head to head · open source
ralph vs OpenConstructionERP
ralph has 2,516 GitHub stars, 593 forks, 124 open issues and last shipped 8 days ago. OpenConstructionERP has 823 stars, 259 forks, 2 open issues and last shipped yesterday. ralph leads on adoption by 206% (2,516 vs 823 stars). ralph is written in Python under Apache-2.0; OpenConstructionERP is written in TypeScript under AGPL-3.0. ralph has attracted 24% as many forks as stars, OpenConstructionERP 31%. OpenConstructionERP was the more recently maintained of the two, and both are self-hostable with no licence fee.
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
| ralph | OpenConstructionERP | |
|---|---|---|
| GitHub stars | ★ 2.5K | ★ 823 |
| License | Apache-2.0 | AGPL-3.0 |
| Written in | Python | TypeScript |
| Last push | 2026-09-10 | 2026-09-17 |
| Forks | ⑂ 593 | ⑂ 259 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ralph if
- You weight community size — 2.5K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick OpenConstructionERP if
- You want the OpenConstructionERP feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches TypeScript
- You evaluated both and OpenConstructionERP fits your workflow better
About ralph
Ralph is an open source asset management, DCIM, and CMDB system written in Python and built with Django. It is intended for organizations that need to manage data center hardware and back office hardware in one place under the Apache 2.0 license. The project lives in the business software and operations ecosystem.
read the full ralph overview →
About OpenConstructionERP
OpenConstructionERP is an open source, self hosted construction ERP under AGPL 3.0, aimed at construction companies and estimating teams that want BOQ, cost estimation, CAD/BIM takeoff, scheduling and tendering in one platform they run on their own infrastructure.
read the full OpenConstructionERP overview →
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Frequently asked questions
Is ralph or OpenConstructionERP more popular?
ralph has 2,516 GitHub stars and OpenConstructionERP has 823. ralph has the larger community by that measure.
Are ralph and OpenConstructionERP free?
Both are open source. ralph is licensed under Apache-2.0 and OpenConstructionERP under AGPL-3.0. Neither carries a licence fee.
What is the difference between ralph and OpenConstructionERP?
ralph is written in Python and OpenConstructionERP in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ralph or OpenConstructionERP?
Choose ralph if you want the larger community (2,516 stars) or its Apache-2.0 licence terms. Choose OpenConstructionERP if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.