LMDB Viewer Windows

Purpose and scope are to provide a read‑only LMDB exploration tool on Windows. It enables developers and data teams to inspect key/value pairs, view metadata such as map size and page size, and sample values without altering data. The tool is designed for local development, QA, and debugging scenarios where understanding data layout is essential.
Conceptually, the core workflow reads LMDB environments via memory‑mapped access, iterates keys in sorted order, and renders a representative sample of keys and values in hex and ASCII. It can compare multiple environments by aligning their key spaces and metadata, or present a single environment in a focused view. The approach emphasizes deterministic presentation and low overhead, avoiding any write paths.
Value previews help identify encoding and data distribution patterns, while metadata supports capacity planning, performance tuning, and migration validation. Its unique value lies in combining a lightweight, Windows‑native interface with robust, read‑only LMDB traversal, making it suitable for engineers, testers, and database admins who need quick, accurate insight into LMDB stores without tooling overhead.
Core features include: environment loading, ordered key traversal, sample rendering in hex and ASCII, metadata access, and optional exports to JSON or CSV for downstream analysis. Use cases include debugging LMDB‑based applications, validating data migrations, and auditing storage characteristics in development environments.