The text says 'World's 50 Best Cat Litters' in an outlined font with no background color.
THE LIST 2026

Who we are

A woman with long dark hair looking through a laboratory microscope in a laboratory setting with shelves of glassware and scientific equipment in the background.

worldsbestlitters.com is run by a team of scientists, with backgrounds across biology, chemistry, and chemical engineering, who share one thing outside the lab: a love of cats. We built this site to bring a real, scientific standard to an industry that mostly runs on marketing, and to give readers a clear, objective view of how each litter truly performs. We buy every litter ourselves, measure each one the same way, and report what the instruments show, not what the bag claims.

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and diagonal lines.

    We buy what we test.

    Every litter is bought at retail, like any shopper. Free samples are disclosed and never change a score.

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and half circle lines.

    Brands cannot pay for placement.

    No one can buy a rank, a badge, or a softer review. Strip out the commercial links and the ranking is identical.

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and circle lines.

    Measured, not guessed.

    We score with instruments, a scale, a gas meter, a sieve, under fixed conditions we can repeat.

  • Geometric drawing of an outline square with sections divided by vertical, horizontal, and diagonal lines.

    Fact, not opinion.

    Scores come from what we measured. Where we offer a judgement, we flag it as ours.

  • "We are scientists who happen to love cats. Tired of litter reviews that were really adverts, we put every brand through the lab instead. The cats do not care who paid. Neither do we."

    — Founder of worldsbestlitters.com