Hatch Log
Record egg-to-pet outcomes with the conditions needed to compare later. Your log stays on this device until you export or clear it.
Evidence-chain check
Both labels are required before this can be saved as an observed outcome.
- Checks complete
- 0 / 5
- Next capture
- Copy the complete Egg label and the resulting Pet label from the same hatch.
Local hatch record
Total observed hatches on this device.
Saved hatches
Observed share in this personal log is not the game's hatch probability. Legacy records remain visible as outcome-only evidence.
Move records between devices with Export JSON and Import JSON.
| Hatched | Evidence | Egg | Pet | Source / server | Growth | Egg → Pet weight | Rarity | Size / mutation | Income | Notes |
|---|
Use the log as evidence
One complete self-recorded chain proves a possible observed result under those conditions. Repeated controlled observations can suggest questions worth testing, but official odds require creator-owned data or a much stronger sampling method.
Hatch Log FAQ
What makes an Egg-to-Pet hatch record complete?
A complete self-recorded chain includes the exact Egg and Pet labels, Egg-observed and hatch-result times, source or biome, one server or test label, the visible growth timer, and confirmation that the same hatch stayed in one continuous capture.
Does one Hatch Log record prove hatch odds?
No. One continuous chain can prove that one observed result was possible under those recorded conditions. It does not establish probability, a guaranteed outcome, or the complete hatch pool.
Are old Hatch Log records preserved?
Yes. Older records without evidence-chain fields remain available and are labeled as outcome-only records until the missing context is added in a future observation.
Does the Hatch Log upload screenshots or connect to Roblox?
No. Records stay in browser storage unless you explicitly use Cloud Save or export a JSON or CSV file. The tool does not read a Roblox server or upload screenshot files.