The short version
A format for single-file web apps that store their data inside SQLite.
From the HackerLinks archive
Capsule
A format for single-file web apps that store their data inside SQLite.
At a glance:
First seen:2026-09-16
Last seen:2026-09-16
Times seen:1
Website:withcapsule.app
Why it caught our attention
A commenter endorsed the project and connected it to portable agent-built artifacts.
Where it surfaced on Hacker News
2026-09-16
“Looks neat. Shuffling artifacts around is more important than ever with all the agentic web sites and apps we are making.”
nzoschke · recommendation · evaluated
Direct HN comment
Show HN: Capsule – Single-file web apps that save their data into SQLite
Also surfaced in this discussion
Chrome Labs Text Editor
Show HN: Capsule – Single-file web apps that save their data into SQLite
2026-09-16