Word Counter
Count words, paragraphs, sentences, reading time, and speaking time live.
Free online utilities
Normal tools for normal tasks.
Open a tool, do the thing, leave. No account, no download, and nothing between you and the answer.
Private by default. Most tools stay in your browser, and nothing you enter is saved.
All tools
193 toolsShowing 193 of 193 tools
Text
13Number-to-Words Converter
Write whole numbers, decimals, and currency amounts in plain English words.
Character Counter
Count characters, spaces, lines, bytes, words, and social-post limits live.
Roman Numeral Converter
Convert numbers to Roman numerals or Roman numerals back to numbers.
Markdown Preview
Write Markdown and see a safe live preview with downloadable HTML.
Case Converter
Switch text among upper, lower, title, sentence, camel, snake, and kebab case.
Readability Score Checker
Measure reading ease, grade level, sentence length, and difficult words.
Text Diff Checker
Compare two blocks line by line and highlight additions, removals, and changes.
Lorem Ipsum Generator
Generate placeholder paragraphs, sentences, or words with plain copy output.
Remove Duplicate Lines Online
Remove repeated lines while preserving order, with trim and case options.
Slug Generator
Turn titles or whole lists into clean lowercase URL slugs.
Markdown Table Generator
Turn CSV, tabs, or pasted rows into a clean Markdown table.
Bulk Meta Description Generator
Create consistent, length-checked meta descriptions from pasted page data.
Developer
34JSON Formatter
Validate, indent, minify, sort, and copy JSON in a focused editor.
Password Generator
Generate secure passwords with adjustable length, character sets, and ambiguity rules.
UUID Generator
Generate one or hundreds of cryptographically random UUID v4 identifiers.
Base64 Encoder
Encode or decode Unicode text as Base64 entirely in your browser.
Regex Tester
Test JavaScript regular expressions, flags, captures, and replacements live.
Binary Converter
Convert text, binary, decimal bytes, and hexadecimal in either direction.
URL Encoder
Encode or decode URL components, query values, and full pasted strings.
SQL Formatter
Make dense SQL readable with practical keyword breaks and indentation.
Timestamp Converter
Convert Unix seconds, milliseconds, ISO dates, local time, and UTC.
Hash Generator
Create SHA-1, SHA-256, SHA-384, or SHA-512 hashes with Web Crypto.
JWT Decoder
Inspect a JSON Web Token header, payload, and expiry without uploading it.
Domain Age Checker
Look up a domain registration date through public RDAP data and calculate its age.
JSON Validator
Check JSON syntax and locate the parse error without sending data anywhere.
XML Formatter
Validate and indent XML while preserving element order and attributes.
Cron Expression Generator
Build a five-field cron schedule from readable time and date controls.
HTML Encoder
Escape HTML special characters or turn entities back into readable text.
Code Beautifier
Re-indent common JSON, JavaScript, CSS, HTML, XML, and SQL snippets.
JSON-to-CSV Converter
Convert an array of JSON objects into escaped CSV with automatic headers.
CSV-to-JSON Converter
Parse comma-separated rows into formatted JSON objects in your browser.
HTML Minifier
Remove safe whitespace and comments from HTML and compare byte savings.
CSS Minifier
Compress CSS whitespace and comments for a smaller production file.
JavaScript Minifier
Apply conservative whitespace and comment removal to simple JavaScript.
YAML Validator
Check common YAML syntax and see an exact line for indentation or mapping errors.
YAML-to-JSON Converter
Turn common YAML documents into formatted JSON without sending code anywhere.
Robots.txt Generator
Build a conservative robots.txt file with sitemap and crawler controls.
Chmod Calculator
Build Unix file permissions and copy octal, symbolic, and chmod output.
Subnet Calculator
Split an IPv4 network into smaller subnets and inspect their address ranges.
CIDR Calculator
Calculate IPv4 network range, subnet mask, broadcast address, and host count.
UTM Link Builder
Build a properly encoded campaign URL from source, medium, campaign, and content.
CSP Header Generator
Generate a Content-Security-Policy header from practical resource controls.
JSONPath Tester
Run common JSONPath selectors against pasted JSON and inspect matched paths and values.
CSV Delimiter Converter
Change CSV, TSV, pipe, or semicolon delimiters while preserving quoted cells.
Hreflang Tag Generator
Generate and validate hreflang link tags from language, region, and page URLs.
Nginx Redirect Generator
Turn old and new paths into safe nginx redirect rules in bulk.
Design
8QR Code Generator
Create and download a QR code for text or a URL.
Color Picker
Pick a color and copy matching HEX, RGB, and HSL values.
Favicon Generator
Make square favicon PNGs from a letter, emoji, color, or uploaded image.
