All Tools — Free Online Utilities

Convert CSV/TSV data into beautifully formatted ASCII or Markdown tables.

Generate barcodes in Code 128, Code 39, EAN-13, UPC-A, and ITF-14 formats and download as SVG or PNG.

Encode or decode Base64 strings — works for text and files.

Convert numbers between binary, hexadecimal, octal, and decimal bases instantly.

Convert plain text to binary, hexadecimal, octal, or decimal — and back — with a per-character breakdown.

Generate a custom CSS reset stylesheet with preset options.

Calculate and compare CSS selector specificity (A, B, C).

Convert CSS properties to the nearest Tailwind CSS classes

Convert CSV data to JSON and JSON arrays back to CSV — with delimiter options and live preview.

Format and beautify code across multiple languages with configurable indentation.

Measure lines of code, cyclomatic complexity, nesting depth, and maintainability

Side-by-side code diff with syntax highlighting and patch export

Count total, blank, comment, and code lines in any pasted code with language auto-detection.

Convert code snippets to beautiful shareable PNG images.

Convert colors between HEX, RGB, HSL, HSV, and CMYK — with live preview.

Generate harmonious color palettes — complementary, triadic, analogous, and split-complementary — from any base color.

Parse and explain cron expressions in plain English — see the next 10 scheduled run times.

Convert any date string between ISO 8601, Unix timestamp, RFC 2822, and 10+ other formats.

Generate favicon files in multiple sizes from text or an uploaded image using Canvas API. Download individual PNGs or a ZIP with all sizes and ready-to-use HTML link tags.

Convert between file size units — bits, bytes, KB, MB, GB, TB, PB — in decimal (SI) and binary (IEC) modes.

Identify any file's true type by reading its magic bytes — no upload required.

Interactive reference of 80+ essential Git commands, organized by category with search and favorites.

Generate conventional commit messages following the Conventional Commits spec with type, scope, emoji prefix, breaking change flags, and issue references.

Minify HTML, CSS, and JavaScript to reduce file size — runs entirely in your browser.

Generate a complete, customisable HTML starter template in seconds.

Searchable reference of HTML entities with named, numeric, and hex forms — click to copy.

Encode special characters to HTML entities and decode entities back to plain text — supports named and numeric entities.

Live HTML, CSS, and JS editor with instant preview

Build HTML tables visually with cell editing, merging, and styling options.

Convert HTML to clean Markdown with support for tables, code blocks, and nested elements.

Complete reference of all standard HTTP status codes with descriptions and examples.

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text or files — runs offline in your browser.

Enter an IPv4 address with a CIDR prefix or subnet mask to calculate network address, broadcast, host range, wildcard, and binary breakdown.

Look up the country, city, ISP, timezone, and map location of any IP address instantly.

Divide an IPv4 network into equal subnets or use VLSM to allocate subnets by host requirement.

Convert any image file to a Base64-encoded data URI string.

Paste CSV data to get a sortable, filterable, paginated data table

Side-by-side Markdown syntax and rendered output with a live playground.

Format, validate, and explore JSON with syntax highlighting, JSONPath browser, tree collapse, and schema inference.

Deep-compare two JSON objects and visualize added, removed, and changed keys.

Format, validate, and minify JSON — with syntax error pinpointing.

Format JSON with syntax highlighting or strip whitespace to minify — with real-time validation and size stats.

Generate JSON Schema (draft-07) automatically from a sample JSON object.

Validate JSON data against a JSON Schema with detailed path-level error messages.

Visualize JSON as an interactive collapsible tree with type highlighting.

Convert JSON to CSV and CSV to JSON with nested object flattening and smart type detection.

Convert JSON arrays into formatted HTML tables with sorting, zebra striping, and CSV export.

Convert JSON objects into TypeScript interface or type alias definitions automatically.

Convert JSON to well-formed XML with indentation, custom root element, and attribute mode.

Convert between JSON and YAML instantly in your browser.

Execute JSONPath expressions against JSON data to extract, filter, and explore nested structures.

Browse and explore the free JSONPlaceholder REST API interactively

Decode and inspect JWT tokens — header, payload, and signature — without any server round-trip.

