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Storage & Files
Persist data and work with files: OPFS, IndexedDB, quotas, pickers, streams.
Probing 6 capabilities…
Origin Private File System
Probing…A private, origin-scoped filesystem with fast synchronous access from workers.
IndexedDB
Probing…Transactional object database for large structured data.
Cache Storage
Probing…Store request/response pairs — the backbone of offline apps.
Storage Quota & Persistence
Probing…Inspect how much you can store and request persistent (non-evictable) storage.
File System Access
Probing…Open and save real files on the user's disk via native pickers.
Compression Streams
Probing…Gzip/deflate compression and decompression as native streams.