HEX-to-RGB Converter
Convert HEX colors to RGB, RGBA, and CSS custom property values.
CSS Gradient Generator
Build a two-color CSS gradient visually and copy production-ready code.
Aspect Ratio Calculator
Find a ratio or calculate the missing width or height without distortion.
Color Palette Generator
Generate harmonious color palettes and copy HEX values or CSS variables.
PX-to-REM Converter
Convert pixels and rem values using any root font size.
Money
42Mortgage Calculator
Estimate principal, interest, taxes, insurance, and monthly housing payment.
Loan Calculator
Calculate monthly payment, total interest, and total cost for a fixed loan.
Compound Interest Calculator
Project investment growth with contributions, compounding, duration, and inflation.
Tip Calculator
Calculate tip, total, and per-person amounts for a restaurant bill.
Discount Calculator
Calculate sale price, savings, stacked discounts, and discount percentage.
Sales Tax Calculator
Add or reverse sales tax and see the subtotal, tax amount, and final total.
Amazon FBA Profit Calculator
Estimate Amazon fees, net profit, margin, and ROI for an FBA product.
Etsy Fee & Profit Calculator
See listing, transaction, payment, ad fees, profit, margin, and break-even price.
eBay Fee & Profit Calculator
Estimate eBay selling fees, costs, profit, margin, and break-even price.
PayPal Fee Calculator
Estimate PayPal fees, take-home amount, and reverse fee gross-up.
Stripe Fee Calculator
Calculate Stripe processing fees, net payout, or the amount to charge.
Fuel Trip Cost Calculator
Calculate gallons, fuel cost, cost per traveler, and refueling stops for a road trip.
Airbnb Host Payout Calculator
Estimate a host payout after service fees, cleaning, taxes, and operating costs.
Shopify Profit Margin Calculator
Estimate order profit after product, shipping, payment, ad, and app costs.
EV Charging Cost Calculator
Calculate home charging cost, cost per mile, and monthly electricity use.
YouTube RPM Calculator
Estimate YouTube revenue from views and RPM or calculate the RPM from actual earnings.
Patreon Earnings Calculator
Estimate Patreon platform and payment fees from monthly membership revenue.
Fiverr Fee Calculator
Estimate Fiverr seller earnings after platform fees, extras, and project expenses.
Upwork Fee Calculator
Calculate Upwork freelancer fees, take-home pay, hourly net, and required client rate.
KDP Royalty Calculator
Estimate Kindle or paperback royalty after delivery or printing costs.
TikTok Shop Fee Calculator
Estimate TikTok Shop referral fees, seller costs, and net margin.
Square Fee Calculator
Calculate Square payment fees and the net amount from a transaction.
Poshmark Fee Calculator
Calculate a Poshmark sale payout, costs, and profit margin.
Depop Fee Calculator
Estimate Depop fees and net profit with editable marketplace rates.
Mercari Profit Calculator
Estimate Mercari selling fees and the profit left after product and shipping costs.
StockX Seller Fee Calculator
Estimate transaction, payment, shipping, and seller-level costs for a StockX sale.
Shopify Break-Even ROAS Calculator
Find break-even ROAS, allowable ad cost, contribution margin, and target ROAS.
Twitch Subscription Revenue Calculator
Estimate monthly Twitch subscription revenue by tier, split, and subscriber count.
Twitch Bits-to-USD Converter
Convert Twitch Bits to the standard creator payout value in US dollars.
Gumroad Fee Calculator
Calculate Gumroad fees and net earnings for a digital product sale.
Kickstarter Fee Calculator
Estimate campaign platform fees, payment processing, failed pledges, and creator proceeds.
Printify Profit Calculator
Calculate print-on-demand profit after production, shipping, and storefront fees.
Redbubble Profit Calculator
Calculate artist margin, retail price, account fees, and take-home profit per sale.
Spring Profit Calculator
Estimate Spring product profit from sale price, base cost, discounts, and order volume.
Amazon Handmade Fee Calculator
Estimate referral fees, production costs, payout, and profit for an Amazon Handmade item.
Grailed Fee Calculator
Calculate Grailed marketplace fees, payment costs, payout, profit, and margin.
Reverb Fee Calculator
Estimate Reverb selling and payment fees for instruments and music gear.
Discogs Fee Calculator
Estimate Discogs marketplace fees, order costs, seller payout, and record-sale profit.
Whatnot Seller Fee Calculator
Estimate Whatnot commission, payment fees, seller payout, and profit.
Ko-fi Fee Calculator
Calculate Ko-fi platform and payment fees for donations, memberships, or shop sales.
Fourthwall Profit Calculator
Estimate creator-store profit after product cost, payment fees, discounts, and shipping support.