Beautify, minify, and validate JavaScript and JSON code

Apply basic obfuscation transformations to JavaScript code: variable renaming, string encoding, and whitespace removal.

Run and test JavaScript code directly in your browser with console output.

Press any key to see its keyCode, key, code, charCode, and more.

Searchable keyboard shortcuts for Windows, macOS, VS Code, Chrome, Excel, Word, Figma, Photoshop, and Terminal.

Test every key on your keyboard with a visual QWERTY layout.

Generate Lorem Ipsum placeholder text by paragraph, sentence, word, or byte count — with HTML and plain text output.

Generate full HTML page templates with lorem ipsum for mockups and wireframes.

Convert Markdown to clean HTML with live preview, table of contents, and downloadable full-page output.

Generate SEO-optimized HTML meta tags with live Google and Twitter card preview.

Translate text to Morse code and Morse code back to text — with audio playback.

Measure your network latency and basic download speed using real HTTP requests.

Convert numbers between binary, octal, decimal, and hexadecimal — instantly with bitwise breakdown.

Convert numbers between any bases 2–36 with arbitrary precision, negatives, and floating point support.

Convert numbers to English words — up to trillions, with ordinal and currency formats.

Create strong, random passwords with customizable length and character sets — runs offline.

Generate placeholder image URLs and embed code using placeholder.com and Picsum.

Create custom QR codes for URLs, text, Wi-Fi, contacts and more — free, no signup.

Generate customizable QR codes for URLs, text, email, phone, SMS, WiFi, and vCard with color and size options.

Scan QR codes using your device camera or upload an image — decode any QR code in your browser.

Build and send HTTP requests directly from your browser with headers, body, and query params.

Roll dice, flip coins, draw random cards, and generate random numbers — all cryptographically random.

Interactive regular expression reference with live pattern testing and match highlighting.

Searchable library of 50+ common regular expression patterns with live tester.

Visual regex testing with color-highlighted matches and capture groups.

Generate regex patterns automatically from positive and negative example strings.

Test regular expressions with real-time match highlighting, capture groups, and replace mode.

Generate a robots.txt file with presets for common crawlers and custom user-agent rules.

Convert between Arabic numbers and Roman numerals — supports 1 to 3,999,999 with extended notation.

Convert between Roman numerals and decimals with vinculum support

Beautify and format messy SQL queries with proper indentation and keyword casing — instantly.

Visual SQL query builder for SELECT, INSERT, UPDATE, DELETE

Draw and edit SVG shapes in the browser

Combine multiple SVG icons into a single sprite file with usage snippets.

Display your screen resolution, viewport, device pixel ratio, browser details, hardware concurrency, and more.

On-screen pixel ruler with draggable guides and measurement pins for design work.

Hash strings with MD5, SHA-1, SHA-256, SHA-512, CRC32, and FNV-1a

Pad, trim, repeat, replace, wrap, escape, and extract substrings — all in one place.

Interactive searchable reference for 200+ Tailwind CSS v3 utility classes.

Convert CSV, TSV, or delimited text to HTML table, Markdown, or JSON

Convert any text into a clean, URL-friendly slug instantly.

Visualize text as colored bit patterns, toggle individual bits, and perform byte-level AND/OR/XOR/NOT operations.

Percent-encode or decode URLs and query parameters — full and component modes.

Break any URL into its components or assemble a URL from parts — with a live query-param editor.

Simulate URL shortening with localStorage-based link tracking.

Generate UUID v4, UUID v7, ULIDs, and Nano IDs — bulk generation with one click.

Convert any character or string between Unicode representations: U+ notation, decimal, hex, HTML entities, CSS content, URL encoding, UTF-8/UTF-16 bytes, and binary.

Convert between metric and imperial units — length, weight, temperature, area, volume.

Convert Unix timestamps to human-readable dates and back — supports seconds, milliseconds, and microseconds.

Build and send HTTP requests from your browser and inspect the response in detail.

Format, validate, and minify XML with syntax highlighting.

Validate YAML syntax and convert it to formatted JSON — entirely in your browser.

