gojq vs JSON OS

gojq is a free, MIT-licensed Go implementation of the jq command, with a library for embedding queries in Go products. The command-line tool applies jq-style queries to JSON, including filtering, field selection, updates, and multiple input values. It reads YAML and can produce YAML output. Integer arithmetic uses arbitrary precision for addition, subtraction, multiplication, modulo, and divisible division. The project describes gojq as portable and supports Linux, macOS, Windows, and self-hosted use. Documented installation routes include Homebrew, mise, Zero Install, source builds, and Docker images. Go applications can parse and run queries, compile them for reuse, and configure custom functions and iterators. Environment-variable access and module loading are disabled by default for library queries and require configured loaders. gojq does not preserve object key order and lacks some jq extensions, flags, functions, and regular-expression behavior.

JSON OS is a free, browser-based workbench that pairs a JSON editor with Markdown Studio, a Markdown previewer. The maker says it needs no signup and that processing runs locally in a Web Worker, with data stored in IndexedDB and nothing leaving the device. The JSON workspace supports up to three panes and can open or accept dropped files. Data can be viewed and edited as a tree, text or table, with table columns switched independently. The editor formats, beautifies, minifies and sorts JSON keys, validates against JSON Schema with Ajv format checks, and repairs malformed input such as smart quotes, comments and unclosed brackets. It compares two documents side by side and supports MongoDB-style filters; JSON arrays can be exported to CSV with a UTF-8 BOM. Markdown Studio supports GitHub-Flavored Markdown, Mermaid, KaTeX, highlighted code and embeds from services including YouTube, Vimeo and GitHub Gist. It sanitizes rendered HTML through DOMPurify, stripping scripts and untrusted iframes. Markdown can be exported as source, copied as rendered HTML or downloaded as standalone HTML.