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Aesthetic Text Generator
Convert basic Latin text into a cursive Unicode style.
#online tool#browser tool
#online tool Tools
Browse free online online tool tools, utilities, calculators, converters and productivity workflows.
Free Online online tool Utilities
Use free online online tool tools directly in your browser without installing software. These tools help with formatting, conversion, validation, calculations and productivity tasks.
Popular online tool Tools
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API Request Builder
Send simple HTTP requests from your browser and inspect the response status, headers, and body.
#online tool#browser tool
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Attendance Percentage Calculator
Calculate class attendance percentage from attended and total sessions.
#online tool#browser tool
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Battery Runtime Estimator
Estimate battery runtime from capacity, current load and efficiency.
#online tool#browser tool
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Body Fat Calculator
Estimate body fat with the U.S. Navy circumference method.
#online tool#browser tool
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CSS Border Radius Generator
Choose a border radius and generate the matching CSS snippet.
#online tool#browser tool
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Brainfuck Interpreter
Run Brainfuck snippets in a sandboxed, step-limited browser interpreter.
#online tool#browser tool
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Business Day Calculator
Count weekdays between two dates while excluding optional holidays.
#online tool#browser tool
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Byte Converter
Convert storage sizes between bits, bytes, decimal units, and binary units, or convert data rates.
#online tool#browser tool
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Cement and Sand Mortar Calculator
Estimate cement and sand quantities for plaster or mortar area, thickness and mix ratio.
#online tool#browser tool
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Certificate Maker
Generate a printable HTML certificate with a recipient and achievement.
#online tool#browser tool
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Click Speed Test
Measure clicks per second over a selected short test duration.
#online tool#browser tool
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CSS Clip-Path Generator
Generate a CSS polygon clip path for a decorative five-point shape.
#online tool#browser tool
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Code to Image Generator
Render a simple code snippet as a downloadable PNG image.
#online tool#browser tool
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Coin Flip Simulator
Simulate coin flips and summarize heads and tails counts.
#online tool#browser tool
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Color Blindness Simulator
Preview how an image may appear with common color vision deficiencies.
#online tool#browser tool
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Cement Sand and Aggregate Calculator
Estimate cement bags, sand and coarse aggregate for a concrete volume and nominal mix ratio.
#online tool#browser tool
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Contractor Bill Calculator
Estimate subtotal, tax, retention and payable amount from quantity and rate.
#online tool#browser tool
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Cookie Banner Generator
Generate simple accept and reject optional-cookies banner HTML and CSS.
#online tool#browser tool
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Countdown Timer
Count down to a chosen local date and time directly in your browser.
#online tool#browser tool
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Cover Letter Generator
Create an editable cover letter draft using the role and experience you provide.
#online tool#browser tool
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CSS Animation Generator
Generate a reusable floating keyframe animation in CSS.
#online tool#browser tool
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CSS Button Generator
Generate a button style with color, radius, hover, and focus-visible CSS.
#online tool#browser tool
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CSS Specificity Calculator
Calculate the classic ID, class, and element specificity tuple for a CSS selector.
#online tool#browser tool
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CSS Unit Converter
Convert pixel values to rem units and back using your chosen root font size.
#online tool#browser tool
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CSV Cleaner
Trim CSV cell whitespace and remove blank and duplicate rows.
#online tool#browser tool
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CSV to Excel
Convert a CSV file into an Excel workbook locally in your browser.
#online tool#browser tool
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Currency Rate Calculator
Convert an amount using an exchange rate that you provide.
#online tool#browser tool
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Density Calculator
Calculate density from mass and volume.
#online tool#browser tool
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Discount Calculator
Find savings and the final price after a discount and optional tax.
#online tool#browser tool
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Duplicate File Finder
Find byte-identical files by comparing local SHA-256 hashes.
#online tool#browser tool
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Email Extractor
Find and deduplicate email addresses in pasted text.
#online tool#browser tool
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Email Signature Generator
Create a simple HTML email signature from contact details.
#online tool#browser tool
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Email Validator
Check the basic syntax of an email address without sending it to a server.
#online tool#browser tool
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Excavation Volume Calculator
Estimate excavation volume from length, width and depth.
#online tool#browser tool
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Excel File Viewer
Preview the first sheet of an Excel or CSV file in your browser.
#online tool#browser tool
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Excel to CSV
Convert the first worksheet of an Excel workbook to a downloadable CSV file.
#online tool#browser tool
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Favicon Generator
Crop an image to a square and export it as a favicon-sized PNG.
#online tool#browser tool
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File Comparator
Compare two text files for exact content equality.
#online tool#browser tool
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File Encryptor
Encrypt or decrypt a file locally with AES-GCM and a separately saved key.
