A simple script to convert your notes from Simplenote to Zim Desktop Wiki.

1. Export your Simplenote at Settings > Tools > Export Notes
2. Unzip the notes.zip file somewhere
3. Find the file notes.json inside the source directory
4. Run simplenote_to_zim.py notes.json

The script reads the Simplenote JSON file, extracts the notes’ contents and metadata, and exports them to the Zim Wiki format in the same directory. It generates a file header with a timestamp, sets the note’s title to the first line of the content, and converts existing tags to the Zim @tag format. The script also sanitizes the filename according to Zim settings. Please refer to the example output below.

Note that notes in Simplenote's trash are not converted.

Content-Type: text/x-zim-wiki
Wiki-Format: zim 0.6
Creation-Date: 2023-01-19T09:11:27+01:00

====== Title of the note ======
Created Thursday 19 January 2023

@tagthis @tagthat

Contents of the note.