Spot what changed — and what it means — in seconds.
I compare two contract versions clause by clause, flag the substantive changes, and tell you which ones shift risk — so you focus on the changes that matter, not the formatting tweaks.
I compare two versions of any legal document — contracts, deeds, leases, terms of engagement — and produce a structured comparison that separates substantive changes from cosmetic ones. Each flagged change includes a plain-English explanation of the risk shift: who benefits, what exposure changes, and whether it diverges from standard AU market practice. Built for the document types and clause structures Australian lawyers work with daily.
What changes
You receive a marked-up contract back from the other side. 40 pages of tracked changes, most cosmetic. It takes 90 minutes to identify the 6 substantive changes and assess the risk shift on each.
I read both versions in seconds, filter out the cosmetic changes, flag the 6 substantive amendments, and explain the risk shift on each — with a reference to the original clause and the proposed replacement.
From upload to output
Upload both versions
Upload the original and the amended version. PDF, Word, or scanned — I handle file format differences and OCR where needed.
I map the clause structure
I align the two documents clause by clause, even where clause numbering has changed or sections have been moved.
Get the substantive changes
A filtered list of changes that actually shift obligations, risk, or commercial terms — with cosmetic changes (formatting, numbering, defined term consistency) separated out.
Review the risk analysis
Each substantive change includes a plain-English note on who benefits from the change, what risk it creates, and whether the new position is within AU market norms.
What you can do with Quillio contract comparison
- Compare original and amended contracts clause by clause
- Identify substantive changes versus cosmetic edits
- Assess risk shift on each material amendment
- Compare against AU market standard positions
- Track negotiation progression across multiple rounds
- Generate a summary of changes for client reporting
- Flag new indemnity, liability, and termination provisions
- Compare two different templates to standardise firm precedents
A real example
You sent a share purchase agreement to the buyer's solicitor last week. They return it with 85 tracked changes across 60 pages. Your client needs to know the material amendments by tomorrow morning.
Upload the original SPA and the buyer's marked-up version.
In 15 seconds: 85 changes categorised — 71 cosmetic (numbering, defined term consistency, formatting), 14 substantive. The 14 substantive changes are ranked by risk impact. Top items: a new seller warranty on tax compliance with uncapped liability, a reduced indemnity cap from 100% to 50% of purchase price, and a new MAC clause with a lower threshold. Each includes the original clause, the proposed clause, and a risk assessment.
Documents, jurisdictions, and practice areas
Document types
- Commercial contracts
- Share purchase agreements
- Property leases
- Service agreements
- Employment contracts
- Deeds of variation
- Terms of engagement
- Loan facility agreements
Jurisdictions
- NSW
- VIC
- QLD
- WA
- SA
- TAS
- ACT
- NT
- Federal
- NZ
Practice areas
- Commercial
- Property
- M&A
- Banking & Finance
- Employment
- Corporate
Contract Comparison FAQs
How does this differ from Word's tracked changes?
Word shows you every change equally — a comma moved and a liability cap halved look the same. I separate substantive from cosmetic, rank by risk impact, and explain the commercial consequence of each material change. You focus on the 14 that matter, not the 71 that do not.
Can it handle documents where clause numbering changed?
Yes. I align on clause content and structure, not just numbering. If section 8 in the original is now section 10.2 in the amended version, I match them correctly and flag the content change, not the renumbering.
Does it work across multiple negotiation rounds?
Yes. Upload all versions and I track how each clause has evolved across rounds — useful for identifying provisions that keep reverting or positions the other side is consistently pushing.
Can I export the comparison for client reporting?
Yes. The comparison exports as a structured table (Word or PDF) suitable for attaching to a client advice email — substantive changes, risk assessment, and recommended positions in a format clients can follow.
Try it on a current document.
Upload two versions of a current contract and see the comparison in seconds. Free trial, no credit card, no sales call.
Start your free trial