AN INDEPENDENT PRACTICE

Make ideas
work.

Between an idea and reality.
Small worlds, designed and run directly.

JH KIM — DESIGN & DEVELOPMENTSTILL CURIOUS. STILL CODING.SCROLL TO DISCOVER

00 / WHAT IS STILL CODING

Small tools and games
that open in a browser.

Still Coding is a portal for the web apps that independent developer JH Kim designs, builds, and runs: a game collection you start with a single link, a Japanese kana learning studio, a team collaboration space that keeps materials off the server, a bus route explorer, a text-to-piano score studio, a pitch feedback tool for singers, and an automatic guitar accompaniment.

Every app opens in a browser without installation or sign-up. Each detail page explains who the app is for, three steps to get started, where data is stored, and common questions.

01 / SELECTED WORKS

Proof of curiosity.

Less talking, more working.
Projects that began from different questions.

Games

Browser games you start together with a link.

WORK / 01SELECTED PROJECTLIVE

Co-op · Puzzle **Photo Puzzle** Assemble photo tiles and discover hidden places. *1–8 players~10 min*

Observation · Deduction PINHOLE Scan a scene through a tiny circular window and identify what is hidden. 1–8 players~3 min

Brain · Deduction **Number Baseball** Deduce the secret number using strike and ball clues. *1–8 players~6 min*

Party · Racing **Pocket Race** Gather via QR code and race together for 30 fast seconds. *2–4 players~1 min*

Action · Puzzle SUM DROP Drop number blocks, chain sums of ten, and compare your score. 1–8 players~5 min

Brain · Logic **6×6 Mini Sudoku** Complete the 1–6 grid using pencil notes and logic. *1–8 players~8 min*

Party · Deduction **Spy Game** Uncover the secret spy through conversation and deduction. *4–12 players~8 min*

Co-op · Puzzle **Sliding Photo Puzzle** Slide tiles toward the empty slot to restore the photo. *1–8 players~10 min*

Casual · Brain **Sum Puzzle** Pick 1–9 tiles to reach the target sum and clear the board. *1–8 players~5 min*

Party · Competition **Multiplayer Rock Paper Scissors** Choose in secret, reveal together, and compete over several rounds. *2–8 players~5 min*

DIRECT PLAY 01 / 10

GAME / MULTIPLAYER EXPERIENCE

Direct Play

Playing together should feel easy.

Photo and sliding puzzles, number baseball, a sum puzzle, 6×6 mini sudoku, pocket racing, a spy game, multiplayer rock paper scissors with simultaneous reveals, plus PINHOLE, a tiny-window observation game, and SUM DROP, a make-ten chain puzzle. Open a public or private room and play with up to 12 people, depending on the game, without installing anything.

10 games
1–12 players
Public · Private

Details Guide Dev Notes (KR) 15 Choose a game

The thinking

Ten browser games in one doorway. Choose a game, create a room, and invite people with a link.

Learn

Study tools built around hands-on practice.

WORK / 02LEARN / INTERACTION DESIGNLIVE

かな
KANA ATELIER1 / 149 forms

One sound, two scriptsあ and ア, the same sound.Start lesson ›

あ

Listen, speak,
learn by hand.

LEARN / INTERACTION DESIGN

Kana Atelier

Feel the character before you memorize it.

Practice hiragana and katakana through writing, speech, words, similar characters, and paired review.

149 forms
Writing · Speech
Progress

Details Guide Dev Notes (KR) 5 Start learning kana

The thinking

Connect shape, sound, and hand movement through writing, listening, and paired review.

Music

Tools for playing, hearing, and seeing sound.

WORK / 03MUSIC / AUTO ACCOMPANIMENTLIVE

MUSIC / AUTO ACCOMPANIMENT

Guitar Auto-Strum

Leave the strumming to the app.

Accompany yourself in two ways: live chord changes and song chord charts. Choose key, time signature, rhythm, tempo, swing, and strum pattern, and hear acoustic guitar sound built by physical modelling alongside a fretboard view.

Auto accompaniment
Live · Song chart
Works offline

Details Guide Dev Notes (KR) 5 Start accompaniment

The thinking

Change the chord and the rhythm keeps flowing. Live and song modes keep setup short so more of your time goes to music.

WORK / 04MUSIC / PIANO PLAYLIVE

PIANO / PLAY

NOW PLAYINGC4

PRESS A KEY. MAKE A SOUND.

MUSIC / PIANO PLAY

Songnote

From score to sound, one studio.

Piano Play is the portal name for Songnote. Edit ABC notation, preview the score, play it with a synthesised piano, and use the on-screen 108-key keyboard.

ABC score
108 keys
On this browser

Details Guide Dev Notes (KR) 2 Open Songnote

The thinking

Piano Play is the portal name for Songnote. Edit ABC notation, preview the score, and play it on a 108-key keyboard.

WORK / 05MUSIC / AUDIO FEEDBACKLIVE

VOCAL CHECK● LISTENING

CURRENT NOTEA⁴440.0 Hz

SEE YOUR VOICE.

MUSIC / AUDIO FEEDBACK

Vocal Check

See the pitch inside your voice.

Visualise the pitch of microphone input so you can see what changes while you practice. The demo and guide work before you allow the microphone.

Pitch
Microphone
Realtime

Details Guide Dev Notes (KR) 2 Check your pitch

The thinking

Visualise microphone input to see the current note and its movement while you practice.

Tools

Practical apps for work and everyday errands.

WORK / 06TOOLS / REALTIME COLLABORATIONLIVE

TOOLS / REALTIME COLLABORATION

CollaBoard

A room for thinking together.

Create a room and share materials through eight tools: whiteboard, brainstorming, Q&A, quiz, voting, files, announcements, and feedback.

8 team tools
WebRTC P2P
No storage

Details Guide Dev Notes (KR) 2 Open collaboration tools

The thinking

Create a room and share a link with your team. Eight tools connect participants through WebRTC.

WORK / 07TOOLS / PDF WORKSPACELIVE

TOOLS / PDF WORKSPACE

PDF Flow Studio

Rearrange and merge pages safely.

Rearrange, rotate, draw annotations, insert blank pages, and merge PDF documents without uploading files to any external server. All processing happens entirely within your browser memory.