Rubtin

Overview

Rubtin is a privacy-first web utility suite that runs entirely in your browser, offering a range of PDF, image, and developer tools without ever uploading your files to a server. Everything is processed client-side, ensuring your sensitive documents and data stay on your device. It's ideal for developers, designers, and everyday users who need quick, reliable file transformations—like converting, editing, or compressing—without sacrificing security. Whether you're handling contracts, images, or code snippets, Rubtin provides a fast, private, and self-contained alternative to cloud-based utilities.

How to Use

Open Rubtin in your browser, select the tool you need (PDF, image, or developer utility), and upload or paste your file. All processing happens locally on your device, so your data never leaves your computer. Once done, download the result or copy the output directly. No account or installation needed.

Core Features

Use Cases

1. 1 Combining multiple contracts or joining scanned pages into a single PDF safely.
2. 2 Reducing PNG, JPG, and WebP file sizes locally for website speed optimization without data leaks.
3. 3 Validating, formatting, and debugging API payloads instantly using the JSON Formatter.
4. 4 Generating professional business invoices client-side and printing them directly to PDF.
5. 5 Extracting readable text from document scans locally using the OCR Text Extractor.

Frequently Asked Questions