Build and generate cURL commands interactively

Convert cURL commands into JavaScript fetch(), Axios, or Python requests code.

Visually build <iframe> embed code with full control over size, sandbox policies, permissions, and loading strategy.

Convert between units across 8 specialized categories including pressure, energy, force, and fuel economy.

Calculate your exact age in years, months, days, hours, and minutes.

Calculate the exact age difference between two people

Calculate image and video aspect ratios — find dimensions for any ratio, scale images proportionally.

Calculate your Body Mass Index in metric or imperial units — instant result, no signup.

Calculate compound interest growth with monthly contributions — see your investment grow over time with a chart.

Calculate the difference between two dates or add/subtract days, weeks, months, and years from any date.

Solve linear, quadratic, cubic, and simultaneous equations with step-by-step working.

Visualize the Fibonacci sequence, animated golden spiral, and ratio convergence toward φ.

Add, subtract, multiply, and divide fractions with step-by-step working and visual fraction bars.

Plot mathematical functions interactively on a canvas with a safe recursive descent parser. Supports multiple functions, zoom/pan, intercepts, and local extrema.

Calculate great-circle distance between two locations using the Haversine formula.

Calculate monthly payment, total interest, and full amortization schedule.

Perform matrix operations — add, subtract, multiply, transpose, determinant, and inverse — with step-by-step working.

Perform addition, subtraction, multiplication, transpose, determinant, and inverse on matrices up to 5×5.

Format any number as locale separators, scientific notation, engineering notation, words, abbreviations, Roman numerals, and more — all at once.

Generate arithmetic, geometric, Fibonacci, prime, and custom number sequences.

Generate classic number sequences, identify an unknown sequence, or define a custom one.

Convert numbers to ordinal form, ordinal words, and Roman numerals.

Convert numbers to Roman numerals and back — supports up to 3,999,999 with vinculum.

Check how strong your password is — entropy score, crack time estimate, and actionable improvement tips.

Compute percentages, increases, decreases, tips, and percentage-of-total — six modes.

Factorize numbers up to 10¹⁵ with SVG factor trees

Check if any number up to 10¹² is prime, see its factorization, and explore related prime facts.

Full scientific calculator with trig, logarithms, powers, and history — runs entirely in your browser.

Convert numbers between standard, scientific, engineering, and E-notation with significant-figure rounding.

Convert speed between m/s, km/h, mph, knots, ft/s, Mach, and more.

Solve for speed, distance, or time given the other two values with automatic unit conversion.

Calculate mean, median, mode, standard deviation, variance, and more from any dataset.

Convert temperatures between Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur instantly.

Calculate tip amount and split the bill between any number of people — with custom tip percentage.

Convert weight and mass between all common units instantly

Bidirectional Morse code converter with audio playback and microphone decode.

Convert text to 14+ cases instantly — camelCase, PascalCase, snake_case, kebab-case, dot.case, and more.

Deep statistical analysis of any text: word frequency, readability, syllables, letter distribution, and more.

Find all valid English anagrams and sub-words from any set of letters.

Count characters, words, and reading time with platform limit progress bars.

Analyze letter and character frequency in any text — great for cryptography.

Paste any text and instantly extract all valid email addresses — with deduplication.

Translate text between 20 languages using a free API

Write Markdown on the left and see live rendered HTML on the right.

Generate placeholder text in multiple flavors — classic Latin, pirate, corporate jargon, tech buzzwords, or hipster — with custom word lists.

Split-pane Markdown editor with instant HTML preview.

Create Markdown tables visually — edit cells, add/remove rows and columns, set alignment.

Convert Markdown to clean HTML — with live side-by-side preview.

Decode Morse code by typing dots and dashes or tapping the interactive tap button.

Check if a word or phrase reads the same forwards and backwards, with options to ignore case and punctuation.

Analyze text readability with Flesch, Gunning Fog, SMOG, and more readability scores.

Estimate reading and speaking time plus readability stats for any text.

Convert text between UPPERCASE, lowercase, Title Case, camelCase, PascalCase, snake_case, and kebab-case instantly.

Compare two text blocks and highlight additions, deletions, and changes — line-by-line diff with word-level highlighting.

