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massCode

Anton Reshetov · A macOS developer workspace for organizing code snippets and notes, making HTTP requests, and keeping related work together.

CaskDeveloper ToolsApple silicon · Intel
Homepage
From homebrew/cask
30-day installs56#918 in App
1-year installs512Last 365 days
Latest version6.2.12 days ago · Oct 12
Download size234MBarm64 / x86_64 · dmg
Release cadenceWeekly5 releases in 30 days

massCode is a Developer Tools app for Mac.

About

massCode is a developer workspace for keeping code snippets, notes, and HTTP requests together. It also includes tools for drawings, calculations, and other developer tasks. The Homebrew cask installs the macOS app.

  • Organize code snippets in folders and use tags to find useful code.
  • Create notes and connect them with snippets and API requests; a graph view helps explore those links. Notes can also hold tasks with statuses, priorities, and due dates.
  • Save HTTP requests and run them in sequence as workflows, passing values between steps and inspecting results.
  • Use built-in developer tools, including JSON comparison, encoders, converters, generators, and a math notebook.
  • Keep workspace files accessible outside the app: the product describes code, notes, and requests as Markdown, and drawings as Excalidraw files. Its website also describes syncing the workspace folder with services or tools such as iCloud, Dropbox, Syncthing, or Git.

Install with brew install --cask masscode, then open massCode from Applications. This cask is for macOS. The app’s website describes the workspace as local-first and usable offline.

Sources: massCode · Homebrew cask

New What’s new in 6.2.1 Oct 12 · OpenNavo editorial

  • ChangesRestores trusted code; there are no other changes from 6.1.0.
See all 40 releases

Install and uninstall

Homebrew installs the app in your Applications folder.

Install without Homebrew

Download the file Homebrew uses for your chip: Apple siliconIntel

SHA-256 only checks that the download is complete; it is not a security certification. See the SHA-256 and download address

Uninstall command
$ brew uninstall --cask masscode

A regular uninstall removes the app and keeps its settings and caches.

Deep clean (optional)
$ brew uninstall --zap --cask \masscode

--zap also deletes the settings, caches and other files listed in the Homebrew definition. They can include data shared with other apps and cannot be restored, and it does not guarantee that nothing is left.See which files are removed

Facts and sources

Version 6.2.1
Recorded by Homebrew on Oct 12Released by the vendor on Oct 12

Questions

Is massCode safe?

massCode is in Homebrew’s official catalog and has not been disabled. Since September 2026, Homebrew disables apps that fail macOS Gatekeeper checks. When installing, Homebrew checks the download from github.com against its SHA-256 checksum. It was installed 56 times through Homebrew in the last 30 days.

Is massCode open source?

massCode’s source code is public on GitHub (massCodeIO/massCode) under the AGPL-3.0 license.

How do I completely uninstall massCode on a Mac?

Run brew uninstall --cask masscode. To delete its settings and caches as well, run brew uninstall --zap --cask masscode. That also deletes 6 files and folders, including ~/.massCode.

Does massCode run on Apple silicon (M1 and later) Macs?

Yes. Homebrew downloads separate builds for Apple silicon and Intel Macs.

Where does massCode store its settings and data?

Its settings are in ~/Library/Preferences/io.masscode.app.plist. Its data is in ~/.massCode and ~/Library/Application Support/masscode. These locations come from Homebrew’s clean-up list.

What is the latest version of massCode?

The latest version is 6.2.1, added to Homebrew on Oct 12. Run brew upgrade --cask masscode to update it.