Query Tools - Online Data Extraction and Filtering

Access 18 online query tools for data extraction, filtering, and transformation. Process files securely on our servers with automatic deletion after 6 hours.

Our query tools enable you to extract, filter, and manipulate data from various formats directly in your browser. Whether you are working with SQL, JSONPath, XPath, or URL parameters, these 18 utilities streamline complex data retrieval tasks without requiring local software installation.

18 Tools

Developer & Web

API Request Code Snippet Generator

Generate cURL and common language code snippets from a request URL, method, headers, query parameters, and body

Data & Tables

CSV Filter

Filter CSV data by column values with multiple conditions and operators. Supports 12 filter operators including equals, contains, greater_than, less_than, and empty value checks. Additional Filters examples: [{"column": "age", "operator": "greater_than", "value": "25"}] [{"column": "status", "operator": "equals", "value": "active"}, {"column": "score", "operator": "greater_equal", "value": "80"}] [{"column": "name", "operator": "contains", "value": "john"}, {"column": "email", "operator": "is_not_empty"}]

Developer & Web

DNS Query Tool

Query DNS records and domain resolution information including A, AAAA, MX, TXT, NS, and CNAME records

Conversion & Encoding

GraphQL to JSON Converter

Convert GraphQL query or response data to JSON format

Data & Tables

JSON Path Extractor

Query JSON with JSONPath or JMESPath-style expressions, inspect matched paths, and highlight extracted values in the original document

Conversion & Encoding

JSON Pointer Tool

Navigate and extract values from JSON using JSON Pointer (RFC 6901)

Conversion & Encoding

JSON to GraphQL Converter

Convert JSON data to GraphQL query format

Data & Tables

JSONata Query & Transform Studio

Preview JSONata-style queries and transformations, compare results across sample payloads, and export the transformed output as JSON, CSV, YAML, or Markdown

Developer & Web

JSONPath Query Tool

Query arbitrary JSON with JSONPath expressions, preview matches, switch output modes, and save reusable query templates

Science & Education

Scientific Constants Query

Search and display scientific constants with customizable language and output format

SQL Performance Analyzer

Analyze SQL queries for potential performance issues

Developer & Web

SQL Query Builder

Build simple SQL queries visually

Developer & Web

URL Parameter Builder

Build and construct URLs with parameters by adding query strings, hash fragments, and path segments

Developer & Web

URL Parameter Extractor

Extract and parse parameters from URLs including query strings, hash fragments, and path segments

Developer & Web

URL Query Analyzer

Batch parse URL query parameters with output of key frequency, value samples, and encoding anomaly detection

Developer & Web

WHOIS Lookup

Query WHOIS domain registration information including registrar, dates, and name servers

Data & Tables

XML Path Extractor

Extract values from XML documents using XPath expressions. Perfect for extracting specific data from complex nested XML structures, API responses, RSS feeds, and configuration files.

Related Tags

SQL

35 Tools

Access 35 online SQL tools for database management, query formatting, and data conversion. Process files securely without software installation.

JSON

83 Tools

Access 83 online JSON tools for formatting, validating, and converting data. Process files securely on our servers with automatic deletion after 6 hours.

Data Processing

125 Tools

Access 125 online data processing tools for formatting, converting, and cleaning data. Secure server-side processing with automatic file deletion after 6 hours.

URL

23 Tools

Access 23 online URL tools to encode, decode, parse, and validate web addresses. Secure server-side processing with automatic file deletion after 6 hours.

API

19 Tools

Access 19 professional API tools for formatting, validating, and converting data. Process requests on our secure servers with automatic file deletion.

HTTP

7 Tools

Access 7 online HTTP tools to inspect headers, test requests, and debug web services. Server-side processing with automatic file deletion after 6 hours.

FAQ

How do these query tools process my data?

When you use a tool, your input is sent to Elysia Tools servers for processing. Text-based inputs are never stored, and any uploaded files are automatically deleted from our systems after 6 hours.

Do I need to install any database drivers or software?

No, all tools are accessible through your web browser. You can perform complex queries and data transformations without installing specialized software or configuring local environments.

Which query languages and formats are supported?

This collection includes 18 tools designed for various standards such as SQL, JSONPath, and URL query strings, allowing you to validate, format, and execute queries against your data sets.