Bypass Macos File Dialog

    by Fredrik Akerstrom

    2

    Bypass OS-native file upload dialogs in browser automation using JavaScript interception and DataTransfer injection.

    $5

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    Works with the AI tools you already use

    CClaude CodeCCursorCCodex CLIGGitHub CopilotGGemini CLIVVS CodeWWindsurfMManus+14 more

    See it in action

    You say

    Automate the upload of my generated report.csv file. The browser's native file picker is blocking my automation script, so use the DataTransfer injection method to bypass the dialog.

    Your agent does

    Interceptor active. Staging 'report.csv' (2,450 chars). Synthetic File object created via DataTransfer. Assigned to via Object.defineProperty. Dispatching 'change' event {bubbles: true}. Upload successful: React component updated state without OS dialog.

    What you get

    Automate YouTube subtitle uploads without manual Finder interactionInject files into Puppeteer/Playwright scripts when .setInputFiles() failsProgrammatically upload large CSV/JSON datasets to web dashboardsBypass security-restricted file inputs in React and Angular applicationsUpload files (text base not PDF or MP4 etc) to websites without getting blocked when MacOS file upload window appears.

    About this skill

    What it does

    This skill provides a battle-tested programmatic workaround for one of the most persistent hurdles in browser automation: the OS-native file upload dialog. Whether you are using Playwright, Puppeteer, Selenium, or Claude's computer-use, clicking a file upload button typically triggers a macOS, Windows, or Linux file picker that freezes automation and requires manual intervention.

    This developer-centric tool uses a JavaScript interception technique to bypass the native UI entirely. It overrides the HTMLInputElement.prototype.click method to inject file data directly into the browser's DOM using the DataTransfer API, triggering a synthetic change event that web frameworks recognize as a valid user upload.

    Why use this skill

    • Zero Manual Intervention: Fully automates file uploads without getting stuck on system-level popups.
    • Framework Agnostic: Works seamlessly with React, Angular, Vue, Polymer (YouTube Studio), and jQuery.
    • Cross-Platform: Bypasses dialogs on macOS Finder, Windows Explorer, and Linux file managers.
    • Invisible to Apps: Sophisticated injection makes the programmatic upload indistinguishable from a real user action.
    • Reliable Content Staging: Includes specific patterns for handling large text files, binary data via Base64, and multi-file uploads.

    Supported Workflows

    The skill is designed for developers building automated scrapers, content uploaders, or RPA bots. It is particularly effective for complex sites like YouTube Studio or enterprise internal tools where input.value assignment is blocked by security headers.

    testing
    browser-automation
    javascript
    macos-bypass
    playwright
    puppeteer
    python
    rpa

    How to install

    Drop the file into your AI Agent. Works with Claude, Cursor, ChatGPT, and 20+ more.

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    Recently published to Agensi

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    Security scanned

    Verified clean 4 months ago

    Listed4 months ago

    Creator

    F
    Fredrik Akerstrom

    Claude Skills

    16 skills on Agensi

    Freelancer, internet entrepreneur and music producer from Sweden.

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