Build printable, poker-sized reference cards for the terminal, then study them with a built-in spaced-repetition quiz.
TermDecks turns a list of commands into a real deck of cards. Group commands into categories and sections, tweak the look, and print a double-sided deck you can cut out and keep by your keyboard. Or flip through them on screen and drill yourself until they stick.
It's a single, dependency-free index.html. No build step, no server, no account. Everything lives in your browser's local storage.
- 🗂️ Structured editor: Categories → Sections → Entries (command + description + optional question). Drag to reorder or move between sections, duplicate, collapse, recolor. Keyboard-first:
cmd → desc → question → next entry, all without the mouse. - 🃏 Designed cards: each section becomes a poker-sized card (2.5″ × 3.5″), spilling onto extra cards when its entries don't all fit. Front = the commands; back = the section's questions. Backtick-wrapped keycaps render as
kbdchips. - 🖨️ Print / Save PDF: lays cards out 9-up (3×3) per sheet with mirrored backs for double-sided printing, cut guides, US-Letter or A4. What you see (search + filters) is what prints.
- 🧠 Quiz mode with spaced repetition: a Leitner-box study loop. Reveal the answer, grade Again / Got it, and weak cards resurface far more often than mastered ones. Tracks mastery per collection; shuffle and reset on demand.
- ◆ Two card-back styles: Questions (study-forward) or Navigator (a bold category band for sorting a fanned/stacked deck), with the questions always visible.
- 📦 Collections & Decks: keep multiple libraries; carve any library into named decks (the sections you pick, which become its cards). A dedicated Decks window manages every deck across all collections, so you can create, rename, delete, copy between collections, and import/export individual decks.
- ➕ Expansions: twelve ready-made decks to start from or fold into your own. Linux is the base starter; the rest layer on top, adding only the depth the base leaves out. Terminal fundamentals: SSH & remote, Bash & zsh power, HTTP & APIs, Archives & transfer. Tools: DevOps, AI-Assisted Engineering, Vim & Neovim, tmux, Git (deep), jq + awk/sed/grep. Plus Terminal Toys for fun.
- 📑 CSV & JSON import/export: bring commands in from a spreadsheet, or back up everything to a file. A "Back up all" / "Delete all" pair lives in Settings.
- 🎨 Themes & fonts: Auto/Nord/Catppuccin/Solarized/Pastel/Vibrant/Graphite palettes; JetBrains Mono, IBM Plex Mono, Fira Code, or system monospace.
| A single card | Quiz / study mode |
|---|---|
 |
 |
| Print sheet (3×3, ready to cut) | The Decks window |
|---|---|
 |
 |
It's one self-contained file. Just open it.
# clone, then open in a browser
git clone https://github.com/zntznt/termdecks.git
cd termdecks
open index.html # macOS (or: xdg-open index.html on Linux)To print, click Print / Save PDF and choose your printer or "Save as PDF" in the print dialog. For double-sided cards, set your printer to flip on the long edge (the default); use short edge if the backs come out upside-down.
File-based auto-backup ("Sync to file" in Collections) uses the File System Access API, available in Chromium-based browsers (Chrome/Edge). Everything else works everywhere.
Collection a library (e.g. "Linux Command Line")
└─ Category a colored group (e.g. "Files & dirs")
└─ Section → becomes one or more cards (e.g. "Navigate")
└─ Entry a command + description + optional question
- A section becomes a card, and if its entries don't all fit, it spills onto extra cards (each footed page N of M). The front lists the section's entries; the back shows their questions.
- A deck is a named subset of one collection's sections (those sections become the deck's cards). Pick the ones you want with Select cards in the viewer.
- Quiz mode is a viewer feature, not a card property: it never changes how cards render or print.
| Key | Action |
|---|---|
/ |
Focus search |
← → |
Previous / next card |
F |
Flip the current card |
Space |
Quiz: reveal the answer |
1 2 |
Quiz: grade Again / Got it |
S |
Quiz: reshuffle |
Enter |
Editor: next field, then add a new entry |
Tab |
Editor: move between fields (from a description, into its question) |
Esc |
Clear search / close menus |
Everything is stored locally in your browser (localStorage, plus IndexedDB for the optional file-sync handle). Nothing is sent anywhere; there's no backend. Use Settings → Back up all to export every collection and your study progress to a single JSON file, and the Collections / Decks windows to import or export individual pieces.
The only network requests are to Google Fonts for the card typefaces.
A single index.html: vanilla JavaScript, hand-rolled SVG icons, and CSS. No frameworks, no build tooling, no dependencies. Cards, the on-screen preview, and the print layout all share the same DOM so the preview is a faithful proof of the print.
MIT.