HotCRP is a strong fit for a program committee whose difficult work is assigning, discussing and deciding on research papers. Its tags, conflicts and review controls reward careful configuration. Choose the hosted site class deliberately, and budget technical ownership if running the open-source version yourself.
Independent hosted sites explicitly receive bug-fix support only. Classroom sites have no support; sponsored arrangements differ.
The SOSP 2023 artifact-evaluation chairs described confusion between review and discussion pages in their January 2024 retrospective. Provide instructions for the configured current workflow.
The open-source option requires your own web server. Hosting, updates, backups and administration are separate from the software download.
| Plan | Price | Details |
|---|---|---|
| Independent hosted site | $7.50 per submission | Payment due after the submission deadline; support limited to bug fixes. Confirm billing currency. |
| ACM / USENIX sponsored | No direct site charge for qualifying venues | Use the appropriate sponsorship route; USENIX creates its own sites. |
| Classroom or test | Free with restrictions | Classroom approval requires evidence of actual educational use; test sites have limited lifetime and email restrictions. |
| Self-hosted open source | Software available; operating costs separate | Your organization supplies and maintains the web server. |
HotCRP is built around the scientific program committee. A useful trial should include conflicted reviewers, several tracks, rebuttals and a final decision meeting so chairs can see how their review policy behaves.
The hosted service and the open-source download are two ways to operate the same software family. Sponsorship changes the hosted arrangement; running a server changes who maintains the system.
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