Puzzles
Clear Spider
Play Spider solitaire locally with one, two or four suits, checked sequence moves and undo. No account or saved history.
Try same-suit sequences in Spider.
Preparing for launch
Puzzles
Open FreeCell
Play local FreeCell with explicit move feedback, checked sequence capacity, undo and a simple practice deal.
Play with every card visible in FreeCell.
Preparing for launch
Puzzles
Play locally generated classic Sudoku with a checked unique solution, manual pencil notes, undo and clearly marked answer assistance.
Try a classic number puzzle.
Learning
Algebra Steps
Solve elementary rational equations and small linear systems with exact answers, original domain restrictions and checkable steps. No account or input upload.
Preparing for launch
Text
Anagram Desk
Solve single-word anagrams and shorter words with up to two blanks using a documented US-English word list.
Preparing for launch
Planning
Balanced Group Maker
Divide a list into similar-sized groups, optionally spread manually assigned ratings, and export the complete assignment.
Preparing for launch
Print
Bingo Card Maker
Make bingo cards from your own words.
Preparing for launch
Print
Plan page order for folded booklets.
Everyday
Calendar Day Count
Calculate calendar age in years, months and days, compare dates or add days. Your dates stay on your device.
Preparing for launch
Image tools
Caption Canvas
Make a static meme from your own image or original geometric templates, with local captions and PNG export.
Preparing for launch
Print
Certificate Batch
Turn your own name list into a simple, consistent participation certificate print set.
Preparing for launch
Games
Chess Study
Play local casual chess with legal move guidance, a simple practice computer, undo and special-move exercises.
Preparing for launch
Text
Chord Shift
Transpose bracketed chord symbols in your own text while preserving the surrounding lyrics and notes.
Preparing for launch
Learning
Circle Angles
Explore degree and radian angles with a unit-circle diagram, exact standard values and explicit tangent limits.
Preparing for launch
Planning
Classroom Seat Plan
Arrange classroom seats or wedding groups with separate guest seating and private catering sheets.
Preparing for launch
Everyday
Split a bill into equal or weighted shares, account for included gratuity and see exactly where the remaining cents go.
Games
Clear Checkers
Play English checkers with a practice computer or local friend, complete legal-turn paths, undo and four learning positions.
Preparing for launch
Puzzles and games
Clear Hearts
Play Hearts against three local computer opponents with readable cards, optional suggestions and a scorecard. No account or game-data upload.
Preparing for launch
Work
Clear Hours
Add and subtract hours, minutes and seconds, or total dated intervals with explicit breaks and UTC offsets.
Preparing for launch
Puzzles and games
Clear Mahjong
Play Mahjong Solitaire with readable tile labels, three original boards, undo and guided hints. No account or saved game data.
Preparing for launch
Work
Clear Org Chart
Turn IDs and parent links into an organisation chart.
Preparing for launch
Puzzles and games
Clear Spades
Play partnership Spades with local computer players, readable cards and explained contract, Nil and bag scoring. No account or game-data upload.
Preparing for launch
Text
Clear Text Diff
Compare two text versions locally, inspect added and removed lines, and locate selected invisible Unicode characters.
Preparing for launch
Creative printables
Coloring Garden
Create original coloring pages with six themes, three detail levels and SVG or Letter/A4 print-page downloads.
Preparing for launch
Planning
Compound Path
Explore a fixed-rate compound-interest scenario with visible deposit timing, annual balances and contributions shown separately from calculated interest.
Preparing for launch
Work
CSV Compare
Compare two CSV lists using an explicit key.
Preparing for launch
Work
CSV File Renamer
Match a CSV mapping to files and save renamed copies.
Preparing for launch
Audio tools
Cue Deck
Play twelve original sound cues or local audio clips with stop controls and optional keyboard shortcuts.
Preparing for launch
Learning
Curve Desk
Plot up to three explicit real functions with adjustable windows, angle modes, adaptive sampling and value tables. No account or input upload.
Preparing for launch
Health education
Cycle Window
Approximate ovulation dates for regular cycles with an explicit calendar convention and visible limitations; no saved health history.
Preparing for launch
Everyday
Daylight Sketch
Estimate sunrise, sunset and daylight from manually entered coordinates, with a daily solar-height sketch and an explicit fixed UTC offset.
Preparing for launch
Games
Dice Desk
Roll common dice locally with visible individual results, modifiers, keep-highest or keep-lowest rules and a short session history. No account.
Preparing for launch
Health education
Due Date Desk
Understand due-date calculations and completed gestational weeks using an established date, a known regular-cycle last period or a recorded IVF transfer.
Preparing for launch
Everyday
Calculate a percentage, a change or an original value with a visible worked example.
