head to head · open source
OpenProject vs gronx
OpenProject has 16,933 GitHub stars, 3,676 forks, 224 open issues and last shipped yesterday. gronx has 515 stars, 38 forks, 8 open issues and last shipped 1 months ago. OpenProject leads on adoption by 3,188% (16,933 vs 515 stars). OpenProject is written in Ruby under GPL-3.0; gronx is written in Go under MIT. OpenProject has attracted 22% as many forks as stars, gronx 7%. OpenProject 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.
← all 20902 open source comparisons
Side by side
| OpenProject | gronx | |
|---|---|---|
| GitHub stars | ★ 17K | ★ 515 |
| License | GPL-3.0 | MIT |
| Written in | Ruby | Go |
| Last push | 2026-11-02 | 2026-09-27 |
| Forks | ⑂ 3.7K | ⑂ 38 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenProject if
- You weight community size — 17K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Ruby
- You value the larger contributor base for long-term maintenance
pick gronx if
- You want the gronx feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Go
- You evaluated both and gronx fits your workflow better
About OpenProject
OpenProject We empower teams to achieve great things together for the good of society. OpenProject is a web based open source project management software for teams and organizations that require transparency, flexibility, and data sovereignty. Manage projects, portfolios, products, tasks, bugs, agile workflows, roadmaps, and team collaboration in a single platform. OpenProject can be self hosted and is designed for organizations looking for an open source enterprise ready alternative to tools such as Jira, MS Project, Monday, Asana, YouTrack while maintaining full control over their data and infrastructure…
read the full OpenProject overview →
About gronx
adhocore/gronx gronx is Golang cron expression parser ported from adhocore/cron expr with task runner and daemon that supports crontab like task list file. Use it programatically in Golang or as standalone binary instead of crond. If that's not enough, you can use gronx to find the next ( NextTick() ) or previous ( PrevTick() ) run time of an expression from any arbitrary point of time. Zero dependency. Very fast because it bails early in case a segment doesn't match. Built in crontab like daemon. Supports time granularity of Seconds. Find gronx in pkg.go.dev. Installation As a Go library Using Bash install…
read the full gronx overview →
More in Business Software
Related comparisons
More Project & Work Management projects
Compare either of these against the rest of the Project & Work Management field.
Frequently asked questions
Is OpenProject or gronx more popular?
OpenProject has 16,933 GitHub stars and gronx has 515. OpenProject has the larger community by that measure.
Are OpenProject and gronx free?
Both are open source. OpenProject is licensed under GPL-3.0 and gronx under MIT. Neither carries a licence fee.
What is the difference between OpenProject and gronx?
OpenProject is written in Ruby and gronx in Go. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenProject or gronx?
Choose OpenProject if you want the larger community (16,933 stars) or its GPL-3.0 licence terms. Choose gronx if its feature set, stack or MIT licence fits better. Both are self-hostable.