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WorkCaselex-LexisNexis

Caselex-
LexisNexis

At NimaProject, we worked on Caselex, a legal SaaS platform, designing a clear and credible UX/UI that makes complex legal information easy to navigate. We focused on information architecture, search + filtering, case/list views, and a consistent design system (components, typography, spacing, UI states) to support a responsive web app with clean hierarchy, accessibility-minded layouts, and smooth developer handoff for a production-ready interface.

Project
Lexis Nexis // Caselex Legal Doc Indexing
Year
2022
Industry
Legal Tech
Service
UX/UI Design, Product Design
Our Role
UX Research, Wireframing, UI Design, Design Reviews
Caselex platform — legal research workspace

The Challenge

Researching merger control and antitrust and competition law decisions involves sifting through dense legal documents across various jurisdictions. The Caselex platform provided robust content but had an outdated user experience: search was unclear, filters were difficult to manage, and transitioning between decisions added cognitive strain. On top of that, the timeline of the cases couldn’t be followed through end to end.

Caselex mobile case detail view
Caselex desktop case list view

The Approach

For Caselex, we combined market and user research to understand how legal professionals search, filter, compare, save, and cite cases. These insights shaped clearer UX flows, wireframes, and prototypes, leading to a focused UI with domain-specific filters, scannable results, and richer decision pages, while aligning with LexisNexis standards and preserving Caselex’s own identity.

Project Goals

Advanced Search Filters

Designed a layered filtering experience across every step of the search journey, helping users narrow results by market, jurisdiction, document type, and relevance without losing context.

Case Timeline Mapping

Introduced timeline views for each case, making it easier to understand legal developments, decision history, and how each case evolved over time.

Keyword Highlighting

Added highlighted search keywords within results and decision pages, allowing users to quickly spot relevant information and assess case relevance faster.

Book on a File

Created a new case organisation feature that lets users group citations into dedicated files, helping law firms keep a clear, structured record of research connected to each case.

Caselex search and filters interface
Caselex decision detail page
Caselex design process — market and user research timeline
Caselex design process — wireframing and UI iteration timeline

Key Screens

A brief showcase of the main UX improvements across the Caselex experience, from faster search and advanced filtering to clearer case organisation and decision exploration. The Book on a File flow demonstrates how users can save and group legal references with more structure, while the search history and timeline screens highlight the platform’s focus on traceability, context, and research continuity. Together, these screens present Caselex as a more focused, efficient, and visually refined legal research tool.

Caselex Market Definitions search interface
Caselex results list with keyword highlighting
Caselex decision page mobile view
Caselex case timeline and Book on a File workspace

Outcome

The redesign helped Caselex become a clearer, faster, and more structured platform for legal research, improving the day-to-day workflow for the internal team and making complex case information easier to manage, explore, and present. By strengthening the product experience, refining key research flows, and giving the platform a more scalable visual direction, the project contributed to Caselex’s growth and positioned it strongly ahead of its acquisition by LexisNexis.

Caselex final UI — search and filters
Caselex final UI — mobile case view