Draupnir was Odin’s gold ring.
Every ninth night, eight more dropped from it.
39 free tools that keep multiplying.
Trackers, calculators and games for your health, money and study. Each opens in one tap, needs no account, and keeps what you type on your own device. New ones keep landing.
How fast are you?
Tap the panel, wait for green, then tap again. Space bar works too.
Try the five-light start version →Your shelf
Tap the on any tool to keep it here. Tools you open show up here too. This list lives only in your browser.
Games
6 tools- Memory PairsFind the eight pairs in as few moves as you can.
- Noughts and CrossesPlay a friend or the computer.
- Number SlideThe classic 15 puzzle: slide the tiles into order.
- Lights Out (reaction test)Five red lights. When they go out, go. Jump starts count.
- ReversiTwo players on one device.
- Rhythm TrainerHear a rhythm, tap it back, see how close you were.
Health
9 tools- Calorie TrackerCount calories and protein, with Indian foods built in.
- Calories in Indian FoodCalories and protein per serving for common dishes.
- Gym LogLog sets and reps, see your last session and your bests.
- Medicine LogTick each dose and see the last 7 days. It cannot remind you.
- Mood DiaryOne tap a day and a line about why.
- Period TrackerLog periods and see when the next one is expected.
- Sleep LogHours slept and your 7-day average.
- Water TrackerOne tap per glass, with a daily goal.
- Weight LogLog your weight and watch the weekly trend.
Hobbies
3 toolsMoney
6 tools- Buy or WaitCost per use and hours of work, before you buy.
- EMI CalculatorMonthly EMI, total interest and a yearly breakup.
- Expense TrackerWhat you spent, by category and per day.
- GST CalculatorAdd or remove GST, with the CGST and SGST split.
- Savings GoalHow much to save each week to reach a target.
- SIP CalculatorWhat a monthly amount adds up to. Arithmetic only, no advice.
Planning
3 toolsStudy
4 toolsUtilities
8 tools- GIF MakerTurn a video clip or a few pictures into an animated GIF. Nothing is uploaded.
- Image ResizerResize, rotate and caption a photo. It never leaves your browser.
- Images to PDFPut photos, scans or screenshots into one PDF, A4 or US Letter. Nothing is uploaded.
- Percentage CalculatorPercent of, what percent, and percent change.
- Scam Message CheckerSee which scam signs a message shows. English only.
- Shop Website MakerFill one form and download a one-page website.
- Sticker MakerTurn a photo into a 512 x 512 WebP sticker under 100 KB. Nothing is uploaded.
- Word CounterWords, characters, reading and speaking time.
Nothing matches that. Try a shorter word, or tell me what you were looking for on X.
Your data stays with you
No account and no server. Each tool saves inside your own browser, and the trackers can download a backup or delete everything. Clearing your browser data removes what you saved, so take a backup now and then.
Works without internet
After your first visit the tools open offline. To keep them on your phone, choose “Add to Home screen” in your browser menu.
Tell me what is missing
Something broke, or you want a tool that isn’t here? Message @makishima1984 on X. I also make short animated videos on YouTube and Instagram.
Who makes these? One person. I build the tool I wish I had, then the next one, and keep them all free with no ads. That is the Draupnir idea: the shelf keeps adding rings.