TDengine
TDengine: A flexible industrial time-series database with broad ingestion and deployment options. Ranked #10 of 36 in Time-Series Databases by our editors (8.2/10); pricing: Free plan; best for industrial telemetry and high-volume ingestion.
At a glance
- Editor score8.2 / 10
- PricingFree plan
- Best forIndustrial telemetry and high-volume ingestion
- Free planYes
- DeploymentBoth
- Facts checked22 Sep 2026
Where it wins
- Supports MQTT, Kafka, OPC UA, relational databases, and line protocols
- Combines retention, clustering, stream processing, and edge-to-cloud synchronization
- Offers self-hosted, managed cloud, and a free tier for up to 5,000 tags
Where it doesn't
- Paid cloud pricing starts at $970 per month
- Free Tier is limited to self-hosted usage up to 5,000 tags
- Paid self-hosted licenses support 7,500 tags
Our verdict on TDengine
TDengine is a distributed time-series database for industrial and IoT data. It stores and queries timestamped data through TDengine SQL, with features for configurable retention, distributed clustering, stream processing, data subscriptions, read caching, and edge-to-cloud synchronization. The deployment options cover self-hosted environments on Linux and containerized environments, plus a fully managed cloud service. It is aimed at industrial enterprises and teams handling sensor, telemetry, and operational data across web, Windows, macOS, Linux, API, and self-hosted environments.
Pricing spans a free self-hosted tier and paid self-hosted or cloud plans. Free Tier supports up to 5,000 tags with no time limit stated. Self-Hosted Annual License costs $12,500 per license annually and supports 7,500 tags with standard support included. Self-Hosted Perpetual License costs $31,250 one time, supports 7,500 tags, and offers optional annual support. Cloud Starter costs $970 per month for 5,000 tags, Cloud Small costs $1,740 per month for 10,000 tags, and Cloud Medium costs $2,570 per month for 20,000 tags; all three are fully managed cloud deployments.
TDengine’s ingestion and ecosystem fit are notable for industrial workloads. It supports SQL INSERT, REST API, client libraries, MQTT, Kafka, OPC UA, OPC DA, PI System, CSV, relational databases, InfluxDB line protocol, and OpenTSDB line protocol. Integrations include MySQL, PostgreSQL, Oracle, MongoDB, Prometheus, Telegraf, Grafana, Power BI, and Tableau. Built-in stream processing, data subscriptions, zero-code ingestion and ETL, retention through KEEP, and horizontal scaling give it a broad operational scope. Teams needing a lower-cost paid entry point or a smaller, narrowly focused database may prefer an alternative; TDengine suits organizations that can use its industrial connectors and capacity-based plans.
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TDengine pricing
All 12 TDengine plans and prices →
TDengine fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Not verified |
| Deployment | Both |
| SQL support | Yes |
| Retention policies | Yes |
| Horizontal scaling | Yes |
| Query languages | SQL |
| Ingestion methods | SQL, InfluxDB Line Protocol, OpenTSDB Telnet Protocol, OpenTSDB JSON Protocol, MQTT, OPC UA, OPC DA, Kafka, CSV, PI System, MySQL, PostgreSQL, Oracle, MongoDB |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Windows, macOS, Linux |
| Compliance & security | SOC 2, ISO 27001 |
| Support | Docs · 24/7 |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 14 integrations: MQTT, Kafka, OPC UA, OPC DA, PI System, InfluxDB … See all → |
| Pricing | Free plan (source) |
| Website | tdengine.com |
| Facts checked | 22 Sep 2026 |
TDengine integrations
TDengine lists 14 integrations on its own site.
- MQTT
- Kafka
- OPC UA
- OPC DA
- PI System
- InfluxDB
- OpenTSDB
- Grafana
- Power BI
- Tableau
- Prometheus
- Telegraf
- DBeaver
- Node-RED
See all TDengine integrations →
Alternatives to TDengine
- Apache IoTDBA focused open-source choice for high-volume IoT ingestion, SQL, retention, and scaling.9.3
- Amazon TimestreamA managed AWS option with flexible ingestion, retention, SQL, and InfluxDB support.9.1
- LindormTSDBA broad compatibility layer for teams managing scalable telemetry and metrics workloads.9.0
See all TDengine alternatives →
Also Ranked In
TDengine is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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