Everyday tools.
No strings.

Music KIN-001

Kin

Ukulele Tuner

v1.1

by Maya

Tune your ukulele using your phone's microphone. Standard and alternate tunings. Shows you which way to turn the peg. That's it.

Replaces GuitarTuna, Fender Tune

Music KIN-002

Kin

Metronome

v1.1

by Darren

Set a tempo, hear the click. Tap to find the BPM. Subdivisions if you need them. Works offline.

Replaces Pro Metronome, Soundbrenner

Music KIN-003

Kin

BPM Counter

v1.1

by Darren

Tap along to anything playing and get the tempo. Useful for DJs, musicians, dancers, runners — anyone who needs to know how fast something is.

Replaces BPM Tap apps with ads

Design KIN-004

Kin

Colour Picker

v2.0

by dBridge

Pick any colour on the wheel, dial in lightness and saturation, then explore harmony palettes, shades, and tints. Copy values as hex, RGB, HSL, or a CSS variable. Check WCAG contrast and preview colour blindness modes. Nothing leaves your browser.

Replaces Coolors Pro, Adobe Color, browser dev tool colour pickers

See it in action →

Utility KIN-005

Kin

QR Builder

v2.0

by Darren

Turn any link, text, wifi password, or contact into a QR code. Download as an image. Everything happens in your browser, nothing sent anywhere.

Replaces QR Tiger, Beaconstac

Education KIN-006

Kin

Classroom Timer

v1.0

by Darren

Big, full-screen countdown for classrooms. Colour shifts from green to amber to red as time runs out. Pick a preset or set your own. Chime at the end.

Replaces Google Timer, random online timers

Wellbeing KIN-007

Kin

Ambient Mixer

v1.1

by Darren

Rain, wind, waves, fire, white noise and pink noise — layer and mix them however you like. Sleep timer included. Save presets or share a mix with someone.

Replaces Noisli, A-Soft Murmur

Learning KIN-008

Kin

Flashcards

v1.0

by Darren

Make your own flashcard decks, flip through them, mark what you know. Saved in your browser. Your data stays on your device.

Replaces Quizlet Plus, AnkiApp

See it in action

Travel KIN-009

Kin

Jet Lag Planner

v1.1

by Darren

Enter where you're flying from and to, get a plan to reset your body clock. When to seek light, when to sleep, when to expect the worst. Works offline.

Replaces Timeshifter, Jet Lag Rooster

Music KIN-010

Kin

Audio Calculators

v1.0

by Darren

18 calculators for anyone making or mixing music. Delay times, frequencies, sample rates, latency, room modes, file sizes and more — all in one place, no clutter.

Replaces scattered online audio calculators

Shopping KIN-011

Kin

Unit Price Calculator

v1.0

by Darren

Work out which size is actually cheaper. Compare any two packs — 6x330ml vs 2L, 500g vs 1kg — and see the real cost per unit. No maths required.

Replaces mental maths in the supermarket aisle

Utility KIN-012

Kin

Random Name Picker

v1.1

by Darren

Paste a list, pick one or more at random. Save class lists, mark who's absent, split into teams. Keeps a history so nobody gets picked twice. Good for classrooms, PE lessons, standups, raffles — anything that needs to be fair.

Replaces Wheel of Names, random.org

Wellbeing KIN-013

Kin

Mood Slider

v1.0

by Darren

Slide a scale to log how you're really feeling. Add a note if you want. See your last seven days, colour-coded by mood. Private, offline, no account.

Replaces mood tracking apps that want your data

Wellbeing KIN-014

Kin

Breathing Exercise

v1.1

by Darren

Guided breathing exercises — box breathing, 4-7-8, ADHD reset, wind-down for sleep. Visual guide, audio cues, optional voice prompts. Fully offline, no account.

Replaces Calm, Headspace, breathing apps with accounts

Health KIN-015

Kin

Quiet Cycle

v1.0

by Alice and Darren

Track your cycle, predict your next period, log symptoms and notes. PIN lock and panic delete if you need them. Everything stays on your device.