Compare two texts with word-level, character-level, or line-level diff highlighting.

Sort, deduplicate, reverse, number, and shuffle text lines

Repeat any text a specified number of times with custom separators, prefix, and suffix.

Measure how similar two texts are using cosine, Jaccard, and Levenshtein metrics.

Summarize long articles and documents using extractive TF-IDF sentence scoring — no AI API required. Highlights summary sentences and extracts key phrases.

Reverse text, flip upside-down, sort lines, remove duplicates, shuffle, and more text utilities.

Wrap or reflow text to a fixed line width.

Convert text to Morse code and play it as audio

Browse and copy Unicode characters, symbols, emoji, and more.

Count words, characters, sentences, paragraphs, and estimated reading time.

Paste any text to generate a word cloud visualization scaled by frequency, with color options and PNG download.

Advanced real-time text analysis with readability scores, keyword density, and export.

Look up definitions, synonyms, and examples for any English word

Analyze text to find word frequency, top keywords, and density — useful for SEO and content analysis.

Compare two texts word by word with color-coded additions, deletions, and changes side by side.

Feature-rich browser whiteboard with layers, undo/redo, and PNG export.

Calculate, simplify, and scale aspect ratios

Build CSS box-shadow values visually with live preview — supports multiple layers.

Build CSS @keyframes animations visually with live preview, timing controls, and cubic-bezier easing editor.

Preview and customise CSS keyframe animations live, then copy the ready-to-use CSS code.

Visually build CSS borders, outlines, and box-shadows with live preview and instant code output.

Visually generate CSS clip-path shapes — polygon, circle, ellipse, inset — with draggable handles, preset shapes, and live preview.

Build a complete CSS design token system with colors, typography, spacing, shadows, and export to CSS, SCSS, JS, or Tailwind.

Build CSS filter effects visually with live preview — blur, brightness, contrast, sepia, hue-rotate, and more.

Visually configure Flexbox properties and get the generated CSS instantly.

Generate CSS glassmorphism effects with live preview and code export

Visually build CSS linear and radial gradients and copy the ready-to-use CSS property.

Visually build CSS Grid layouts by dragging items across cells and export the CSS.

Visually design CSS borders, shadows, and frames for images and copy the code.

Generate pure CSS loading spinners and animations with live preview.

Browse all 140 CSS named colors as swatches, filter by hue, sort by name or lightness

Generate animated CSS neon glow text effects with live preview

Generate CSS neumorphism / soft UI box-shadow styles with live preview.

Generate pure CSS triangles and arrows with live preview using the border trick or clip-path.

Convert a CSS value between px, rem, em, %, vw, vh, pt, cm, mm, and in all at once.

Check WCAG contrast ratio for foreground and background colors.

Preview how your images look to people with different types of color blindness.

Check WCAG 2.1 contrast ratios for foreground/background color pairs and get pass/fail results instantly.

Generate complementary, triadic, and other color palettes from any base color.

Mix two colors using RGB, RYB subtractive, HSL, or perceptual Lab blending modes with a live gradient preview.

Find the closest CSS named color for any hex or RGB value.

Extract dominant colors from any image using k-means clustering with CSS, Tailwind, Figma, and ASE export.

Extract a dominant color palette from any image using k-means clustering.

Advanced color picker with eyedropper, history, and 6 format outputs

Generate harmonious color palettes from a base color using complementary, analogous, triadic, and other harmony rules.

Convert color temperature in Kelvin to RGB and hex color values.

Interactive HSL color wheel with harmony suggestions and palette export.

Find the nearest Tailwind CSS color class for any color

Pick any color from your screen and instantly see it in HEX, RGB, HSL, and CMYK formats.

Browse curated Google Fonts pairings, preview heading and body text live, and copy ready-to-use CSS snippets.

Generate CSS clamp() fluid typography values for responsive font sizes.

Create stunning CSS mesh gradients with draggable control points.

Create stunning CSS gradient text effects with live preview

Browse and search all 140 named HTML/CSS colors with HEX and RGB values.

