Countdown Timer
Set a countdown, get a beep. Nothing else.
Party Night
Every decision-maker in one place.
Time
Classroom
Decide
Calculators
Money
Seller
Text
Image
Daily
Color & Design
Oddities
Collections
Party Night
Every decision-maker in one place.
5 / 5 tools ready
Deep Work
Timers, notes, and breathing room.
3 / 4 tools ready
The Classroom Pack
Everything for the front of the room.
9 / 9 tools ready
Seller Starter Kit
Small tools that add up to a storefront.
6 / 6 tools ready
Black Cartridges
The strange, contemplative corner.
5 / 5 tools ready
All tools
- Age CalculatorExact age from a date of birth, and days until the next candle.
- Alphabetize LinesSort lines A–Z, Z–A, by length, or shuffle.
- Bill SplitterAdd items, assign people, see who owes what.
- Bingo CallerCalls B1 to O75, remembers what's out. Auto-call or draw by hand.
- Box Breathing4-4-4-4 breathing with an expanding square. Adjust the pace.
- Case ConverterUPPER, lower, Title, Sentence, aLtErNaTiNg — one tap, then copy.
- Character CounterLive characters against X, Instagram, LinkedIn, YouTube, and meta limits.
- Classroom TimerA shrinking disc that changes color as time runs out. Visible from the back.
- Coin FlipFlip a coin. Heads or tails, with a running tally.
- Color PickerPick a color, copy hex, rgb, or hsl. Save swatches for later.
- Compound InterestWatch a starting balance and monthly contributions grow over time.
- Compress ImageSlide the quality, watch the size drop, download.
- Contrast CheckerForeground on background. WCAG AA and AAA at a glance.
- Convert ImagePNG, JPG, or WebP — pick a format and download.
- Countdown TimerSet a countdown, get a beep. Nothing else.
- Course RevenueAudience × conversion × price. Slide the dials, watch it move.
- Crop ImageDrag the box, pick a ratio, download the crop.
- Deduplicate LinesRemove duplicate lines. See how many went.
- Dice RollerRoll up to ten dice — d4 through d20 — with a running total.
- Discount CalculatorTake a percent off, stack a second, add tax. See what you save.
- Draw StrawsOne short straw hidden among the rest. Pass and reveal.
- Engagement RateFollowers, likes, comments in — engagement rate and a rating out.
- Fancy TextTurn plain text into bold, italic, script, monospace, small caps.
- Favicon MakerOne image in. 16, 32, 180, and 512 PNGs out.
- Final Grade CalculatorWhat you need on the final to hit your target grade.
- Find & ReplaceSwap every match. Case-sensitive when you need it.
- Fuel Cost CalculatorDistance, efficiency, price — what the trip costs, split if you like.
- GPA CalculatorAdd courses, get your GPA on a 4.0 scale, weighted or not.
- Gradient MakerStops and angle in, CSS gradient out. Copy and paste.
- Habit TrackerAdd habits, tap days, build streaks. This month at a glance.
- Image ⇄ Base64Encode an image to base64, or paste base64 back to an image.
- Image ColorsDrop an image, get its dominant colors. Copy any hex.
- Life in WeeksNinety years of your life, one dot per week. Download it.
- List ShufflerPaste a list, get it shuffled and numbered. Reshuffle as often as you like.
- Loan CalculatorMonthly payment, total interest, and a full amortization table.
- Lorem IpsumPlaceholder paragraphs or words, ready to paste.
- Magic 8-BallAsk a yes-or-no question. The ball answers.
- Margin CalculatorCost and price ⇄ margin. Markup shown alongside so you don't mix them up.
- Noise MeterLive room volume, entirely on this device. Nothing is recorded or sent.
- Palette GeneratorFive random colors. Lock what you love, reroll the rest.
- Percentage CalculatorWhat is X% of Y, X as a % of Y, and % change — all in one.
- Product PricingPrice to charge given cost, platform fee, and target margin.
- PX ⇄ REMConvert PX to REM and back, with an editable base size.
- QR Code GeneratorText or URL to QR. Change color, resize, download as PNG.
- Quick NotesOne autosaving scratchpad. Copy all, clear, done.
- Random Name PickerPaste names, tap Pick, get a winner. Save lists for later.
- Random NumberPick numbers between any two, with or without repeats.
- Reaction TimeClick when it turns green. Five rounds, average, personal best.
- Resize ImagePick pixels or a percent, keep the ratio, download.
- ROAS CalculatorReturn on ad spend, with break-even ROAS when you add margin.
- Rock Paper ScissorsPlay against the machine. Best of running score.
- Salary ClockWatch your salary tick up in real time. Since you opened this tab.
- Salary ConverterHourly, monthly, annual — all synced. Tweak hours and weeks.
- Sales Tax CalculatorAdd tax to a price, or work backward from the total.
- Savings GoalHow much a month to hit a number by a date.
- ScoreboardBig buttons, big numbers. Track two to six teams from the back row.
- Sleep CalculatorBedtimes and wake times by 90-minute sleep cycles.
- Spinner WheelSpin a wheel of choices. Winner announced, wheel remembered.
- Tally CounterName your counters, tap to count. Everything saves as you go.
- Team MakerPaste names, split into fair teams. Reshuffle until it feels right.
- Text CleanerStrip double spaces, extra breaks, tabs, and invisible junk.
- Tip CalculatorBill, tip, split. Per-person total in one glance.
- To-Do ListAdd, check, delete. Clear completed. Nothing to sign up for.
- Traffic LightFullscreen red, amber, green. Tap or press 1, 2, 3 to change.
- Typing TestSixty seconds of common words. WPM, accuracy, personal best.
- Unit ConverterLength, weight, temperature, volume, speed, area — synced.
- UTM BuilderTag a URL with source, medium, campaign. Copy and go.
- Water TrackerOne-tap cups toward a daily goal. Streak of days met.
- Word CounterLive words, characters, sentences, reading and speaking time.
- Yes or NoOne giant button. A pause. Then yes or no.