Overview
vLex Fastcase is a comprehensive legal research platform formed through the 2023 merger of Fastcase and vLex, and now part of Clio following Clio's acquisition of vLex Group in late 2025. In the US market, the product continues to operate as vLex Fastcase, providing full federal and state case law coverage alongside the international depth of the vLex database. Fastcase built its reputation as the most accessible professional legal research platform, offering bar members free access through most US state bar associations — a significant cost advantage for solo practitioners and small firms. Its relevance-based search algorithm surfaces results by legal importance rather than pure keyword frequency, helping attorneys find controlling authority faster than traditional Boolean-only search. vLex Fastcase's visualization tools — including Authority Check and the Interactive Timeline — help attorneys understand how cases relate to each other graphically, providing research context that citation lists alone cannot convey. These tools are particularly effective for quickly mapping the controlling cases in an unfamiliar area of law. The merger with vLex added international legal research coverage spanning 150+ countries, making the combined platform uniquely valuable for practitioners working on cross-border matters or in jurisdictions where Westlaw and LexisNexis coverage is limited. Vincent AI, vLex's native AI research assistant, generates cited summaries in response to natural language questions. Pricing varies: access through bar association membership is free; standalone subscriptions are available for attorneys without bar-sponsored access.
Key features
Free Bar Member Access
Included with bar membership in 40+ states. Provides full US federal and state case law, statutes, and regulations at no incremental cost. The most accessible legal research database for qualifying attorneys.
US Case Law Database
Comprehensive US federal and state case law going back to early American decisions. Adequate for routine litigation research. Citator functionality included but less robust than KeyCite.
Interactive Timeline
Visual timeline of cases showing how courts have treated a legal issue over time. Helps attorneys quickly understand doctrinal development without reading every case.
Bad Law Bot
Automated citator that flags cases no longer good law. Functional for preliminary checks, but Westlaw KeyCite or Shepard's is recommended for final verification on important matters.
Fastcase AI Sandbox (Premium)
AI research tools on premium tiers including natural-language search, case summarization, and research assistance. Entry-level AI capability without the cost of CoCounsel or Lexis+ AI.
vLex Platform Access
Premium subscribers get access to the vLex platform with international jurisdiction coverage in 120+ countries — significant upgrade from US-only bar access.
Pros and cons
Pros
- Free with membership in 40+ state bars — zero incremental cost for attorneys who qualify
- Full US federal and all 50 state case law databases at no charge through bar access
- Good enough for most routine litigation research tasks without per-search costs
- AI-assisted research tools (Fastcase AI Sandbox) available on premium tiers
- Acquired by vLex — free tier users can upgrade to full vLex international coverage
Cons
- Citator reliability is below Westlaw KeyCite and Shepard's — not recommended as the sole citator for high-stakes brief filing
- Secondary sources and treatises are thin compared to premium platforms
- Free bar access tier has limited secondary sources and analytics features
- Interface is functional but dated compared to Westlaw or Bloomberg Law
- vLex acquisition has caused some interface inconsistency as platforms merge
Pricing
30-day free trial — no credit card required.
Pricing current as of May 2026; verify with vendor before purchasing.
Who it's best for
Best fit for
- Solo and small firm attorneys who qualify for free bar member access
- Attorneys doing routine research where Westlaw's editorial depth is not required
- New lawyers building research habits before their firm provides access to premium platforms
- Attorneys who need a free backup research tool alongside a primary premium subscription
Not a fit for
- High-stakes appellate litigators who need KeyCite-level citator reliability (use Westlaw)
- Transactional attorneys needing secondary sources and deal analytics (use Bloomberg Law)
- International practices needing multi-jurisdiction coverage (upgrade to full vLex subscription)
Frequently asked questions
Basic Fastcase (now vLex Fastcase) is free with membership in 40+ state bar associations. Check your state bar website to confirm access. Premium tiers with additional features require a paid subscription.
For routine litigation research, yes. For high-stakes appellate work or citation-critical briefs, supplement with Westlaw KeyCite or Shepard's verification. Fastcase's Bad Law Bot is a preliminary check, not a replacement for the premium citators.
Fastcase was acquired by vLex in 2021. It now operates as vLex Fastcase. State bar partnerships have continued; attorneys who had free bar access to Fastcase now access it through the vLex Fastcase brand.
Westlaw is significantly more comprehensive: deeper editorial annotations, KeyCite citator, secondary sources, and AI tools. Fastcase is adequate for routine research at no cost to bar members. For complex litigation, Westlaw is the professional standard.
Yes — Bad Law Bot flags cases no longer good law. It is adequate for preliminary checks but is not equivalent to Westlaw KeyCite or LexisNexis Shepard's for citation verification on important matters.