keycombiner.com

What is KeyCombiner?

KeyCombiner is a web-based tool for learning and retaining keyboard shortcuts, aimed at people who work in software all day and want to stop reaching for the mouse. Its core idea is to treat shortcuts like vocabulary: you assemble the ones relevant to you, then drill them in short interactive sessions rather than scrolling through a static cheat sheet.

What it actually does

• Build personal collections. You import shortcuts from a public database covering tools such as VSCode, Vim, IntelliJ, Gmail, Notion and Excel, then edit, duplicate or rearrange the entries. Anything missing can be added manually.
• Practice flash-card style. Collections become practice sessions, with spaced repetition used to schedule what you review and statistics to show where you are still slow or inaccurate.
• Follow curated courses. Ready-made courses are broken into small lessons, each attributed to a domain expert, so you can learn a coherent set instead of cherry-picking.
• Look up shortcuts in place. KeyCombiner Desktop adds an instant lookup on Windows and Linux, triggered by a configurable key binding, showing shortcuts from your collections plus those of the currently active application. The same lookup works for frequently needed text such as Git commands or regex syntax.

Who gets the most out of it

The fit is strongest for someone juggling several applications with overlapping key maps — a developer moving between an editor, a terminal, a browser and a chat tool — or anyone who has tried and failed to memorize shortcuts from a poster. Casual users who only need five shortcuts in one program will find a plain cheat sheet sufficient.

How it compares to alternatives

A practical way to judge it: pick one program you use daily, import its shortcuts, and run a few sessions over a week. If you notice yourself using the mouse less in that program, the method is working for you; if not, the practice overhead probably outweighs the benefit. The site offers a free sign-up, and you can see the mechanics in action through its practice demo before committing to a collection. For a broader set of pre-built shortcut references, KeyCombiner itself is the relevant destination.

How do I import shortcuts from public collections into my own collections?

Importing works by treating public collections as a source library: you browse or search them, select the shortcuts you want, and add them to a collection you own. KeyCombiner describes this as similar to building a music playlist—you pull entries from a public database (VSCode, Vim, IntelliJ, Gmail, Notion, Excel and others are named) into personal collections rather than starting from a blank list. Once imported, the entries are yours to edit: you can modify, duplicate, and move combinations around.

A practical import routine

1. Pick the target first. Create or open the personal collection you want the shortcuts to land in, so you are not importing into a temporary space.
2. Browse or search the public collections for the app you are learning.
3. Select the specific combinations you actually use—not the entire set. A collection of 40 relevant shortcuts is easier to practice than 300.
4. Import, then immediately prune. Delete duplicates and anything that conflicts with shortcuts you already know.
5. Add anything missing yourself. If a shortcut is not in any public collection, KeyCombiner lets you add it manually, so the collection stays complete.
6. Start a practice session on the new collection. Importing only builds the list; the flash-card style practice with spaced repetition is what moves the shortcuts into memory.

Decision criteria

Import broadly when you are new to an application and do not yet know which commands matter. Import narrowly when you already work in the app daily—your goal is closing specific gaps, not relearning what your fingers already know.

If you would rather not curate at all, the curated courses and lessons take the opposite approach: a domain expert defines small, pre-built lessons. That is less work but less tailored. Importing gives you control over scope; courses give you a sensible default order.

Where it fits

This suits people juggling several tools—developers moving between an editor, a terminal, and a chat or spreadsheet app—who want one place to look up and drill the combinations they keep forgetting. For a quick lookup while working, KeyCombiner Desktop is described as showing shortcuts from your collections and lessons plus those of the currently active application, triggered by a default binding of Meta/Cmd + Alt + C that can be changed. The same lookup is described as usable for text snippets such as Git commands or regex syntax, which is a different use case from shortcut drilling but shares the same collection structure.

Next step: open KeyCombiner, create one small collection for the app you use most, import only the shortcuts you have caught yourself hunting for, and run a single practice session on it before adding a second app.

How does KeyCombiner Desktop's instant lookup work in any application?

KeyCombiner Desktop's instant lookup is a system-wide overlay: it shows shortcuts from your own collections and lessons, plus those of whichever application is currently active, without making you leave that app. You trigger it with a global hotkey — the page lists Meta/Cmd + Alt + C as the default, and notes you can rebind it.

Two practical consequences follow from that design:

• Context matters. Because it reads the active application, the same hotkey can surface different shortcuts depending on whether you're in an editor, a browser or a chat client — provided that app's shortcuts are in your collections.
• It isn't limited to shortcuts. The page describes using the same lookup for hard-to-remember text, with Git commands, regex syntax and language constructs as examples people use it for. In effect it doubles as a personal cheatsheet.

