Why this tool is useful
Answer a focused question about a private SQLite export while preventing INSERT, UPDATE, DELETE and schema-changing statements.
Local File Tools · runs locally
Private Read-only SQLite Query
Run one bounded SELECT, WITH or EXPLAIN statement against a local SQLite file in query-only browser memory.
Ready. Your working data stays in this browser.
Files and capture streams stay on this device. Processing uses browser APIs only; nothing is uploaded to YTSave, the media API or a proxy.
How it works
The browser rejects multiple statements and non-query leading keywords, enables PRAGMA query_only, prepares one statement and stops after the 10,000-row limit.
Practical example
Select a local database and run SELECT id, title FROM items ORDER BY id LIMIT 20 to review a small deterministic result without installing a desktop client.
Validation
The calculation is deterministic and explains validation errors instead of silently changing invalid input.
Privacy boundary
Input and output remain in this tab. Copy and download happen through browser APIs without a server upload.
Result passport
Every run reports its tool mode, timestamp and input/output size so transformed data can be audited.