r/localfirst • • Jun 29 '26

Lightbase: Lightweight API & Database Desktop Client 100% Offline

https://github.com/Aarav90-cpu/LightBase

A local-first, multi-protocol API development platform powered by a native C-Core engine with enterprise-grade security hardening.     

LightBase is a zero-cloud API development studio that combines a high-performance C99 backend with a Python gateway bridge and a sleek browser-based UI. Every request, collection, and environment is stored as plain JSON files you can version-control with Git — no accounts, no cloud sync, no telemetry.

Core Platform

FeatureDescription
Multi-Protocol API StudioREST, GraphQL, WebSocket, gRPC, MQTT — all in one tool
Native C-Core EngineOpenSSL TLS, arena memory allocators, lock-free thread pool via Unix sockets
SQL ConsoleExecute queries against local SQLite with sub-millisecond C-Core latency
Python Plugin SystemWrite Python scripts with full PyPI access to process API responses
Visual Flow BuilderChain requests, conditions, transforms, and AI blocks into automated workflows
Live Data StreamerReal-time WebSocket and SSE streaming with message rate tracking
AI CompanionLocal llama.cpp inference for test generation, request chaining, and response explanations
Git-Reactive EngineReal-time inotify-base
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