haskell/aeson
A fast Haskell JSON library observed · 2026-08-28
Health v2 · maintenance only
77/100
- Activity 99
- Release rhythm 35
- Longevity 100
Flags: no_releases no_license
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: 5703
- days_rel: n/a
- days_push: 8
- n_releases_24m: 0
Adoption not part of the score
1308 stars · 334 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
aeson is a fast, widely used Haskell library for parsing, encoding, and manipulating JSON data. It provides typeclass-based conversion between Haskell data types and JSON values.
Use cases
- parse JSON in Haskell
- encode Haskell data types to JSON
- decode JSON responses from an API
- manipulate JSON documents programmatically
- build JSON-based REST APIs in Haskell
When to choose
- you are writing Haskell and need JSON serialization or parsing
- you need a mature, performant JSON library with a rich ecosystem of integrations
When to avoid
- you are not working in Haskell
- you need streaming JSON parsing for extremely large documents with minimal memory use (consider specialized streaming libraries)
Facets
library · maturity stable
serialization parser parsers developer-tools web-development jvm-scripting haskell -parsing encoding decoding
1 source
- readme: https://github.com/haskell/aeson · fetched 2026-08-28 · cb1db1717b10
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| haskell/aeson | main | 77 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem