Random Tools

Generate a full shuffled ordering of all 52 playing cards, or several decks combined.

Flip one or many virtual coins and see heads/tails results plus a running tally.

Roll any number of dice with any number of sides and see each result plus the total.

Shuffle the letters of any text into a random order, in your browser.

Split text into paragraphs on blank lines and shuffle their order.

Render a short sequence of random-frequency oscillator tones and download it as a WAV file.

Generate random bytes and base64-encode them with the browser's real btoa() — both input and output shown.

Generate a random integer shown in base-2, with a configurable bit length.

Generate a random cartoon bird SVG with a random body shape, wing tilt, feather color, and beak color.

Generate a string of N random bits, each independently 0 or 1.

Generate a random-noise bitmap image at any size, in full color or monochrome, and download it as a PNG.

Generate a batch of random true/false boolean values, each with an independent 50/50 chance.

Generate a random document and hand-encode it as real BSON bytes, shown as a hex dump alongside a JSON preview.

Generate N random bytes (0-255), shown as hex pairs, a decimal array, or comma-separated decimal values.

Draw one random card (rank and suit) from a standard 52-card deck.

Randomly uppercase or lowercase each letter in your text independently.

Generate a random cartoon cat face SVG with a random ear shape, fur color/pattern, eye color, and whiskers.

Pick a random name for a cat from a built-in list of common cat names.

Play out a random chess game from the standard opening position using real piece-movement rules, N plies at a time.

Generate a random, sanity-checked arrangement of chess pieces as FEN notation and a visual board.

Generate a random circle with random radius, position, and fill/stroke color, as an SVG.

Generate random real-world city names spanning every inhabited continent.

Generate a random color and see its hex, RGB, and HSL values together with a visual swatch — constrain to pastel, vivid, or dark.

Generate pairs of positive integers (a, b) with gcd(a, b) = 1, within a configurable range.

Generate random real country names from a curated list of about 160 countries.

Generate a random crossword grid from a small built-in word list using simple greedy intersection placement, with a structural clue list.

Generate a random CSV file with a chosen number of rows and typed columns (name, number, boolean, date).

Generate random cylindrical (r, θ, z) coordinate triples, with the angle in degrees or radians.

Generate a random date within a configurable min/max range, in ISO or locale-style format.

Generate random base-10 decimal numbers with a configurable integer digit count and decimal place count.

Generate a list of random single digits from 0 to 9, one per line.

Generate pairs of two independent random digits (0-9), one pair per line.

Pick one random digit from a pool you supply, or the default 0-9 range.

Generate a random cartoon dog face SVG with random floppy or erect ears, fur color, and snout shape.

Pick a random name for a dog from a built-in list of common dog names.

Play out N random non-capturing checkers moves from the standard setup and see the move list plus final board.

Generate a random arrangement of checkers pieces on the dark squares of an 8x8 board, with a configurable piece count.

Generate random email addresses at RFC 2606 reserved example domains, safe for test data.

Generate random Unicode pictographic emoji from a built-in list, like 😀🎉🚀.

Generate random text-based emoticons and kaomoji from a built-in list, like :) and (╯°□°)╯︵ ┻━┻.

Generate a random linear or quadratic equation with one unknown, plus its solved value(s) of x.

Generate random even integers within a min/max range, one or many at a time.

Generate a random .xlsx workbook with a header row and randomly typed text, number, and date columns.

Generate an abstract, geometric cartoon avatar face with a random head shape, eye style/color, nose, mouth, and hair.

Generate a random flower SVG with a configurable petal count, random petal color/shape, a center, and a stem.

Generate random fractions a/b with configurable numerator/denominator bounds, optionally reduced to lowest terms.

Generate a random mathematical function definition, like "f(x) = 2x^2 - 3x + 1".

Generate random (latitude, longitude) pairs within valid Earth bounds, with configurable precision.

Simulate N random alternating Go moves with a simplified single-stone capture check, on a configurable board size.

Generate a random arrangement of black and white Go stones on a configurable 9x9, 13x13, or 19x19 board.

Generate Microsoft-style GUIDs: uppercase hex, hyphenated, wrapped in curly braces by default.

Generate a random integer shown in base-16, with configurable digit length and letter case.

Generate a small, complete random HTML page with a heading, paragraphs, a list, and a link.

Generate random <table> markup with a chosen number of rows and columns of random cell content.

Procedurally generate a brand-new abstract image every time, with a random gradient background and scattered shapes.

Pick one at random from a small fixed set of 10 built-in generative SVG patterns, no images are fetched from the internet.

Generate a single random whole number between a minimum and maximum you choose.

Generate a batch of random whole numbers within a min/max range, one per line.

Generate random IPv4 or IPv6 addresses, restricted to any, private, or public-looking ranges.

Generate random ISBN-10 and/or ISBN-13 numbers with a correctly computed check digit.

Paste a list, one item per line, and pick one at random — with optional weights and no-repeat mode.