Learning
Element Atlas
Explore all 118 elements, search names and symbols, and read abridged atomic weights with uncertainty and source notes.
Preparing for launch
Text tools
Emoji Shelf
Find and copy all 3,944 fully qualified Emoji 17.0 sequences by English name, character, code point, group and skin-tone modifier.
Preparing for launch
Everyday
Fair Draw
Draw unique names or integers, or flip coins, with browser randomness and a plain record of the chosen settings.
Preparing for launch
Print
Flashcard Print Maker
Prepare paired fronts and backs for flashcards.
Preparing for launch
Math
Fraction Steps
Calculate with fractions and mixed numbers, keeping the exact answer and each common-denominator or reciprocal step visible.
Preparing for launch
Image tools
Frame Loop
Arrange your own pictures, set frame durations and make a GIF locally without an account or image upload.
Preparing for launch
Learning
Grade Ledger
Calculate weighted or points-based grades, inspect each contribution, and work out a final-exam target without a school account.
Preparing for launch
Everyday tools
Groan Garden
Browse96 short dad-joke pairs in eight topics, search setups and punchlines, pick without repeating within a cycle and copy a chosen list. No account, joke API or automatic saved history.
Preparing for launch
Music
Guitar Voicings
Compare standard-tuning guitar chord shapes in all twelve keys, with mirrored diagrams, string notes and a local synthesized pitch reference.
Preparing for launch
Design
Hue Wheel
Create five geometric RGB color schemes with numbered wheel relationships, HEX palettes and CSS values.
Preparing for launch
Design
Image Size Tool
Resize, convert and watermark local image batches in one or three output profiles.
Preparing for launch
Work
Inch Fraction Bench
Convert millimetres and fractional inches, with the rounding difference shown explicitly.
Preparing for launch
Math
Integer Workbench
Find exact GCF and LCM together, follow Euclid’s algorithm, or check a bounded whole number for primality.
Preparing for launch
Work
Internal Label Maker
Print Code 128 labels for internal identifiers.
Preparing for launch
Business tools
Invoice Guide
Learn how to create a USD invoice with guided steps, exact line totals and an editable local draft.
Preparing for launch
Games
Letter Lantern
Play hangman with 96 selected English words, eight categories, optional clues and tab-local session counts.
Preparing for launch
Planning
Loan Schedule
Model a fixed-rate loan, inspect monthly principal and interest, and compare an optional extra payment with the original schedule.
Preparing for launch
Design
Local Sprite Sheet
Pack local PNG images into a transparent atlas with a plain JSON coordinate map.
Preparing for launch
Text
Meaning Grove
Explore English synonyms in separate meaning groups, filter by word class and save results with definitions. Local historical dictionary; no account or external dictionary API.
Preparing for launch
Health education
Measure Context
Inspect adult BMI arithmetic or a published resting-energy equation, with visible units, assumptions and limits. No account or stored history.
Preparing for launch
Print
Measured Paper
Generate grid and dot paper with a scale check.
Preparing for launch
Games
Play Minesweeper with safe first openings, three preset sizes, custom boards, flags, chording and keyboard controls.
Print
Month Notes
Make a clean monthly calendar with your own notes, a chosen week start and A4 or Letter output, without connecting a calendar account.
Preparing for launch
Learning
Moon Window
Explore approximate moon phases, illumination and upcoming primary phases for 2000–2035, with a UTC monthly calendar and local CSV export.
Preparing for launch
Learning
Morse Desk
Learn international Morse code with a clear character chart, strict text conversion, visible character breakdown and timing units. Local and no account.
Preparing for launch
Names and planning
Name Harbor
Explore historical US baby-name records from2020–2024, filter spellings and counts, compare years and keep a shortlist in this tab.
Preparing for launch
Print
Name Practice Sheets
Create simple name and word practice sheets with a model line and writing guides.
Preparing for launch
Print
Open Box Template
Make an open-top paper tray template with glue tabs, fold lines and a scale check.
Preparing for launch
Everyday
Pack Price Compare
Compare pack costs using explicit mass, volume or item quantities and see the arithmetic behind the order.
Preparing for launch
Design
Palette Contrast
Pick a solid color, read HEX, RGB and HSL values, and compare all text-contrast pairs in your palette.
Preparing for launch
Print
Paperback Cover Guide
Calculate a black-and-white paperback cover spread and save a labelled SVG planning guide.
Preparing for launch
Privacy
Password Workbench
Generate passwords locally with clear character choices, optional similar-character exclusion and no saved history.
Preparing for launch
Everyday
Run a local multi-phase timer or stopwatch, pause and repeat, and save your plan and lap times without an account.
Image tools
Photo PDF
Convert local JPEG photos into one ordered PDF with rotation, A4, Letter or image-size pages, without uploading images.