Interactive color picker with HSL, RGB, HEX, and HSV support

Transform typed text into a realistic handwriting-style image and download as PNG.

Upload an image and extract its dominant colors as a beautiful palette.

Create beautiful multi-stop CSS gradients visually with drag-and-drop stops.

Calculate PPI, total megapixels, and pixel dimensions for any screen or print.

Render text in retro pixel/bitmap fonts and export as PNG or text art.

Generate random single colors or harmony-aware palettes with HSL constraints, locked colors, export to CSS/HEX/RGB/HSL, and palette history.

Generate CSS or SMIL animations for SVG elements

Browse 200+ categorised SVG icons, customise colour and size, and copy or download.

Paste an SVG path `d` attribute, render it live with a grid, and explore each parsed path command.

Generate tileable SVG patterns for backgrounds with live preview

Create decorative SVG wave dividers for websites with live preview and one-click download.

Convert SVG markup into a CSS background-image data URI — URL-encoded or base64.

Pick any color from your screen and get harmonies, accessibility, and conversions.

Live font preview with Google Fonts and side-by-side comparison

Calculate and track your budget using the 50/30/20 rule.

Track monthly income and expenses, visualize spending by category, and export your budget to CSV.

Compare planned budget against actual spending with visual charts

Validate card numbers with Luhn check and detect card network

Convert between 30 major world currencies with a mini rate table — no API needed.

Live currency exchange rates and converter

Track personal expenses by category, set monthly budgets, and visualize spending with summaries and trends.

Calculate purchasing power and inflation impact using historical CPI data from 1913–2025.

Project investment growth with compound interest and charts

Project investment growth with charts, scenarios, and inflation-adjusted returns.

Create professional invoices with line items, tax calculation, and print-to-PDF support.

Find the maximum loan you can afford based on your income, debts, and the 28/36 rule.

Calculate monthly payments and see a full amortization schedule with principal vs. interest breakdown.

Compare up to 3 loans side by side with visual charts

Estimate loan eligibility based on income, debts, credit score, and loan type.

Calculate how to pay off debt faster with avalanche vs snowball strategies.

Compare the total cost of buying (loan) versus leasing a car or equipment.

Calculate the real cost of a meeting based on attendee count, salaries, and duration with a live cost timer.

Generate a full mortgage amortization schedule with charts and summary

Calculate your monthly mortgage payment with taxes, insurance, PMI, and amortization.

Compare 2–3 mortgage offers side-by-side including APR and break-even analysis.

See how much time and interest you save by making extra mortgage payments.

Track assets, liabilities, and visualize your personal net worth

Convert any number into written-out currency words for check writing and legal documents.

Create polished invoices with logo, multiple tax rates, discounts, and payment details.

Build a clean one-page resume with live preview and print-to-PDF — no account needed.

Project your retirement savings with compound growth, inflation adjustment, and a 4% rule income estimate.

Calculate how long it takes to reach your savings goal with compound interest.

Generate stylised text signatures or draw freehand and download as PNG.

Filter and sort a demo dataset of 30 well-known stocks.

Estimate your US federal income tax using 2024 tax brackets.

Visualize how your income is taxed across 2024 US federal brackets with a clear chart.

Compare cost-per-unit across products to find the best shopping value.

Add or remove VAT / sales tax from any amount instantly.

Save, search, and reuse clipboard snippets with timestamps.

Save, pin, search, and re-copy text snippets during your browser session.

Calculate total working days and hours for a contract period.

Set multiple named countdown timers to any target date and watch them tick live.

Generate a custom folder structure and file naming convention for your project.

Create flashcard decks, study with flip cards, track progress, and export/import as JSON.

Track daily habits with streaks, completion rates, and a visual 30-day heatmap calendar.

Create professional invoices instantly — print or save as PDF.

Simple drag-and-drop Kanban board saved in your browser.

Turn Markdown into a full-screen slide presentation

Calculate fuel efficiency in MPG, L/100km, or km/L with cost projections.

Create, edit, and export mind maps on a zoomable canvas.

Run up to 6 independent named timers simultaneously in countdown or stopwatch mode.

Free-draw canvas with pen, shapes, undo/redo, and PNG export.