Generate a random nested JSON object with configurable depth, key count, and array length.

Generate a layered SVG landscape with a sky gradient, a sun or moon, a jagged hill silhouette, and a few trees.

Generate a random LaTeX document skeleton with a title, a math equation, and an itemized list.

Generate random 'Lenny face' style kaomoji, like ( ͡° ͜ʖ ͡°), from a built-in list.

Generate a batch of random letters with control over case and vowels vs. consonants.

Generate one or more random line segments with random endpoints, color, and width, as an SVG.

Generate a random list of N items, sampled without repeats or generated with repeats allowed.

Generate a full fake address combining a random street, city, and country.

Generate random 6-byte MAC addresses with a colon or hyphen separator and correct locally-administered bits.

Build a random arithmetic expression from +, -, *, / and parentheses, with its evaluated result.

Generate a random m x n matrix of numbers within a configurable range, as an aligned text grid.

Generate random input bytes and compute their real MD5 digest — both shown, clearly labeled.

Generate random letters or words and see both the source text and its Morse code encoding.

Generate random human first + last name combinations from built-in name lists, in either name order.

Generate random numbers between a min and max, as whole integers or decimals with configurable precision, one or many at a time.

Generate N pairs of random integers (a, b) within a min/max range — useful for coordinates or paired test data.

Generate a random integer shown in base-8, with a configurable digit length.

Generate random odd integers within a min/max range, one or many at a time.

Generate random paragraphs made of several grammatically plausible sentences.

Generate clearly-fake, non-dialable phone numbers using officially reserved fictional ranges.

Generate one or many random numeric PIN codes, 4-8 digits long, using a cryptographically secure random source.

Generate a random gradient-shaded planet SVG with an optional ring system, craters, and cloud bands.

Generate fictional sci-fi-style planet names by combining random syllables.

Generate random 2D (x, y) points within a configurable bounding box.

Generate random polar (r, θ) coordinate pairs, with the angle in degrees or radians.

Generate a random prime number within a min/max range, using trial division and Miller-Rabin.

Generate a random, syntactically valid regex pattern composed from character classes, quantifiers, and groups.

Generate grammatically plausible random sentences built from subject/verb/object templates.

Generate random input bytes and compute their real SHA-1 digest — both shown, clearly labeled.

Generate random input bytes and compute their real SHA-256 (SHA-2 family) digest — both shown, clearly labeled.

Generate a random polygon (3-10 sides) with a random size, rotation, and fill color as an SVG.

Generate a random square with random size, position, rotation, and fill/stroke color, as an SVG.

Generate random fake street names with house numbers, like '482 Maple Avenue'.

Generate a random, genuinely solvable 9x9 Sudoku puzzle with easy/medium/hard difficulty and a one-click solution reveal.

Generate a random 3D surface formula z = f(x, y), combining sin/cos/polynomial terms.

Generate a random time of day in 12-hour or 24-hour format, with optional seconds.

Generate a random TOML document with nested tables and key/value pairs, configurable depth and breadth.

Draw a random stylized treasure map with a blob island coastline, a dotted route, an X mark, and a compass rose.

Generate a randomized branching tree with configurable branch count and depth, rendered as SVG lines and leaf blobs.

Generate random tab-separated data with a chosen number of rows and typed columns (name, number, boolean, date).

Generate random text drawing from Greek, Cyrillic, symbol, box-drawing, and emoji ranges.

Generate random text (including spaces, symbols, and unicode) and URL-encode it with the real encodeURIComponent().

Generate plausible-looking URLs from random scheme, subdomain, path, and query combinations.

Assemble realistic-looking browser User-Agent strings for Chrome, Firefox, Safari, and Edge.

Generate usernames by combining a random adjective and noun from built-in word lists, with an optional number suffix.

Generate random UTF-16 text including surrogate-pair emoji, with a code-unit breakdown.

Generate random text and see its UTF-32 code-point breakdown, one 32-bit value per character.

Generate random multi-byte UTF-8 text and see its per-character byte breakdown.

Generate random n-dimensional vectors with a configurable dimension count and component range.

Animate random moving, colored shapes on a canvas and capture a few seconds of it as a downloadable WebM video.

Enter your options and spin a wheel to pick one at random, with a spinning reveal animation.

Generate a random .docx Word document with a heading, procedurally generated paragraphs, and a list.

Generate a list of random English words drawn from a varied built-in dictionary.

Draw an abstract SVG 'world map' with a lat/lng-style graticule grid and random blob-shaped landmasses.

Generate a random nested XML document with a mix of child elements and attributes.

Generate random 3D (x, y, z) coordinate triples within a configurable numeric range.

Enter a regex pattern and generate random strings that actually match it.

Split text into sentences and shuffle their order, keeping each sentence intact.

Shuffle the column order of delimited text (CSV/TSV) the same way across every row.

Shuffle the order of newline-separated lines in a block of text.

Shuffle the order of whitespace-separated words in a block of text.