Free PDF Tools
That Stay on Your Device
PDFChai is one free PDF suite. Merge, split, compress, convert, edit, sign and protect PDFs right in your browser, with no signup and no uploads.
👋 Who We Are
PDFChai is a free online PDF suite for anyone who works with PDFs: students submitting assignments, job seekers sending CVs, office teams handling contracts and invoices, and anyone who needs a form signed or a file small enough to upload. We are based in GJ, IN, and our goal is simple: give everyone the PDF tools they need, for free, without asking for anything in return.
Most people only need a PDF tool for a minute: to merge two files, shrink a scan for an upload form or turn phone photos into one document. Yet many PDF sites ask you to create an account, cap you at a few tasks a day, add a watermark, or upload your file to their servers first. We thought that was the wrong way round.
So PDFChai became one focused suite of 33 PDF tools where every tool runs inside your browser. Your file is processed on your own device, the result is yours to download, and there is no signup, no paid plan and no watermark.
🎯 Our Mission
Our mission is to make everyday PDF tasks quick, free and private for everyone, with nothing to install, no account to create and no file ever leaving your device.
Always Free
Every PDF tool is free to use, with no paid plans, no credits and no daily limits set by us. Google AdSense ads keep the site running, so you never pay.
Private by Design
Files are processed inside your browser and never uploaded. Passwords you type into Protect PDF or Unlock PDF stay on your device too.
No Upload Wait
Nothing is sent to a server and back, so there is no upload bar and no queue. Speed depends only on your device and the size of your file.
Works Everywhere
Every tool works in a modern browser on desktop, tablet and phone. No app, no plugin, nothing to install.
🛠 Tools We Offer
PDFChai offers 33 free PDF tools in six groups. Each one does one job well, and they all run in your browser.
Organize PDF
Optimize PDF
Convert to PDF
Convert from PDF
PDF Security
Built on Trusted Open-Source Technology
The tools are built on well-known open-source libraries that run directly in your browser: pdf.js to read and display PDFs, pdf-lib to create and change them, qpdf compiled to WebAssembly for password protection and unlocking, mammoth and html2pdf for Word to PDF, and docx for PDF to Word.
Have an idea for a PDF tool we should add? Let us know.
💡 Our Values
Everything we build at PDFChai is guided by four core values.
Free for Everyone
Students, freelancers and small businesses in every country get the same tools, with no budget needed and no features held back.
Transparency
We are open about how PDFChai is funded, what data the site collects and what each tool can't do. No hidden catches, no dark patterns.
Continuous Improvement
We keep improving the PDF tools, fixing bugs and refining output quality, and we welcome suggestions for what to build next.
Privacy by Default
Your PDFs are never uploaded, stored or shared. There is nothing to sign up for, so we hold no user accounts or passwords of any kind.
👤 The Team
PDFChai is an independent project built and maintained by one person from GJ, IN. Every tool, every line of code and every decision about how the site works comes from a wish to build something genuinely useful.
PDFChai Team
Someone who got tired of paying for, signing up for and uploading files to tools that should be simple and free. Builds and maintains every PDF tool on PDFChai and keeps working to make them faster, more reliable and more useful.
📅 Our Journey
PDFChai started small, under the name DebugSpot, and has grown into a focused PDF suite. Here's how we got here.
The site went live as DebugSpot, a small collection of free online tools, built to be fast, clean and free of signups.
More free tools were added across several categories, all free to use with no signup.
The site was rebuilt around PDFs and renamed PDFChai: free tools to organize, optimize, convert, edit and secure PDF files, all running in the browser with no uploads.
Improving speed, reliability and output quality across the suite, and adding new PDF tools people ask for. Still free, still in your browser.
Ready to Work on Your PDF?
Pick a tool and add your file: no signup, no install, no upload.
Get in Touch
Have a question, a PDF tool suggestion or found a bug? We'd love to hear from you.