Outils gratuits

💰

Software development cost calculator

Estimate your app, web or software project cost in minutes. By type, complexity and timeline. Widely used.

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✨

Project & startup name generator

Generate name ideas for apps, startups and products. By style. Free.

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📝

Character & word counter

Count characters, words and reading time. For Twitter, LinkedIn, SEO and copy. Very popular.

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🔐

Secure password generator

Generate strong random passwords. Configurable length and characters. Very searched worldwide.

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📄

Lorem Ipsum generator

Placeholder text for mockups and designs. Paragraphs or words. Used by designers worldwide.

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%

Percentage calculator

What is X% of Y, what % is A of B. Instant calculations. Widely used.

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⏱

Overtime calculator

Calculate overtime pay: hourly rate, regular and overtime hours, 1.5x or 2x multiplier.

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⚖️

BMI calculator

Body mass index: underweight, normal, overweight, obese. Very searched worldwide.

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🍽

Tip calculator

How much to tip and total to pay. Split between people. Popular for travel.

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Aa

Case converter

UPPERCASE, lowercase, Title Case or aLtErNaTiNg. For titles and SEO.

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🎲

Random number generator

Random number between min and max. For giveaways, tests and games.

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🆔

UUID v4 generator

Unique identifiers for databases and APIs. One or multiple. Used by devs worldwide.

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🔤

Base64 encoder

Encode and decode text to Base64. For URLs, APIs and data.

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{ }

JSON formatter & validator

Pretty print, minify and validate JSON. Used by developers worldwide.

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🕐

Unix timestamp converter

Timestamp to date and date to Unix. Seconds or ms. Very searched by devs.

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📅

Days between dates

How many days between two dates. Deadlines, vacations, projects. Widely used.

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🎲

Dice roller

Roll a dice online: 6-sided or 4, 8, 10, 12, 20. Games and raffles.

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📐

Unit converter

cm to inches, kg to lbs and vice versa. Daily use worldwide.

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🎂

Age calculator

How old you are in years, months and days. Next birthday. Widely searched.

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🎨

Random color generator

Random hex color for design and dev. Copy the code.

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⏳

Countdown timer

Count down to a date and time. Events, deadlines, key dates.

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🏷

Discount calculator

Final price with discount and savings. Sales and deals. Widely used.

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🌡

Temperature converter

Celsius, Fahrenheit and Kelvin. Cooking, science and travel.

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🏠

Mortgage calculator

Estimated monthly payment: principal, rate and term. Indicative.

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▣

QR code generator

Create QR from URL or text. Download PNG. No signup.

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📋

VAT calculator

Add or remove VAT from price. 20%, 10%, 5%. Widely used.

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↔

Palindrome checker

Does it read the same forwards and backwards? Check instantly.

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↩

Reverse text

Flip text right to left. Copy result.

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🚗

Speed calculator

Speed, distance or time: enter two and get the third.

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⏱

Online stopwatch

Digital stopwatch: start, pause, reset. Workouts, study, cooking.

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🔥

Daily calorie calculator

How many calories you need per day (TDEE). Weight, height, age, activity.

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📊

GPA calculator

Grade average with weights. For students. Free.

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