JetValidator vs AJV Benchmarks

Executive Summary

At a Glance

Compilation Performance

JetValidator Avg 1.47ms

AJV Avg 28.29ms

Speedup 19× faster

Validation Wins

Valid Data 36/62 (58%)

Invalid Data 45/62 (73%)

Overall 89/124 (72%)

Compilation Range

Max Speedup 61.6×

Min Speedup 2.8×

Total Schemas 62

🔬 Test Methodology

Platform: Ubuntu Linux

Warmup: 1,000 iterations

Benchmark: 10,000 iterations

Runs: 30 per benchmark

Batch size: 1,000 ops

Date: 2026-01-26

Compilation Performance

Schema Compilation Speed

JetValidator's code generation approach delivers dramatically faster schema compilation — critical for serverless, CLI tools, and hot reloading scenarios.

📦 Real-World Schemas

Schema	JetValidator	AJV	Speedup
packageJson	6.53ms	57.13ms	8.7×
tsconfigJson	1.66ms	44.04ms	26.5×
openApiPath	5.16ms	35.54ms	6.9×
jsonResume	4.63ms	41.23ms	8.9×
geoJson	1.12ms	34.48ms	30.8×
awsCloudFormation	1.20ms	14.84ms	12.4×
graphqlSchema	1.19ms	18.11ms	15.2×

🎯 Features

Schema	JetValidator	AJV	Speedup
simpleTypes	0.67ms	12.42ms	18.5×
stringConstraints	3.06ms	12.84ms	4.2×
numericConstraints	1.19ms	23.13ms	19.4×
arrayOperations	1.44ms	18.07ms	12.5×
objectValidation	4.47ms	12.60ms	2.8×
composition	3.65ms	21.18ms	5.8×
conditionals	2.13ms	45.36ms	21.3×

📐 Formats

Schema	JetValidator	AJV	Speedup
regexFormats	0.68ms	20.28ms	29.8×
functionFormats	1.53ms	36.74ms	24.0×
mixedFormats	2.32ms	22.00ms	9.5×
integerFormats	1.55ms	12.28ms	7.9×

💪 Stress Tests

Schema	JetValidator	AJV	Speedup
deepNesting	1.09ms	16.51ms	15.1×
wideObject	1.61ms	19.93ms	12.4×
largeEnum	0.65ms	19.89ms	30.6×
complexRefs	3.03ms	22.12ms	7.3×

📊 Scale Tests (Top Performers)

Schema	JetValidator	AJV	Speedup
refs500Times	0.69ms	42.50ms	61.6×
object1000Props	0.66ms	39.32ms	59.6×
mixedFormats100Items	0.71ms	40.06ms	56.4×
complexPatterns	0.73ms	40.02ms	54.8×
array10KItems	0.51ms	26.15ms	51.3×

Validation Performance

Runtime Validation Speed

Category Scores

Real-World: 6-7 Features: 9-5 Formats: 6-2 Stress: 5-3 Composition: 12-4 Complexity-Formats: 17-2 Patterns: 9-1 Scale-Arrays: 7-1 Scale-Objects: 7-1 Scale-Refs: 8-6

📦 Real-World

JetValidator: 6

AJV: 7

Schema	Jet Valid	AJV Valid	Winner	Jet Invalid	AJV Invalid	Winner
packageJson	643K	714K	AJV	2.92M	4.44M	AJV
tsconfigJson	4.84M	6.18M	AJV	3.82M	7.03M	AJV
openApiPath	803K	1.14M	AJV	11.31M	9.86M	Jet
jsonResume	330K	554K	AJV	5.14M	2.21M	Jet
geoJson	3.73M	4.93M	AJV	9.70M	8.04M	Jet
awsCloudFormation	3.75M	3.36M	Jet	11.91M	9.32M	Jet
graphqlSchema	2.51M	2.52M	Tie	8.03M	5.75M	Jet

🎯 Features

JetValidator: 9

AJV: 5

Schema	Jet Valid	AJV Valid	Winner	Jet Invalid	AJV Invalid	Winner
simpleTypes	21.07M	13.48M	Jet	9.15M	11.76M	AJV
stringConstraints	1.08M	1.38M	AJV	3.49M	7.43M	AJV
numericConstraints	26.93M	14.79M	Jet	15.64M	7.57M	Jet
arrayOperations	2.81M	2.42M	Jet	4.77M	6.79M	AJV
objectValidation	3.66M	3.42M	Jet	7.01M	9.61M	AJV
composition	3.70M	2.93M	Jet	5.04M	3.43M	Jet
conditionals	11.83M	8.27M	Jet	10.94M	1.99M	Jet

🔗 Complexity-Composition

JetValidator: 12

AJV: 4

Schema	Jet Valid	AJV Valid	Winner	Jet Invalid	AJV Invalid	Winner
deepAllOf	24.18M	17.91M	Jet	18.80M	13.34M	Jet
deepAnyOf	4.43M	4.29M	Jet	9.48M	4.60M	Jet
deepOneOf	3.62M	4.61M	AJV	6.16M	4.03M	Jet
mixedComposition	711K	867K	AJV	10.75M	7.24M	Jet
complexNot	18.50M	8.75M	Jet	18.31M	5.36M	Jet
multiLayeredComposition	4.75M	2.66M	Jet	6.09M	4.77M	Jet
wideComposition	3.48M	3.96M	AJV	5.91M	1.64M	Jet
recursiveComposition	3.49M	4.63M	AJV	7.52M	9.84M	AJV

Performance Highlights

Where Each Validator Shines

🏆 JetValidator Dominates (>50% faster)
                        conditionals (invalid)
                        +450%
                    
                        nestingAllOfChain (invalid)
                        +349%
                    
                        formatIntensive (invalid)
                        +282%
                    
                        wideComposition (invalid)
                        +260%
                    
                        complexNot (invalid)
                        +242%
                    
                        complexNot (valid)
                        +111%
                    
                        nestingAllOfChain (valid)
                        +101%
                    
                        numericConstraints (valid)
                        +82%

📊 Where AJV Leads
                        object1000Props (invalid)
                        AJV +198%
                    
                        stringConstraints (invalid)
                        AJV +113%
                    
                        deepNesting (invalid)
                        AJV +113%
                    
                        deepNesting (valid)
                        AJV +53%
                    
                        tsconfigJson (valid)
                        AJV +28%

Final Results

Complete Scorecard

Category	JetValidator Wins	AJV Wins	Ties
Real-World	6	7	1
Features	9	5	0
Formats	6	2	0
Stress	5	3	0
Complexity-Composition	12	4	0
Complexity-Formats	17	2	1
Complexity-Patterns	9	1	0
Scale-Arrays	7	1	0
Scale-Nesting	3	1	0
Scale-Objects	7	1	0
Scale-Refs	8	6	0
TOTAL	89	33	2

Overall Win Rate

JetValidator

72%

AJV

27%

Install from npm View on GitHub 📄 Full Benchmark Report

Conclusion

Why Choose JetValidator?

✅ 19× Faster Compilation

Critical for serverless and cold-start scenarios where every millisecond counts.

✅ 72% Overall Win Rate

Competitive or superior validation performance across diverse schema types.

✅ 73% Invalid Detection Wins

Catches bad data fast — essential for security and data integrity.

✅ Modern Architecture

Built for today's high-performance requirements with TypeScript-first design.