Recipe Cost Calculator
Estimate batch cost, cost per serving, target price, and food-cost percentage.
Files
16Image Resizer
Resize an image to exact pixel dimensions while optionally preserving its ratio.
Image Compressor
Compress JPEG or WebP images locally with a visual quality and size comparison.
JPG-to-PNG Converter
Convert JPEG images into lossless PNG files without uploading them.
PNG-to-JPG Converter
Convert PNG images to smaller JPEG files with a chosen background and quality.
WebP-to-JPG Converter
Convert WebP images to compatible JPEG files with quality and background controls.
PDF Merger
Combine multiple PDF files in order and download one merged document locally.
PDF Splitter
Extract a page range or split every PDF page into separate documents.
Image Cropper
Crop an image to exact coordinates or common aspect ratios and download it locally.
SVG-to-PNG Converter
Render SVG markup or a file into a transparent PNG at a chosen size.
Image-to-Base64 Converter
Turn an image into a Base64 data URL or CSS-ready value without uploading it.
CSV Viewer
Paste or open CSV data in a sortable, searchable browser table.
PSD-to-PNG Converter
Open a flattened Photoshop preview and export it as a browser-friendly PNG.
MP3-to-MIDI Converter
Analyze a clear single-note recording and export an experimental MIDI melody.
DWG-to-PDF Converter
Prepare a local CAD drawing for a clean, printable PDF workflow.
Bank Statement PDF-to-CSV Converter
Extract transaction-like rows from a text-based bank statement PDF into editable CSV.
STL-to-G-code Converter
Turn an ASCII STL outline into simple preview G-code with basic printer settings.
Building
28Paint Calculator
Estimate gallons of primer and paint from wall area, coats, and coverage.
Concrete Bag Calculator
Find concrete volume and the number of premix bags needed for a slab.
Gravel Calculator
Estimate cubic yards and tons of gravel from area, depth, and density.
Mulch Calculator
Calculate mulch volume in cubic yards and bags for a landscape bed.
Roof Pitch & Rafter Calculator
Calculate roof pitch, angle, rafter length, and roof area from a few measurements.
Tile Calculator with Waste
Calculate tile area, piece count, boxes, and a realistic waste allowance.
Drywall Sheet Calculator
Estimate drywall sheets, screws, joint compound, and tape for a room.
Fence Material Calculator
Estimate fence panels, posts, rails, pickets, and concrete from a run length.
Deck Material Calculator
Estimate boards, joists, fasteners, and waste for a rectangular deck.
Paver Calculator
Estimate pavers, base material, bedding sand, edge length, and waste for a patio.
Topsoil Calculator
Estimate cubic yards, tons, and bags of topsoil for a lawn or garden bed.
Sod Calculator
Calculate sod square footage, rolls, pallets, and waste for a lawn.
HVAC BTU Calculator
Estimate room cooling or heating BTU from area, ceiling, climate, windows, and occupants.
Insulation Calculator
Estimate insulation area, batts, rolls, bags, and cost with a waste allowance.
Asphalt Driveway Calculator
Estimate asphalt volume, tons, truckloads, and material cost for a driveway.
Roofing Shingle Bundle Calculator
Calculate roof squares, shingle bundles, underlayment, nails, ridge caps, and waste.
Retaining Wall Block Calculator
Calculate wall blocks, cap blocks, base gravel, drainage stone, and geogrid rows.
Pond Liner Calculator
Find the liner dimensions, surface area, overlap, and approximate water volume for a pond.
French Drain Gravel Calculator
Estimate trench gravel, fabric area, pipe length, and drainage volume for a French drain.
Wallpaper Roll Calculator
Estimate wallpaper strips and rolls while allowing for pattern repeat and waste.
Board Foot Calculator
Calculate lumber board feet, total volume, and cost for multiple pieces.
Stair Stringer Calculator
Find riser count, exact rise, total run, stringer length, and stair angle.
Stud Wall Calculator
Estimate studs, plates, blocking, and lumber length from wall dimensions and spacing.
Pipe Volume Calculator
Calculate the internal volume, gallons, liters, and fluid weight inside a pipe run.
Ramp Slope Calculator
Calculate ramp slope, angle, required run, and landing count from rise and ratio.
Gutter Size Calculator
Estimate adjusted roof drainage area, runoff flow, gutter size, and downspout count.
AC Tonnage Calculator
Estimate air-conditioner tonnage and BTU capacity from conditioned area and climate load.
Construction Estimate Generator
Build a clean labor-and-material estimate and print it as a customer-ready PDF.
Hardware
16Online Gamepad Tester
Check every button, trigger, stick, and D-pad input live.
Screen PPI Calculator
Calculate pixel density, pixel pitch, and physical screen dimensions.
