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Inspect recent workflow runs, step outputs and errors.

Per-user encrypted secrets for workflow integrations (API keys, webhooks).

Build automation workflows with triggers, integrations and webhooks.

Generate concise, accessible alt text for an image from its URL using a vision model.

Turn long articles, transcripts or docs into a TL;DR plus key bullet points.

Rewrite any text in a new tone — formal, casual, concise or expanded — with your own AI key.

Turn a phrase into an acronym from its first letters.

Build an acrostic — a sentence whose initial letters spell your word.

Enumerate every letter permutation of a short word.

Find matching anagrams in a word list.

Transliterate Latin text into Runes, Greek, Cyrillic, hieroglyphs or cuneiform.

Full printable + control ASCII table with decimal, hex, octal and binary.

Reverse-alphabet substitution cipher (A↔Z, B↔Y…).

Steganographic 5-bit cipher invented by Francis Bacon.

Random band names by genre — indie, metal, pop, folk, electronic.

Bold the leading half of each word to create a bionic-reading HTML snippet.

Generate a .editorconfig from a few options.

Build a .gitignore for any combination of languages and stacks.

Pick a Node.js version and generate a .nvmrc.

Turn a git diff or change summary into a Conventional Commit message.

Searchable cheatsheet of ANSI / CSI terminal codes.

Quarter-wave, half-wave and full-wave antenna lengths for a target frequency.

Generate an Apache <VirtualHost> block from a small form.

Pin function reference for common Arduino, Raspberry Pi GPIO and ESP32 boards.

Render text as a multi-line ASCII art banner.

Voltage drop and ampacity table for DC circuits (12V, 24V, 48V) over a wire run.

Parse Apache / nginx access logs into structured rows.

Render an ANSI-colored terminal log as styled HTML.

Convert basic AsciiDoc into Markdown.

Look up well-known ASN.1 / X.509 object identifiers.

List fields and their types from an Avro .avsc file.

Convert between JSON and BSON (binary JSON, MongoDB's wire format).

Convert between JSON and CBOR (RFC 8949).

Convert Atlassian Confluence wiki markup to Markdown.

Convert CREATE TABLE statements into a Mermaid erDiagram.

Per-column distinct count, blanks, min / max / average, most common value.

WWI German cipher: 6×6 Polybius substitution + columnar transposition.

Compute the Adler-32 checksum used by zlib / PNG.

Encrypt or decrypt text with AES-256-GCM and a passphrase.

Encrypt or decrypt with AES-256 in CBC or (educational) ECB mode using a passphrase.

Substitution cipher y = (ax + b) mod 26 with a coprime to 26.

Generate an MD5 entry for an Apache .htdigest file.

Generate Argon2id password hashes with configurable parameters.

Encode and decode standard RFC 4648 Base32 with padding.

Encode and decode Bitcoin-style Base58.

Encode and decode Base62 (URL-safe alphanumeric).

Convert a list of old → new URLs into Apache 301 redirect rules.

Compose a CSS @font-face rule from family, weight, style and sources.

Count anchor text frequencies in pasted HTML.

Searchable list of common ARIA roles, properties and states.

Build a BIMI DNS TXT record pointing to your SVG logo and optional VMC.

Compose CAA DNS records (issue, issuewild, iodef).

Normalise any URL — force https, drop tracking params, sort query.

Good / needs improvement / poor thresholds for LCP, INP, CLS, FCP, TTFB.

Compose a Content-Security-Policy header from common directive sources.

Hash an inline script for use in a CSP script-src directive.

See benchmark best days and time windows to post on each social platform.

Generate a simple multi-platform content calendar from topics, platforms and dates.

Work out your social engagement rate by followers and by reach.

Build a tiered hashtag set from your topic keywords, capped at 30 tags.

Generate a standalone link-in-bio HTML page with tappable link buttons.

Check a caption against every platform's character limit at once.

Look up recommended image and video dimensions for every social platform.

List the classic 216 browser-safe colours, optionally filtered by a hex fragment.

Browse all 256 terminal colours with index and RGB value.

APCA L_c contrast — the WCAG 3 draft contrast algorithm.

Pick black or white text for any background by maximising WCAG contrast.

Convert sRGB to/from CIE Lab and CIE LCH.

Convert between RGB (sRGB display) and CMYK (process print).

Simulate color blindness types.

