File Tools & Developer Utilities
Practical tools that stay out of your way
Browser-based file tools and developer utilities. No uploads, no accounts, no waiting.
File & Document Tools
Edit, merge, split, convert, and compress files directly in your browser. No uploads, no sign-in.
Developer Hub
150+ error explanations across Git, npm, Node.js, Python, TypeScript, and Docker. Paste an error, get an answer.
More developer tools coming soon.
How it works
Choose a tool
Pick the task you need. Each tool is purpose-built for one job with no setup required.
Upload your file
Drag or click to load your file. It's read directly by your browser — never sent to a server.
Download your result
Make your edits and export. The result downloads directly to your device. Nothing is stored.
Why ProjectStack
Local processing
All operations run in your browser. Files never leave your device.
No uploads
Nothing is transmitted to any external server — sensitive documents stay private.
No sign-in
No accounts, no email verification, no setup. Open and start working immediately.
Fast results
Processing runs on your device. Most operations complete in seconds.