Compare two versions
Upload the old and new document. See visual and textual differences in one place.
Building in private beta — help shape v1
Never miss an important document change again.
Review contracts, proposals, and specs in seconds.
ChangeLens highlights the changes that matter, not just the text that changed.
For lawyers, consultants, freelancers, architects, engineers, and teams who review revised documents.
The problem
Redlines show marks. They rarely tell you what matters.
Most comparison tools highlight text. Professionals still manually hunt for business-critical changes.
- Did the deadline change?
- Did the price or payment terms change?
- Was a clause added, removed, or reworded?
- Was a technical requirement altered?
- Was a drawing or page replaced?
- Was scope removed without you noticing?
The solution
ChangeLens focuses on changes that carry risk.
We are building a document revision assistant — not another generic PDF diff.
Meaningful change summary
Plain-language highlights for deadlines, prices, clauses, and specifications — not just diff noise.
Client-ready reports
Export a concise change summary stakeholders can actually read.
Folder monitoring
PlannedPlanned: watch Drive, Dropbox, or OneDrive folders and get alerted when files change.
Help us build
Do you compare revised PDFs or contracts?
Answer a short survey so we build the right workflow, pricing, and features first.
FAQ
Common questions
No. This is a validation landing page. We are building the first version with professionals who compare revised documents regularly.