# 2 Best Open Source Alternatives for AVEVA PI System

Canonical: https://caniforkit.com/aveva-pi-system
Last updated: 2026-11-07

Looking for the best open source alternative for AVEVA PI System? Compare 2 verified free and open source alternatives to AVEVA PI System (TDengine, Apache IoTDB) with license details, self-hosting requirements, and practical trade-offs.

## AVEVA PI System Overview & Subscription Cost
- **Product**: AVEVA PI System
- **Category**: [databases](https://caniforkit.com/category/databases)
- **Paid Subscription Price**: $25/month per seat
- **1-Seat Annualized Cost**: $300/year
- **5-Person Team Annualized Cost**: $1,500/year
- **10-Person Team Annualized Cost**: $3,000/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for AVEVA PI System or rebuilding it from scratch, deploy one of the 2 battle-tested open-source alternatives like TDengine.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [TDengine](https://caniforkit.com/fork/tdengine) | Open Source | AGPL-3.0 | Self-host | ★ 25.2k | [Compare vs AVEVA PI System](https://caniforkit.com/vs/aveva-pi-system-vs-tdengine) |
| [Apache IoTDB](https://caniforkit.com/fork/apache-iotdb) | Open Source | Open Source | Self-host | ★ 6.4k | [Compare vs AVEVA PI System](https://caniforkit.com/vs/aveva-pi-system-vs-apache-iotdb) |

## In-Depth Alternative Profiles

### TDengine
- **Fork Page**: [TDengine Profile](https://caniforkit.com/fork/tdengine)
- **Head-to-Head Comparison**: [AVEVA PI System vs TDengine](https://caniforkit.com/vs/aveva-pi-system-vs-tdengine)
- **Official Website**: https://tdengine.com/
- **Source Code Repository**: https://github.com/taosdata/tdengine
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 25.2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: High-performance time-series database with industrial data management, built-in stream analytics, and AI-driven anomaly detection for operational environments.
- **The Catch vs AVEVA PI System**: Requires self-hosting setup, updates, and server maintenance compared to managed kdb+.
- **Installation**: Clone https://github.com/taosdata/TDengine or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

### Apache IoTDB
- **Fork Page**: [Apache IoTDB Profile](https://caniforkit.com/fork/apache-iotdb)
- **Head-to-Head Comparison**: [AVEVA PI System vs Apache IoTDB](https://caniforkit.com/vs/aveva-pi-system-vs-apache-iotdb)
- **Official Website**: https://iotdb.apache.org/
- **Source Code Repository**: https://github.com/apache/iotdb
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 6.4k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Apache IoTDB manages industrial IoT time-series data with high-throughput read/write, edge-cloud sync, ultra-high compression, and integrations with Hadoop, Spark, Flink, and Grafana.
- **The Catch vs AVEVA PI System**: Requires self-hosting setup, updates, and server maintenance compared to managed AVEVA PI System.
- **Installation**: Clone https://github.com/apache/iotdb or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

## Frequently Asked Questions

### What is the best free alternative to AVEVA PI System?
The top free alternative to AVEVA PI System is TDengine (open source, AGPL-3.0). High-performance time-series database with industrial data management, built-in stream analytics, and AI-driven anomaly detection for operational environments. Other popular AVEVA PI System replacements include Apache IoTDB.

### How much does switching from AVEVA PI System to a free alternative save?
AVEVA PI System starts at $25/month per seat ($300/year). Switching a 5-person team to a free alternative like TDengine saves $1,500 per year in software subscription fees.

### What is the catch when switching away from AVEVA PI System?
While TDengine replaces core AVEVA PI System features without subscription fees, the real-world trade-off is: Requires self-hosting setup, updates, and server maintenance compared to managed kdb+.

## Related

- [databases Software Category Hub](https://caniforkit.com/category/databases)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)