Jenee

Web Tools to Make Daily Life More Convenient

Free web tools, no registration required.

Calculate dates & deadlines

Deadlines, renewals, and PTO planning. Save and share date results as timeline images.

Date & Days CalculatorCalculate the exact number of days between dates or add days to a date.Working Days & Hours SimulatorCalculate exact working days between dates, excluding holidays and weekends.CountdownCreate and share live countdown timers for your upcoming events.Japanese Era & Age ChartConvert dates between Western years and Japanese Eras instantly.
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Check your health numbers

Caffeine, BMI, sleep, and body fat. All data stays on your device, with history tracking built in.

Caffeine Intake CalculatorTrack your daily caffeine intake and learn your safe consumption limits.BMI CalculatorCalculate your Body Mass Index (BMI) to see your health standing.Sleep CalculatorWhat time should I sleep? Calculate your 90-minute sleep cycles to wake up refreshed.Body Fat CalculatorEstimate body fat percentage using the U.S. Navy method
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Speed up your creative work

Bulk image download and compression, text diff, and color extraction — all in your browser, no install.

Website Image DownloaderExtract and batch download all images from any website just by entering the URL.Image CompressorCompress bulk images without losing visible quality.Text DiffCompare two texts or code snippets to highlight differences instantly.Color Palette GeneratorExtract striking dominant colors from images to build your palette.
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Completely Free & No Registration
No signup, always free
Privacy First
Data stays in your browser
Simple & Intuitive
Easy-to-use design
Works on Any Device
Mobile & desktop ready

All Tools

Utility

Date & Days CalculatorCalculate the exact number of days between dates or add days to a date.Calculator & Scientific CalculatorAdvanced scientific calculator supporting trig functions and history.Japanese Era & Age ChartConvert dates between Western years and Japanese Eras instantly.Internet Speed TestMeasure your internet connection speed (Ping, Download, Upload).IP Address CheckFind your current public IP address and network details instantly.Typing Speed TestTest your typing speed (WPM) and accuracy with engaging practice texts.QR Code GeneratorCreate customized, scan-ready QR codes for URLs, text, and contacts.Unit ConverterEasily convert length, weight, temperature, and more on the fly.PDF ToolsMerge, split, extract, and delete PDF pages securely in your browser.Lucky Color & ItemDiscover your lucky color and item of the day.Birthday CompatibilityCheck compatibility between two people based on zodiac signs and numerology.World ClockView real-time clocks for cities worldwide with analog display and night mode.CountdownCreate and share live countdown timers for your upcoming events.Lucky DrawEnter names or items and draw one winner at random.Pomodoro TimerBoost your focus with a 25-minute Pomodoro timer featuring browser alerts.Working Days & Hours SimulatorCalculate exact working days between dates, excluding holidays and weekends.Progress & Remaining Time DashboardVisualize exactly how much time is left in the day, week, month, and year.Life ClockVisualize your journey and remaining time by entering your birthday and target age.Visual MetronomeSet BPM and time signature to visualize rhythm with a swinging pendulum

Health

Daily Calorie CalculatorFind your Total Daily Energy Expenditure (TDEE) based on your activity level.Alcohol Intake CalculatorEstimate exactly when alcohol will completely clear from your system.Caffeine Intake CalculatorTrack your daily caffeine intake and learn your safe consumption limits.Muscle Mass CalculatorEstimate your total muscle mass and check age/gender reference values.Standard Weight CalculatorDetermine your ideal standard, beauty, and model weights based on height.Sleep CalculatorWhat time should I sleep? Calculate your 90-minute sleep cycles to wake up refreshed.Water Intake CalculatorCalculate your ideal daily water intake for peak hydration and health.BMI CalculatorCalculate your Body Mass Index (BMI) to see your health standing.BMR CalculatorCalculate your Basal Metabolic Rate (BMR) for precise diet planning.PFC Balance CalculatorBreak down your target calories into perfect Protein, Fat, and Carb macros.Body Fat CalculatorEstimate body fat percentage using the U.S. Navy methodStress CheckerEvaluate your current mental stress levels with a quick questionnaire.Baby Growth AssessmentCheck your child's growth percentiles against WHO health standards.AGA DiagnosisSelf-assess male pattern baldness (AGA) progression easily.Sleep Disorder DiagnosisSelf-check your sleep quality and assess risks for insomnia or apnea.Personality DiagnosisUncover your core tendencies with our 4-axis personality assessment.Pregnancy Due DateCalculate your estimated due date and current weeks of pregnancy based on LMP.BAC CalculatorCalculate Blood Alcohol Concentration and estimated time to sober up based on weight and drinks.Heatstroke Risk CheckerEstimate Wet Bulb Globe Temperature (WBGT) and heatstroke risk from temperature and humidity.1RM CalculatorEstimate your One Rep Max (1RM) and view percentage breakdowns based on weight lifted and reps.Blood Pressure CheckerCheck your blood pressure category based on home blood pressure monitoring guidelines.Smoking Cessation SimulatorTrack your smoke-free days, money saved, and health recovery milestones in real time.Lifestyle Disease Risk CheckSelf-check your lifestyle disease risk with 15 questions covering diet, exercise, smoking, drinking and more. View risk scores across 4 categories.

