Cross-language speed comparison

Comparing shiny_json_logic (Ruby), shiny/json-logic-php (PHP) and shiny-json-logic-crystal (Crystal) — all 100% spec compliant, same test suite. Linux results only for a fair comparison.

Speed Over Time (ops/sec)

Latest Comparison

Benchmark Mode

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All Tests — official JSON Logic tests

Each gem is run against all official tests. Speed and memory are measured on each gem's own test run. Use this to evaluate spec compliance.

Performance Over Time

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Visual Comparison

Detailed Results

All Ruby versions All platforms All compilers

Gem	Version	Pass Rate	Speed (ops/s)	Memory (MB)

Speed and memory are averages across 0 test runs. Click column headers to sort.

Key Insights

100% Test Compliance

shiny_json_logic is the only Ruby gem that passes all official JSON Logic tests from the json-logic org.

Fastest on Every Ruby Version

shiny_json_logic wins all 18/18 Linux benchmark runs across every Ruby version tested (2.7 through 4.0), with and without YJIT. Margins range from +9% to +117% faster than the next best gem.

Ruby 2.4+ Support

Unlike competitors that require Ruby 3.0+, shiny_json_logic works on Ruby 2.4, supporting legacy applications.

Transparent Methodology

All benchmark code is open source. Run them yourself to verify.

Performance Over Time

Detailed Results

All PHP versions All platforms

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Package	Version	Pass Rate	Speed (ops/s)	Memory (MB)

Averages across 0 test runs.

Key Insights

36% More Compliant

shiny/json-logic-php passes 99.8–100% of official JSON Logic tests. jwadhams/json-logic-php — the original — only passes ~64%, failing 216 tests.

Two Decode Modes

Supports both arrays and stdClass decode modes. In stdClass mode, shiny/json-logic-php achieves a perfect 601/601 pass rate.

Transparent Methodology

All benchmark code is open source. Run them yourself to verify.

Only one Crystal implementation

shiny-json-logic-crystal is the only known Crystal JSON Logic library with full spec compliance. This tab shows its raw performance across Crystal versions and platforms. See the Shiny Family tab to compare it against Ruby and PHP.

Performance Over Time

Detailed Results

Crystal version	Platform	Pass Rate	Speed (ops/s)

JSON Logic Benchmarks

Speed Over Time (ops/sec)

Latest Comparison

Benchmark Mode

Performance Over Time

Visual Comparison

Detailed Results

Key Insights

100% Test Compliance

Fastest on Every Ruby Version

Ruby 2.4+ Support

Transparent Methodology

Performance Over Time

Detailed Results

Key Insights

36% More Compliant

Two Decode Modes

Transparent Methodology

Performance Over Time

Detailed Results

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