SQL Database and Query Tools

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

Our SQL toolset provides 35 specialized utilities for managing database queries, formatting SQL statements, and converting data between various formats. These tools allow you to validate syntax, minify code, or transform database exports directly from your browser, with all processing handled securely on our servers.

35 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"}]

Data & Tables

CSV to Database Migration Planner

Infer a relational schema from CSV data and generate create-table plus ALTER migration plans for PostgreSQL, MySQL, SQLite, or SQL Server

Data & Tables

Data Boundary Processor

Advanced boundary value processing tool that identifies and handles minimum/maximum values in numerical data. Perfect for data validation, range checking, statistical analysis, and data preprocessing. Features: - Multiple boundary detection methods (absolute, percentile, standard deviation) - Flexible handling strategies (clip, remove, replace, transform) - Custom range validation - Asymmetric boundary handling - Batch processing capabilities - Comprehensive boundary statistics - Data quality assessment - Visual boundary reports Common Use Cases: - Data validation and quality control - Sensor data range checking - Financial data limit enforcement - Statistical data preprocessing - Machine learning feature engineering - Database constraint validation

Data & Tables

Data Deduplicator

Remove duplicate rows from CSV files based on multiple column combinations. Perfect for cleaning customer lists, survey responses, and database exports. Features: - Multi-column combination deduplication - Fuzzy matching for similar records - Custom deduplication strategies (keep first, last, or most complete record) - Case-insensitive matching option - Whitespace trimming - Detailed duplicate statistics Common Use Cases: - Remove duplicate customer records - Clean email marketing lists - Eliminate redundant survey responses - Prepare data for analysis

Data & Tables

Foreign Key Validator

Validate foreign key relationships between multiple datasets. Perfect for checking data integrity, finding orphaned records, and ensuring referential consistency across related tables. Features: - Validate foreign key relationships - Find orphaned records - Check referential integrity - Support multiple key formats - Cross-table validation - Missing key detection - Duplicate key analysis - Relationship mapping Common Use Cases: - Database integrity checks - Data migration validation - ETL process verification - Referential consistency checks - Data quality assurance - Relationship analysis

Developer & Web

Database Backup Generator

Generate SQL backup scripts for database tables

Developer & Web

Database Migration Generator

Generate SQL migration scripts for database schema changes

Developer & Web

Database Schema Diff

Compare two database schemas and generate migration-oriented change reports

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

Header Adder

Add headers to CSV data that lacks column names. Perfect for data import from databases, API responses, or numeric datasets that need proper column identification. Features: - Add custom headers to header-less data - Auto-generate intelligent headers - Support for various header naming conventions - Preview headers before applying - Multiple header format options - Support for existing data detection - Batch processing capabilities Common Use Cases: - Fix database exports without headers - Process API response data - Prepare numeric datasets for analysis - Standardize data column naming - Create proper CSV structures - Data format normalization

Data & Tables

Header Remover

Remove headers from CSV data to create clean header-less files. Perfect for database imports, data processing pipelines, API integrations, and systems that require header-less CSV format. Features: - Remove first row (header) from CSV data - Remove multiple header rows - Skip empty lines before removing headers - Preserve data integrity - Support various CSV separators - Preview before removal - Data validation options - Batch processing capabilities Common Use Cases: - Prepare data for database imports - Clean up API response data - Remove metadata from exported files - Create header-less data for machine learning - Prepare data for systems that don't use headers - Extract pure data values from structured files

Developer & Web

IP Info

Get real information about IP addresses including location and ISP details using geolocation database

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

Data & Tables

Multi-Table Joiner

Merge and join multiple tables with various join types (inner, left, right, full)

AI & Generators

PDF RAG Chunker & Citation Pack

Convert a PDF into heading-aware RAG chunks with page numbers, bounding boxes, and citation metadata

Science & Education

Scientific Constants Query

Search and display scientific constants with customizable language and output format

Developer & Web

SQL Formatter

Format SQL queries

Security & Validation

SQL Injection Detector

Detect potential SQL injection patterns in text

Developer & Web

SQL Performance Analyzer

Analyze SQL queries for potential performance issues

Developer & Web

SQL Query Builder

Build simple SQL queries visually

Data & Tables

Structured Log Analyzer

Detect common log formats, extract core fields, infer field types, and export parsed logs as JSON, CSV, or SQL inserts

Developer & Web

Table Schema Generator

Generate SQL table schema definitions

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

Conversion & Encoding

XLSX SQL Insert Generator

Read Excel headers and rows to generate SQL INSERT statements for bulk loading

Conversion & Encoding

XLSX Unpivot Normalizer

Unpivot wide tables (e.g., month columns) into normalized long-form records for database ingestion

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

Query

18 Tools

Access 18 online query tools for data extraction, filtering, and transformation. 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.

CSV

62 Tools

Access 62 professional CSV tools to convert, format, and manipulate comma-separated data. Secure server-side processing with automatic file deletion after 6 hours.

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.

API

19 Tools

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

Schema

17 Tools

Access 17 online schema tools to validate, convert, and generate data structures. Process files securely on our servers with automatic deletion after 6 hours.

FAQ

Do I need to install a database client to use these SQL tools?

No software installation is required. You can perform SQL operations, query formatting, and data conversions directly through your web browser.

How are my SQL queries and database files processed?

While you interact with the tools in your browser, processing occurs on Elysia Tools servers. Text inputs are not stored, and any uploaded files are automatically deleted after 6 hours.

Can I convert SQL exports to other formats?

Yes, the collection includes tools to convert SQL data to formats like JSON, CSV, or XML, as well as utilities for generating SQL insert statements from external data sources.