Project workflows
Each lab has its own project and export model.
Logic, Relay, Electricity, and Analog do not use one interchangeable file format. Check the lab and current plan before relying on an import, download, image, or netlist workflow.
Format matrix
Import, export, persistence, and delivery
Export controls depend on the current plan. Logic .digi project download is available without a paid export entitlement; rendered exports remain plan-controlled.
| Workflow | Logic | Relay | Electricity | Analog |
|---|---|---|---|---|
| Project document | .digi JSON | Versioned binary .relay | Versioned internal digisim-lab JSON; not a user project file | Versioned .analog.json project |
| File import/download | Import and Free local .digi download | Own .relay downloads are free within the circuit allowance; compatible imports supported | No learner file import or download UI confirmed | Project import/export where the plan enables it |
| Other exports | Rendered exports are plan-controlled | PNG and raster-wrapped SVG are plan-controlled | No learner image or project export UI confirmed | SPICE-like .cir netlist export is plan-controlled |
| Guest persistence | IndexedDB plus optional file workflows | One browser-local draft; browser storage can be cleared or evicted | One browser-local draft | One browser-local draft |
| Cloud workflow | Authenticated save subject to account quota | Authenticated save, duplicate and quota management | Authenticated save subject to account policy | Authenticated save, duplicate, delete and quota management |
| Sharing | Gallery, unlisted links, viewer and embed | Revocable public UUID viewer, editor handoff and iframe embed | Expiring unlisted clone-to-edit link | No public sharing or embed confirmed |
Archival guidance
Keep the native project when future editing matters
An image or netlist is not always a complete substitute for the native editor document. For important work, retain the native project where export is available, record the originating lab, and keep a rendered reference image when useful.
- Do not rename one lab's extension to another.
- Open older files in the originating lab, work from a copy, and verify migrated content before replacing the original.
- A browser draft is convenient local state, not an institutional backup guarantee.
Sharing boundary
Unlisted does not mean access-controlled
Logic and Electricity unlisted links can be opened by anyone who has the URL. Relay's UUID viewer is also publicly accessible while its share remains active, although the owner can revoke it. Use exported files and your institution's approved storage process when the recipient list must be controlled.
Choose a lab before choosing a file workflow.
The comparison page relates formats to simulation models, guided content, persistence, sharing, and access policies.