Show HN: De-Spark, migrate a GitHub Spark export off the private SDK

De-Spark, a new tool launched on Hacker News, migrates GitHub Spark exports off the private @github/spark SDK, replacing imports with local alternatives so the app can npm install and build. The tool scans the export to identify uses of spark.kv, spark.llm, and spark.user, then rewrites them to use localStorage, a user-provided API key, and a stub, respectively. It is a paid service processed in memory, with payments handled by Polar.

de-spark Your exported Spark app can't npm install : it depends on the private @github/spark package. Upload your export, see exactly what breaks for free, and get a working repo back. Follow-ups Three things: spark.kv and useKV your data , spark.llm and spark.llmPrompt AI features, already broken since GitHub Models retired , and spark.user your GitHub identity . The scan below tells you exactly which files use which. You pay once, we rewrite every @github/spark import to a local replacement localStorage for data, your own API key for AI, a stub for auth , then hand you back a repo that installs and builds normally. Payments handled by Polar. Your code is processed in memory to run the migration and is not stored afterward.