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pilgr/Paper

Paper is a fast NoSQL-like storage for Java/Kotlin objects on Android with automatic schema migration support. observed · 2026-08-28

github.com/pilgr/Paper · Java · Apache-2.0 (permissive) observed · 2026-08-28

Health v2 · maintenance only

23/100

  • Activity 0
  • Release rhythm 8
  • Longevity 100
How is this computed?

round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.

  • gap_med: n/a
  • age_days: 4101
  • days_rel: n/a
  • days_push: 1335
  • n_releases_24m: 0

Full methodology

Adoption not part of the score

2343 stars · 235 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Paper is a fast, NoSQL-like object storage library for Android that persists Java/Kotlin classes as-is, without annotations or boilerplate. It handles limited schema changes (added/removed fields) automatically on read.

Use cases

  • store java objects on android without writing sql
  • persist kotlin data classes locally
  • nosql key-value storage for android app
  • save and load lists of objects on android
  • local cache with automatic schema migration
  • simple object database for android app

When to choose

  • you want to persist plain Java/Kotlin objects with zero annotations or configuration
  • your data model changes occasionally and you want automatic handling of added/removed fields
  • you need fast key-based object storage rather than relational queries

When to avoid

  • you need complex queries, indexes, or relational data — use Room or SQLite instead
  • you frequently change field types in your data classes, which Paper does not support
  • you need cross-platform storage beyond Android

Facets

library · maturity maintenance

database serialization mobile-development databases android-tools nosql object-storage kotlin schema-migration key-value-store android

1 source

Member repositories

RepositoryRoleHealth v2
pilgr/Papermain23

For agents

markdown · JSON · MCP: product_card(name="pilgr/Paper")

Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem