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US & UK personal finance tools, calculators, and expert guides Explore tools by category, read supporting guides, and move through related workflows.
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Personal finance & money tools
Live calculators: loans, tax, investing, and budgeting — all run in your browser. Finance hub →
Personal Finance
- Loan Calculator Monthly payments & total cost
- Mortgage Calculator Home loan breakdown
- Credit Card Payoff Pay off your balance faster
- Salary After Tax Net income estimator
- Retirement Planner Savings by target age
- Emergency Fund How many months to save?
- Credit Utilization Calculator Credit usage ratio estimator
- Debt-to-Income (DTI) Calculator Income versus debt obligations
- APR Calculator Annual percentage rate estimate
- Interest Only Loan Calculator Interest-only payment planning
- Early Loan Payoff Calculator See savings from extra payments
- Rent vs Buy Calculator Compare housing decisions
- House Affordability Calculator Estimate realistic home budget
- Down Payment Calculator Target down payment amount
- Closing Cost Calculator Estimate purchase closing costs
- Refinance Savings Calculator Compare old vs new mortgage
- Mortgage Overpayment Calculator Extra payment timeline impact
- Gross to Net Salary Calculator Global salary estimate model
- Pay Raise Impact Calculator Income change after raise
- Bonus Tax Calculator Estimate after-tax bonus
- Freelance Hourly Rate Calculator Price your freelance work
- Overtime Calculator Extra hour pay estimate
- Job Salary Negotiation Calculator Offer comparison and negotiation
Investments & Growth
- Compound Interest Watch your money grow
- Inflation Calculator Purchasing power over time
- ROI Calculator Investment return analysis
- Rental Yield Real estate return calculator
- Dividend Income Estimate dividend earnings
- CAGR Calculator Compound annual growth rate
- SIP Calculator Systematic investment plan growth
- SWP Calculator Systematic withdrawal planning
- Stock Profit Calculator Position gain and loss estimate
- Portfolio Diversification Calculator Asset allocation concentration check
- Risk vs Return Calculator Compare volatility and outcomes
- Dollar Cost Averaging (DCA) Calculator Recurring buy impact estimate
Budgeting & Debt
- Budget Planner 50/30/20 rule & custom
- Debt Comparison Which debt to pay first?
- Net Worth Calculator Assets minus liabilities
- Savings Goal Reach your target amount
- Car Loan Calculator Auto financing breakdown
- VAT Calculator Tax-inclusive & exclusive
- Debt Snowball Calculator Pay smallest debts first plan
- Debt Avalanche Calculator Pay highest APR debts first
- Cost of Living Calculator Location cost comparison
- Subscription Tracker Calculator Recurring expense summary
- Expense Split Calculator Split shared costs fairly
- Savings Rate Calculator Track saving efficiency
- FIRE Calculator Financial independence planning
Developer
Developer hub →- Text encode & decode Encode or decode Base64, URL components, and hex in your browser.
- JSON formatter Validate, format, and minify JSON with clear error messages — all client-side.
- Password generator Generate strong random passwords with length and character options — client-side only.
- Epoch time converter Convert Unix timestamps to human-readable dates and back, in your local time zone.
- JWT Decoder Decode JWT header and payload safely in your browser.
- HMAC Generator Generate HMAC signatures with popular hashing algorithms.
- Text to MD5 Hash text to an MD5 hex digest instantly in your browser — live as you type.
- UUID v6/v7 Generator Generate sortable UUID versions for modern systems.
- Password Strength Checker Evaluate password strength with instant feedback.
- Passphrase Generator Create memorable multi-word passphrases.
- CSV to JSON Converter Convert CSV rows into JSON arrays quickly.
- JSON Diff Tool Compare two JSON documents and highlight changes.
- XML Formatter Format and validate XML text with indentation.
- SQL Formatter Beautify SQL queries for readability and review.
- Base64 Image Encoder/Decoder Convert image files to and from Base64 strings.
- Regex Tester Test regular expressions with live match highlighting.
- HTTP Status Code Checker Check URL response code and redirect behavior.
- API Response Time Tester Measure endpoint latency with repeated requests.
- Webhook Tester Inspect webhook payloads and headers for debugging.
- JSON Schema Validator Validate JSON documents against schema definitions.
- Markdown Preview Tool Write markdown and preview rendered output live.
