Free Web Tools
A growing set of fast, private utilities that run entirely in your browser — what you enter never leaves your device. Built by Patrick Bushe.
CSS Mask Generator
Free CSS mask generator for gradient fade masks. Preview image and content masks, then copy the CSS locally.
Open ToolPaycheck Split Planner
Free paycheck split planner that allocates each paycheck across bills, savings, spending, and debt categories. Runs locally in your browser for private...
Open ToolAccessible Font Size Checker
Check font size and line-height for readable body copy.
Open ToolCSS Noise Grain Overlay
Free CSS noise and grain overlay generator using inline SVG turbulence. Create subtle texture backgrounds locally.
Open ToolColor Contrast Matrix
Compare multiple foreground and background color pairings.
Open ToolCSS Card Generator
Free css card generator that runs locally in your browser.
Open ToolImage Ruler Measure Overlay
Free image ruler overlay for measuring pixel distance between two clicked points on an uploaded image, all locally in your browser for QA notes.
Open ToolSitemap URL Extractor
Paste XML sitemap content, extract URLs, count them, and copy the list.
Open ToolCSS Clamp Generator
Generate responsive clamp() values for font sizes, spacing, and layout dimensions.
Open ToolGlob Pattern Tester
Free glob pattern tester for matching file paths with star and double-star patterns. Test path lists locally.
Open ToolColor Mixer
Free color mixer that blends two hex colors by ratio and returns the mixed color plus CSS color-mix style output.
Open ToolClothing Size Converter
Free clothing size converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.
Open ToolCSS Position Sandbox
Free CSS position sandbox for static, relative, absolute, and sticky positioning. Preview offsets locally.
Open ToolSVG Path Editor Basic
Free basic SVG path editor for previewing one path d attribute, adjusting the viewBox, wrapping it in SVG markup, and copying the result locally.
Open ToolLottery Number Generator
Free lottery number generator: draw unique random numbers for any lottery format, generated fairly in your browser.
Open ToolFrame Rate Converter
Free frame rate converter that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.
Open ToolGradient Wallpaper Maker
Free gradient wallpaper maker that renders custom color stops to a canvas at common screen sizes and downloads a PNG background locally online.
Open ToolSmart Quotes Converter
Free smart quotes converter: turn straight quotes into typographic curly quotes and dashes, or convert them back to plain ASCII, in your browser.
Open ToolUnicode Character Inspector
Free Unicode character inspector for code points, UTF-8 bytes, and escape forms. Inspect pasted characters locally.
Open ToolCSS Wave Divider Generator
Free CSS wave divider generator that creates SVG section divider data URIs. Customize color and height locally.
Open ToolCSS Skeleton Loader Generator
Free CSS skeleton loader generator with shimmer animation, radius, and row controls. Preview placeholder UI locally.
Open ToolCSS Grid Generator
Generate basic CSS grid layouts from columns and gap values.
Open ToolCTA Generator
Free cta generator that runs locally in your browser.
Open ToolRecurring Date Generator
Free recurring date generator that calculates dates and times locally in your browser with specific examples, limits, and copy-ready output.
Open ToolXOR Cipher
Free XOR cipher tool: encrypt text to hex with a repeating key and decrypt it back, all locally in your browser. For learning, not real security.
Open ToolHex, RGB & HSL Converter with Sliders
Enter a hex or RGB color, see it as HSL, and adjust hue, saturation, and lightness with sliders. Copy the result as HEX, RGB, or HSL.
Open ToolSlogan Length Checker
Free slogan length checker that scores memorability, word count, character count, rhythm, and clarity for short brand lines. Runs locally in your browser...
Open ToolSVG Wave Generator — Section Divider Shapes
Generate smooth SVG wave dividers for section transitions — set amplitude, wave count, flip, and colour, then copy the full-width SVG. Private in your browser.
Open ToolText Diff Checker
Compare two text blocks and list added or removed lines.
Open ToolMacro Split Calculator
Free macro split calculator that converts daily calories plus protein, carb, and fat percentages into grams per day locally for meal planning.
Open ToolBlurhash Style Preview
Free blur preview generator that downsamples an uploaded image into a tiny blurred placeholder canvas and exports a PNG preview locally online.
