All Toolphy Tools
The complete directory of Toolphy tools. Everything is free, runs entirely in your browser, and requires no account.
Text Utilities
Count, clean and transform text.
- Remove Duplicate Lines — Online Line Remover Remove duplicate lines from text instantly, with options to trim, ignore case, and keep order. 100% browser-based, free, and private.
- Case Converter — Uppercase, Lowercase & Title Case Convert text between uppercase, lowercase, title case, and slug format instantly. 100% browser-based, free, and private — no signup required.
- Word Counter — Word & Character Counter Online Count words, characters, lines, and paragraphs in real time as you type. Free online text analysis — 100% browser-based and private.
- Character Counter — Free Character & Word Count Count characters with and without spaces, words, sentences, paragraphs, and lines in real time, plus a keyword density table. Free and private.
- Reading Time Calculator — Words to Minutes Estimate reading and speaking time from any text. Set your words per minute to get instant minutes and seconds. Free, private, browser-based.
- Slug Generator — Clean URL Slugs from Any Text Turn any text into a clean URL slug. Strip accents, remove punctuation, collapse to hyphens or underscores, drop stop words, and choose the case. Free.
- Diff Checker — Compare Two Texts Online Compare two texts line by line and highlight added, removed, and unchanged lines instantly. Free, private, 100% browser-based diff checker.
- Lorem Ipsum Generator — Free Placeholder Text Generate lorem ipsum placeholder text by paragraphs, sentences, or words. Option to start with the classic "Lorem ipsum dolor sit amet". Free and private.
- Word Frequency Counter — Ranked Word Counts Count how often each word appears in your text. Get a ranked table with counts and percentages, ignore case or stop words, and copy the results. Free.
- Alphabetizer — Sort Text Lines A to Z Online Sort any list alphabetically A to Z or Z to A. Ignore case, skip leading articles, remove duplicates and blank lines. Free, private, browser-based.
Developer Tools
Format, convert, encode and hash.
- JSON Formatter & Validator — Free JSON Beautifier Format, validate, and beautify JSON data instantly with syntax highlighting and error detection. 100% browser-based and completely free.
- Base64 Encoder & Decoder — Online Converter Encode or decode Base64 strings instantly in your browser. 100% client-side processing, no uploads, and completely free.
- Password Generator — Strong Random Passwords Generate secure random passwords with customizable length and character options. Free, private, and always 100% browser-based.
- URL Encoder & Decoder — Free Percent-Encoding Tool Encode and decode URLs and query strings instantly with encodeURIComponent or encodeURI. Detects malformed percent-encoding. Free and private.
- UUID Generator — Generate Random UUID v4 Online Generate random UUID v4 values instantly, one or many at a time, with an optional uppercase format. Free, private, and fully browser-based.
- JSON to CSV Converter — Free Online JSON Converter Convert a JSON array of objects into CSV in your browser. Auto-detect every column, escape values per RFC 4180, then copy or download the result.
- Hash Generator — MD5, SHA-1, SHA-256 & SHA-512 Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from any text instantly with copy buttons. Free, private and 100% online in your browser.
- Random String Generator — Secure Alphanumeric Generate random strings with custom length and character sets — alphanumeric, hex, lowercase or custom. Cryptographically secure and free.
- Unix Timestamp Converter — Epoch to Date & Back Convert Unix timestamps (seconds or milliseconds) to human dates in local time and UTC, and turn any date back into epoch seconds and milliseconds. Free.
- CSV to JSON Converter — Free Online Tool Convert CSV to JSON in your browser. Auto-detect the delimiter, handle quoted fields and newlines per RFC 4180, then copy or download the JSON array.
- JWT Decoder — Read Header & Payload Online Decode any JSON Web Token in your browser: read the header, payload and claims, and see exp, iat and nbf as human dates. Private, no upload, no signature check.
- HTML Encoder & Decoder — Free Online Tool Encode text to HTML entities and decode entities back to text in your browser. Escape &, <, >, quotes and apostrophes, or convert non-ASCII characters.
Calculators & Converters
Percentages, fractions and random tools.
- Percentage Calculator — Increase, Decrease, X of Y Free percentage calculator: find a percentage increase, decrease, or X out of Y in seconds. 100% browser-based, no signup.