Replaces Clue, Flo, period trackers that sell your health data

Utility KIN-016

Kin

Recipe Scaler

v1.0

by Darren

Paste a list of ingredients, change the number of servings, get the adjusted amounts. Handles fractions and unit conversions. Nothing sent anywhere.

Replaces recipe scaling apps that require sign-up

Wellbeing KIN-017

Kin

Decision Flip

v1.0

by Alice

Stuck between options? Paste them in, hit Decide. One gets picked. Nothing saved, nothing sent.

Replaces overthinking

Health KIN-018

Kin

Kin Nest

v1.1

by Alice and Darren

Track feeds, sleep, nappies and growth for a new baby. Routine intelligence estimates the next feed. Export a printable report for health visitor appointments. No account, no cloud, nothing leaves the device.

Replaces apps that want an account, a subscription, or access to your baby's data

See it in action →

Utility KIN-019

Kin

Markdown Download

v1.0

by Darren

Write or paste text and download it as a Markdown file. Word count, character count, copy to clipboard. No editor needed, no account, nothing saved.

Replaces opening a code editor just to save a quick .md file

Utility KIN-020

Kin

Password Generator

v1.0

by Darren

Generate strong passwords or easy-to-remember passphrases in your browser. Adjust length, characters, and complexity. Strength meter included. Nothing stored, nothing sent.

Replaces ad-heavy password generator websites

Utility KIN-021

Kin

Text Counter

v1.0

by Darren

Paste any text and see word count, character count, reading time, and how readable it is. Highlights if you're over platform limits. Select a passage to count just that part. Nothing stored.

Replaces wordcounter.net and similar ad-heavy sites

Utility KIN-022

Kin

Fair Share

v1.0

by Darren

Split shared costs without signing up for anything. Log what was spent, split it equally or however you like, and see who owes who. Tip calculator included. Data stays on your device.

Replaces Splitwise, Tricount

Developer KIN-023

Kin

JSON

v1.1

by Darren

Paste JSON, get it formatted and validated. Browse as a tree, compare two payloads, or query by path. Nothing leaves your browser.

Replaces jsonlint.com, jsonformatter.org

Wellbeing KIN-024

Kin

Thought Loop

v1.0

by Darren

Write down a thought that won't leave you alone. Answer three questions. Get a verdict: Act on it, Schedule it, Let it go, or recognise it's Not Yours. History shows what you keep coming back to.

Replaces CBT worksheets, anxiety journaling apps

Wellbeing KIN-025

Kin

Stretch

v1.0

by Darren

Pick a routine — morning, desk break, post-run, bedtime, or chair-based. Set your hold time. Audio cues move you through it, and every stretch has an easier version.

Replaces YouTube stretch videos, app-gated routine planners

Utility KIN-026

Kin

Kin Ground

v1.0

by Darren

Track your monthly costs, subscriptions, and savings buffer. Know your true baseline, spot what's draining you, and see your money clearly — no account, no bank connection.

Replaces budgeting apps that require an account, spreadsheet sprawl

See it in action →

Utility KIN-028

Kin

Scan

v1.0

by Darren and Daisy

Scan documents and photos to PDF using your camera or image library. Adjust brightness, contrast, and black-and-white. Crop, rotate, reorder pages. Export a clean multi-page PDF — no account, no upload, nothing stored.

Replaces CamScanner, Adobe Scan, Microsoft Lens — all behind accounts or paywalls

Wellbeing KIN-029

Kin

Nudge

v1.0

by Darren

A small push when you're stuck. Filter activities by energy level, time, and type. Thumbs up what helps — the shuffle learns. No streaks, no scores, no guilt.

Replaces decision paralysis — fills a gap no free tool covered

Business KIN-030

Kin QIR

Quote

v1.1

by Darren

Generate quotes with flexible line items. Set your prefix and auto-increment numbering, save defaults for repeat use. Clipboard export carries the full document to Invoice. Nothing leaves your device.