Open ToolCRC-16 CCITT-FALSE Calculator
Calculate CRC-16 CCITT-FALSE for UTF-8 text using polynomial 1021 and initial FFFF, with a known-vector result generated in your browser safely now.
Open ToolKeyword Permutation Generator
Free keyword permutation generator that combines seed terms, modifiers, locations, and intents into copy-ready SEO keyword lists. Runs locally.
Open ToolInvoice Late Fee Calculator
Estimate late fees by amount, monthly rate, and days overdue.
Open ToolSocial Caption Length Checker
Free social caption length checker for Instagram, LinkedIn, TikTok, Facebook, and X with live character warnings. Runs locally in your browser for private...
Open ToolSVG Viewer — Preview SVG Code Online
Paste SVG code to preview it instantly, read its width, height, and viewBox, check the byte size, and download the file — all locally in your browser.
Open ToolCSS Line Clamp Generator
Free CSS truncate and line-clamp generator for ellipsis text. Preview single-line and multi-line clamping locally.
Open ToolFAQ Schema Generator
Free faq schema generator that runs locally in your browser.
Open ToolHash Type Identifier
Free hash identifier: paste a hash and get the likely algorithms based on its length and format — MD5, SHA family, bcrypt, and more — in your browser.
Open ToolHSL Interactive Wheel
Free HSL color wheel controls for hue, saturation, and lightness with live hex, rgb, and hsl output for CSS palette work.
Open ToolLuhn Check Digit Calculator
Free Luhn calculator: validate a number against the Luhn algorithm and compute the check digit that makes it valid, entirely in your browser.
Open ToolRGB to LAB Converter
Free CIELAB converter: turn an RGB or hex color into CIE L*a*b* values via XYZ, computed locally in your browser.
Open ToolAccessible Text Color Finder
Free accessible text color finder that compares black, white, and custom text over a background with WCAG contrast ratios.
Open ToolKeyboard Shift Cipher
Free keyboard shift cipher moves characters along QWERTY rows by a chosen number of keys. Runs in your browser; no uploads or accounts are used.
Open ToolQuote Wrapper
Free quote wrapper for cleaning, transforming, and checking pasted text. Process content locally in your browser without uploads.
Open ToolWeek Number Calculator
Free week number calculator that calculates dates and times locally in your browser with specific examples, limits, and copy-ready output. No account required.
Open ToolWhitespace Visualizer
Free whitespace visualizer for cleaning, transforming, and checking pasted text. Process content locally in your browser without uploads.
Open ToolAd Copy Length Checker
Free ad copy length checker that runs locally in your browser.
Open ToolBarcode Generator (Code 128 & EAN-13)
Free barcode generator for Code 128 and EAN-13. Type your data and get a scannable SVG barcode, encoded entirely in your browser with no uploads.
Open ToolOrganization + sameAs Schema Builder
Free Organization sameAs schema builder that creates JSON-LD with website, logo, contact URL, and social profile links for clarity. Runs locally.
Open ToolSERP Pixel Width Checker
Preview an SEO title and meta description by estimated Google SERP pixel width. Check truncation risk locally in your browser.
Open Tool401k Contribution Calculator
Free 401k contribution calculator that estimates employee contribution, employer match, and annual retirement savings. Runs locally in your browser for...
Open ToolAccessible Link Style Checker
Free accessible link style checker that runs locally in your browser.
Open ToolASCII Art from Image
Free ASCII art from image tool that converts uploaded image brightness into copyable text characters locally in your browser for quick output.
Open ToolAspect Ratio Calculator
Calculate missing width, height, and simplified ratio for images and layouts.
Open ToolBit Shift Visualizer
Free bit shift visualizer: enter a number and a shift amount to see the binary before and after a left or right shift, and the resulting value, in your browser.
Open ToolBulk URL Slug Generator
Free bulk url slug generator that runs locally in your browser.
Open ToolCSS Text Stroke Generator
Free CSS text stroke generator for outlined headlines. Adjust stroke width, fill, and outline colors locally.
Open ToolInstagram Caption Formatter
Free Instagram caption formatter that cleans line breaks, groups hashtags, and creates a readable caption block to copy. Runs locally in your browser for...
Open ToolPixel Art Editor
Free mini pixel art editor with a paintable 16 by 16 grid, color picker, clear button, and crisp PNG export that runs locally in your browser.