Touchscreen Dead-Zone Tester
Draw across your screen to find missed touch areas and dead zones.
Camera Shutter Count Checker
Read the shutter count stored inside an original camera photo.
Ohm's Law Calculator
Solve voltage, current, resistance, and power from any two known electrical values.
Voltage Drop Calculator
Calculate voltage loss, drop percentage, load voltage, and wire power loss.
Wire Size Calculator
Estimate copper wire gauge from current, run length, voltage, phase, and drop target.
Battery Runtime Calculator
Estimate usable battery energy and runtime from voltage, amp-hours, and load.
TV Viewing Distance Calculator
Find a comfortable viewing distance range from television size and resolution.
Projector Throw Distance Calculator
Calculate throw distance, image width, screen height, and projector placement range.
Generator Wattage Calculator
Estimate running watts, startup surge, and a safe generator size.
Solar Panel Output Calculator
Estimate daily and monthly solar energy from panel size, sun hours, and losses.
LED Resistor Calculator
Calculate a safe series resistor, resistor power, and standard value for one or more LEDs.
UPS Runtime Calculator
Estimate backup runtime from battery capacity, voltage, load, efficiency, and safe discharge.
Solar Battery Bank Calculator
Size a battery bank from daily energy use, autonomy, voltage, depth of discharge, and losses.
Speaker Box Volume Calculator
Find gross and net enclosure volume after driver, port, bracing, and panel displacement.
Planning
32Percentage Calculator
Solve common percentage, increase, decrease, and percent-change questions.
BMI Calculator
Calculate body mass index from metric or US measurements with standard ranges.
Age Calculator
Calculate exact age in years, months, days, total days, and the next birthday.
Unit Converter
Convert common length, weight, temperature, area, volume, and speed units.
Random Number Generator
Generate unique or repeated random integers within any range.
Time Zone Converter
Compare a date and time across major IANA time zones with daylight saving handled.
Date Difference Calculator
Find the exact years, months, weeks, days, hours, and business days between dates.
Online Stopwatch
Run a precise browser stopwatch with pause, reset, and lap times.
Countdown Timer
Set a browser countdown with pause, reset, completion alert, and fullscreen digits.
Calorie Calculator
Estimate daily calorie needs from age, body measurements, sex, and activity.
GPA Calculator
Calculate weighted semester GPA from course credits and grade points.
Grade Calculator
Calculate a weighted course grade and the score needed on a remaining exam.
Dice Roller
Roll common tabletop dice with modifiers, totals, history, and cryptographic randomness.
Coin Flip
Flip one or many fair virtual coins and track heads, tails, and streaks.
Pool Volume Calculator
Calculate gallons, liters, water weight, and fill time for rectangular or oval pools.
Aquarium Volume Calculator
Calculate aquarium gallons, liters, water weight, and substrate volume.
Coffee Ratio Calculator
Calculate coffee and water amounts for any brew ratio or serving size.
Rice-to-Water Ratio Calculator
Calculate water, yield, servings, and cook-time guidance by rice type and cooking method.
Turkey Thaw Time Calculator
Estimate refrigerator or cold-water thawing time from turkey weight and start time.
Meat Cooking Time Calculator
Estimate roasting time, finish window, and resting time by meat, weight, and doneness.
Pizza Dough Calculator
Calculate flour, water, salt, and yeast for any number of dough balls.
Sourdough Calculator
Calculate flour, water, starter, salt, and final dough weight from baker's percentages.
Bread Hydration Calculator
Calculate baker’s percentages, dough hydration, and total dough weight.
Cake Pan Size Converter
Scale cake batter between round, square, or rectangular pan sizes by area.
Yeast Converter
Convert instant, active dry, and fresh yeast amounts in grams, teaspoons, and ounces.
Sewing Fabric Yardage Calculator
Estimate fabric yardage from piece dimensions, quantity, width, and waste.
Wedding Seating Chart Builder
Arrange guests into tables, spot open seats, and print a simple seating plan.
Photography Contract Generator
Draft a plain-language photography agreement from your project details.
Shipping Dimensional Weight Calculator
Compare actual and dimensional package weight for common carrier divisors.
Pallet Loading Calculator
Estimate cartons per layer, total cartons, loaded height, and gross weight.
Propane Usage Calculator
Estimate propane consumption, runtime, tank fills, and fuel cost from appliance BTU.
Cocktail Dilution Calculator
Estimate final drink volume, dilution, and ABV after stirring or shaking with ice.
Names
4Podcast Name Generator
Generate focused, memorable podcast names from a topic and tone.
Band Name Generator
Generate band names by genre, mood, and naming style.
Clan Name Generator
Generate short, usable clan names and tags by game style.
D&D Name Generator
Create fantasy character names by ancestry and style for tabletop games.