Preparing for launch
Design
Photo Sheet Maker
Arrange local photos into contact sheets.
Preparing for launch
Work
Plain Resume
Arrange your resume in chronological or skills-first formats, choose Letter or A4, and save local HTML, text and editable drafts.
Preparing for launch
Games
Pocket Crosswords
Solve twelve original English mini crosswords with crossing clues, optional checks and clearly marked word reveals.
Preparing for launch
Print
Poster Tile Print
Split a local image into a poster PDF with overlap, trim marks and an assembly map.
Preparing for launch
Print
Create static website and guest Wi-Fi codes with printable cards and signs.
Math
Quadratic Steps
Apply the quadratic formula with exact discriminant arithmetic, rational or radical roots, complex cases and separate decimal approximations.
Preparing for launch
Developer
Radix Desk
Convert binary, octal, decimal and hexadecimal values with exact fractions, visible repeats and a separate UTF-8 text mode.
Preparing for launch
Finance
Rate Compass
Compare currencies locally using dated ECB reference rates explicitly loaded from Frankfurter. Includes direction swap, decimal rounding and comparison tables.
Preparing for launch
Math
Ratio Workbench
Simplify decimal and fractional ratios or solve one missing value, with an exact answer and a cross-product check.
Preparing for launch
Everyday
Recipe Scale
Apply a serving multiplier or a same-depth baking-pan area ratio to your own ingredient list.
Preparing for launch
Text
Reference Desk
Format book, journal and webpage references in APA 7, MLA 9 or Chicago 18 author-date style, with local drafts and exports.
Preparing for launch
Math
Right Triangle Steps
Apply the Pythagorean theorem to find a missing side, with exact square arithmetic, a labeled diagram and distinct decimal approximations.
Preparing for launch
Planning
Round Robin Planner
Create pairings and check rest and deadline assumptions.
Preparing for launch
Music
Scale Atlas
Explore eleven common scale patterns with correctly spelled notes, semitone steps, a major comparison and local reference exports.
Preparing for launch
Math
Science Desk
Evaluate scientific expressions with explicit degree or radian mode, a readable calculation trace and downloadable local results.
Preparing for launch
Math
Shape Measures
Calculate areas and volumes for six defined shapes, with labelled diagrams, substituted formulas and explicit square or cubic units.
Preparing for launch
Work
Simple Team Signatures
Prepare simple text and HTML signatures for a small team using locally entered contact details.
Preparing for launch
Creative
Sketch Meadow
Draw with brushes, shapes, an eraser and keyboard coordinates. Save PNG images and editable local projects without an account or input upload.
Preparing for launch
Math
Slope Sketch
See exact slope, rise, run and a line equation, alongside a labelled sketch and an explicitly rounded angle.
Preparing for launch
Learning
Statistics Desk
Explore descriptive statistics with frequency input, sample and population spread, explicit R7 quartiles, distribution charts and arithmetic steps. No account or input upload.
Preparing for launch
Music
Steady Beat
Practise with a local metronome, accented bars and even subdivisions; export a short synthetic WAV click track.
Preparing for launch
Work
Step Flow
Convert a short series of process steps into a numbered SVG flow and a printable checklist.
Preparing for launch
Text
Subtitle Timing Check
Inspect an SRT file as text, review overlaps and shift every cue by an exact offset without uploading a video.
Preparing for launch
Text
Text Budget
Check word and character limits, estimate reading time and tidy pasted line breaks locally.
Preparing for launch
Text
Generate seven copy-and-paste Unicode styles locally and keep the original text and a plain counterpart.
Games
Three in a Row
Play tic-tac-toe locally with a computer or friend, undo turns and explore each move’s best-play outcome.
Preparing for launch
Learning
Times Table Studio
Explore multiplication facts with highlighted rows and columns, then save separate blank practice and answer charts.
Preparing for launch
Games
Play an original local snake game with three speeds, keyboard and direction buttons, fruit scoring, pause and restart. No account or saved scores.
Text tools
Typing Meadow
Practice English typing with three original passages, timed sessions, corrections, character feedback and explained speed and accuracy.
Preparing for launch
Everyday
WAV Practice Slice
Trim a short PCM WAV recording and export a slower practice copy locally.
Preparing for launch
Everyday tools
Weather Window
Find a US place and read dated NWS day, night and hourly forecasts with clear source times and separate warning-feed status.
Preparing for launch
Print
Word Search Maker
Play an original themed word search or create a printable puzzle with your own words and a checked answer sheet.
Preparing for launch
Everyday
Zone Overlap
See live world clocks with local dates and offsets, then compare shared working hours without connecting calendars.
Preparing for launch