- Fraction Calculator — Simplify & Convert Fractions Perform fraction arithmetic, simplify fractions, and convert between fractions and decimals. Free online fraction calculator tool.
- Random Number Generator — Pick Numbers Online Generate random integers or decimals within a custom range. Control duplicates, sorting, and how many numbers to generate.
- Percentage Increase Calculator — Percent Change Calculate the percentage increase or decrease between two values, or find the new value after a percent change. Free, instant and browser-based.
- X out of Y Calculator — Score to Percentage Convert a score X out of Y into a percentage and an estimated letter grade instantly. Free, private, 100% browser-based calculator.
- Percentage Difference Calculator — Compare Values Free percentage difference calculator: compare two values using their average, and see the percentage change between them side by side. Instant and private.
- Dice Roller — Roll D4 to D20 Dice Online Roll one or many dice with 4, 6, 8, 10, 12 or 20 sides, or custom sides, and see each result plus the total. Includes a coin flip.
- Percent Off Calculator — Sale Price & Savings Work out the sale price and amount saved from an original price and a percentage off, or reverse a discount to find the original price. Free and instant.
- Tip Calculator — Tip, Total & Split per Person Free tip calculator: enter the bill, tip percentage and number of people to get the tip amount, total and per-person share. Optional tax rate.
- Random Picker — Pick Random Items From a List Pick random items from a list online. Choose how many winners, avoid repeats, or remove each winner after the draw. Free, private and 100% browser-based.
- Margin Calculator — Gross Margin & Markup Free margin calculator: enter cost and selling price to get gross margin, markup and profit, or find the price needed to hit a target margin.
- Percentage Error Calculator — Accuracy Check Enter a measured and an accepted value to get the percent error, absolute error and signed deviation instantly, with the formula and worked examples.
- Random Team Generator — Balanced Random Teams Split names into balanced random teams. Choose the number of teams or team size, add optional team names, and copy every team in one click. Free and private.
Finance Calculators
Loans, savings, retirement and investing.
- Loan Calculator — Monthly Payment & Total Interest Calculate monthly payments, total interest, and total cost for amortized, deferred, and bond loans. Free and browser-based.
- Auto Loan Calculator — Payment with Tax & Trade-In Calculate monthly car loan payments with sales tax, down payment, trade-in value, and fees included. Free and 100% browser-based.
- Interest Calculator — Compound Interest & Savings Calculate compound interest accumulation with regular contributions, tax adjustments, and inflation impact on buying power.
- Payment Calculator — Monthly Payment & Payoff Time Calculate monthly loan payments for fixed-term loans or determine how long to pay off a loan with fixed payments. Free and browser-based.
- Amortization Calculator — Extra Payments Generate detailed amortization schedules with extra payments support to see how additional payments reduce interest and shorten your loan.
- Investment Calculator — ROI, Growth & Future Value Solve for any investment variable: end amount, contribution, return rate, starting amount, or investment length. Free and 100% browser-based.
- Compound Interest Calculator — APY & Compounding Convert and compare interest rates across different compounding frequencies. See the effective annual rate (APY) instantly.
- Salary Calculator — Hourly to Annual Pay Converter Convert salary between hourly, daily, weekly, monthly, and annual pay frequencies with adjusted figures for time off. Free and browser-based.
- Interest Rate Calculator — Find APR from Payments Find the real interest rate on a loan given fixed monthly payments and loan term. Reverse-engineer APR from payment data.
- Mortgage Calculator — Monthly Payment & Interest Estimate monthly mortgage payments, total interest and total home cost from price, down payment, rate and term, with optional taxes and insurance.
- Savings Calculator — Project Balance & Interest Estimate how your savings could grow with monthly contributions and compound interest. See the projected final balance, total contributed and interest earned.
- Retirement Calculator — Projected Savings & Income Estimate the projected value of your retirement savings from your age, contributions and an assumed annual return, plus an optional 4% income estimate.
- Down Payment Calculator — Loan Amount & LTV Work out your down payment, remaining loan amount and loan-to-value ratio from a home price, then estimate the monthly payment and any PMI that may apply.
- Inflation Calculator — Future & Past Value Estimate how inflation changes the value of money. See the future equivalent, backward buying power, cumulative inflation and the price factor.
- Credit Card Payoff Calculator — Time & Interest Estimate how long it takes to pay off a credit card balance and how much interest you may pay, or the monthly payment needed for a target date.