codefmt: code formatter and linter

SUMMARY:

format and lint javascript, python, and hubl in zapier, n8n, pipedream, make, and hubspot editors. powered by biome and ruff.

DESCRIPTION:

Format and lint your code directly inside automation platform editors. No copy-paste to VS Code or any other editor required.

Supported platforms:

• Zapier (Code by Zapier action: JavaScript and Python)
• n8n (Code nodes: JavaScript and Python, on n8n.io and n8n.cloud)
• Pipedream (Code steps: JavaScript and Python)
• Make (JavaScript code modules)
• HubSpot Data Hub (custom code actions: JavaScript and Python)
• HubSpot CMS / Design Manager (HubL templates with HTML and CSS contexts, plus module.js)

• Open a code editor on any supported platform.
• Use any of three ways to format:
  • Click the codefmt icon in your browser toolbar, then press "format code". Every lint finding is listed right in the popup.
  • Right-click and select "Format with codefmt" (format only) or "Fix with codefmt" (format plus safe lint fixes plus organize imports).
  • Press Ctrl+Shift+F while your cursor is in the code editor. Same combo on Mac.
• Your code is formatted and written back to the editor instantly.
• A notification appears at the editor with the top 3 lint findings, each showing its line, rule, and message, errors first. Hover it to keep it open, click it or press Esc to dismiss.

• Platform-aware formatting that understands each platform's code structure (async wrappers, globals, return styles, line-width conventions)
• Auto-detects JavaScript, Python, and HubL (including HTML, CSS, and JavaScript contexts inside HubSpot Design Manager)
• Instant lint diagnostics powered by oxlint for JavaScript and Ruff for Python, both Rust tools built for speed
• JavaScript and TypeScript formatting powered by Biome, with Prettier-compatible output
• Python formatting and linting powered by Ruff
• HubL formatting and linting via a custom formatter built for HubSpot CMS templates
• "Fix with codefmt" right-click action that applies safe Biome lint fixes and organize-imports in one pass
• Configurable formatting: print width, quote style, semicolons, trailing commas, bracket spacing, arrow parens, JSX quote style, quote properties, bracket same line, and organize imports
• Sync settings from codefmt.dev with one click. Configure on the web, use in the extension. Settings are kept per platform.
• Keyboard shortcut: Ctrl+Shift+F, active while your cursor sits in the code editor
• Light and dark theme, following your system by default
• Per-tab badge shows "fmt" on supported sites so you know the extension is live
• If Firefox's site access for the extension is off or gets revoked, the popup detects it and offers a one-click fix, and the badge shows "!" instead, so a silent extension is never a mystery
• Works with Monaco and CodeMirror 5 / 6 editors, the engines used by all supported platforms
• 50 KB code size limit per format request
• 30 second request timeout with automatic retry on transient network failures

• No accounts, no cookies, no tracking, no telemetry
• Your formatting preferences are stored locally in your browser only
• When you trigger a format, the code currently in your editor is sent over HTTPS to codefmt.dev/api/format, processed in memory, and returned formatted. Nothing is written to a database, logged, or shared with third parties.
• The extension only runs on the supported platform domains listed above (plus codefmt.dev for the optional settings-sync feature)
• Full privacy policy: https://codefmt.dev/privacy

• Manifest V3 with minimal permissions (activeTab, contextMenus, storage, scripting)
• Only the supported platform domains can trigger format requests
• Every internal message is validated for sender identity and origin before any network call
• Hardened content security policy on the extension pages
• No remote code execution. All scripts are included in the extension package and are plain, human-readable JavaScript with no minification or build step.

• Biome (biomejs.dev): Rust-based, Prettier-compatible formatter that powers JavaScript and TypeScript output
• oxlint (oxc.rs): a Rust-based JavaScript linter with a familiar rule set
• Ruff (astral.sh/ruff): Rust-based Python formatter and linter used by major Python projects

• Web formatter: https://codefmt.dev
• About and support: https://codefmt.dev/about
• Privacy policy: https://codefmt.dev/privacy