How It Works
All our tools run entirely in your browser. Your data never leaves your device.
No Uploads
Your files and text are processed locally. Nothing is sent to any server.
Browser-Based
All processing uses JavaScript, Canvas API, and WebAssembly—right in your browser.
Instant Results
No waiting for server responses. Get results as fast as your device can process.
Works Offline
Once loaded, many tools work without an internet connection.
The Technical Details
Text Processing
Text tools like Word Counter, Case Converter, and Base64 Encoder use JavaScript string methods to analyze and transform text. Your text stays in your browser's memory and is never transmitted anywhere.
Image Processing
Image tools use the HTML5 Canvas API to manipulate images. For advanced formats like HEIC (iPhone photos), we use WebAssembly libraries that run entirely in your browser. Images are processed in memory and can be downloaded directly.
PDF Processing
PDF tools use PDF.js and similar libraries to read and manipulate PDF files in the browser. No PDF content is ever uploaded to a server—everything happens locally.
Developer Tools
Tools like JSON Formatter use built-in JavaScript functions (JSON.parse, JSON.stringify) to validate and format your code. Hash generators use the Web Crypto API for secure, browser-based hashing.
Frequently Asked Questions
Is my data really private?
Yes. We have zero server infrastructure for data processing. Your files and text are processed entirely in your browser using JavaScript. We cannot see your data because it never reaches us.
Do you use cookies or tracking?
We don't use tracking cookies. We may use localStorage to remember your preferences (like dark mode), but this data never leaves your browser.
Can I use these tools for sensitive documents?
Yes. Since all processing happens in your browser, these tools are safe for confidential documents, proprietary code, and personal information.
What are the file size limits?
Limits depend on your device's capabilities. Generally, files up to 50MB work well. Very large files may slow down your browser since processing happens locally.