A concrete scenario

You're mid-edit in an unfamiliar editor and can't recall the key for "split editor." Instead of alt-tabbing to a browser, searching, and losing your place, you press the lookup hotkey and read the answer over your work. The value is the interruption you avoid, not the information itself — you could always have searched for it.

What to check before relying on it

Next step: create one small collection for the app you use most, import its shortcuts from the public database, and test the lookup hotkey inside that app for a day. If the answers you actually need keep appearing, expand; if you keep having to search anyway, your collections are the thing to fix, not the tool.

What spaced repetition and statistics features does KeyCombiner offer for learning shortcuts?

KeyCombiner treats shortcut learning like flashcard study: you build collections of shortcuts, then drill them in interactive sessions that use spaced repetition to decide what you see and when. The site also says it tracks “advanced statistics” so you can see your progress and weak spots rather than just grinding through the same list.

Spaced repetition

• You practice a collection flash-card style, with the algorithm aiming to maximize learning efficiency.
• The idea is to surface items at intervals that help you retain them, instead of repeating everything equally.
• Because you can import from public collections (VS Code, Vim, IntelliJ, Gmail, Notion, Excel and others), the repetition is applied to the exact shortcuts you chose, not a generic preset drill.

Statistics and accuracy tracking

• KeyCombiner advertises advanced statistics alongside the practice sessions.
• The page also lists “Improve Accuracy” as a feature area, which suggests the stats are meant to highlight mistakes and help you tighten up recall.
• Practical use: after a session, check which combinations you miss repeatedly, then either re-practice that collection or split it into smaller lessons.

How the pieces fit together

A useful next step: pick one app you use daily, import only its shortcuts, and run a short practice session. Then look at the statistics to see whether your errors cluster around a few combinations; if they do, make a smaller collection from those and let spaced repetition handle the rest.

Which applications and tools have public shortcut collections available on KeyCombiner?

KeyCombiner's public shortcut database covers a mix of code editors, IDEs, communication tools, note apps, and spreadsheets. Based on the site's own examples, you can import collections for applications such as VSCode, Vim, IntelliJ, Gmail, Notion, and Excel. The page describes this as "a large public database" rather than listing every entry, so treat those names as representative rather than exhaustive.

A practical way to use this: if you're a developer who lives in VSCode but occasionally works in IntelliJ or the terminal, import both editor collections into one personal collection and practice them together. If your work is more email- and document-centric, the Gmail and Notion collections are the more relevant starting points.

If the app you rely on isn't in any public collection, the site says you can add shortcuts yourself, so the database is a starting point rather than a hard limit.

How do I create and practice my own custom shortcut collections?

Create a personal collection by importing shortcuts from KeyCombiner's public database, then add or edit entries yourself, and practice that collection in flash-card style sessions. On KeyCombiner, the workflow is: pick a public collection for an app (VSCode, Vim, IntelliJ, Gmail, Notion, Excel, etc.), import the shortcuts you want into your own collection, adjust or duplicate individual combinations, then run interactive practice sessions on it. Spaced repetition and statistics drive the review schedule, so you drill the shortcuts you keep getting wrong more often rather than everything equally.

A practical sequence for one app:

1. Create a collection named after the app or workflow (e.g. "VSCode editing").
2. Import the relevant public collection, then delete shortcuts you will never use.
3. Add any missing shortcut yourself.
4. Practice the collection; let the statistics show which combinations need more repetitions.
5. Review in short, frequent sessions instead of one long block.

If you work across several apps, keep collections separate rather than merging everything into one giant deck. A merged deck mixes contexts and makes review sessions longer without improving recall for any single app. Separate collections also let you pause one app while focusing on another.

For lookup while working, KeyCombiner Desktop is the page's stated option: it shows shortcuts from your collections and lessons plus those of the currently active application, triggered by a default Meta/Cmd + Alt + C binding that you can change. The same lookup can hold text snippets you frequently need, such as Git commands or regex syntax. That turns your practice collections into an on-the-job reference rather than a separate study activity.

A concrete scenario: a developer learning VSCode navigation imports only the navigation and refactoring shortcuts, practices them for a few days, and keeps the desktop lookup open for the ones not yet automatic. A writer using Notion might do the same with formatting and block-editing shortcuts.

Next step: start with one app, one collection, and a small import — then practice before adding more.