Explore complementary, analogous, triadic, tetradic and monochrome palettes.

Sort a list of hex colors by hue, lightness or saturation.

Mix two colors and see the result.

Compose translate / rotate / scale / skew into a single 3×3 matrix.

Add, subtract, dot, normalize and angle-between two 2D vectors.

Determinant, inverse, product and eigenvalues of 2×2 matrices.

Compute the eigenvalues of a 2×2 matrix (real or complex).

Compute dot and cross product of two 3D vectors.

Compute the volume and surface area of spheres, cylinders, cones, cubes, boxes, pyramids and tori.

Solve Ax = b for a 3×3 system using Gauss-Jordan elimination.

Two-proportion z-test for A/B test conversions.

Calculate age in seconds, minutes, hours, days and years.

Convert nominal annual percentage rate to effective annual yield.

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

Probability of a shared birthday in a group of n.

Render a month grid with ISO week numbers.

Approximate dates for the 24 jiéqì solar terms in a given year.

Live countdown to any future date and time.

Given a cron expression, list the next 10 fire times in UTC.

Add or subtract days, weeks, months or years from any date.

Difference between two dates in every common unit.

Parse any date input and format it with a custom pattern.

Find the overlapping window and shared days between two date ranges.

Combine a zip of image frames into a looping animated GIF with a chosen frame delay.

Turn an image into monospaced ASCII art.

List ISOBMFF boxes and dimensions inside an AVIF / HEIC file.

Decode a base64 string or data URI into a downloadable image.

Generate Blurhash and ThumbHash placeholder codes for any image.

Adjust an image's brightness, contrast and saturation (100% = unchanged).

Resize, convert and strip metadata from many images at once — download all as one ZIP.

Extract a dominant-colour palette from any image with k-means.

Remove EXIF, IPTC, XMP and ICC metadata from an image.

View EXIF tags embedded in JPEG and other images.

Estimate the longest shutter speed for stars before visible trailing appears.

Convert focal length and aperture to their full-frame equivalents.

Calculate hyperfocal distance, near/far focus limits and total depth of field.

Solve for the setting that keeps the same exposure when you change one.

Calculate horizontal, vertical and diagonal angle of view from sensor size and focal length.

Estimate flash distance from guide number, ISO, aperture and power setting.

Work out the new shutter speed after adding a neutral-density filter.

Plan a time-lapse: solve interval, frame count, clip length and storage.

Compute title-safe and action-safe rectangles, plus letterbox/pillarbox bars and the largest crop for a target aspect ratio.

Add and subtract SMPTE timecodes with correct drop-frame handling for 29.97 and 59.94 fps, and convert between timecode and frame counts.

Build common FFmpeg commands for compression, GIFs, trimming, thumbnails and audio extraction.

Calculate per-frame delay, sprite-sheet dimensions and a ready-to-use CSS steps() keyframe animation from frame count and fps.

Estimate video bitrate and final file size from resolution, fps, codec, motion and duration.

Preview YouTube title and description truncation and get a reusable description template.

Pretty-print and normalise a .bib file.

Compare two binary files byte-by-byte.

Keep selected CSV columns by name or index.

Compare two CSV files by rows or a key column.

Render any CSV as a printable, paginated PDF table.

Bulk-create calendar events from a CSV.

Extract visible text from a .docx file.

Read the ELF header: class, endianness, type, machine, entry point.

Read EPUB metadata, TOC, file list and cover image without unpacking the body.

Read title, creator and publisher metadata from EPUB files.

All registered ALPN protocol identifiers — h2, h3, http/1.1 and more.

Convert request quotas into per-second, per-minute and spacing guidance.

Decode a Basic/Bearer/Digest Authorization header.

Look up well-known autonomous system numbers — Google, Cloudflare, ISPs…

Compose a tcpdump/BPF capture filter from form fields.

Validate CAA DNS record syntax (flag, tag, value).

Compose the HTTP Cache-Control header from directives.

Break a CIDR block into network, mask, broadcast, first/last and host count.

Simulate a browser CORS preflight without making any network requests.

Convert a curl command into JS fetch, PowerShell or .NET HttpClient code.

Preview how an email subject and preheader may appear in mobile and desktop inboxes.

Score email subject lines 0-100 with heuristics for length, spam triggers, emoji and personalization.

