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Top 122 Open Source RAG & Vector Database Projects (February 2026)

repos

Review 122 Retrieval-Augmented Generation (RAG) pipelines, embedding generators, semantic search engines, and vector store connectors from February 2026.

RAG & Vector Search — February 28, 2026

GitHub
Anthropic – Legal Productivity Pluginanthropics/knowledge-work-plugins
GitHub
RISC-V Vector Primersimplex-micro/riscv-vector-primer
GitHub
I built a RAG engine to search Singaporean lawsadityaprasad-sudo/Explore-Singapore
GitHub
RISC-V Vector Primersimplex-micro/riscv-vector-primer
GitHub
Knowledge-Bankgabrywu-public/knowledge-bank
GitHub
I built an Customized LLM with RAG for Singaporeadityaprasad-sudo/Explore-Singapore
GitHub
Resetting RAG-based LLMs doesn't reset behaviorVeritasAdmin/audit-grade-ai-workstation

+ 82 more verified repositories in full dataset...

Executive Intelligence Summary

During February 2026, the Repos tracking engine indexed 122 open-source repositories matching the RAG & Vector Search cluster.

These projects represent active engineering teams and independent open-source developers shipping production code, architectural prototypes, and developer tooling.


Key Sector Telemetry & Maintainer Trends

  • Primary Topic Signals: search (43), rag (24), semantic (21), vector (20), code (18), local (15)
  • Active Maintainers & Orgs: ZSeven-W (3), Shadylukin (2), simplex-micro (2), adityaprasad-sudo (2), lightonai (2)
  • Sample Records Displayed: 40 of 122
  • Remaining Available in Dataset: 82 records

3 Ways to Monetize & Leverage This Developer Intelligence

1. DevTool Sales & Technical Outbound

Reach out to repository creators who just launched tools in the RAG & Vector Search space. Maintainers actively shipping code are prime candidates for cloud infrastructure, CI/CD automation, API credits, and developer tools.

2. High-Signal Tech Recruitment

Identify skilled engineers working on bleeding-edge projects. Sourcing talent directly from verified open-source releases gives you verified code samples and active commits.

3. Competitive Intelligence & Directory Building

Import structured repository telemetry into internal dashboards, market landscape charts, or developer directory websites to track where open-source velocity is concentrating.


Developer Usage Recipe

import pandas as pd

# Load Repos Master Index
df = pd.read_csv("repos.csv")

# Filter for February 2026 records in this sector
sector_repos = df[df["month"] == "2026-02"]
print(f"Loaded {len(sector_repos):,} open-source repositories from February 2026")

If you need the full dataset of 19,400+ developer repository records formatted for instant use in spreadsheets, pipelines, or databases, check out the Repos Master Dataset.

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