Side by side
Case Calendar vs Deadline Engine
Both stand on legal calendaring software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan LinuxMacSelf-hosted+2
Case Calendar connects public federal dockets with calendar tools and separates major deadlines from procedural filings. Its maker cautions that docket delays and extraction errors mean users should verify consequential dates against the source docket.
Visit Case Calendar
Free plan Web
Deadline Engine presents procedural calculations with citations and working, but it does not decide how a rule applies to a case. Users should verify dates against the rules and case facts.
Visit Deadline EngineThe facts
| Case Calendar | Deadline Engine | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Linux, Mac, Self-hosted, Web, Windows | Web |
| Lowest paid plan | Not published | Professional annual: $299.99 a year |
| Plans published | None | 4 |
| Maker | Not published | Not published |
| Website | casecalendar.net | deadlineengine.com |
| On legal calendaring software | #1 of 20 | #4 of 20 |
Case Calendar: what it does well
- Creates per-case ICS feeds for calendar subscriptions
- Can send events to Google Calendar or Microsoft 365
- Keeps hearing times tied to court-local time zones
- Local Ollama processing avoids per-token API costs
- Open source under Apache-2.0
What to know first
- CourtListener docket updates may be delayed
- Date extraction can miss or misread dates
- Hosted AI use can incur API costs
- Not a replacement for attorney calendaring software
Deadline Engine: what it does well
- Shows citations and calculation steps.
- Free calculator requires no account.
- Accounts for holidays and court office closures.
- Professional includes calendar feeds and matter histories.
What to know first
- Does not determine jurisdiction or rule applicability.
- Users must verify dates against rules and case facts.
- Professional costs $29.99 a month.
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