Money

Furusato Tax CalculatorCalculate your maximum Furusato Nozei (Hometown Tax) donation limit.Take-home Pay CalculatorEstimate your exact take-home pay after taxes and social insurance deductions.Consumption Tax CalculatorCalculate Japanese consumption tax (10% & 8%)Electricity Bill SimulatorCalculate estimated electricity costsHigh-Cost Medical Care CalculatorCalculate high-cost medical care benefit limit (Japan)Invoice Number ValidatorValidate Japanese invoice registration numbersRetirement CalculatorVisualize retirement asset lifespanCurrency ConverterConvert currencies in real time with the latest global exchange rates.Asset Formation SimulatorSimulate compound interest and future wealth from recurring investments.Split BillInstantly split the tab equally among friends.DCA vs Lump Sum ComparisonCompare the historical returns of Dollar-Cost Averaging vs Lump Sum investing.Mortgage CalculatorSimulate monthly mortgage payments and visualize the total interest paid.Freelance Income CalculatorCalculate freelance net take-home pay after taxes, insurance, and expenses.

Image

Image Background RemoverRemove image backgrounds instantly with high-precision AI.Image Object RemoverBrush to remove watermarks, objects, text, scratches — free & in-browserImage CompressorCompress bulk images without losing visible quality.Image ResizerResize images for perfect fit on social media and websites.Image Format ConverterConvert images effortlessly between JPG, PNG, and next-gen WebP.Favicon GeneratorGenerate perfectly sized website favicons and app icons from any image.PDF ⇔ Image ConverterConvert PDFs completely to images, or stitch images into a single PDF.Color Palette GeneratorExtract striking dominant colors from images to build your palette.Mock Image GeneratorGenerate placeholder mock images with custom text, sizes, and colors.Website Image DownloaderExtract and batch download all images from any website just by entering the URL.

Text

Letter & Word CounterCount characters, words, and paragraphs for essays or social media.Text DiffCompare two texts or code snippets to highlight differences instantly.Line Break ConverterConvert text line breaks between Windows (CRLF), Mac (CR), and Linux (LF).Line DeduplicationClean up text by automatically removing duplicate list items or lines.HTML Tag RemoverInstantly strip all HTML tags to extract clean, readable raw text.Full-width ⇔ Half-width ConverterConvert alphanumerics, symbols, and katakana between full-width and half-width.Hiragana ⇔ Katakana ConverterConvert between Hiragana and Katakana with one click.Text Case ConverterConvert text between camelCase, snake_case, kebab-case, PascalCase, and SCREAMING_SNAKE.Vertical Text GeneratorGenerate HTML/CSS code to display text in vertical writing mode.Manuscript PaperLayout text into a vertical 400-character Genkou Youshi for printLine Sort & Shuffle ToolDeduplicate, sort, or shuffle lines of text with one click.Byte CounterCalculate string byte size in UTF-8, Shift-JIS, and EUC-JP in real time.Reading Time SimulatorCalculate reading time from word count for Japanese, English, and speed reading.Proofreading CheckerDetect double-keigo, redundant phrases, ra-nuki words, and other issues.Ruby (Furigana) GeneratorGenerate HTML ruby tag code to add furigana readings to kanji.Punctuation CheckerDetect consecutive punctuation, overuse, and long sentences in real time.Text Align FormatterAlign multi-line text with left/right/center padding, handling mixed full-width characters.

Dev

Color Code ConverterConvert between HEX, RGB, HSL, and CMYK color codes instantly.CSS Gradient GeneratorVisually generate beautiful CSS linear and radial gradients.Environment CheckerCheck your browser, OS, and environment details in one click..gitignore GeneratorGenerate perfectly tailored .gitignore files for your dev stack.Base64 Encoder/DecoderEncode or decode strings and files into Base64 format effortlessly.OGP SimulatorPreview exactly how your URL will look on X, Facebook, and LINE.Regex TesterTest regular expressions in real-time with visual syntax highlighting.CSS Flexbox PlaygroundLearn and generate CSS Flexbox layouts visually in real-time.Git Command CheatsheetQuickly search and copy Git commands by what you want to do.Accessibility CheckerAutomatically diagnose WCAG 2.1 accessibility issues in your HTML.

Security

Password GeneratorGenerate highly secure, random passwords instantly to protect your accounts.Password Strength CheckerCheck your password's strength instantly and get actionable security tips.htpasswd GeneratorGenerate .htpasswd files for secure Apache Basic Authentication.Hash GeneratorGenerate cryptographically secure MD5, SHA-1, and SHA-256 hashes.

Games

Arcade AssaultBlast through waves of enemies in this fast-paced space shooter.MinesweeperPlay classic Minesweeper! Use logic to clear the board without detonating bombs.Instant MemoryTrain your short-term memory with a sleek Concentration card match game.Reaction TestTest and improve your visual reaction time in milliseconds.Mental Math SprintRace against the clock in this 60-second rapid mental math challenge.Flash AnzanTrain your raw calculation speed with the Flash Anzan mental math game.Perfect ShapeDraw shapes freehand and get scored on accuracy. Try circles, squares, triangles, and stars.

Useful Articles

Explore articles with tips and insights related to Jenee tools. From security best practices to health management, we share practical information for your daily life.

About Jenee

Jenee is a collection of web tools designed to make your daily life and work a little more convenient. We strive to provide simple and intuitive tools for complex calculations and conversions. We are constantly improving our service based on user feedback.

Learn More About Jenee