michalmuskala/jason
Some data may be outdated — see provenance labels.
A blazing fast JSON parser and generator in pure Elixir. observed · 2026-09-21
Health v2 · maintenance only
55/100
- Activity 72
- Release rhythm 8
- Longevity 100
Flags: no_license
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3425
- days_rel: n/a
- days_push: 168
- n_releases_24m: 0
Adoption not part of the score
1681 stars · 179 forks observed · 2026-09-21
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
Jason is a fast, standards-compliant JSON parser and generator written in pure Elixir. It is the default JSON codec for many Elixir ecosystem libraries such as Ecto, Phoenix, and Postgrex.
Use cases
- encode elixir maps to
- parse strings in elixir
- fast serialization for phoenix apis
- codec for ecto and postgrex
- rfc 8259 compliant handling
When to choose
- you need a fast pure-elixir library without native NIF dependencies
- you use Phoenix, Ecto, or Postgrex and want the ecosystem default
- standards compliance and extensive test coverage matter
When to avoid
- you need maximum raw speed and are comfortable with C NIFs like jiffy
- you need non-standard extensions or custom decoding options
Facets
library · maturity stable
serialization parser developer-tools apis web-development elixir encoder decoder pure-elixir rfc-8259
1 source
- readme: https://github.com/michalmuskala/jason · fetched 2026-09-21 · 7a1cd00a9767
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| michalmuskala/jason | main | 55 |
For agents
markdown · JSON · MCP: product_card(name="michalmuskala/jason")
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem