Here is the complete 2026 checklist.

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How much house can you afford?

Lenders cap housing at 28% of income and total debt at 36%. Here is how to find your real number — before a lender tells you what you can “stretch” to.

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How much do brokers charge?

Commissions are $0 at most brokers now — but expense ratios and advisory fees quietly eat 1%+ a year. Over 30 years, that 1% is worth six figures.

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Compound interest calculator

Einstein’s “eighth wonder of the world”. A $500/month investment at 7% grows to $608,000 in 30 years — $428,000 of it pure interest. See your own number.

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High-yield savings calculator

A 4.5% APY account earns 40x more than a 0.1% regular savings account. On $10,000 that is $460 a year — for doing nothing. See your own number.

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How much does life insurance cost?

A healthy 35-year-old can get $500,000 of 20-year term coverage for about $25/month. Here is what it costs by age, coverage and policy type.

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Personal loan calculator

A $10,000 loan at 12% over 3 years costs $332/month and $1,953 in interest. See your payment, total interest and how terms change the price.

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Tax deductions calculator

A $1,000 deduction saves you exactly $240 if you are in the 24% bracket — not $1,000. Here is what every deduction is really worth, at your rate.

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E-commerce fees calculator

A $50 product on Amazon can cost $7.50+ in fees before shipping — 15% or more of your price. See your real profit per sale on any platform.

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🏠 Home projects

How much does it cost?

Estimate remodels, pools, moving, insurance and more.

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Hotel Cost

By city, per night

🛠️ Dev & creator tools

Tools to get things done

Formatting, conversion, design — 100% in your browser.

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Loan & Interest Calculator

Free, private, no signup — try it now.

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All Our Free Online Tools

Every tool, organized by category.

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Developer

23 tools

JSON 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 tools

Word 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 tools

Color 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 tools

Image 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 tools

Merge PDF

Combine multiple PDFs into one

Split PDF

Extract pages or split PDFs

Compress PDF

Reduce PDF file size

Protect PDF

Password-protect a PDF

PDF to JPG

Convert PDF pages to images

Image to PDF

Convert images to PDF

Calculators

15 tools

Timestamp 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

Browse by category: Developer Tools Text & Writing Tools Design & CSS Tools Image Tools PDF Tools Calculators & Converters

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Explore all games 🔥 Daily Challenge

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Why our tools are built for you

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Latest Articles

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Content Creation

The Ultimate List of AI Tools for Content Creators in 2026

Here's the paradox of being a content creator in 2026: AI can write, edit, and generate almost everything you make — which is exactly why originality is no...

Bright Coding

9m · 2 hours ago

Open Source

valeman/Awesome_Math_Books: Curated Russian Math Classics for Developers

Curated GitHub repository with 6,726 stars cataloging 200+ classic mathematics textbooks, specializing in first-ever English translations of Soviet-era works by Kiselev, Markov, Kolmogorov, and Gelfand.

Bright Coding

10m · 13 hours ago

AI Chatbots

Best AI Chatbot Builders: Free vs Paid Compared

Everyone wants a chatbot. Almost nobody needs one — at least, not until they've answered the question "what is this bot actually for?" The chatbot builder...

Bright Coding

9m · 16 hours ago

Open Source

detailyang/awesome-cheatsheet: Curated Technical Cheatsheets for Developers

detailyang/awesome-cheatsheet is a curated, MIT-licensed index of 200+ technical cheatsheets spanning programming languages, frameworks, editors, and tools. With 8,499 GitHub stars and active maintenance through 2026, it serves as a community-filtered alternative to ad-hoc search for developer quick-reference materials.

Bright Coding

11m · 17 hours ago

Open Source AI

8 Open Source AI Frameworks Every Developer Should Learn

Every developer in 2026 is being told to "learn AI." Few are told *what to actually learn* — and the answer isn't "subscribe to more APIs." The durable ski...

Bright Coding

8m · 22 hours ago

Developer Tools

jamesrochabrun/AgentHub: Native macOS Hub for Claude Code & Codex

AgentHub is a privacy-first macOS app that unifies Claude Code and Codex session management. Monitor agents in real time, review diffs inline, manage Git worktrees, and preview on iOS Simulator—all running locally with no data collection.

Bright Coding

11m · 23 hours ago

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Calculators & tools, free and instant

Finance & Tax Calculators

Self-Employment Tax

Payroll

Capital Gains

401k

Refinance

Student Loan

Dividend

Business Loan

Late Fees

Profit Margin

Break-Even

Mortgage

Decision Guides

LLC vs Sole Proprietorship

Roth vs Traditional IRA

Rent or Buy?

Wedding Budget Planner

US Visa Fee Guide

Currency vs Purchasing Power

How much is car insurance?

Pay off your credit card faster

How much does a VPN cost?

What does Medicare cost?

How much does a divorce cost?

How much does a website cost?

Home security system cost

How much does college cost?

What procedures really cost

How much should you ask for?

Cost of buying a home

How much house can you afford?

How much do brokers charge?

Compound interest calculator

High-yield savings calculator

How much does life insurance cost?

Personal loan calculator

Tax deductions calculator

E-commerce fees calculator

How much does it cost?

Roof

Bathroom

Kitchen

Basement

Windows

AC Unit

Heat Pump

Fence

Deck

Pool

Home Value

Moving

Pet Insurance

Hotel Cost

Tools to get things done

JSON Formatter

OCR

Merge PDF

Password

QR Code

Color Picker

Base64

Regex Tester

Markdown → HTML

Unit Converter

Timestamp

Image Resizer

Loan & Interest Calculator

All Our Free Online Tools

Developer

JSON Formatter

YAML ↔ JSON

JSON Converter

Base64 Encoder

URL Encoder

HTML Entity Encoder

Regex Tester

JWT Decoder

Hash Generator

Calculators & tools,
free and instant