Simple Tools for
Everyday Tasks
Beautifully designed, secure tools that respect your privacy.
No uploads. No tracking. Just results.
Why OpenToolBox?
Unlike other tool sites that are riddle with ads and send your data to servers, we prioritize your experience and privacy.
100% Client-Side
Your data never leaves your browser. JSON, images, and code are processed locally.
Blazing Fast
Built on Next.js 15 for near-instant load times and seamless transitions.
Secure & Private
No tracking pixels. No cookies. We respect your privacy and your code.
Featured & New
Hand-picked tools for your daily workflow.
Sign PDF Online
Upload and sign PDF documents. Add signatures to all pages instantly.
Photo Enhancer AI
Enhance photo quality with AI - auto color correction, sharpen, denoise, and upscale images online.
Watermark Remover
Remove watermarks from photos and videos online - AI-powered watermark eraser for images.
Instagram Post Generator
Create realistic fake Instagram posts with custom content.
Invoice Generator
Create professional invoices with custom branding, taxes, and discounts. 100% private.
QR Code Generator
Free QR Code Generator with Logo support. High-quality PNG download.
Featured On
What do you want to do?
Creative Studio
Create viral memes, cinematic quote posts, and professional social assets instantly.
All Studio ToolsBusiness Hub
Generate professional invoices, quotes, receipts, and estimates for your clients.
All Money ToolsAbout OpenToolBox
OpenToolBox is engineered to be the Ultimate Developer Toolbox for modern creators. We believe that simple tasks like formatting JSON, converting images, or generating secure passwords shouldn't require sending your sensitive data to a remote server.
That's why we built this platform with a Privacy-First architecture. Every tool on this site runs 100% in your browser. Whether you are Base64 encoding a confidential API key or resizing a private photo, your data never leaves your device.
OpenToolBox is free, open-source, and constantly improving. If you find these tools useful, help us grow by sharing with your network!