jpmens/jo
JSON output from a shell observed · 2026-08-28
Health v2 · maintenance only
35/100
- Activity 27
- 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 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 3834
- days_rel: n/a
- days_push: 439
- n_releases_24m: 0
Adoption not part of the score
4862 stars · 159 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
jo is a small C command-line utility that converts shell arguments and stdin into valid JSON objects and arrays. It handles type inference (strings, numbers, booleans, null), nesting, and pretty-printing for use in shell scripts.
Use cases
- create from shell variables
- produce valid in bash scripts
- build payloads for curl or mqtt from the command line
- convert seq output into a array
- generate nested objects in one-liners
When to choose
- you need to emit JSON from shell scripts without fragile string escaping
- you want a tiny, fast, dependency-free binary available in most package managers
- you need type-aware JSON construction (numbers, booleans, null) from CLI arguments
When to avoid
- you need to query or transform existing JSON rather than create it (use jq instead)
- you need streaming or very large document processing
- you work primarily in a language with native JSON libraries
Facets
cli-tool · maturity stable
serialization cli developer-tools developer-tools windows bsd cli cross-platform -generation shell-scripting unix-utility command-line automation linux macos
3 sources
- readme: https://github.com/jpmens/jo · fetched 2026-08-28 · 6029b3e4d36c
- homepage: http://jpmens.net/2016/03/05/a-shell-command-to-create-json-jo/ · fetched 2026-08-29 · b63a0f7c9323
- site_page: https://jpmens.net/pages/about · fetched 2026-08-29 · 57ea5877492c
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| jpmens/jo | main | 35 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem