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Every emulator runs the same suite as live AWS DynamoDB in eu-west-2, the 100% ground truth at the top. DynamoDB's behaviour can vary across regions, so the baseline is one named region. The percentage is correctness over the operations a target implements; the scope tag by its version (its unsupported count, or “full coverage”) shows how much of the suite it attempts, so a high score on a narrow surface reads as narrow. The arrow shows movement since the previous run a target was tested in.

95%+ 75–95% under 75% ▲ rose ▼ fell
Biggest moves: Ministack +0.1pp rose 0.1 percentage points
  1. DynamoDB
    live (AWS) full coverage
    100% ground truth
    Tier 1 100%
    Tier 2 100%
    Tier 3 100%
  2. Dynoxide
    0.11.3 14 unsupported ; covers 98.4% of the suite
    100.0% 0.0pp unchanged
    Tier 1 100.0%
    Tier 2 100.0%
    Tier 3 100.0%
  3. Ministack
    27304b7b6d09 full coverage
    86.6% +0.1pp rose 0.1 percentage points
    Tier 1 91.0%
    Tier 2 81.9%
    Tier 3 82.0%
  4. ExtendDB
    v0.1.1 43 unsupported ; covers 95.1% of the suite
    86.0% 0.0pp unchanged
    Tier 1 85.0%
    Tier 2 89.3%
    Tier 3 86.4%
  5. Floci
    4f69631e5601 9 unsupported ; covers 99.0% of the suite
    84.7% 0.0pp unchanged
    Tier 1 91.7%
    Tier 2 77.4%
    Tier 3 77.2%
  6. LocalStack
    2026.6.2 8 unsupported ; covers 99.1% of the suite
    84.0% 0.0pp unchanged
    Tier 1 93.0%
    Tier 2 87.8%
    Tier 3 67.3%
  7. DynamoDB Local
    d89f8fcc6b1a 13 unsupported ; covers 98.5% of the suite
    82.7% 0.0pp unchanged
    Tier 1 91.7%
    Tier 2 84.5%
    Tier 3 66.9%
  8. Dynalite
    4.0.0 68 unsupported ; covers 92.2% of the suite
    75.2% 0.0pp unchanged
    Tier 1 91.3%
    Tier 2 12.6%
    Tier 3 68.8%

Why this exists →

What the conformance suite measures, and why "works with the AWS SDK" isn't the same as matching DynamoDB.

Browse past runs →

Step back through every recorded run to see how each emulator's conformance has shifted over time.