macOS
Homebrewverified · 100%
brew install jellolocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install jelloMacPorts ports tree · sysutils/jello/Portfile · source: api.github.com
brew
Install jello with Homebrew, apt, dnf, MacPorts, Nix
Filter JSON and JSON Lines data with Python syntax. Version 1.6.1 via Homebrew; verified from local package data.
install
Additional install commands
Linux
Debian aptverified · 92%
sudo apt install jelloDebian stable package indexes · jello · source: deb.debian.org
Fedora dnfverified · 92%
sudo dnf install jelloFedora Rawhide package metadata · jello · source: dl.fedoraproject.org
Nixverified · 92%
nix profile install nixpkgs#jellonixpkgs package indexes · jello · source: raw.githubusercontent.com
overview
Package summary
Filter JSON and JSON Lines data with Python syntax
Project links
Commands and aliases
- jello
history
Project history and usage
jello is a command-line JSON and JSON Lines filter that uses Python expressions instead of jq's filter language. The README describes it as similar to jq, but with standard Python dict and list syntax.
Project history
Kelly Brazil introduced jello in March 2020 as part of a set of structured-data command-line tools that also included jc and jtbl. In the author blog post, Brazil explains that jq is useful but that Python list and dictionary syntax can be easier for deeply nested structures.
The project changelog records an initial release on March 24, 2020 and version 1.0.0 on April 1, 2020. Subsequent releases added raw output, line output, custom initialization, schema output, color controls, Windows fixes, dot notation, file input, query files, and raw-string ingestion.
Adoption history
jello spread through Python and OS package channels. The README documents installation through pip, OS repositories, Windows MSI packages, GitHub release binaries, and Homebrew, while the batch input records packages in Homebrew, Debian, Fedora, MacPorts, Nix, and Ubuntu.
How it is used
Users pipe JSON or JSON Lines into jello, where the parsed data is available as the underscore object. Queries can be Python expressions, comprehensions, loops, or code loaded from a query file, and output can be JSON, JSON Lines, bash-array-friendly lines, or a grep-able schema.
Why package nerds care
jello is package-nerd significant because it belongs to the post-jq wave of structured-text CLI tools: it keeps Unix pipes and JSON filters, but chooses the host language many operators already know. It pairs naturally with jc, which turns command output into JSON, and jtbl, which turns JSON back into terminal tables.
Timeline
- 2020: Initial release 0.1.5 was recorded on March 24.
- 2020: Author blog post introduced jello as a Python-syntax jq alternative on March 25.
- 2020: Version 1.0.0 removed the need to assign the result to r.
- 2021: Version 1.3.0 added dot notation and larger-data performance improvements.
- 2023: Version 1.6.0 added direct JSON or JSON Lines file input and query files.
- 2025: Version 1.6.1 added raw-string ingestion and richer runtime/query error information.
Related projects
- Related projects include jq, the comparison point in the README and blog post; jc and jtbl, Brazil's adjacent structured-data CLI tools; and Jello Explorer, also called jellex, which the README lists as a TUI built on jello.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 1 platform targets.
- Installs with 1 runtime dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
local files
Configuration and credential file locations
These source-backed paths show where this package keeps local settings or durable credentials. Automic Vault can use them as review targets for secret scanning, migration, and command approval.
Configuration files
Config paths the tool may read or write during local use.
- Unix
~/.jelloconf.py- Windows
%APPDATA%/.jelloconf.py
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
jello | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version1.6.1
manager updated
local dataok
upstreamnot checked
latest detectednot detected
https://github.com/kellyjonbrazil/jello
- infoNo package-manager update timestamp was available.low confidence
- infoNo cached GitHub release or tag data was available.https://github.com/kellyjonbrazil/jellonone confidence
install metadata
Package metadata
| Package key | brew:jello |
|---|---|
| Version | 1.6.1 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/jello |
| Homepage | https://github.com/kellyjonbrazil/jello |
| Repository | https://github.com/kellyjonbrazil/jello |
| Upstream docs | https://github.com/kellyjonbrazil/jello#readme |
| License | MIT |
| Source archive | https://files.pythonhosted.org/packages/fb/5e/fe41641ce367cb8b57a6514372fffd7aed4a8c916cd7dc0bb7e9ae8f6ae2/jello-1.6.1.tar.gz |
| Dependencies | python@3.14 |
| Bottle | available (on all) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | jello |
| Version Scheme | 0 |
| Revision | 1 |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Debian apt95%
jello 1.6.0-1
Filter for JSON and JSON Lines data with Python syntax
https://kellyjonbrazil.github.io/jello/
sudo apt install jello- Section: text
- Architecture: all
- 2 dependencies
- normalized package name match
- Matched by: Jello
Nix95%
jello
nix profile install nixpkgs#jello- normalized package name match
- Matched by: Jello
Ubuntu apt95%
jello 1.6.0-1
Filter for JSON and JSON Lines data with Python syntax
https://kellyjonbrazil.github.io/jello/
sudo apt install jello- Section: universe/text
- Architecture: all
- 2 dependencies
- normalized package name match
- Matched by: Jello
dnf95%
jello 1.6.1-9.fc45
Query JSON at the command line with Python syntax
https://github.com/kellyjonbrazil/jello
sudo dnf install jello- License: MIT
- Category: Unspecified
- Architecture: noarch
- Source Package: jello
- 3 dependencies
- 3 provides
- normalized package name match
- Matched by: Jello
MacPorts95%
jello
sudo port install jello- normalized package name match
- Matched by: Jello
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated configuration and credential file locations
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment