KĀRYAa working studio

Ideas · In Progress

A working studio thinks out loud.

Seventy-nine ideas on the bench — some shipping, some still sketches. Hover or tap any line to see what it is and who it's for.


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Nº 01–10

The Studio

Meta-projects and infrastructure — the studio thinking out loud.

Nº 11–26

Micro-utilities

Small, private, single-purpose tools — each ships as a live page.

  1. Nº 11 A medicine reminder elders can actually use Giant type, one-tap doses, and the day's medicines read aloud — offline. ProductLiveOpen ↗
  2. Nº 12 A repair-first guide for everyday things The steps worth trying before you bin it — and when to recycle. ProductLiveOpen ↗
  3. Nº 13 A noise meter that logs a room over time Chart how loud a space really is, using just the phone mic. ToolingLiveOpen ↗
  4. Nº 14 Any instructions, read aloud one step at a time Paste a list; get a large-print, spoken, hands-free walkthrough. ProductLiveOpen ↗
  5. Nº 15 Split a shared house's bills in the fewest payments Settle who owes whom in the fewest transfers — no accounts. ProductLiveOpen ↗
  6. Nº 16 Plain-English answers to cryptic error messages Paste an error; get the meaning, cause and fix — nothing leaves the page. ToolingLiveOpen ↗
  7. Nº 17 Stock-keeping for a corner shop, by photo Snap a product, set a reorder level, see what's running low at a glance. ProductLiveOpen ↗
  8. Nº 18 A whole mock API from a single example Paste one response; get variants plus ready-to-run mock servers. ToolingLiveOpen ↗
  9. Nº 19 A digital clipboard that works with no signal Build a form, fill it offline, export later — no server, no account. ProductLiveOpen ↗
  10. Nº 20 Type an Indian script by how it sounds Write in Latin letters, watch it become Devanagari or Kannada, live. ToolingLiveOpen ↗
  11. Nº 21 A fresh code lesson every morning One concept a day — a real snippet, a plain walkthrough, a tiny challenge. EducationLiveOpen ↗
  12. Nº 22 Understand the economy, one concept a day A daily macro idea with a model you can actually play with. EducationLiveOpen ↗
  13. Nº 23 Interview yourself into a great README Answer a few questions; watch a clean README build itself live. ToolingLiveOpen ↗
  14. Nº 24 Turn code into a guided walkthrough Paste files; get an ordered tour to annotate and export as Markdown. ToolingLiveOpen ↗
  15. Nº 25 A booking day-book for a business of one Set services and hours; get a clean, no-overlap slot grid, on-device. ProductLiveOpen ↗
  16. Nº 26 Know the real cheapest, by unit price Enter size and price; it flags the true best value by unit. ProductLiveOpen ↗
Nº 27–53

For India's small business

Working software for the shop, the society and the trade.

  1. Nº 27 Which franchise actually fits you A short quiz becomes a scored shortlist of franchises that fit. ProductShippingOpen ↗
  2. Nº 28 Answer every review, in your voice Draft warm replies to every review in English or Hinglish. ProductShippingOpen ↗
  3. Nº 29 Know exactly what the law expects of your shop Eight questions become your registrations, filings and deadlines. ProductShippingOpen ↗
  4. Nº 30 A real website from one form, in a minute Fill one form; download a complete one-page site in a single file. ProductShippingOpen ↗
  5. Nº 31 The tuition centre's whole day in one ledger Batches, attendance and fees that compute their own monthly dues. ProductShippingOpen ↗
  6. Nº 32 Rent that collects itself Rent raised on each due day, tenants nudged, receipts sent automatically. ProductShippingOpen ↗
  7. Nº 33 The society's books, minus the shoebox Maintenance raised per flat, defaulters surfaced, an AGM-ready statement. ProductShippingOpen ↗
  8. Nº 34 Never miss a vehicle renewal again Every vehicle's insurance, PUC and permit on one ranked calendar. ProductShippingOpen ↗
  9. Nº 35 Your chair, always booked Rebook clients before they drift; count down prepaid packages. ProductShippingOpen ↗
  10. Nº 36 Kill the gym's silent churn Chase renewals and win-backs before members quietly drift away. ProductShippingOpen ↗
  11. Nº 37 Every site's P&L, in your pocket Track labour, material and advances per site against the budget. ProductShippingOpen ↗
  12. Nº 38 Chase the quote, win the job Send a tidy quote, track it to won, auto-nudge every cold one. ProductShippingOpen ↗
  13. Nº 39 Daily delivery, month-end sorted A per-customer daily ledger that tallies its own monthly bill. ProductShippingOpen ↗
  14. Nº 40 WhatsApp order to bill, in one tap Paste the customer's message; it becomes an itemised bill at your rates. ProductShippingOpen ↗
  15. Nº 41 No double-booked dates, ever Clash-proof event dates, advances tracked, reminders before dues. ProductShippingOpen ↗
  16. Nº 42 Piece-rate pay, done right Log production per worker, net off advances, end the payout arguments. ProductShippingOpen ↗
  17. Nº 43 Cover the beat, collect the dues Today's route, orders at each visit, outstanding you can't fudge. ProductShippingOpen ↗
  18. Nº 44 Stitching orders that hit the promised date Save each customer's measurements once, then track every order to its trial and delivery. ProductShippingOpen ↗
  19. Nº 45 Every shoot's payments and album, on track Split each booking into milestone payments and chase album deadlines automatically. ProductShippingOpen ↗
  20. Nº 46 Every repair, tracked to ready-for-pickup Move each job from intake to ready, logging parts and warranty along the way. ProductShippingOpen ↗
  21. Nº 47 The checkup that reminds itself Schedule cleanings, refills and vaccinations; the recall fires itself on WhatsApp. ProductShippingOpen ↗
  22. Nº 48 The day's trips, assigned and settled Book trips, assign a driver and vehicle, and track advance and balance on one board. ProductShippingOpen ↗
  23. Nº 49 The right buyer for every listing Score every buyer against every listing, then schedule visits and chase follow-ups. ProductShippingOpen ↗
  24. Nº 50 Quote by the plate, shop by the list Price an event by the plate; the ingredient shopping list writes itself from the menu. ProductShippingOpen ↗
  25. Nº 51 The mandi's patti, tallied for you Record each lot, auto-split commission and mandi fee, and tally the daily patti. ProductShippingOpen ↗
  26. Nº 52 Waste-collection dues that collect themselves Raise each household's monthly fee, nudge on WhatsApp, and issue numbered receipts. ProductShippingOpen ↗
  27. Nº 53 Scrap weighed, paid and stocked Buy scrap by weight and rate, print a payout slip, and track stock and resale margin. ProductShippingOpen ↗
Nº 54–58

SaaS & AI tools

Productised bets — self-contained SaaS and developer tools, hosted and measured.

  1. Nº 54 Walk into every meeting fully prepped Reads your calendar, docs and email into a one-page brief before every meeting. ProductLiveOpen ↗
  2. Nº 55 A landing page live this afternoon Spin up a fast, SEO-perfect landing page with a waitlist and analytics in minutes. ToolingLiveOpen ↗
  3. Nº 56 A brutally honest read on your idea Scores a startup idea on market, moat and timing — with cited sources. ProductLiveOpen ↗
  4. Nº 57 Catch the silent quality drop Trace every model call and catch regressions when a prompt changes. ResearchLiveOpen ↗
  5. Nº 58 Cut the LLM bill, not the quality Track LLM spend per feature, cache repeats and flag cheaper-model wins. ToolingLiveOpen ↗
Nº 59–68

Everyday, private by default

Money, health and shop-floor tools that run entirely in your browser — the data never leaves the device.

  1. Nº 59 See what a loan prepayment really does Enter a loan and a prepayment; watch the schedule, interest saved and closure date redraw. ProductLiveOpen ↗
  2. Nº 60 A private mental-health check-in that scores itself Take the standard PHQ-9 and GAD-7, get the published score and band — on device. ProductLiveOpen ↗
  3. Nº 61 Rebuild the jeweller's quote at the counter Split a gold quote into fixed metal value and the making and wastage you can haggle. ProductLiveOpen ↗
  4. Nº 62 Watch SQL joins actually pair up See rows match — duplicates, NULLs and all — through a real join evaluator. EducationLiveOpen ↗
  5. Nº 63 A free talking board for people who can't speak Tap big tiles to speak aloud, build sentences, and let carers customise it — offline. ProductLiveOpen ↗
  6. Nº 64 Every baby vaccine, dated from the birthday Enter a date of birth; get the IAP and government schedule as real, tickable dates. ProductLiveOpen ↗
  7. Nº 65 A sleep diary that does the arithmetic Log the night; it computes sleep-onset, total sleep and efficiency, and prints the grid. ProductLiveOpen ↗
  8. Nº 66 Count the drawer, catch the shortage Tally cash by denomination, reconcile against expected, and log the day's close. ProductLiveOpen ↗
  9. Nº 67 Your CTC, decoded to real take-home Turn a CTC into a monthly in-hand breakdown with the rule behind every deduction. ProductLiveOpen ↗
  10. Nº 68 Know exactly when you can donate blood again Cited eligibility rules and your next-donation date, with a private donation logbook. ProductLiveOpen ↗
Nº 69–78

Cited to the source, private by default

Health, money, the trade counter and the terminal — every figure traced to a named source, every byte kept in your browser.

