Kasey LabsFree web apps that run in your browser
- Apps & tools 13
- Guides (JA) 22
- Lab logs (JA) 14
- No sign-up. Nothing to install.
Apps and tools
Kasey Keys88-key pianoAn 88-key grand piano for checking melodies and chords. Full screen in landscape on phones.MusicLive
Kasey VoiceVocal trainingVocal training with piano accompaniment adapted to your range. 12 exercises, adjustable tempo and a metronome.MusicBeta
Kasey InvoiceInvoices as PDFCreate quotes, delivery notes, invoices and receipts as PDFs (Japanese tax rules only; Japanese interface).WorkLive
Kasey ClipSave X threadsCollect public X threads with text and images, then copy them into your notes.NotesLive
VaultDropNotes → ObsidianA Mac app that exports Apple Notes, sets up Obsidian and gets search ready in one pass (paid, $12).NotesMac $12
Kasey AwakeKeep screen onPress start and the screen stays on while the page is visible, even when power settings are locked.WorkLive
Kasey TimerTimer for workCountdown, Pomodoro, presentation bells, meeting time boxes with live cost, and deadline countdowns. Free, no sign-up.WorkLive
Spark DrawIdea cards for songwritingDraw one card when your song stalls. 120 cards for ideas, arrangement, and mindset. Free, no sign-up.MusicLive
Larynx Simulator3D vocal fold simulatorA 3D voice-training model. See how larynx muscles work and how the vocal folds vibrate in chest voice, mix, head voice and falsetto. Free.MusicLive
HUNTER×HUNTER 再開予測Return date prediction (unofficial)An unofficial estimate of when Hunter x Hunter returns, calculated from Togashi's progress posts on X and past hiatus cycles. Method and accuracy shown. Free.HobbyLive
Kasey HangulKorean in 10 minutes a day (Japanese only)Learn to read Hangul and pick up phrases for travel, K-pop and live music, with spaced review and recording practice. Japanese interface only. Free.LearningLive
バンドマン診断If you were in a band (Japanese only)Enter an X username to get a made-up band persona: stage name, part, band, favorite drink and a shiny trading-card illustration. Japanese interface only. Free.HobbyBeta
芋焼酎おすすめ診断Find your shochu in 10 food questions (Japanese only)Answer 10 questions about food you like and get a match from 52 sweet-potato shochu brands, with serving tips and snacks. Japanese interface only. Free.HobbyLive