Advanced Pomodoro timer with configurable sessions, audio chimes, and daily statistics.

Focus timer using the Pomodoro Technique — 25-minute work sessions with 5-minute breaks, fully customizable.

A distraction-free note-taking app with auto-save, search, and color labels stored locally.

Create simple polls with multiple question types and visualize results.

Smart shopping list with categories, price estimates, and localStorage persistence.

Precision stopwatch with lap tracking and a countdown timer with alarm.

Browser-based stopwatch with laps and countdown timer — runs offline, no installation needed.

High-precision stopwatch with lap tracking, best/worst lap highlighting, and CSV export.

Track time across multiple tasks with start/stop timers and CSV export.

Find the best meeting time across multiple time zones with a colour-coded availability grid.

Compare two time zones, see the offset, DST status, and find the best meeting time.

Create and export visual timelines with drag-and-drop events

Create and visualize timelines for projects, history, or events.

Convert times across cities — schedule meetings across timezones effortlessly.

Interactive world map showing current time in every timezone.

A full-featured to-do list with priorities, due dates, filters, and drag-to-reorder.

Improve typing skills with progressive lessons — home row, top row, words, and custom text.

Measure your typing speed in WPM with live accuracy tracking and difficulty levels.

See the current time in multiple time zones at a glance, updated every second.

Compress JPG, PNG, and WebP images in your browser — no upload needed.

Flip and rotate images in your browser — no upload to any server.

Upload an image and visualize its RGB and luminance channel histograms with statistics.

Add text labels to an image and download as PNG.

Add text watermark to any image

Convert raster images to SVG using canvas-based posterization.

Arrange 2–6 photos into a collage and download as PNG.

Simple browser-based photo editor with filters and crop

Convert SVG code or files to PNG images with custom size and background.

Click to sample a background color and remove it with a tolerance slider — outputs a transparent PNG.

Convert any text into large ASCII art using multiple built-in fonts.

Generate stunning random abstract art in five styles with a reproducible seed.

Calculate your exact age in years, days, hours, heartbeats, breaths, and more.

Real-time audio visualizer using microphone or uploaded audio files

Find your exact age, days until next birthday, zodiac sign, birthstone, and famous birthday twins.

Set up any chess position on an interactive board, export or import FEN notation, and highlight piece moves.

Find your Chinese zodiac sign, element, and Western star sign from your birthday.

Animated countdown timer to any named event.

Generate a simple crossword puzzle from your own words and clues.

Transform text into beautiful Unicode cursive, Fraktur, circled, and other fancy styles for social media.

Roll polyhedral RPG dice using standard notation like 2d6+1d8+5.

Turn any text into large emoji art — like ASCII art but made of emojis.

Search and copy emoji by name, browse by category, with skin tone support.

Interactive Mandelbrot and Julia set fractal explorer with pan, zoom, and color palettes.

Classic hangman word guessing game with ASCII art.

Classic card-flip memory matching game with emoji themes, multiple grid sizes, and best-score tracking.

Classic guess-the-number game with hints, optimal binary search analysis, and a reverse mode where the computer guesses your number.

Discover fascinating trivia, math facts, and year history for any number.

Interactive canvas-based optical illusions gallery

Browser-based pixel art editor with flood fill, eyedropper, undo/redo, and PNG export.

Discover interesting random facts across science, history, animals, and more.

Generate random full names by gender and style — Common, Classic, Fantasy, or Sci-Fi — in one click.

Discover 200+ famous quotes filtered by category, save favorites, and copy to clipboard.

Convert Gregorian dates to Roman date notation and Julian Day Numbers.

Solve any Sudoku puzzle instantly or generate a new one to practice.

Convert typed text into a realistic handwriting-style image you can download as PNG.

Play Tic-tac-toe against an unbeatable AI with three difficulty levels.

Unscramble words against the clock or solve any anagram.

Generate printable word search puzzles from your own word list.

Animated real-time world population counter with births, deaths, and milestone tracking.

Generate cryptographically secure passwords with fine-grained control over length, character sets, and quantity.

Encode or decode text using the classic Caesar cipher shift algorithm.

