Offline working in EasyEDA is far from perfect but it is possible. :) To work offline, you need to have first saved a copy of your work to your local storage using: **Document > EasyEDA Source** then click on the **Download** button. When offline, you can then do: **Document > EasyEDA Source** and paste the contents of your local.json files into the EasyEDA Source window and then click **Apply**. You can then work on them in the appropriate Editor and save them back out using **Document > EasyEDA Source** again. If you have ngspice or LTspice installed on your local machine, you can also run EasyEDA simulations at the netlist level using: **Super Menu > Miscellaneous > Netlist for Document > spice...** and then copying and pasting the conents of the page that opens, into a text editor (or directly into a spice text panel in LTspice). For LTspice, you will need to do a small amount of editing to delete the .control, probe, quit, .endc and any analysis (such as tran or ac) statetments and then use `Edit Simulation Cmd.` from the LTspice right click menu. (This may be easier than manually editing the EasyEDA analysis statements to get them into an LTspice syntax format.) Please remember: - EasyEDA Source and netlist files can only be generated and exported from EasyEDA when online. - Whilst it is possible to import a range of files from which to create or reconstruct a schematic in EasyEDA, it is not possible to reconstruct an EasyEDA schematic from an imported spice netlist. - LTspice may not support all the models that are used in EasyEDA (in particular the ngspice XSPICE models used for EasyEDA logic devices are incompatible with those used in LTspice); - By understanding the EasyEDA file format, it is possible to edit .json format EasyEDA Source files in a text editor. - It is also possible to perform scripted editing that is more powerful than that possible through the normal GUI. For more on this please see: https://easyeda.com/Doc/Open-File-Format/ Also: **Super Menu > MIscellaneous > Scripts...** and: **Super Menu > MIscellaneous > Run Script Code...**