Open ToolRandom Word Picker
Free random word picker for cleaning, transforming, and checking pasted text. Process content locally in your browser without uploads.
Open ToolAcronym Generator
Free acronym generator for cleaning, transforming, and checking pasted text. Process content locally in your browser without uploads.
Open ToolColor Contrast Checker
Check any two colors against WCAG AA/AAA accessibility contrast ratios instantly.
Open ToolColor Palette Generator
Generate tints, shades, copyable hex values, and CSS variables from one base color.
Open ToolFactorial Calculator
Free factorial calculator that uses big integers to compute n! exactly for large n without rounding or scientific notation, in your browser.
Open ToolRandom Sampler
Free random sampler that selects a count or percentage of pasted rows. Shuffle lists, audit datasets, or create review samples locally fast.
Open ToolText Encoding Detector
Free text encoding detector that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.
Open ToolURL Parameter Extractor
Free url parameter extractor that runs locally in your browser.
Open ToolBullet Point Generator
Turn paragraphs into concise bullet points with local sentence parsing, cleanup rules, and adjustable output length.
Open ToolConic Gradient Generator
Free conic gradient generator for pie-style backgrounds, color wheels, badges, and CSS art with copy-ready output.
Open ToolHashtag Cleaner
Free hashtag cleaner that runs locally in your browser.
Open ToolJSON Sorter
Free JSON sorter that recursively sorts object keys for stable diffs and reviews. Format sorted JSON locally in your browser.
Open ToolMeta Pixel Event Cheat Sheet
Free searchable Meta (Facebook) Pixel cheat sheet: standard events, when to fire each, and copy-ready fbq track snippets — all in your browser.
Open ToolPolka Dot Generator
Free polka dot pattern generator: create a dotted pattern image with custom colours, downloadable as PNG, in your browser.
Open ToolQuery String to JSON
Free query string parser: paste a URL or query string to get its parameters as formatted JSON, decoded locally in your browser.
Open ToolRunning Pace Calculator
Free running pace calculator: enter distance and time to get your pace per kilometre and per mile plus average speed, all in your browser.
Open ToolSubscription Revenue Calculator
Free subscription revenue calculator that runs locally in your browser.
Open ToolSVG UI Icon Generator
Design a simple SVG UI icon with shape, stroke, size, and label controls, then copy or download the editable vector privately in your browser.
Open Tool2048
Play 2048 in your browser with arrow keys, touch buttons, tile merging, score tracking, win and game-over states, plus a saved best score too.
Open ToolA/B Test Significance Lite
Free A/B test significance calculator using conversion counts, sample sizes, uplift, z-score, and confidence estimate. Runs locally in your browser for...
Open ToolArticle/BlogPosting Schema Builder
Free article schema builder that creates BlogPosting JSON-LD with headline, author, dates, image, URL, and publisher fields locally. Runs locally.
Open ToolBcrypt Cost Estimator
Free bcrypt cost estimator that explains rounds, relative work, and expected scaling. Compare cost factors without hashing secrets.
Open ToolCost-Plus Pricing Calculator
Free cost-plus pricing calculator that turns unit cost, overhead, and target margin into a recommended selling price. Runs locally in your browser for...
Open ToolCron Expression Explainer
Explain five-field cron expressions in plain English with field breakdowns and common preset examples. Browser-only utility.
Open ToolCSS Grid Gap Visualizer
Free CSS grid gap visualizer for rows, columns, and gutter spacing. Preview gap values and copy grid CSS locally.
Open ToolIcon Sprite Sheet Builder
Free icon sprite sheet builder that combines pasted SVG snippets into one symbol sprite, keeps viewBox values, and generates copy-ready markup.
Open ToolImage Size Calculator
Calculate display size, retina dimensions, and aspect-ratio height.
Open ToolJobPosting Schema Builder
Free JobPosting schema builder that creates JSON-LD with title, hiring organization, location, salary, dates, and apply URL. Runs locally in browser.
Open ToolMeeting Cost Calculator
See what a meeting really costs: attendees x salaries x time, calculated live.
Open ToolRandom Line Selector
Free random line selector for cleaning, transforming, and checking pasted text. Process content locally in your browser without uploads.
