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

See each byte of your text as an 8-bit grid, flip individual bits, decode byte lists back to text, and run AND, OR, XOR, NOT and shift operations on two bytes.

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.

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

Calculate the exact age difference between two people

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.

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

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.

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.

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.

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.

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 world currencies using a stored snapshot of approximate January 2025 rates — offline, no live data.

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

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

Save, search, and reuse clipboard snippets with timestamps.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

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.

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

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

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