Apps similar to fx include jq, which is free and open source. Other options are JSON Crack, mq, json-log-viewer and jsonbolt. You're spoiled for choice with JSON Viewers like fx: we list more than 25 alternatives for Mac, Windows, Linux, the web and Android.
Visual JSON Editor is a JSON schema draft v4 based file editor for Windows: When opening a JSON file, the application auto-generates an editor GUI based on the provided JSON schema. The goal is to make JSON editing more effective and easier for users.
Switzerland
AllJSON is a free, fast, browser-based tool for working with JSON. It validates messy JSON, lets you explore it as an interactive tree, and turns clicked fields into BigQuery / Snowflake-style SQL — all without sending data anywhere.
Poland
EU
pjy is a command-line tool to process JSON data and execute queries on it. It is a bit like jq but with a Python syntax for queries. The syntax is much more familiar to many people and the tool is very intuitive.
Complete JSON editor for Windows with JSON syntax-coloring, auto-completion, well-formed checking, JSON to XML/CSV conversions, JSON Schema validator and more.
JSON Viewer is a native Mac app to visualize, validate and format JSON datasets in a clean and snappy interface.
JSON Hero is an open-source, beautiful JSON explorer for the web that lets you browse, search and navigate your JSON files at speed. 🚀.
JSON Online Viewer is a fast JSON tree visualizer. It is intended for small-to-medium sized JSON texts which are common in the online usage.
Free JSON & Markdown workbench — format, validate, diff, chart, generate types, test APIs. Runs 100% in your browser, no signup, no uploads.
India
A powerful macOS application designed for developers who work with JSON daily. Format and beautify messy JSON, validate syntax instantly, organize snippets in collections, convert between JSON and other formats, and quickly search through your saved snippets.
Argentina
United States