Open ToolRobots Meta Tag Generator
Generate robots meta tags for index, noindex, follow, and nofollow directives.
Open ToolTwitter/X Card Preview
Free Twitter/X card preview tool for checking title, description, image URL, card type, and copy-ready meta tags locally. Runs locally in browser.
Open ToolVisual Memory Test
Play a visual memory test with flashing grid squares, growing levels, three lives, click feedback, final level, and a saved best score locally.
Open ToolWord & Character Counter
Count words, characters, sentences, and reading time as you type. Free and 100% private.
Open ToolAI Prompt Cleaner
Turn rough AI prompts into clearer structured instructions with task, context, constraints, output format, and quality checks.
Open ToolAnagram Solver
Free anagram solver for cleaning, transforming, and checking pasted text. Process content locally in your browser without uploads.
Open ToolCheckerboard Generator
Free checkerboard pattern generator: create a two-colour checkerboard image, downloadable as PNG, in your browser.
Open ToolCSS Pattern Generator
Free CSS pattern generator using repeating gradients. Build stripes, grids, and dot patterns locally.
Open ToolCSS Text Shadow Generator
Free css text shadow generator that runs locally in your browser.
Open ToolDownload Time Calculator
Free download time calculator: estimate how long a file takes to transfer at a given connection speed, in your browser.
Open ToolDuotone Palette Builder
Free duotone palette builder that pairs shadow and highlight colors into a preview gradient and CSS variables.
Open ToolEmoji Picker & Copy
Free searchable emoji picker: type a keyword and click to copy any emoji to your clipboard. Works in every browser, entirely client-side.
Open ToolExtended Euclidean Calculator
Free extended Euclidean calculator that returns the gcd and Bézout coefficients for two integers, verifies the identity, and runs in your browser.
Open ToolFletcher-16 Checksum Calculator
Calculate Fletcher-16 from UTF-8 bytes with two modulo-255 rolling sums, and inspect the four-digit non-security checksum in your browser safely now.
Open ToolGradient Angle Visualizer
Free gradient angle visualizer that rotates a two-color linear gradient and returns the exact CSS background value.
Open ToolInitials Avatar Generator
Free initials avatar generator: create a coloured avatar with a name’s initials, downloadable as PNG, in your browser.
Open ToolMesh Gradient Generator
Free mesh gradient generator that layers radial gradients into a soft background with copy-ready CSS for hero and card designs.
Open ToolMoon Phase Calculator
Free moon phase calculator that calculates dates and times locally in your browser with specific examples, limits, and copy-ready output. No account required.
Open ToolMTU Payload Calculator
Free MTU payload calculator that subtracts IPv4 or IPv6 plus TCP or UDP headers and manual option bytes for transparent packet planning in your browser.
Open ToolPlist to JSON Converter
Free XML plist to JSON converter that parses typed dictionaries, arrays, strings, numbers, booleans, dates, and data with strict errors in your browser.
Open ToolRadial Gradient Generator
Free radial gradient generator with shape, position, and two-color controls for copy-ready CSS backgrounds and soft UI effects.
Open ToolString Entropy Calculator
Free string entropy calculator: measure Shannon entropy and estimate password-style bits of strength for any text, computed locally in your browser.
Open ToolTitle Tag Length Checker
Check title tag length and snippet truncation risk locally.
Open ToolUnix Timestamp Converter
Free Unix timestamp converter: turn epoch seconds into a readable date and any date-time into a timestamp, computed in your browser.
Open ToolAIDA Copy Framework Builder
Free AIDA copy framework builder that turns an offer into attention, interest, desire, and action prompts for faster drafts. Runs locally in your browser...
Open ToolAnalogous Palette Builder
Free analogous palette builder that creates neighboring hue swatches around a base color with adjustable spread.
Open ToolCheque Amount in Words
Convert a cheque amount to words with cents in 00/100 format, ready to copy, or spell out any number in words. Free and instant in your browser.
Open ToolColor Code Namer
Free color code namer that finds the nearest common CSS named color for a hex value locally in your browser.
Open ToolCRC-16 MODBUS Calculator
Calculate CRC-16 MODBUS for UTF-8 text with initial value FFFF and reflected polynomial A001, returning lowercase hex locally in your browser.
