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Court records platforms in United States:Which are searched most?

In September 2026, CourtListener was the most searched among court records platforms in United States, with an estimated 18.1K branded searches and 45.9% estimated Share of Search within this set.

Share of Search, September 2026
  1. CourtListener45.9%
  2. PACER20.1%
  3. Trellis13.7%
  4. UniCourt11.2%
  5. Lex Machina9.1%

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Share of SearchLeaderboard

Compare the platforms used to search court records. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.

Share of Search among court records platforms in United States, by month

Share of Search by month for CourtListener, PACER, Trellis, UniCourt, Lex Machina. The figures are in the table below the chart.

View monthly share of search table
MonthCourtListenerPACERTrellisUniCourtLex Machina
Oct 202527.5%31.8%18.4%12.3%10%
Nov 202517%59%11.4%7.6%5%
Dec 202520.9%49.6%14%9.3%6.2%
Jan 202622%51.5%12%8%6.5%
Feb 202633.4%36.3%12.2%10%8.1%
Mar 202628.8%37.9%15.8%10.5%7%
Apr 202624.1%46.7%13.2%8.8%7.2%
May 202637.2%27.6%16.7%11.1%7.4%
Jun 202643.6%16.9%15.9%13%10.6%
Jul 202641%13.6%18.3%15%12.2%
Aug 202641.2%18.7%15%15%10%
Sep 202645.9%20.1%13.7%11.2%9.1%

This month’s ranking, September 2026

  1. 1.CourtListener

    45.9%

    Held 1st. 18.1K estimated branded searches, +22.3% vs prior month. Share +4.7 points.

  2. 2.PACER

    20.1%

    Held 2nd. 7.9K estimated branded searches, +17.9% vs prior month. Share +1.4 points.

  3. 3.Trellis

    13.7%

    Held 3rd. 5.4K estimated branded searches, 0% vs prior month. Share -1.3 points.

  4. 4.UniCourt

    11.2%

    Held 4th. 4.4K estimated branded searches, -18.5% vs prior month. Share -3.9 points.

  5. 5.Lex Machina

    9.1%

    Held 5th. 3.6K estimated branded searches, 0% vs prior month. Share -0.9 points.

Compare search popularity between leading brands

Which brand is most popular in search among court records platforms in United States?

In September 2026, CourtListener was the most searched among court records platforms in United States, with an estimated 18.1K branded searches and 45.9% estimated Share of Search within this set. PACER is in 2nd place, 25.9 percentage points behind at 20.1% Share of Search.

United States court records platforms, last 12 months ending September 2026
BrandShare of SearchPeakLowRank
CourtListener27.5% → 45.9%45.9%Sep 202617%Nov 20252nd → 1st
PACER31.8% → 20.1%59%Nov 202513.6%Jul 20261st → 2nd
Trellis18.4% → 13.7%18.4%Oct 202511.4%Nov 20253rd
UniCourt12.3% → 11.2%15%Aug 20267.6%Nov 20254th
Lex Machina10% → 9.1%12.2%Jul 20265%Nov 20255th

Each finding as a sentence

  • Across the 12 months ending September 2026, CourtListener’s estimated Share of Search among court records platforms in United States increased from 27.5% to 45.9%.
  • Across the 12 months ending September 2026, PACER’s estimated Share of Search among court records platforms in United States decreased from 31.8% to 20.1%.
  • Across the 12 months ending September 2026, Trellis’ estimated Share of Search among court records platforms in United States decreased from 18.4% to 13.7%.
  • Across the 12 months ending September 2026, UniCourt’s estimated Share of Search among court records platforms in United States decreased from 12.3% to 11.2%.
  • Across the 12 months ending September 2026, Lex Machina’s estimated Share of Search among court records platforms in United States decreased from 10% to 9.1%.
  • Across the 12 months ending September 2026, CourtListener’s estimated Share of Search among court records platforms in United States peaked at 45.9% in September 2026 and was lowest at 17% in November 2025.
  • Across the 12 months ending September 2026, PACER’s estimated Share of Search among court records platforms in United States peaked at 59% in November 2025 and was lowest at 13.6% in July 2026.
  • Across the 12 months ending September 2026, Trellis’ estimated Share of Search among court records platforms in United States peaked at 18.4% in October 2025 and was lowest at 11.4% in November 2025.
  • Across the 12 months ending September 2026, UniCourt’s estimated Share of Search among court records platforms in United States peaked at 15% in August 2026 and was lowest at 7.6% in November 2025.
  • Across the 12 months ending September 2026, Lex Machina’s estimated Share of Search among court records platforms in United States peaked at 12.2% in July 2026 and was lowest at 5% in November 2025.
  • Across the 12 months ending September 2026, CourtListener rose from 2nd to 1st among court records platforms in United States.
  • Across the 12 months ending September 2026, PACER fell from 1st to 2nd among court records platforms in United States.

How did search popularity change for United States court records platforms in September 2026?

  1. In September 2026, CourtListener gained estimated Share of Search among court records platforms in United States, from 41.2% to 45.9%.

  2. In September 2026, PACER gained estimated Share of Search among court records platforms in United States, from 18.7% to 20.1%.

  3. In September 2026, UniCourt lost estimated Share of Search among court records platforms in United States, from 15% to 11.2%.

  4. In September 2026, Trellis lost estimated Share of Search among court records platforms in United States, from 15% to 13.7%.

  5. In September 2026, Lex Machina lost estimated Share of Search among court records platforms in United States, from 10% to 9.1%.

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