Change any app.
Add anything.
Delete anything.

Closed source doesn’t stop you anymore.

The Obsidian note has no focus timer. Morse is open at the bottom with the ask for a focus panel. The panel was not on the note, then it appears on the right.
A timer Obsidian did not ship. Obsidian ships no focus timer. The note was open with none. Morse is open at the bottom with the ask: a panel with this note's reading time and a 25 minute countdown. The panel was not there. Then it is.

Your apps have cheat codes. You write them.

Reverse engineer closed apps. Rip out the parts you hate. Build the features they won’t give you.

Skip the feature request. Hack it in.

The company shipped its version. You don’t have to keep it. Morse inspects the running app and writes code to change it. Kill the feed. Build the missing export. Take a feature from another app and make it work here. Tell Morse what you want:

⌃⌥SpaceorCtrlAltSpaceOpen Morse

The words are here. The box can go. “Delete the paywall overlay. Kill the signup popup. Let me scroll.” Ask Morse to remove the blocks covering an article that has already loaded.

Mods you weren’t supposed to need

  • Kill the recommendation feed.YouTube opens to the channels you chose
  • Give me my data.Spotify: export loaded track names, artists and albums
  • Put VS Code’s command palette in Gmail.Search actions. Run your inbox from the keyboard.
  • Catch the edit made after “approved.”GitLab: flag changes since the last approval

Their app. Your rules. Delete the parts designed to keep you scrolling. Add the controls they left out. Keep your version as a mod you can read, edit and switch off.

Describe the hack. Watch the app change.

Open the app. Say what you want to rip out or build in. Morse writes the mod while you watch.

  1. Open Morse.

    Press ⌃⌥Space on Mac, or CtrlAltSpace on Windows and Linux.

  2. Tell it what to hack.

    “Delete the feed.” “Export this playlist’s loaded tracks.” “Put VS Code’s command palette here.” Type it or say it. Morse inspects the app and applies the code it writes.

  3. Keep your version.

    Save the hack. It comes back the next time you open the app. Stack more mods on top, or hit Undo to put things back.

Hack your apps. Keep your code.

No Morse account. No Morse server collecting your apps or your changes.

Zero servers.Morse has no account and no server. Nothing goes to the people who make it.
  • Your mods. Your files.

    The changes live on your computer. Save them, edit them and keep building on them.

  • Your model, your call.

    What you point at goes to the model you chose, and only when you ask.

  • Patch the running app.

    Morse changes the app while it runs. Your mods stay separate from its original files, so updates install as usual.

Open source under the MIT license. Read the source Privacy policy

Closed source is where you start.

Real apps. Real changes. These recorded runs show the starting point. The prompts above are ideas for what to try next.

    Earlier runs tested on Linux and in Chrome. Windows is not yet tested. What was tested

    What can you actually hack?

    Can I steal my favorite feature from another app?

    Yes. Tell Morse which behavior to rebuild and where to put it. A command palette on a website. An export button in an app that left one out. Morse writes a mod for the app you have open; it doesn’t copy another service’s backend.

    Can I delete a paywall?

    If the article has loaded and a paywall overlay covers it, Morse can remove that overlay. Content kept on the publisher’s server still requires access; removing a box cannot retrieve it.

    Can I put my own AI inside an app?

    Yes. Add your own AI controls to the app you already use: a button that checks a thread for contradictions, or a panel that answers questions about the page. Morse works with Claude Code, Codex, or your API key.

    Does the source code have to be public?

    No. Morse reverse engineers the interface and code it can inspect in the running app, then writes your mod. The company doesn’t have to publish its source. The changes run on your computer; they don’t give you control of the company’s servers.

    What does it cost?

    Morse is free. Your model costs what it costs you now. A change is usually one request.

    Which apps work?

    Websites in your browser, and desktop apps built from web pages, like Visual Studio Code, Obsidian and Logseq. Apps like Finder or Word aren’t built from web pages, so they don’t work.

    What if the app updates?

    Updates install as usual. If one breaks a change, click Fix it and your model writes it again.

    Is it safe to install changes other people made?

    Before you install one, Morse says what it does and shows its code. One shortcut turns every change off.

    They wrote the rules. Rewrite your app.

    Free and open source. It opens Chrome, Edge, Brave, Arc and Vivaldi too, still signed in.

    Every download
    1. Mac with Apple silicon · Mac with Intel · Windows · Linux
    2. Morse isn’t signed yet. The first time on a Mac: System Settings, Privacy & Security, Open Anyway. On Windows: More info, then Run anyway.
    3. Working on Morse? The developer guide.