Inline simple <style> rules into style attributes so HTML email renders consistently across clients.

Generate a table-based, inline-styled HTML email signature from simple key=value fields.

Convert HTML email markup into a readable plain-text fallback.

Connect to an IMAP mailbox — browse folders and read recent messages straight from your browser.

Build List-Unsubscribe and one-click List-Unsubscribe-Post headers from a mailto and/or URL.

Connect to a POP3 mailbox and read the most recent messages right in your browser.

Send a test email through any SMTP server — set host, port, TLS and credentials, then compose and send.

Generate EAN-13, Code 128 and UPC-A barcode payloads.

Flip 1 or many coins. Cryptographically random.

Roll RPG dice notation: 3d6, 1d20+5, 4d6kh3.

Quick shape check + local/domain/TLD breakdown.

Build a Gravatar avatar URL from an email address.

Generate syntactically valid demo IBANs and Luhn card numbers.

Cryptographically-random Fisher-Yates shuffle of any list.

Generate simple mock JSON arrays from a field schema.

Generate clearly-fake personal data: names, emails, addresses, IBAN, card numbers (test BIN).

Generate ULID, UUIDv7, Nanoid, KSUID or CUID2 identifiers in bulk.

Convert between alcohol by volume, US proof and UK (Sikes) proof.

Find IATA / ICAO codes, coordinates and timezone for ~200 major airports worldwide.

Text descriptions of each handshape in the ASL alphabet.

Convert integers to Babylonian base-60 cuneiform numerals.

Beaufort number, knots, km/h and sea-state description.

Validate SWIFT/BIC code structure.

Find the birthstone and birth flower for any month.

See which blood types can donate to and receive from a given type.

Approximate water boiling point as a function of elevation.

Translate Latin text to Grade-1 (uncontracted) Braille.

Find the point on Earth diametrically opposite to any latitude/longitude.

Initial and final bearing plus midpoint between two coordinates.

Translate a compass bearing in degrees into 16- or 32-wind cardinal direction names.

Convert wind speed to Beaufort force with sea/land descriptions.

Look up what you can see at each Bortle class (1 = pristine dark, 9 = inner city).

Build a bounding box from points or a center+radius, in every common ordering.

Find the mean (centroid) of a list of lat/lng points on the sphere.

Suggested constellations to look for tonight by season and latitude.

Compute great-circle distances between every pair of lat/lng points.

List the countries bordering any given country.

Estimate audio file size from duration and bitrate.

Convert tempo between BPM and beat duration; show subdivisions and bar length.

Look up a key's Camelot notation and harmonic-mixing neighbours.

For any target chord, list every capo fret and easier shape that produces it.

Convert between cents, semitones and frequency ratios.

Build chord voicings from a root and chord symbol.

Name the chord(s) formed by a set of notes.

Render Roman-numeral chord progressions for any major or minor key.

Major / relative-minor keys with their sharps and flats.

Convert a DAW bar.beat.sixteenth position into elapsed seconds at any BPM.

Compute present and future value of an annuity (ordinary or due).

Estimate beta, alpha and correlation of an asset against a benchmark return series.

Split a bill with tip evenly across a group and show the per-person amount.

Validate the checksum of a Bitcoin address (Base58Check / Bech32 / Bech32m).

Build a level-payment amortization schedule for a fixed-rate bond/loan.

Price a bond from yield, or approximate yield from price.

Compute NOI, cap rate and cash-on-cash return for a rental property.

Approximate US federal capital gains tax (long vs short term).

Compare living costs between major US cities using rough COLI index multipliers.

Identify the payment brand from a card number's IIN and run the Luhn check.

Record allergic reactions: allergen, symptoms, severity and treatment.

Widmark blood alcohol concentration estimate from drinks and weight.

Estimate body fat percentage from neck, waist (and hip) measurements.

Compute BSA via Mosteller, DuBois and Haycock formulas — used for chemo and drug dosing.

Track bowel movements on the Bristol stool scale for gut health.

Project caffeine in your system over time from a list of doses.

Estimate calories burned via the MET (metabolic equivalent) table.

Daily carb target for endurance carb-loading in the days before an event.

Track nightly CPAP usage hours, AHI, pressure and mask leak.

Compute watts per kilogram and categorise via Coggan-style tables.

Slide tiles together to reach the elusive 2048 tile.