- Code Minifier (JS/CSS) Minify JavaScript and CSS snippets quickly.
- Code Beautifier Multi-language Format source code across common languages.
- API Request Builder Build and test HTTP requests in a Postman-like flow.
Text
Text hub →- Word counter Count words, characters, lines, and reading time for your text — private and instant.
- HTML beautify & minify Format HTML for readability or minify to a single line in your browser.
- Text case converter Convert text to upper, lower, title, or sentence case without leaving the page.
- Lorem ipsum generator Generate placeholder paragraphs for mockups and layouts.
- Plagiarism Checker (Lite) Basic duplicate-content signal checker for drafts.
- AI Text Detector (Lite) Lightweight heuristic detector for AI-like text patterns.
- Paraphraser Tool Rewrite text while preserving core meaning.
- Sentence Rewriter Rewrite sentence structures for clarity and tone.
- Tone Changer Convert writing between formal and casual tones.
- Sentence Counter + Readability Count sentences and estimate readability metrics.
- Keyword Density Checker Analyze keyword repetition and text balance.
- Readability Score Calculator Compute Flesch-style readability scores quickly.
- SEO Meta Description Generator Generate concise meta descriptions with intent focus.
- SEO Text Score Score page copy against on-page SEO basics: title, meta, keywords, and readability.
- Title Generator Generate high-click headline/title variations.
Image
Image hub →- QR code generator Create QR codes with optional center logo. Logo images are resized in your browser.
- Color picker & converter Pick colors, copy HEX, RGB, and HSL values for design and CSS work.
- Image Compressor Compress image files for web delivery and speed.
- Image Upscaler Upscale low-resolution images with basic enhancement.
- Background Remover Remove image backgrounds for product and design assets.
- Meme Generator Create memes with top and bottom text quickly.
- Thumbnail Generator (YouTube) Generate high-contrast thumbnails for video content.
- Image DPI Converter Adjust image DPI metadata for print workflows.
- Image Format Converter Convert between PNG, JPG, and WebP formats.
- Image Crop Tool Crop images for social, web, and ad dimensions.
- Watermark Tool Apply text or logo watermarks to image files.
Utilities
Utilities hub →- Aspect ratio calculator Compute missing width or height from a ratio (e.g. 16:9) for video and image frames.
- Bitrate calculator Estimate file size, duration, or bitrate for audio and video encoding estimates.
- UUID generator Generate random UUID v4 identifiers for APIs, databases, and testing.
- Text hash (SHA / MD5) Compute MD5, SHA-1, SHA-256 hashes of text in the browser with the Web Crypto API where available.
- Countdown Timer Generator Create embeddable countdown timers for campaigns.
- Timezone Compare Tool Compare local times across multiple cities quickly.
- Work Hours Calculator Calculate worked hours including breaks and overtime.
- Age Calculator Advanced Compute exact age in years, months, and days.
- Random Number Generator Advanced Generate random numbers with custom constraints.
- Dice Roller Roll custom dice sets for games and simulations.
- Team Picker / Random Selector Randomly pick names and create balanced teams.
- IP Address Checker Check your public IP and connection details quickly.
- Browser Fingerprint Checker Review browser fingerprint signals and metadata.
- DNS Lookup Tool Lookup DNS records like A, MX, and TXT.
- URL Shortener Create shorter trackable links for sharing.
- Invoice Generator Create clean invoice documents for clients quickly.
- Receipt Generator Generate printable receipt documents with totals.
- Business Name Generator Generate business name ideas by niche and tone.
- Startup Idea Generator Generate startup ideas from market and problem prompts.
- AI Bio Generator Generate personal and professional bio variations.
- Resume Builder Build structured resumes from guided sections.
- Cover Letter Generator Create tailored cover letters from job descriptions.
- What is X Generator Generate concise explanations for terms and concepts.
- X vs Y Comparison Tool Interactive side-by-side feature and cost comparison.
- Best Tools Finder Find the best tool options by use case and constraints.
- Cost Calculator Simulator Simulate recurring and one-time software costs.
- ROI Simulator Estimate return on investment for campaigns and products.
Growth loop focused architecture
Every tool page is designed to connect users to related tools, supporting blog clusters, and clear next actions. This creates a repeatable flow: tool usage → insight/explanation → related content → next tool. Finance calculators include educational estimates only; review each disclaimer plus our terms and privacy.
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