#online tool#browser tool
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Flashcard Maker
Create and review a small flashcard deck in the current browser session.
#online tool#browser tool
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Flexbox Generator
Configure flex direction and alignment, then copy the CSS.
#online tool#browser tool
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Freelance Rate Calculator
Estimate a baseline hourly rate from annual income and billable hours.
#online tool#browser tool
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Frequency and Wavelength Converter
Convert wave frequency to wavelength using wave speed.
#online tool#browser tool
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Fuel Cost Calculator
Estimate fuel required and trip fuel cost from distance, efficiency, and fuel price.
#online tool#browser tool
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Greatest Common Divisor Calculator
Calculate the greatest common divisor of two integers.
#online tool#browser tool
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Glassmorphism Generator
Generate a frosted-glass card style using CSS backdrop filters.
#online tool#browser tool
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Glitch Text Generator
Decorate text with randomized Unicode combining marks for a glitch effect.
#online tool#browser tool
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Grade Average Calculator
Calculate unweighted and credit-weighted averages for grades.
#online tool#browser tool
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CSS Grid Generator
Enter a grid-template-columns value and generate a CSS grid snippet.
#online tool#browser tool
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GST Invoice Calculator
Calculate GST and invoice totals from a taxable amount.
#online tool#browser tool
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Habit Tracker
Record dated habit check-ins in local browser storage.
#online tool#browser tool
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Headline Analyzer
Review headline length, word count, question format, and a small set of attention words.
#online tool#browser tool
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Room and House Plan Area Calculator
Calculate room and repeated-room floor area in square metres and square feet.
#online tool#browser tool
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HTML Entity Converter
Encode text for HTML or decode entities with the decode prefix.
#online tool#browser tool
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HTML Table Generator
Create a semantic HTML table from tab-separated data with escaped cell content.
#online tool#browser tool
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HTTP Status Code Reference
Search common HTTP response status codes and read concise explanations of their meaning.
#online tool#browser tool
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Ideal Gas Law Calculator
Calculate ideal gas pressure from amount, temperature and volume.
#online tool#browser tool
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Image Blur Tool
Apply an adjustable blur effect to an image locally in your browser.
#online tool#browser tool
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Image Border Generator
Add a customizable solid-color border around an image.
#online tool#browser tool
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Image Compressor
Compress an image in your browser with adjustable JPEG quality, a live preview, and a downloadable result.
#online tool#browser tool
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Image Cropper
Crop an image by pixel coordinates in your browser and download the cropped PNG.
#online tool#browser tool
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Image Dither Effect
Apply a browser-based ordered color dithering effect and export a PNG.
#online tool#browser tool
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Grayscale Image Converter
Convert an image to grayscale in your browser and download it as a PNG.
#online tool#browser tool
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Image Overlay Tool
Blend a second image over a base image with adjustable opacity and blend modes.
#online tool#browser tool
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Image Pixelator
Create a pixelated effect by reducing image detail with an adjustable pixel size.
#online tool#browser tool
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Image Posterize Effect
Reduce image colors into adjustable poster-style color levels using local canvas processing.
#online tool#browser tool
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Image Region Pixelator
Pixelate a selected rectangular image region locally in your browser.
#online tool#browser tool
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Image Resizer
Resize an image to custom pixel dimensions locally in your browser and download the resized JPEG.
#online tool#browser tool
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Image Rotate & Flip
Rotate images by quarter turns or flip them horizontally and vertically in your browser.
#online tool#browser tool
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Image Threshold Tool
Convert an image to high-contrast black and white with an adjustable luminance threshold.
#online tool#browser tool
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Image Vignette Effect
Add adjustable dark edge shading to a photo with the browser Canvas API.
#online tool#browser tool
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Image Watermark Tool
Add a customizable text watermark to an image and download the result.
#online tool#browser tool
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Electricity Bill Estimator
Estimate an electricity bill from units, a per-unit rate and fixed charges.
#online tool#browser tool
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Invoice Generator
Prepare a simple invoice HTML draft with client and payment details.
#online tool#browser tool
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IP Subnet Calculator
Calculate IPv4 network, mask, broadcast, and address counts from CIDR.
#online tool#browser tool
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JSON Diff
Compare two JSON values and list paths whose values differ.
#online tool#browser tool
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JSON Array to JSON Lines Converter
Convert between JSON arrays and newline-delimited JSON records in your browser with validation and copyable output.
#online tool#browser tool
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JSON Schema Generator
Infer a JSON Schema from a sample JSON value.
#online tool#browser tool
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Keyboard Tester
See recent key presses and browser key codes on this page.
#online tool#browser tool
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Least Common Multiple Calculator
Calculate the least common multiple of two integers.
