Compare PDFs Online for Free with Diff Guru - Fast, Secure & Accurate
Source: Dev.to
What is Diff Guru PDF Compare?
Diff Guru PDF Compare is a free online tool that allows you to:
- Upload two PDF files
- Instantly compare them
- Highlight added, removed, and modified content
- View clean, visual differences in seconds
No sign‑up. No watermark. No tracking.
Why I Created This Tool
As a developer working frequently with:
- API documentation
- Project proposals
- Legal PDFs
- Client requirement documents
I needed a quick and reliable way to detect changes between versions. Most available tools were either:
- Paid
- Heavy desktop software
- Slow
- Collected user data
So I built Diff Guru with three core principles:
- Speed
- Privacy‑first
- Zero friction
Privacy Comes First
Your files:
- Are processed securely
- Are not stored
- Are not logged
- Are never shared
This makes Diff Guru safe even for confidential business documents.
Features
- 100 % free to use
- No login required
- Online comparison
- Fast processing
- Clean difference highlighting
- Web‑based (no software install)
- Works on desktop and mobile
Who Can Use This?
Diff Guru PDF Compare is useful for:
- Developers checking document changes
- QA teams reviewing reports
- Writers comparing drafts
- Lawyers comparing contracts
- Students validating assignments
- Businesses verifying invoice changes
How to Use PDF Compare on Diff Guru
- Open the tool.
- Upload your old PDF.
- Upload your new PDF.
- Click Compare.
- View highlighted differences instantly.
That’s it.
More Tools on Diff Guru
Diff Guru offers additional comparison utilities:
- Text Diff –
- JSON Diff –
- Image Compare –
- Excel & CSV Compare –
It’s slowly becoming a full comparison toolkit for developers and content creators.
Final Thoughts
Small tools solve big daily problems. If you ever found yourself thinking, “Why is it so hard to compare two PDFs?” you now have a clean solution.
PDF Compare Tool:
If you try it, I’d genuinely love your feedback.