# 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 ```sh sudo av install brew:jello ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install jello ``` Evidence: local Homebrew formula metadata - MacPorts (94%): ```sh sudo port install jello ``` Evidence: MacPorts ports tree: sysutils/jello/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ### Linux - Debian apt (92%): ```sh sudo apt install jello ``` Evidence: Debian stable package indexes: jello from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - dnf (92%): ```sh sudo dnf install jello ``` Evidence: Fedora Rawhide package metadata: jello from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst - Nix (92%): ```sh nix profile install nixpkgs#jello ``` Evidence: nixpkgs package indexes: jello from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix ## Package facts - **Package key:** brew:jello - **Package manager:** Homebrew - **Package manager page:** - **Version:** 1.6.1 - **Source summary:** Filter JSON and JSON Lines data with Python syntax - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** MIT - **Source archive:** - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - jello (cli) - jello (alias) ## Dependencies - python@3.14 ## Install behavior - Post-install hook: not defined - Bottle: available on all ## Freshness - Page generated: 2026-07-08 - Package-manager version: 1.6.1 - Local data: ok - Upstream repository: https://github.com/kellyjonbrazil/jello - info: No package-manager update timestamp was available. - info: No cached GitHub release or tag data was available. ## 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 Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## 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 - Unix: ~/.jelloconf.py - Windows: %APPDATA%/.jelloconf.py ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** jello - **Version Scheme:** 0 - **Revision:** 1 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Other Package-Manager Records - Debian apt - jello - 1.6.0-1: normalized package name match | Debian stable package indexes: jello from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | Filter for JSON and JSON Lines data with Python syntax | https://kellyjonbrazil.github.io/jello/ - Nix - jello: normalized package name match | nixpkgs package indexes: jello from https://raw.githubusercontent.com/NixOS/nixpkgs/master/pkgs/top-level/all-packages.nix - Ubuntu apt - jello - 1.6.0-1: normalized package name match | Ubuntu 24.04 LTS package indexes: jello from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | Filter for JSON and JSON Lines data with Python syntax | https://kellyjonbrazil.github.io/jello/ - dnf - jello - 1.6.1-9.fc45: normalized package name match | Fedora Rawhide package metadata: jello from https://dl.fedoraproject.org/pub/fedora/linux/development/rawhide/Everything/x86_64/os/repodata/e5ca8ce900cd68f5419e1c39ae517343100b306336cbaeb70a3c153121d95094-primary.xml.zst | Query JSON at the command line with Python syntax | https://github.com/kellyjonbrazil/jello - MacPorts - jello: normalized package name match | MacPorts ports tree: sysutils/jello/Portfile from https://api.github.com/repos/macports/macports-ports/git/trees/master?recursive=1 ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Text processing packages](https://www.automicvault.com/pkg/text-processing-tools/) - Matched text, document, or structured-data processing metadata. - [Developer build packages](https://www.automicvault.com/pkg/developer-build-tools/) - Matched build, compiler, generator, or developer workflow metadata. - [python@3.14](https://www.automicvault.com/pkg/brew/python-3-14/) - Runtime dependency declared by Homebrew. - [jq](https://www.automicvault.com/pkg/brew/jq/) - Shares av.db curated category or tags: cli, developer-tools, json, json-processing. - [jqfmt](https://www.automicvault.com/pkg/brew/jqfmt/) - Shares av.db curated category or tags: cli, developer-tools, json, json-processing. - [jqp](https://www.automicvault.com/pkg/brew/jqp/) - Shares av.db curated category or tags: cli, developer-tools, json, json-processing. - [jtbl](https://www.automicvault.com/pkg/brew/jtbl/) - Shares av.db curated category or tags: cli, developer-tools, json, json-lines. - [rich-cli](https://www.automicvault.com/pkg/brew/rich-cli/) - Shares av.db curated category or tags: cli, developer-tools, json, python. - [abi3audit](https://www.automicvault.com/pkg/brew/abi3audit/) - Shares av.db curated category or tags: cli, developer-tools, python. - [auditwheel](https://www.automicvault.com/pkg/brew/auditwheel/) - Shares av.db curated category or tags: cli, developer-tools, python. - [austin](https://www.automicvault.com/pkg/brew/austin/) - Shares av.db curated category or tags: cli, developer-tools, python. - [remarshal](https://www.automicvault.com/pkg/brew/remarshal/) - Both packages touch the same language runtime or ecosystem. Shared terms: cli, data, developer, developer-tools, json. ## Combined YAML source View the package source record on GitHub. [combined/jello.yml](https://github.com/automic-vault/db/blob/main/combined/jello.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated configuration and credential file locations - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph