Epos provides a zero-config experience and powerful features designed to work across all execution contexts with no extra setup.
Install Epos from Chrome Web Store.
Link a local project folder.
Epos executes your code in the browser.
Click Export and get ZIP bundle.
Use one messaging API across popup, background, side panel, web pages, and frames.
Keep data synchronized across contexts and persist it between sessions.
Use supported chrome.* APIs in web pages and iframes through one consistent API surface.
Store JSON, blobs, and files in persistent IndexedDB-backed storage.
Load bundled assets and work with hidden background frames when you need a real page context.
Describe where code should load in epos.json and let Epos generate the final manifest for you.