  1. Nº 69 Home vitals, turned into one clinic-ready sheet Log BP, sugar and weight; get a printable trend sheet with the guideline bands marked. ProductLiveOpen ↗
  2. Nº 70 The true cost of a kilometre Log each full-tank fill; get real mileage and honest rupees per kilometre. ProductLiveOpen ↗
  3. Nº 71 Your gold-loan ceiling, before the branch quotes it Enter weight and purity; see your loan ceiling under the RBI 2025 rules. ProductLiveOpen ↗
  4. Nº 72 chmod, in every direction Convert permissions between octal, symbolic, a checkbox grid and pasted ls -l, with cited recipes. ToolingLiveOpen ↗
  5. Nº 73 What the study years actually cost Model an education loan three ways through the moratorium and compare the real cost. ProductLiveOpen ↗
  6. Nº 74 One market day, reconciled in two counts Pack out in the morning, count back at night; sold, takings and variance fall out. ProductLiveOpen ↗
  7. Nº 75 Watch the JavaScript event loop, proven Step real snippets through the call stack and the micro- and macro-task queues — every order proven in Node. EducationLiveOpen ↗
  8. Nº 76 Every scan and visit, dated from your due date Turn an LMP or due date into dated, cited scan windows and ANC visits you can tick off. ProductLiveOpen ↗
  9. Nº 77 Measure the room, get the shopping list Room measurements become paint, primer, putty and tiles in real pack sizes — every number cited. ProductLiveOpen ↗
  10. Nº 78 Why your string length is wrong Break any text into codepoints and bytes, diff its normal forms, and reveal invisible characters. ToolingLiveOpen ↗
Nº 79

Developer & spec tooling

Tools for the people who build the APIs — starting with a spec converter that runs entirely in your browser.

  1. Nº 79 Move an API spec between any two formats Paste OpenAPI, Postman, GraphQL, gRPC, AsyncAPI, RAML or API Blueprint — get any other format back, validated, in your browser. ToolingLiveOpen ↗
  2. Nº 80 A fair-share maintenance splitter for housing societies Splits a building's monthly bill across flats by area, equally, or custom — reconciled to the paisa. ProductLiveOpen ↗
  3. Nº 81 The 75% attendance line, made visible Shows exactly how many classes you can miss — or must attend in a row — to stay eligible. ProductLiveOpen ↗
  4. Nº 82 The marks-you-still-need exam calculator Weighs your internal marks in and gives the exact final-exam score to pass or hit a target grade. ProductLiveOpen ↗
  5. Nº 83 An EV-vs-petrol cost verdict Break-even and lifetime cost from your own prices — no lead capture, no live data. ProductLiveOpen ↗
  6. Nº 84 A private result sheet for tuition teachers Turns a class's marks into ranks, grades and a printable parent sheet — kept on your own machine. ProductLiveOpen ↗
  7. Nº 85 A retirement money-lasts ledger Month-by-month depletion and a sensitivity grid, under your own assumptions — never a forecast. ProductLiveOpen ↗
  8. Nº 86 A break-even calculator for a farm acre Input costs and yield into cost-per-quintal and the price you must beat — no MSP, no advice. ProductLiveOpen ↗
  9. Nº 87 Car vs cab vs metro, honestly costed The true monthly cost of the commute you already take. ProductLiveOpen ↗
  10. Nº 88 A feast quantity planner Guest count and menu into kilograms and a printable market list — portions as ranges, not rules. ProductLiveOpen ↗
  11. Nº 89 A give-and-return gift register Logs shagun given and received across years so you can reciprocate to custom — kept for decades. ProductLiveOpen ↗
  12. Nº 90 Where your quotes run short Log what you quoted against what you finally billed; see which job types you under-quote. ProductLiveOpen ↗
  13. Nº 91 The real cost of a mandi load One bill in — landed cost per sellable kilo, after the home re-weigh and the cull. ProductLiveOpen ↗
  14. Nº 92 The highest bid you can afford Your retail rate and your own shrink become a pocket card of maximum bids. ProductLiveOpen ↗
  15. Nº 93 What your copier really costs per page Meter readings and every rupee spent become an all-in cost per page across the machine's life. ProductLiveOpen ↗
  16. Nº 94 Your salon's day, counted at close A two-minute tally becomes chair-minutes used and, over months, the service mix. ProductLiveOpen ↗
  17. Nº 95 Last year's festival order, remembered What you ordered, what it cost and what ran out — three years side by side. ProductLiveOpen ↗
  18. Nº 96 Two scales, two different clocks Verification dates per instrument and per weight, printed inspection-ready. ProductLiveOpen ↗
  19. Nº 97 What must never be chilled Chilling-injury and do-not-stack pairs, cited; holding days you fill in from your own cart. ProductLiveOpen ↗