TextDiff
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LOCAL-FIRST APPLICATION PRIVACY

100% Client-Side Privacy Policy:
Change Browser & It's Gone.

Every App developed by Billionaires Labs does not store any information or send anything to a server. It happens in your browser tab only.

The Billionaires Labs Guarantee

When we established Billionaires Labs, we asked a fundamental question: why should developer utilities, file format tools, or text diff readers require a login or transmit private code samples to cloud databases?The short answer is: they shouldn't.

"Every App Developed by Billionaires Labs does not store any information or send anything to a server. It happens in the user's browser tab only. Change browser and it is gone."

This application, TextDiff, utilizes a sandboxed browser environment to process your datasets. Whether you are diffing a simple 10-line source code patch or a massive 100MB database dump, the files never leave your computer:

  • No Network TransfersThere are absolutely zero outbound server endpoints or file upload API calls. The browser's network inspect panel will confirm that no payloads are sent anywhere.
  • Local Sandbox MemoryWe chunk and cache large files solely inside your local browser database (IndexedDB). They reside under a specific sandbox mapped to your browser window.
  • Multithreaded WASM CoreAll line comparisons, character inline algorithms, and diff visualizers run locally at high speed via WebAssembly compiled straight from Rust.
  • Immediate EvaporationBecause data sits inside the browser's localized state storage, simply loading the page in another browser, opening a private/incognito session, or clearing your cookies destroys the database.

1. No Server Ever

We don't maintain databases on cloud servers to store your source code files or text contents. Zero logs. Zero history.

2. Sandbox Storage

Your files are stored in the browser tab's local database. This storage is completely sandboxed by the browser's strict CORS policies.

3. Instantly Erased

Close the tab, empty cookies, or switch to a new browser window/application, and all files disappear forever.

How to verify this yourself?

If you are a developer, we encourage you to audibly verify our privacy guarantee using standard browser Developer Tools:

  1. Right click anywhere on the page and select Inspect.
  2. Navigate to the Network tab. Trigger a massive 100MB comparison and notice that zero HTTP network calls are fired. All processing remains idle.
  3. Navigate to the Application (or Storage) tab. Under IndexedDB, expand `AntigravityDB`. You will see the chunks split cleanly inside your own local browser storage!

Zero Tracking. Zero Uploads. Just Performance.

We are committed to building a new standard of privacy-first developer utilities. Thank you for diffing securely with TextDiff.

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