Calculate SHA-1, SHA-256, and SHA-512 hashes of any file entirely in your browser.

Clean HTML and remove XSS / dangerous code

Paste a hash string and identify what algorithm it likely is.

Store and manage passwords locally in your browser — nothing sent to any server.

Measure password strength in bits of entropy and estimate crack times.

Audit a list of passwords for strength, entropy, common patterns, and get detailed security recommendations for each one.

Generate strong, memorable passphrases from a built-in word list with entropy display.

Generate TOTP 2FA codes from a Base32 secret — no app needed.

Encrypt and decrypt text with a password using AES-GCM and WebCrypto — fully client-side.

Encrypt and decrypt text with the Vigenère cipher and explore classical ciphers.

Tap to count BPM or use a precise Web Audio metronome with time signature support.

Generate binaural beats using the Web Audio API with brainwave presets, carrier frequency controls, and an oscilloscope visualizer.

Convert multiple images between PNG, JPEG, and WebP formats in bulk with quality control, optional resizing, and ZIP download — all in your browser.

Interactively crop, rotate, and flip images in the browser with preset aspect ratios.

Extract and display file info, image dimensions, and EXIF data from any image.

Extract text from any image using Tesseract.js OCR — 100% client-side.

Convert text to Morse code and hear it played back with animated symbols.

Generate music scales and chords, visualized on a piano keyboard.

Apply Instagram-style filters and adjustments to your photos, then download the result.

Resize and compress images in the browser using Canvas API — by percentage, exact dimensions, or max dimension — with batch processing and ZIP download.

Real-time musical pitch and note detector using your microphone.

Record your screen or webcam directly in the browser, then download as WebM.

Convert any text to spoken audio using your browser's built-in speech synthesis engine.

Estimate your body fat percentage using the US Navy formula with a visual gauge and category.

Calculate your TDEE, BMR, and daily macro targets for any fitness goal.

Calculate calories burned for 50+ activities based on your weight and exercise duration.

Ishihara-inspired color vision screening with 8 plates — for educational use only.

Convert cooking measurements: cups, tablespoons, ml, oz, grams, and more.

Calculate your ideal body weight using four medical formulas.

Estimate your life expectancy based on lifestyle

Build a custom FDA-style nutrition facts label by adding ingredients with full nutrient data.

Calculate your ideal bedtime or wake-up time based on 90-minute sleep cycles.

Calculate your personalized daily water intake recommendation with an hourly reminder schedule.

HIIT and circuit training timer with custom rounds, work/rest intervals, audio cues, and localStorage workout plans.

Calculate weighted GPA, final grades, and find out what score you need to reach your target grade.

Interactive International Phonetic Alphabet reference with audio, symbol copy, and 100+ common English word pronunciations.

Learn Morse code interactively with flash cards, animations, and progress tracking.

Train to read faster with RSVP — one word at a time.

Flashcard-based study tool for technical interview questions.

Improve touch typing with structured lessons and real-time WPM and accuracy tracking

Interactive unit circle with draggable point, sin/cos/tan display

Parse chemical formulas and calculate molar mass and percent composition.

Translate DNA sequences to complementary DNA, mRNA, and protein chains with codon-by-codon breakdown.

Analyze DNA sequences: complement, GC content, transcription, and translation.

Fun astronomy calculators: planetary weight, travel time, age on other planets, and more.

Interactive periodic table — click any element to explore its properties.

Solve common physics problems with step-by-step solutions.

Convert between scientific units for energy, pressure, force, power, and frequency.

Analyze IPv4/IPv6 address technical details

Inspect HTTP response headers and security header status

Calculate data transfer time based on file size and connection speed

Visual network ping simulator with latency graphs

Convert a date/time across up to 5 time zones simultaneously

Scan barcodes and QR codes from an uploaded image or live camera feed.

Convert text to and from Grade 1 Braille Unicode patterns with dot-position diagrams and a full Braille alphabet reference.

Convert text to a visual Morse code image with custom styling

Generate QR codes from text or URLs with custom colors and optional logo overlay

Look up US ZIP code details: city, state, county, coordinates, and a map.