Roll any tabletop dice expression — 4d6kh3, 2d20+5, 1d100, exploding dice.

Sink the randomly-placed fleet on a 10×10 grid.

Basic-strategy lookup chart for blackjack (S17, no surrender).

Check whether a word can be formed on a Boggle board via King-style adjacency.

Score a ten-pin bowling game from standard X / - roll notation.

Probability of drawing N of M target cards from a deck of any size.

Two-dice roll probabilities (2–12) for Catan resource production.

Compute expected score and rating change after a chess game.

Render a chess board from a FEN string.

Generate printable Bingo cards from any list of items.

Classic 75-ball bingo caller with already-called grid.

Pick a birthday-party theme from a curated bank.

Generate corporate-speak Bingo cards for your next pointless meeting.

Random charades prompts across actions, animals, movies, professions and phrases.

Generate a rotating week-by-week chore schedule.

Random sincere compliments for friends, kids and team members.

Open-ended questions to spark conversation at a gathering.

Pick a date-night idea you haven't done yet.

Spin up a quick party drinking-game rule (drink responsibly!).

Generate a self-contained GDPR-style cookie consent banner (HTML, CSS, vanilla JS) with accept, reject, and save-preferences actions.

Generate a website cookie policy covering necessary, analytics, auth and advertising cookies.

Generate a DMCA takedown notice for copied content from owner and URL details.

Generate a formal GDPR Article 15 subject access request letter from your details.

Build a mutual or one-way non-disclosure agreement template from simple fields.

Generate a structured website privacy policy with optional GDPR and CCPA sections from simple key=value settings.

Build a Terms of Service or EULA with conditional clauses for liability, arbitration, refunds, user content, and termination.

Generate a tailored cover letter from your background and a job description.

Compare your resume against a job description to score keyword match and flag format issues.

Summarize job applications, next actions, due dates and stale follow-ups from a simple list.

Generate LinkedIn headline ideas, an About starter and keyword gaps for a target role.

Rewrite weak resume bullets into achievement-focused Action + Scope + Metric bullets.

Turn rough interview notes into a concise STAR-format behavioral answer.

Keep agenda, notes and action items for recurring 1:1s per person.

Rolling notes per direct report for performance reviews.

Track business assets, serial numbers and warranties.

Manage clients used by the invoice generator.

Lightweight contacts list with an interaction timeline.

Track vendor and customer contracts coming up for renewal.

Collect NPS scores and verbatim feedback; track promoters vs detractors.

Index work documents with title, type and notes.

Keep a private directory of employees with role and status.

Capture, vote on and triage product feature requests.

Track anxiety episodes, severity, triggers and coping strategies.

Encrypted store for service-scoped API keys.

Never miss a birthday or anniversary again.

Capture life goals and tick them off as you go.

Track caffeine intake by source and milligrams.

Track menstrual cycles by start and end date.

Record dreams while they're fresh, with tags.

Stash gift ideas for people you care about, with due dates.

Three things you're grateful for, every day.

Track daily habits with streaks and completion history.

Track contributions and employer match across retirement accounts.

Log passive income streams: affiliate, royalty, dividend and interest.

Track recurring bills, due dates and paid/unpaid status.

Set monthly spending budgets per category.

Allocate money to spending envelopes and track what's left in each.

Track charitable donations with tax-deductible flag.

Track crypto holdings by symbol, wallet, quantity and cost basis.

Track debts with balance, rate and minimum payment.

Track ESPP offering periods with lookback discount and realized gain.

Quick expense logger with optional category and notes.

Log systolic, diastolic and pulse over time.

Track waist, chest, hips, arms and thighs over time.

Log meals with calories, protein, fat and carbs.

Log blood glucose readings with context.

Track injuries by body part and recovery status.

Log lab markers over time with reference range bands.

Track personal records per exercise.

Log runs, bikes, walks and swims with distance and duration.

Daily mobility check-in with streak count.

Record vaccinations with provider, lot and next-due date.

Set a guiding theme, word and goals for each year.

Save tagged URL bookmarks with a per-tag filter.

Reusable checklists for routine processes.

Capture decisions with date and reasoning for retros.

Note distractions that pull you off task so you can spot patterns.

Sort tasks into Do / Schedule / Delegate / Delete quadrants.

Track outbound emails awaiting replies and when to nudge.

