JSON Path Evaluator
Query and extract data from JSON using JSONPath expressions. Perfect for developers working with complex JSON structures and APIs.
JSON Query Tool
Query JSON data using JavaScript-like expressions. Filter, search, and transform JSON objects with ease.
JSON Data
Query Expression
Use JavaScript-like syntax to query JSON
Loading examples based on your JSON data...
Query Results
Query Successful No Results Query Error
0
Results Found
0
ms
0
Data Size
Original Items:
0
Filtered Items:
0
Success Rate:
100%
Query Type:
Filter
Memory Used:
0 KB
Complexity:
Low
Query results will appear here after executing a query.
Why Use JSON Query Tool?
Advanced Filtering
Filter JSON data using JavaScript-like expressions with conditional logic and comparisons.
Data Transformation
Transform, sort, and manipulate JSON data with powerful array methods and functions.
Smart Searching
Search through complex JSON structures with pattern matching and deep property access.
Data Analysis
Analyze JSON data with aggregation, counting, and statistical operations.
How Our JSON Query Tool Works
Our JSON Query Tool allows you to write JavaScript-like expressions to query and manipulate JSON data directly in your browser.
Query Capabilities:
- Filtering - Filter arrays based on conditions:
data.filter(item => item.price > 100) - Mapping - Transform data structure:
data.map(item => ({name: item.name, id: item.id})) - Sorting - Sort data by any property:
data.sort((a,b) => b.price - a.price) - Finding - Find specific items:
data.find(item => item.id === 5) - Aggregation - Calculate sums, averages:
data.reduce((sum, item) => sum + item.price, 0) - Grouping - Group data by properties
Available Methods:
.filter()- Filter array elements.map()- Transform array elements.sort()- Sort array elements.find()- Find first matching element.findIndex()- Find index of element.reduce()- Reduce array to single value.some()- Check if any element matches.every()- Check if all elements match.includes()- Check if value exists
JSON Query FAQ
You can write JavaScript-like expressions including:
- Array methods: filter, map, sort, reduce, find
- Conditional logic: if/else, ternary operators
- Mathematical operations: +, -, *, /, %
- Comparison operators: ==, ===, !=, !==, >, <, >=, <=
- Logical operators: &&, ||, !
- String operations: includes(), startsWith(), endsWith()
- Object property access: dot notation and bracket notation
Yes, our tool uses a sandboxed evaluation environment that restricts access to unsafe JavaScript APIs. By default, it runs in "Safe Evaluation" mode which only allows data manipulation operations. You can switch to "Direct Execution" mode for more flexibility, but we recommend using Safe mode for untrusted data.
You can access nested properties using dot notation or bracket notation:
item.address.city- Dot notation for nested objectsitem['address']['city']- Bracket notationitem.tags[0]- Array element accessitem.metadata?.optionalField- Optional chaining (if supported)
data in the query context.
Yes, you can:
- Copy queries to clipboard using the "Copy Query" button
- Save queries in your browser's local storage
- Bookmark queries with parameters
- Export queries as JSON files
The tool is optimized for performance:
- Uses efficient JavaScript execution
- Limits execution time to prevent browser freezing
- Shows execution time and memory usage
- Handles up to 10,000 items efficiently
- For larger datasets, consider using more specific queries