#online tool#browser tool
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Line Break Cleaner
Replace line breaks with spaces and collapse repeated whitespace.
#online tool#browser tool
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List Sorter and Deduplicator
Sort lines alphabetically with natural number ordering, reverse the order, and remove duplicate lines.
#online tool#browser tool
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Macro Calculator
Estimate maintenance calories and macronutrient targets from basic measurements.
#online tool#browser tool
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Markdown Table Generator
Turn tab-separated rows into a Markdown table with a header separator, ready to copy into documentation.
#online tool#browser tool
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Markdown to HTML Converter
Convert Markdown text to HTML in your browser, preview the source output, and download the result.
#online tool#browser tool
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Material Wastage Calculator
Add a configurable wastage allowance to a base material quantity.
#online tool#browser tool
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Matrix Calculator
Add, subtract, or multiply matrices entered as comma-separated rows.
#online tool#browser tool
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Meeting Agenda Generator
Create a structured meeting agenda with topics, timings, and notes.
#online tool#browser tool
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Meeting Cost Calculator
Estimate meeting cost from attendee count, hourly cost, and duration.
#online tool#browser tool
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Memory Sequence Game
Watch a growing color sequence and repeat it from memory.
#online tool#browser tool
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Vehicle Mileage Calculator
Calculate distance per litre from a trip distance and fuel used.
#online tool#browser tool
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MIME Type Lookup
Look up common MIME types by file extension or search extensions by MIME type.
#online tool#browser tool
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NDJSON Formatter & Validator
Format and validate newline-delimited JSON records in your browser, with line-specific error feedback and downloadable output.
#online tool#browser tool
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Neumorphism Generator
Generate a soft UI shadow and rounded surface CSS style.
#online tool#browser tool
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OpenAPI JSON Viewer
Inspect an OpenAPI or Swagger JSON document and extract its title, version, and API operations.
#online tool#browser tool
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Password Strength Checker
Check password length and character variety locally in your browser.
#online tool#browser tool
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PDF Metadata Viewer
Inspect basic PDF file metadata and page markers locally.
#online tool#browser tool
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Simple Pendulum Calculator
Estimate the period of a simple pendulum using the small-angle model.
#online tool#browser tool
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Permutation and Combination Calculator
Calculate nPr and nCr for valid integer inputs.
#online tool#browser tool
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Personal Loan Calculator
Estimate EMI, total repayment, and interest for a personal loan.
#online tool#browser tool
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Phone Number Extractor
Extract phone-like number strings from text and remove duplicates.
#online tool#browser tool
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Water Pipeline Volume Calculator
Estimate water capacity in a cylindrical pipe from internal diameter and length.
#online tool#browser tool
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Placeholder Image Generator
Create a downloadable PNG placeholder with custom dimensions, background color, and label.
#online tool#browser tool
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Pomodoro Timer
Focus with configurable work and break sessions, pause controls, and completed-session tracking.
#online tool#browser tool
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Power Consumption Calculator
Estimate electricity use and cost from device power and usage.
#online tool#browser tool
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Prime Factorization Tool
Find the prime factors of a positive integer in your browser.
#online tool#browser tool
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Privacy Policy Generator
Draft a privacy policy outline from organization details and review prompts.
#online tool#browser tool
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Private Notes
Keep simple notes in browser storage on this device.
#online tool#browser tool
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Probability Calculator
Calculate simple event probability from favorable and total outcomes.
#online tool#browser tool
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Profit Margin Calculator
Calculate gross profit, margin, and markup from revenue and cost.
#online tool#browser tool
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Project Brief Generator
Draft a project brief with summary, goals, scope, and milestones.
#online tool#browser tool
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Projectile Motion Calculator
Estimate ideal projectile flight time, range and maximum height.
#online tool#browser tool
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PX / REM Converter
Convert pixel values to rem using a 16px root size.
#online tool#browser tool
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Quadratic Equation Solver
Solve a quadratic equation and display its real or complex roots.
#online tool#browser tool
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Question Paper Generator
Turn a list of questions into a printable answer-sheet layout.
#online tool#browser tool
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Ramp Slope Calculator
Calculate ramp slope percentage, angle and length.
#online tool#browser tool
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Random Test Data Generator
Generate sample names, emails, numbers, dates, UUIDs, and booleans.
#online tool#browser tool
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Reaction Time Test
Measure the time between a visual go signal and your click.
#online tool#browser tool
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Reading Time Calculator
Estimate reading time from a passage at an average reading pace of 225 words per minute.
#online tool#browser tool
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Recipe Scaler
Scale a recipe to a different number of servings using a simple multiplier.
#online tool#browser tool
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Regex Explainer
Inspect regex flags, groups, character classes, quantifiers, and test matches.
