# SQL Injection Detector Detect common SQL injection attack patterns in input strings > Canonical page: https://elysiatools.com/en/tools/sql-injection-detector - **Category:** Security - **Keywords:** sql, injection, security, database, attack, detector, SQL Injection Detector ## Overview ### SQL Injection Detector This tool helps identify potential SQL injection vulnerabilities in your input: **Detection Categories:** - **SQL Keywords**: SELECT, INSERT, UPDATE, DELETE, DROP, UNION, EXEC - **SQL Comments**: --, /*, */, # - **SQL Operators**: OR, AND, =, ==, !=, <> - **Conditional Injection**: ' OR '1'='1, " OR "1"="1 - **Time-Based Injection**: WAITFOR DELAY, SLEEP(), BENCHMARK() - **Boolean-Based Injection**: AND 1=1, OR 1=1 - **UNION-Based Injection**: UNION SELECT **Risk Levels:** - **LOW**: Basic SQL keywords without execution context - **MEDIUM**: SQL operators and conditional patterns - **HIGH**: Advanced injection techniques (UNION, time-based) - **CRITICAL**: Complete, executable injection payloads **Example Attack Patterns:** - `' OR '1'='1` - `" OR "1"="1` - `1' UNION SELECT NULL--` - `'; DROP TABLE users; --` - `' AND SLEEP(5)--` **Use Cases:** - Validate user input before database queries - Scan log files for injection attempts - Review code for potential vulnerabilities - Security testing and penetration testing - Educational tool for learning SQL injection ## Inputs - **Text to Analyze** (textarea): Enter text or code to scan for SQL injection patterns... - **Case Sensitive** (checkbox): Enable case-sensitive pattern matching - **Check SQL Comments** (checkbox): Detect SQL comment patterns (--, /*, */, #) - **Check UNION Injection** (checkbox): Detect UNION-based SELECT injection - **Check Time-Based Injection** (checkbox): Detect time-based injection (WAITFOR DELAY, SLEEP, BENCHMARK) - **Check Boolean Injection** (checkbox): Detect boolean-based injection patterns - **Whitelist Patterns** (text): Patterns that should be considered safe (comma-separated) ## When to use - When validating user input fields, API payloads, or form submissions before processing them in database queries. - When auditing application log files to identify potential SQL injection attempts or malicious scanning activity. - When performing security testing, code reviews, or penetration testing to locate vulnerable entry points in your code. ## How it works - Paste the text, code snippet, or query payload you want to analyze into the input area. - Configure detection options such as case sensitivity, comment checks, UNION-based checks, time-based checks, and boolean-based checks. - Optionally define a comma-separated whitelist of safe patterns to exclude from the detection results. - Run the detector to receive a detailed JSON report classifying the risk level from Low to Critical along with the matched SQL injection patterns. ## Use cases - Scanning web application input fields to prevent SQL injection vulnerabilities before deployment. - Analyzing server access logs to detect and block malicious SQL injection payloads. - Educating developers and QA testers on identifying common SQL injection patterns and payloads. ## Frequently asked questions ### What risk levels does the SQL Injection Detector report? It classifies risks into four levels: Low (basic keywords), Medium (operators/conditionals), High (UNION/time-based techniques), and Critical (complete executable payloads). ### Can I ignore specific safe queries during the scan? Yes, you can input comma-separated safe patterns in the Whitelist field to prevent them from triggering alerts. ### Does this tool detect time-based injection attacks? Yes, it scans for time-based signatures such as SLEEP(), BENCHMARK(), and WAITFOR DELAY when the time-based option is enabled. ### Is the pattern matching case-sensitive? By default, matching is case-insensitive, but you can enable the Case Sensitive option to enforce strict matching. ### Does this tool execute the SQL queries? No, this is a static analysis tool that scans text for known attack signatures and does not run any database commands. ## Related tools - [Mock Data Prefix / Abbreviation Conflict Detector](https://elysiatools.com/en/tools/mock-data-naming-conflict-detector): Detect visually confusing field names and prefix collisions in CSV, JSON, or schema inputs, then suggest clearer renames - [XSS Payload Detector](https://elysiatools.com/en/tools/xss-payload-detector): Detect XSS (Cross-Site Scripting) attack vectors in input strings - [BOM Character Remover](https://elysiatools.com/en/tools/data-bom-remover): Remove BOM (Byte Order Mark) characters from text and file content. Perfect for cleaning up text files that have encoding issues, fixing CSV imports, and preparing data for processing. Features: - Detect and remove UTF-8 BOM (EF BB BF) - Detect and remove UTF-16 BOM (FE FF or FF FE) - Detect and remove UTF-32 BOM (00 00 FE FF or FF FE 00 00) - Support multiple input formats - Visual BOM character display - Detailed detection report - Support for batch text processing Common Use Cases: - Fix CSV file import errors - Clean up text file encoding issues - Prepare data for JSON parsing - Fix XML parsing problems - Resolve API data encoding conflicts - Standardize text data format - [Data Noise Injection](https://elysiatools.com/en/tools/data-noise-injection): Inject various types of noise into text data for testing purposes. Perfect for stress testing data processing systems, testing data quality algorithms, and creating realistic test datasets. Features: - Character-level noise injection - Word-level noise injection - Numeric data noise - Formatting noise - Whitespace noise - Special character noise - Configurable intensity levels - Realistic noise patterns Common Use Cases: - Test data validation systems - Stress test parsing algorithms - Evaluate error handling - Test data cleaning algorithms - Create realistic messy data - Benchmark data processing performance - [Remove Duplicate Lines](https://elysiatools.com/en/tools/remove-duplicate-lines): Deduplicate lines in a list or text block. Keep the first or last occurrence, with options for case sensitivity, whitespace trimming, and dropping empty lines. - [Structured Log Analyzer](https://elysiatools.com/en/tools/structured-log-analyzer): Detect common log formats, extract core fields, infer field types, and export parsed logs as JSON, CSV, or SQL inserts - [AI Markdown Article Translator](https://elysiatools.com/en/tools/ai-markdown-article-translator): Translate full Markdown articles with AI while preserving headings, tables, links, images, and code blocks for direct publication - [Audio Vocoder](https://elysiatools.com/en/tools/audio-vocoder): Apply a vocoder effect using a carrier and modulator ## Samples - [SQL Injection Samples](https://elysiatools.com/en/samples/sql-injections): Educational collection of SQL injection payloads for security testing, vulnerability assessment, and defensive coding practices - [SQL Scripts Samples](https://elysiatools.com/en/samples/sql-samples): SQL query examples and database scripts for various scenarios and use cases (primarily MySQL syntax) - [SQL Viewer Samples](https://elysiatools.com/en/samples/sql-viewer-samples): Sample SQL scripts (DDL/DML, joins, CTEs) for the in-browser SQL Viewer - [PostgreSQL Advanced Samples](https://elysiatools.com/en/samples/postgresql-advanced): Advanced PostgreSQL database examples including optimization strategies, complex queries, indexing, and performance tuning ## Related content - [SQL Query Review for Performance and Integrity](https://elysiatools.com/en/hubs/sql-query-review-performance-and-integrity): Build, format, and review SQL with join logic, performance evidence, explain plans, injection checks, foreign-key validation, and schema drift review.