Contracts · Comparative analysis

Legal Document Comparator

Upload two versions of a contract and get in seconds a detailed analysis of what has changed, what risks have been introduced, and what clauses are new.

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What does the comparator analyze?

Beyond a simple text diff: legal analysis of changes and their real impact

Modified clauses

Detects every text change in existing clauses, with visual marking of additions and deletions

New clauses

Identifies clauses added that did not exist in the previous version

Introduced risks

Evaluates whether the changes create new obligations, liabilities or imbalances

Economic conditions

Detects changes in price, deadlines, interest, penalties and payment conditions

Resolution mechanisms

Changes in arbitration, mediation, jurisdiction and applicable law

Executive summary

Summary of the most relevant changes ordered by impact

Most common use cases

Review a contractual counterproposal before signing

Compare the contract sent vs. signed to detect last-minute changes

Analyze lease contract modifications at renewal

Review updates to supplier general terms and conditions

Compare versions of articles of association before and after a shareholders meeting

Detect changes in insurance policies at annual renewal

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Frequently asked questions

What types of documents can I compare?

You can compare any type of legal document: lease agreements, commercial contracts, public deeds, insurance policies, employment contracts, non-disclosure agreements, articles of association, and any other document in text or PDF format.

What does Lexiel's comparator analyze?

The comparator identifies: modified or deleted clauses, new obligations and risks, changes in economic conditions (price, deadlines, interest), modifications to liabilities and guarantees, and changes in dispute resolution mechanisms.

Does the comparator detect unfair terms in the changes?

Yes. In addition to detecting differences, Lexiel evaluates the changes in context: it flags whether the modifications introduce potentially unfair terms (TRLGDCU), liability-limiting clauses, or significant imbalances between the parties.

Can I compare a contract in Spanish with a version in another language?

Currently the comparator is optimized for documents in Spanish. Comparison between languages requires prior translation. For bilingual documents (English/Spanish), it works best when comparing versions in the same language.