Trust your SQL before you rely on it
QueryWave analyzes your query logic to surface hidden assumptions, risky joins, and edge cases — so you can be confident in the results.
No login required · Free · Schemas not stored
1Upload schema
Paste or upload CREATE TABLE statements2Paste your SQL query
Describe what feels “off” (optional)
Example: My query returns more rows than expected when joining orders and users
3Generate analysis
Upload a schema to continue
How QueryWave helps
Detects join issues
Catches duplication from incorrect JOINs
Flags logic errors
Spots WHERE vs JOIN condition mistakes
Plain English
Explains what went wrong and why