Open ToolCSS Filter Duotone Generator
Free CSS filter duotone generator for image tint experiments. Preview filter chains and copy CSS locally.
Open ToolCSS Inner Shadow Generator
Free CSS inner shadow generator for inset depth effects. Adjust offset, blur, and color locally.
Open ToolCSS Tooltip Generator
Free CSS tooltip generator for pure-CSS hover tooltips. Customize position, color, and copy-ready CSS locally.
Open ToolCSS Transition Generator
Free CSS transition generator for property, duration, easing, and delay. Preview hover transitions and copy CSS locally.
Open ToolDate Format Converter
Free date format converter that calculates dates and times locally in your browser with specific examples, limits, and copy-ready output. No account required.
Open ToolEnv Parser
Free .env parser that turns key value lines into a table-style JSON view and flags malformed entries locally.
Open ToolFletcher-32 Checksum Calculator
Calculate Fletcher-32 over big-endian UTF-8 word pairs with zero padding for an odd final byte, entirely and transparently in your browser safely now.
Open ToolIdenticon Generator
Free identicon generator: create a GitHub-style symmetric avatar from any text, downloadable as PNG, in your browser.
Open ToolImages to PDF
Turn JPG and PNG images into a single PDF in your browser, one image per page, then download it. Your images are never uploaded to any server.
Open ToolMeme Text Overlay
Free meme text overlay tool that adds top and bottom captions to an uploaded image in canvas and exports the captioned result as a PNG locally.
Open ToolNavy Body Fat Calculator
Free Navy body fat calculator: estimate body-fat percentage with the U.S. Navy tape-measure formula from neck, waist, hips, and height. No calipers needed.
Open ToolPacket Overhead Calculator
Free packet overhead calculator that totals payload, headers, trailers, packet count, protocol bytes, and payload efficiency in your browser.
Open ToolSitemap Splitter
Free sitemap splitter that runs locally in your browser.
Open ToolSpacing Scale Generator
Free spacing scale generator that runs locally in your browser.
Open ToolStripes Pattern Generator
Free stripes pattern generator: create a two-colour striped image in any direction, downloadable as PNG, in your browser.
Open ToolTone Rewriter
Rewrite short text into clearer, warmer, more direct, more professional, or shorter wording using local browser rules.
Open ToolVideo File Size Estimator
Free video file size estimator that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.
Open ToolAim Trainer
Practice mouse aim with 30 random targets, selectable target size, hit and miss tracking, accuracy, average hit time, and browser-saved best.
Open ToolBill Splitter
Free bill splitter that divides shared costs by people and optional weights for rent, trips, meals, or group expenses. Runs locally in your browser for...
Open ToolBrand Color Distance
Free brand color distance checker that compares two hex colors with RGB distance and a practical similarity label.
Open ToolBreakpoint Planner
Generate media query snippets from breakpoint values.
Open ToolCandidate Scorecard Builder
Create a simple candidate scorecard with criteria, evidence notes, and decision prompts.
Open ToolColor Blindness Simulator
Free color blindness simulator for checking a palette under protanopia, deuteranopia, tritanopia, and grayscale views.
Open ToolColor Temperature Adjuster
Free color temperature adjuster that warms or cools a hex color and shows the adjusted value with a live preview.
Open ToolCountdown Timer Builder
Free countdown timer builder that calculates dates and times locally in your browser with specific examples, limits, and copy-ready output. No account required.
Open ToolCSS Columns Generator
Free CSS columns generator for multi-column text layouts. Preview column count, gap, and rule styles locally.
Open ToolCSS Glassmorphism Generator
Free css glassmorphism generator that runs locally in your browser.
Open ToolCSS Ribbon Badge Generator
Free CSS ribbon and badge generator for corner labels. Customize text, color, and placement locally.
Open ToolCustomer Persona Builder
Build a simple customer persona with goals, pains, triggers, objections, and message angles.
Open ToolDJB2 Hash Generator
Calculate the classic 32-bit DJB2 hash for UTF-8 bytes using hash times 33 plus byte, with deterministic local output in your browser safely now.
Open ToolFraction Simplifier
Free fraction simplifier that converts values instantly in your browser. Includes examples, formulas, limits, copy-ready output, and local privacy.
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