Capture ideas; revisit and progress them later.

Save meeting notes with attendees and action items.

Track quarterly objectives with key results and progress.

Track your home bar stock and save cocktail recipes in one place.

Recommended smoker temperature, internal temp and time-per-pound by cut.

Aging windows by cheese style and salt cure times for charcuterie.

Track recurring cleaning tasks and when they were last done.

Find classic cocktails you can make from a list of available spirits and modifiers.

Calculate coffee + water amounts for espresso, pour-over, French press and AeroPress.

Quick volume / sheet / yardage calculator for common building materials.

Curtain panel width and length needed by window size, hang style and fullness.

Searchable tap-drill, clearance and pilot-hole sizes for common screws.

Track utility bills with usage and cost per billing period.

Compare your carry-on dimensions to airline cabin-bag limits.

Tick off countries, US states or national parks as you visit them.

Driving side and typical urban/rural/highway speed limits per country.

Track each flight: route, airline, miles, duration and seat.

Estimate miles earned per dollar or per mile flown for revenue-based vs distance-based programs.

Track hotel stays with cost, dates, confirmation and rating.

Plan a trip day by day: activities, times, locations and booking refs.

Estimate jet lag severity and recovery days from time-zone change and direction.

Compare your layover to typical Minimum Connection Time and identify risky transfers.

Keep airline, hotel and rental car loyalty numbers in one place.

Track chess-puzzle sessions: solved vs attempted and rating themes.

Track coding problems solved with platform, language and time.

Capture study notes in Cornell or Zettelkasten format with cue, body and summary.

Track modules across online courses.

Keep a daily reading streak for scripture or other religious texts.

Save flashcard decks and review with simple Leitner boxes.

Log courses with credits and letter grades and see your weighted cumulative GPA.

Track geography and capital-city quiz scores and streaks.

Log arithmetic / times-table drills to track speed and accuracy gains.

Log music-theory drills: intervals, scales, chord ID and ear training.

Log deep-sky and planetary observations with magnitude and seeing.

Rate and review beers with style, brewery, ABV and tasting notes.

Log bird sightings by date, species and location.

Catalogue your board games with play count and rating.

Track books you own, want and have read with ratings.

Track coffee, tea or homebrew recipes and outcomes.

Inventory cameras and lenses with mount, serial and value.

Log climbs and boulder problems with grade and attempts.

Track comics by title, issue, grade and value.

Log scuba dives with max depth, bottom time and conditions.

Track tank temperature, pH, ammonia/nitrite/nitrate and water changes.

Look up common dog breeds by typical weight, height and life expectancy.

Generate a print-ready text block for missing-pet flyers: name, last seen, contact and reward.

Convert pet age to human-equivalent years using breed/size-aware curves (not naïve ×7).

Daily caloric needs for dogs and cats by weight, life stage and activity.

Save each pet's daily food, calorie target and treat calorie budget.

Estimate due date and key milestones for dogs, cats and rabbits from a mating date.

Track grooming visits and next-due dates.

Track pet insurance policies: premium, deductible, reimbursement % and renewal.

Track ongoing pet medications: drug, dose, frequency and start/end dates.

Log accidents with severity, other party, police report and claim numbers.

Track each car battery: brand, group size, CCA, warranty and install date.

Record brake pad/rotor/fluid service with odometer and cost.

Calculate concentrate + water litres for a target antifreeze percentage.

Track at-home repairs: job, hours, parts cost and odometer.

Track license, ID and travel-document expiry per driver in your household.

Estimate the cost to charge an EV between two states of charge.

Estimate real-world EV range as a function of outside temperature and cabin heating.

Track fill-ups with odometer, liters and cost.

Find road speed from engine RPM, gearing, final drive and tire size.

Inspect hives: queen status, brood/honey frames, temperament and harvests.

Find good neighbors and bad neighbors for common vegetables and herbs.

Blend compost materials and check the carbon-to-nitrogen ratio against the ideal.

Log compost adds, turns, harvests and pile temperature.

Record which crop family went in each bed each year to plan rotation.

Look up days to harvest for common crops from seed or transplant.

Approximate last spring frost, first fall frost and frost-free days for a USDA zone.

Save dimensions and a layout sketch for each garden bed.

Capture daily garden notes by bed and weather.

Convert PPFD and photoperiod into Daily Light Integral for your plants.