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Top 23 Python anomaly-detection Projects
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pyod
A Python Library for Outlier and Anomaly Detection, Integrating Classical and Deep Learning Techniques
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Civic Auth
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anomalib
An anomaly detection library comprising state-of-the-art algorithms and features such as experiment management, hyper-parameter optimization, and edge inference.
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Project mention: Merlion: A Machine Learning Framework for Time Series Intelligence | news.ycombinator.com | 2025-02-28
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Project mention: Stumpy: Python library to computing matrix profiles on timeseries | news.ycombinator.com | 2025-03-19
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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flow-forecast
Deep learning PyTorch library for time series forecasting, classification, and anomaly detection (originally for flood forecasting).
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luminaire
Luminaire is a python package that provides ML driven solutions for monitoring time series data.
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DeepADoTS
Repository of the paper "A Systematic Evaluation of Deep Anomaly Detection Methods for Time Series".
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matrixprofile
A Python 3 library making time series data mining tasks, utilizing matrix profile algorithms, accessible to everyone.
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CSI
CSI: Novelty Detection via Contrastive Learning on Distributionally Shifted Instances (NeurIPS 2020)
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Sevalla
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Python anomaly-detection discussion
Python anomaly-detection related posts
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Computer Vision Meetup: Anomaly Detection with Anomalib and FiftyOne
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Anomalib: Anomaly detection library comprising cutting-edge algorithms
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RAG Using Structured Data: Overview and Important Questions
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Open source anomaly detection for metrics
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Defect Detection using Computer Vision
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anomaly-detection-resources: NEW Extended Research - star count:7507.0
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anomaly-detection-resources: NEW Extended Research - star count:7507.0
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A note from our sponsor - Civic Auth
www.civic.com | 31 Aug 2025
Index
What are some of the best open-source anomaly-detection projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | pyod | 9,418 |
| 2 | sktime | 9,216 |
| 3 | anomaly-detection-resources | 8,907 |
| 4 | darts | 8,856 |
| 5 | anomalib | 4,892 |
| 6 | Merlion | 4,319 |
| 7 | stumpy | 3,977 |
| 8 | ailia-models | 2,241 |
| 9 | flow-forecast | 2,228 |
| 10 | surpriver | 1,821 |
| 11 | logparser | 1,820 |
| 12 | tods | 1,574 |
| 13 | pygod | 1,442 |
| 14 | luminol | 1,218 |
| 15 | OpenOOD | 983 |
| 16 | ADBench | 957 |
| 17 | luminaire | 782 |
| 18 | DGFraud | 737 |
| 19 | TranAD | 604 |
| 20 | DeepADoTS | 592 |
| 21 | opensnitch | 396 |
| 22 | matrixprofile | 384 |
| 23 | CSI | 282 |
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