Catch the proposal they silently rejected.

Clausul audits the draft you received for untracked drift, and tells you what happened to every proposal you sent: accepted, rejected, modified, or carried forward.

Audit a redline

Free to try. No credit card required.

The audit

Tracked, untracked, and your proposals, separated.

clausul

Redline Audit

Acme Corp / Jane Smith Consulting Agreement

The counterparty accepted your fee increase to $75,000 but rejected your 60-day notice proposal, modified your warranty extension to 18 months, and added an untracked three-year post-termination confidentiality obligation. The counterparty also added a tracked IP carve-out preserving their pre-existing materials. Your governing-law swap from Delaware to California is still pending.

1 untracked change detected
6 changes Aa
⋯

3. TERM AND TERMINATION

Either party may terminate this Agreement upon 60 days 30 days prior written notice to the other party.

⋯

5. CONFIDENTIALITY

Each party shall maintain the confidentiality of proprietary information disclosed by the other party for a period of three (3) years following termination of this Agreement.

§ 5 Critical
Confidentiality duration added (untracked)

A three-year post-termination confidentiality clause was added with Track Changes off. Previously open-ended.

Tap any highlighted clause to view its card.

How it works

Upload. Audit. Respond.

Two .docx files. An audit in your browser. No install, no IT ticket.

01

Upload

The version you sent and the draft you received back. Two .docx files.

02

Audit

Surface tracked changes, untracked drift, and what happened to every proposal you sent. Each finding has a note linked to the exact edit.

03

Download

Download the received draft with the counterparty's markup intact, then mark up your response in Reply.

Features

Word Compare lists differences. Clausul reconciles the redline.

Untracked drift, surfaced.

The edits the counterparty didn't track don't show up in the redline. Clausul reconciles the received draft against the version you sent and flags every silent edit, so the clean redline can't hide what changed underneath.

Your proposals, tracked end-to-end.

A counterparty can silently drop a proposal you made and the redline shows nothing. Clausul classifies every proposal you sent: accepted, rejected, modified, or unresolved, so silent rejections can't slip through.

Word-native download.

Download the received draft with the counterparty's tracked-change markup preserved verbatim. No rewriting, no proprietary viewers. Open it in Word and respond the way you always have.

Keyboard-first navigation.

Move between changes with j/k or arrow keys. Filter by severity. Read-pace review, not click-pace.

Security

Your documents are confidential.
We treat them that way.

Encryption by default

TLS 1.2+ in transit. AES-256 at rest. End-to-end.

No model training on your data

Your documents are not used to train foundation models. Full stop.

Auto-delete after 14 days

Documents are automatically deleted after 14 days. Nothing lingers.

Pricing

Simple pricing

Start free. Upgrade when you're ready.

Free trial

$0

14 days, no credit card

  • Full redline with tracked changes
  • AI change summaries
  • Word export
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Annual

$20.75/mo

$249 per user, billed yearly

Save $99/year
  • Unlimited audits
  • AI change summaries
  • Exportable redlines
  • Auto-delete after 14 days
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Team or firm pricing? Get in touch.

What you're probably asking

Word's Compare produces a merged redline of every difference. It doesn't separate the counterparty's tracked changes from the edits they made silently, and it doesn't tell you what happened to the proposals you sent. Clausul does both, against the same two .docx files Word is comparing.
Litera produces high-accuracy redlines, and it does that well. The differentiation isn't in the redline itself. It's what comes after. Litera shows you a merged redline of every difference. It doesn't separate the counterparty's tracked changes from the edits they made silently, and it doesn't classify what happened to each proposal you sent. Clausul does both. If your firm uses Litera, Clausul runs alongside: Litera produces the redline, Clausul audits it. If your firm doesn't have Litera, Clausul replaces the redline step too, in a browser, without procurement.
An untracked change is an edit the counterparty made to the document without turning Track Changes on. Deliberate ones are rare. Accidental ones are common: paste from a different draft, accept then edit, forget Track Changes was off for a paragraph. The Clausul check (reject every tracked change in the received draft, diff against the version you sent) takes seconds. Even if the answer is "no drift," you've stopped trusting the redline alone.
The reconciliation procedure is deterministic. We reject every tracked change in the received draft and compute a diff against your sent version. Anything left over is byte-for-byte different from what you sent. No LLM is involved in that step, so there is nothing for it to miss or invent. The notes that summarize each finding are LLM-written and labeled as such, and every note links to the exact edit so you can verify it yourself.
Drag two .docx files into the browser. Wait while it runs (under a minute for most contracts). Walk through the findings with j/k, sorted by importance. Filter formatting noise. Export the received .docx with the counterparty's markup preserved verbatim. Mark up your reply in Clausul or in Word.
TLS 1.2+ in transit, AES-256 at rest. Documents auto-delete after 14 days. Customer documents are never used to train foundation models. If you need an SLA, an in-region deployment, or a signed DPA, those are conversations we can have.

Audit the next draft you receive.

Tracked, untracked, and your proposals, separated in seconds.

Audit a redline

Free to try. No credit card required.