head to head · open source
orm vs TDengine
orm has 47,661 GitHub stars, 2,605 forks, 2,627 open issues and last shipped 2 days ago. TDengine has 25,182 stars, 5,014 forks, 434 open issues and last shipped yesterday. orm leads on adoption by 89% (47,661 vs 25,182 stars). orm is written in TypeScript under Apache-2.0; TDengine is written in C under AGPL-3.0. orm has attracted 5% as many forks as stars, TDengine 20%. TDengine was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (database), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| orm | TDengine | |
|---|---|---|
| GitHub stars | ★ 48K | ★ 25K |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | TypeScript | C |
| Last push | 2026-11-03 | 2026-11-04 |
| Forks | ⑂ 2.6K | ⑂ 5.0K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick orm if
- You weight community size — 48K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches TypeScript
- You value the larger contributor base for long-term maintenance
pick TDengine if
- You want the TDengine feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches C
- You evaluated both and TDengine fits your workflow better
About orm
Docs Discord X Blog Post Architecture Using Prisma 7? It remains fully supported. Its source lives on the v7 branch of this repository and its docs at prisma.io/docs/orm/v7. Prisma 8 is a release candidate. 8.0.0 final is expected in the next four to eight weeks. Until then a release candidate may include breaking changes, and every release ships with an upgrade recipe that the prisma 8 skill applies for you. The candidate is a complete implementation we stand behind: we treat bugs in it as urgent, and the risk you take on is a feature that is not built yet rather than churn. The feature scoreboard names every…
About TDengine
English 简体中文 日本語 TDengine Cloud Documentation Learn more about TSDB TDengine 1. Introduction TDengine is an open source, high performance, cloud native and AI powered time series database designed for Internet of Things (IoT), Connected Cars, and Industrial IoT. It enables efficient, real time data ingestion, processing, and analysis of TB and even PB scale data per day, generated by billions of sensors and data collectors. TDengine differentiates itself from other time series databases with the following advantages: High Performance : TDengine is the only time series database to solve the high cardinality issue…
read the full TDengine overview →
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Frequently asked questions
Is orm or TDengine more popular?
orm has 47,661 GitHub stars and TDengine has 25,182. orm has the larger community by that measure.
Are orm and TDengine free?
Both are open source. orm is licensed under Apache-2.0 and TDengine under AGPL-3.0. Neither carries a licence fee.
What is the difference between orm and TDengine?
orm is written in TypeScript and TDengine in C. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, orm or TDengine?
Choose orm if you want the larger community (47,661 stars) or its Apache-2.0 licence terms. Choose TDengine if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.