#online tool#browser tool
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Regex Match Explorer
Inspect regular-expression matches and their character offsets.
#online tool#browser tool
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Regex Pattern Library
Browse common regular expression patterns, copy a pattern, and try it against sample text.
#online tool#browser tool
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Series and Parallel Resistance Calculator
Calculate equivalent resistance for two resistors in series or parallel.
#online tool#browser tool
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Resume Builder
Assemble a plain text resume draft from contact, experience, and education details.
#online tool#browser tool
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Reverse Word Order
Reverse the order of words in a text passage.
#online tool#browser tool
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ROT13 Cipher
Apply the ROT13 letter rotation to encode or decode text.
#online tool#browser tool
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Sales Tax Calculator
Calculate sales tax and the total price from a net price and tax rate.
#online tool#browser tool
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Scientific Constants Explorer
Browse commonly used physical constants and their values.
#online tool#browser tool
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Screen Info Viewer
View your screen and viewport dimensions, pixel ratio, color depth, and browser language.
#online tool#browser tool
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Septic Tank Capacity Estimator
Estimate a preliminary septic tank working volume from occupancy and retention.
#online tool#browser tool
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Sleep Cycle Planner
Estimate sleep times using 90-minute cycle intervals.
#online tool#browser tool
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Smart Quotes Converter
Convert straight quotes, double hyphens, and spaced hyphens to typographic punctuation.
#online tool#browser tool
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Social Image Resizer
Resize an image for common social post, story, avatar, cover, and video thumbnail dimensions.
#online tool#browser tool
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Statistics Calculator
Calculate count, sum, mean, median, mode, range, and population standard deviation.
#online tool#browser tool
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Steel Bar Weight Calculator
Estimate rebar mass using the common d²/162 approximation.
#online tool#browser tool
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Steel and Rebar Schedule Calculator
Estimate total steel weight from multiple rebar diameter, length and quantity rows.
#online tool#browser tool
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Stopwatch
Run a simple browser stopwatch with pause, reset, and lap recording.
#online tool#browser tool
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SVG Optimizer
Remove comments and redundant whitespace from SVG markup locally, preview the output size, and download the optimized SVG.
#online tool#browser tool
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Team Generator
Shuffle a list of names into a chosen number of balanced teams.
#online tool#browser tool
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Terms of Service Generator
Create an editable terms of service outline with prompts for review.
#online tool#browser tool
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Text Case Converter
Convert text between sentence case, title case, uppercase, lowercase, camelCase, snake_case, and kebab-case.
#online tool#browser tool
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Text Encryptor
Encrypt and decrypt text using AES-GCM in your browser.
#online tool#browser tool
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Text File Merger
Combine selected text files into one result that you can copy or download.
#online tool#browser tool
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CSS Text Shadow Generator
Generate a text-shadow CSS rule using a selected color.
#online tool#browser tool
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Text Summarizer
Create an extractive summary by selecting sentences with frequent terms.
#online tool#browser tool
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Text to Speech Reader
Read text aloud with the browser built-in speech synthesis.
#online tool#browser tool
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Text Truncator
Shorten text to a chosen character limit.
#online tool#browser tool
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Tip Calculator
Calculate a tip, bill total, and amount per person when splitting a bill.
#online tool#browser tool
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Typing Speed Test
Measure a short typing sample speed in words per minute.
#online tool#browser tool
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ULID Generator
Generate one or more time-sortable ULIDs locally using browser cryptographic randomness.
#online tool#browser tool
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Unit Price Comparison
Compare two product prices by quantity to see which has the lower unit cost.
#online tool#browser tool
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URL Extractor
Find and deduplicate HTTP and HTTPS links in text.
#online tool#browser tool
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VAT Calculator
Calculate VAT and gross total from a net amount and entered rate.
#online tool#browser tool
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Voltage Divider Calculator
Estimate the output voltage of a two-resistor divider.
#online tool#browser tool
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Water Intake Estimator
Estimate a daily baseline water intake from body weight.
#online tool#browser tool
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Wi-Fi QR Code Generator
Create a scannable QR code for a Wi-Fi network name, security type, and password.
#online tool#browser tool
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Work Hours Calculator
Calculate shift duration after subtracting an unpaid break.
#online tool#browser tool
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Writing Prompt Generator
Generate a short creative writing prompt.
#online tool#browser tool
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XPath Evaluator
Evaluate XPath expressions against HTML or XML text locally.
#online tool#browser tool
Frequently Asked Questions
What are online tool tools?
online tool tools help users perform calculations, formatting, validation, conversion and productivity tasks online.
Are these tools free?
Yes. All tools are completely free to use online.
Are these tools mobile friendly?
Yes. All tools are optimized for desktop, tablet and mobile devices.