Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data
⚡ Executive Summary & Quick Facts
Authoritative SourceNGT is NGT is an open-source project written in C++: Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), NGT-labs/NGT has accumulated 1,374 GitHub stars and 131 forks. It is written in C++, licensed under Apache-2.0, and ranks #6,348 globally. It is actively maintained with the latest commit recorded on Oct 8, 2026.”
| Repository | NGT-labs/NGT ↗ |
|---|---|
| Primary Category | approximate nearest neighbor search |
| Language & Stack | C++ |
| Software License | Apache-2.0 |
| Community Traction | ★ 1.4K stars · ⑂ 131 forks · #6,348 globally |
| Maintenance | ● Active (Last commit: Oct 8, 2026) · 30 open issues |
| Target Audience | Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 92/100 · Grade AYes, NGT is actively maintained. Continuous telemetry recorded the last code commit on Oct 8, 2026 (25 days ago). Supported by 1,374 stars and 131 community forks, this repository holds a calculated health index of 92/100, reflecting regular maintenance (25 days ago) and healthy issue cadence.
Star History
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+34
STARS · LAST 30 DAYS
1
PER DAY
#504
MOST-STARRED C++
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +0 | +34 | +90 |
| Per day | 1 | 1 | 1 |
| Forks gained | +0 | +3 | +10 |
NGT gained 34 stars in the last 30 days, about 1 a day, and now has 1.4K. It is about 10 years old and has averaged roughly 137 stars a year. It ranks #504 among C++ repositories and #6,348 across all languages on GitHubRepo.
Trending Record
24
DAYS ON TRENDING
#5462
BEST RANK
Oct 8, 2026
FIRST APPEARANCE
Active
STATUS TODAY
NGT has maintained a continuous presence across global trending indexes, peaking at #5462. Below is the 30-day activity profile:
💡 Overview
NGT is an open-source project written in C++: Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data.
Engineered for speed, consistency, and developer ease, it solves common hurdles in approximate-nearest-neighbor-search, k-nearest-neighbors, knn-search. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C++ for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/NGT-labs/NGT.git
cd NGT⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C++20 compliant compiler (GCC 11+, Clang 13+, MSVC)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
NGT coordinates its core functionality through a modular C++ pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
High-Throughput Storage
Persist and retrieve structured data records with minimal latency and high concurrency.
In-Memory Caching
Accelerate application response times by caching frequently queried database entities.
Analytical Queries
Run aggregate metrics and point lookups across large sets of records.
Distributed Replication
Synchronize state across multiple cluster nodes with strong consistency guarantees.
🚀 Getting Started
Install NGT using your package manager: `git clone https://github.com/NGT-labs/NGT.git`
Initialize your project workspace or configuration file for NGT.
Import NGT into your codebase or invoke it directly from your terminal.
Execute your test suite or run `NGT --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C++, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
NGT-labs/NGT is currently ranked #6,348 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #6,343 | SplashtopInc/winstall | JavaScript | ★ 1.4K | Compare ↗ |
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| #6,345 | shilapi/xcertplay | Kotlin | ★ 1.4K | Compare ↗ |
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| #6,346 | GlassHaven/Haven | Kotlin | ★ 1.4K | Compare ↗ |
| #6,348 | NGT-labs/NGT This Project | C++ | ★ 1.4K | |
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Frequently Asked Questions
What does NGT do? +
Nearest Neighbor Search with Neighborhood Graph and Tree for High-dimensional Data
Is NGT actively maintained in 2026? +
Yes, NGT is actively maintained. The latest code push was recorded on Oct 8, 2026 (25 days ago). It holds a calculated Maintenance Health Score of 92/100 (A rating) with 1,374 stars and 30 open issues.
What language is NGT written in? +
The primary language is C++. Topics include: approximate-nearest-neighbor-search, k-nearest-neighbors, knn-search, nearest-neighbor-search, nearest-neighbors.
How many stars does NGT have? +
NGT has 1,374 stars and 131 forks on GitHub.
How does NGT rank among GitHub repositories? +
With 1,374 stars, NGT-labs/NGT is ranked #6,348 globally across all repositories tracked on GitHubRepo and #504 among C++ projects.
What license is NGT distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
