SQL Injection Detector | Online Free Tool | Elysia Tools

SQL Injection Detector | Online Free Tool | Elysia Tools

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category: Security
Input types: textarea, checkbox, text
Output type: json
Sample coverage: 4
API ready: Yes

Overview

The SQL Injection Detector helps you identify potential SQL injection vulnerabilities and malicious attack patterns within your input strings. By scanning for SQL keywords, comments, operators, and advanced injection techniques like UNION-based or time-based payloads, this tool provides a quick risk assessment to secure your database queries and application inputs.

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

1Paste the text, code snippet, or query payload you want to analyze into the input area.
2Configure detection options such as case sensitivity, comment checks, UNION-based checks, time-based checks, and boolean-based checks.
3Optionally define a comma-separated whitelist of safe patterns to exclude from the detection results.
4Run 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.

Examples

1. Detecting Tautology-Based SQL Injection

Security QA Engineer

Background

A QA engineer is testing a login form input field to ensure it rejects common authentication bypass payloads.

Problem

The engineer needs to verify if the payload `' OR '1'='1` is flagged as a security risk.

How to use

Enter `' OR '1'='1` into the text area, keep the default boolean and comment checks enabled, and run the analysis.

{
  "text": "' OR '1'='1",
  "checkBoolean": true,
  "checkComments": true
}

Outcome

The tool flags the input as a Medium risk, identifying the conditional boolean injection pattern.

2. Identifying Destructive SQL Payloads

Backend Developer

Background

A developer is reviewing suspicious input captured in application error logs that caused a database exception.

Problem

The developer wants to check if the input contains a destructive stacked query payload.

How to use

Paste the log entry `'; DROP TABLE users; --` into the detector, ensuring comment detection is active.

FAQ

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.

{
  "text": "'; DROP TABLE users; --",
  "checkComments": true,
  "caseSensitive": false
}