SQLite Database Viewer

SQLite is the world's most widely deployed database engine, embedded inside billions of mobile devices (iOS and Android), desktop operating systems (macOS, Windows, Linux), web browsers (Chrome, Safari, Firefox), IoT firmware, and software applications. SQLite stores an entire relational database—including multiple tables, indexes, triggers, views, and schema definitions—within a single, cross-platform disk file (typically with .sqlite, .db, or .sqlite3 file extensions).

The internal architecture of SQLite is structured into several core subsystems:

• B-Tree Page Storage: The database file is partitioned into fixed-size binary pages (typically 4096 bytes). Table B-Trees store data row records indexed by 64-bit integer row IDs (ROWID), while Index B-Trees store sorted lookup keys.
• Virtual Database Engine (VDBE): Compiles SQL statements into bytecode instructions executed against the internal B-Tree storage layer.
• System Catalog (`sqlite_master`): The central metadata table storing all table schemas, view definitions, index schemas, and trigger definitions.

`` 📦 my_database.sqlite (Single File Binary Container) ├── 📄 sqlite_master (Master Schema Catalog) ├── 📄 users (Table B-Tree: 5,000 Rows) ├── 📄 orders (Table B-Tree: 25,000 Rows) └── 📄 products (Table B-Tree: 450 Rows) ``

Traditionally, inspecting an SQLite database required downloading and installing desktop database management tools like DB Browser for SQLite, DBeaver, or command-line sqlite3 binaries.

Upon loading a database, the engine automatically interrogates the SQLite master catalog to discover all user-defined tables:

``sql SELECT name FROM sqlite_master WHERE type='table' AND name NOT LIKE 'sqlite_%' ORDER BY name; ``

For each discovered table, the engine executes SQLite's PRAGMA table_info command to extract detailed column metadata:

| Field Name | Description | Output Representation | | :--- | :--- | :--- | | cid | Column ID index within the table. | #1, #2, #3 | | name | Column header name. | "user_id", "email" | | type | SQLite data type affinity. | INTEGER, TEXT, REAL, BLOB | | notnull | Nullability constraint flag. | NOT NULL or NULLABLE | | pk | Primary key indicator. | PRIMARY KEY Badge |

Our viewer accurately renders each data type, ensuring transparent data fidelity.

Mobile application caches, desktop software databases, and internal analytics stores frequently contain confidential credentials, private customer transactions, and sensitive proprietary schemas.

ZechKit SQLite Viewer runs 100% locally in your web browser memory. The SQLite WebAssembly engine runs exclusively on your local CPU. Zero database bytes are ever transmitted over the network, guaranteeing complete confidentiality, zero latency, and absolute compliance with GDPR, HIPAA, and corporate data governance policies.