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UnQLite

unqlite.symisc.net

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Spec score 8.0 #12 of 28 in Document Databases

Spec sheet

Purpose
UnQLite is an in-process, embedded NoSQL database engine that provides key/value and document-store interfaces.Read 8 Oct 2026 · unqlite.symisc.net
Platforms
The ANSI C code is described as running on most platforms with a C compiler and is extensively tested on Windows, Linux, FreeBSD, Oracle Solaris, and Mac OS X.Read 8 Oct 2026 · unqlite.symisc.net
Support
Public technical discussions and troubleshooting are directed to GitHub Issues, while professional support is available as a paid service on request.Read 8 Oct 2026 · unqlite.symisc.net
License
UnQLite is open-source software released under the 2-Clause BSD license.Read 8 Oct 2026 · unqlite.symisc.net
Capacity
The FAQ says the UnQLite core imposes no database size limit and that the underlying key/value store determines its own limit.Read 8 Oct 2026 · unqlite.symisc.net
Data models
UnQLite supports byte-array key/value data and JSON document storage through the embedded Jx9 scripting language.Read 8 Oct 2026 · unqlite.symisc.net
Downloads
The downloads page lists source code, a key/value-only package without the Jx9 document-store layer, documentation, and sample programs.Read 8 Oct 2026 · unqlite.symisc.net
Integration
The maker provides C/C++ APIs and documents how to register C/C++ foreign functions and constants for use from Jx9 scripts.Read 8 Oct 2026 · unqlite.symisc.net
Intended use
The maker says the self-contained library is suited to embedded devices and applications that need to run across computers with varied configurations.Read 8 Oct 2026 · unqlite.symisc.net
Security extensions
The maker offers a proprietary extension for reading and writing databases encrypted with 128-bit or 256-bit AES.Read 8 Oct 2026 · unqlite.symisc.net
Serverless
Applications read and write database files directly without a separate server process.Read 8 Oct 2026 · unqlite.symisc.net
Storage
A complete database with multiple collections is contained in a single ordinary disk file.Read 8 Oct 2026 · unqlite.symisc.net
Storage options
The maker lists both on-disk and in-memory databases and describes a pluggable runtime storage engine.Read 8 Oct 2026 · unqlite.symisc.net
Thread safety
The library is thread-safe when compiled with the UNQLITE_ENABLE_THREADS compile-time directive.Read 8 Oct 2026 · unqlite.symisc.net
Transactions
The maker describes UnQLite as transactional and ACID, with serializable transactions designed to remain atomic through crashes and power failures.Read 8 Oct 2026 · unqlite.symisc.net

Plans and prices

UnQLite open-source software Free 2-Clause BSD license · downloadable source code Read 8 Oct 2026 · unqlite.symisc.net
Silver Sponsorship $15,000 a year $15K/Year Sponsorship benefits listed by the maker Read 8 Oct 2026 · unqlite.symisc.net
Gold Sponsorship $50,000 a year $50K/Year Enterprise-level technical support · direct source-tree and core-developer access Read 8 Oct 2026 · unqlite.symisc.net
Platinum Sponsorship Price not published $100K/Year Enterprise-level technical support · direct source-tree and core-developer access Read 8 Oct 2026 · unqlite.symisc.net

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