Replaces invoice apps that require accounts and monthly fees

See it in action →

Business KIN-031

Kin QIR

Invoice

v1.1

by Darren

Turn quotes into invoices and track payment. Import from Quote, mark paid or partial, export to Receipt. Nothing leaves your device.

Replaces Wave, FreshBooks, Xero for simple invoicing

See it in action →

Business KIN-032

Kin QIR

Receipt

v1.1

by Darren

Confirm payment with a clean receipt. Import from Invoice, traces the full chain back to the original quote. Nothing leaves your device.

Replaces PDF receipt generators with ad-walls

See it in action →

Utility KIN-033

Kin

Page Surgeon

v1.1

by Darren

Load a PDF and rearrange pages by dragging. Rotate, remove, or cherry-pick pages to export. Save all pages as a new PDF or export only the ones you need. Nothing leaves your browser.

Replaces online PDF tools that upload your files to a server

Education KIN-034

Kin

Noise Meter

v1.0

by Liam

See when a room gets too loud. Green, yellow, red colour metering with adjustable sensitivity and screen wake lock. Built for classrooms — put a tablet at the front of the room and let the colour bar do the talking.

Replaces expensive classroom sound meters and subscription noise apps

Wellbeing KIN-035

Kin

Random Acts

v1.0

by Darren

One act of kindness or defiance per day. Tap to reveal, note what happened, reflect on how it felt. 73-act shuffled deck resets when complete. Everything stays on your device.

Replaces random act apps that need a sign-up, track your data, or push you toward the same safe suggestions

Health KIN-036

Kin

Blood Pressure

v1.2

by Darren

Log blood pressure readings with AHA categories. Track trends over time and print reports for your doctor. Nothing leaves your device.

Replaces blood pressure apps that require an account, sync to the cloud, or upsell premium features

Wellbeing KIN-037

Kin

Unclaimed

v1.0

by Darren

UK funding, grants, and support most people don't know about. Benefits, arts funding, enterprise grants, helplines. 60+ entries with per-item status tracking. Nothing leaves your device.

Replaces benefits calculators that need your details, and grant databases behind paywalls or sign-up walls

Health KIN-038

Kin

Wets Go!

v1.1

by Darren

Build bathroom routines and track hydration for your family. Set timed reminders, log visits, spot patterns, and generate a printable plan for school. Age-adapted child mode makes it theirs, not yours. Nothing leaves your device.

Replaces apps that charge you to set a timer and track a chart

See it in action →

Education KIN-039

Kin

Is This Real?

v1.2

by Darren

Look up any product or practice and find out what is real. Food, fashion, health, software, finance. Each entry tells you the deception, how to spot it, and what to trust instead.

Replaces one place for what used to take hours of searching

Health KIN-040

Kin

First Aid Guide

v1.1

by Darren

Know what to do before help arrives. Step-by-step guides based on 2025 international resuscitation guidelines. Emergency numbers for 45 countries. Medication dosing by weight. Works offline.

Replaces scattered first aid guides and apps that need an account or cost money

Health KIN-041

Kin

Dosage

v1.2

by Darren

Track medications, log doses, manage refills. Print a clean list for your GP. Scan a label to add a med. Download .ics reminders. Nothing leaves your device.

Replaces medication reminder apps that need an account, subscription, or send your data to the cloud

See it in action →

Family KIN-042

Kin

Together Cards

v1.1

by Darren

Conversation cards for families. Questions designed to help you understand each other — really understand each other. Nothing leaves your device.

Replaces card game apps that require a purchase, subscription, or internet connection to play

Productivity KIN-073

Kin

Vunique

v1.3

by Darren

A personal curation list. Save URLs with notes, categories, and attribution. Export as a clean page. Your data stays on your device.

Replaces browser bookmarks that don't support notes, context, or attribution

Wellness KIN-043

Kin

Frequency

v1.1

by Darren

Binaural beats, carrier mix and breath guide for focus and decompression. Pre/post set modes with glide. Nothing leaves your device.

Replaces binaural beat apps that require a subscription or send session data to the cloud