Sites and apps similar to Format JSON Online include JSON Sage, which is free. Other options are JSON BANG!, JSON Editor Online, THEJORD and Alljson. You can choose from more than 10 JSON Viewers like Format JSON Online for self-hosting and Windows.
JSON Sage is a free online tool that helps developers visualize, validate, format, and edit JSON data instantly. It features a clean and modern interface with both tree view and code editor view, making it easy to explore and manipulate complex JSON structures.
Transform complex JSON into interactive diagrams. Delete nodes, rename keys, view structured tables, and get instant JSON statistics.
JSON Editor Online is a web-based tool to view, edit, and format JSON. It shows your data side by side in a clear, editable treeview and in a code editor.
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
Online JSON Formatter and JSON Validator will format json data, and helps to validate, convert JSON to XML, JSON to CSV. Save and Share JSON.
India
A powerful online JSON formatter, editor and validator with multiple visualization modes including code, tree, table and graph views, making JSON debugging and manipulation effortless.
CapyToolkit is a collection of 45+ free browser tools engineered to run entirely client-side. All operations execute locally via native browser APIs, Web Workers, and WASM, ensuring that data, logs, and cryptographic keys never reach an external server.
United States
A free web app providing 200+ online tools for developers, including JSON formatters, PDF mergers, code converters, data generators, and more—no signup required.
UnblockDevs is a free suite of developer tools that runs 100% in your browser — nothing is sent to servers, no signup required.
United States
JSONReader provides a suite of powerful tools to manipulate, format, validate, and beautify JSON data efficiently. Whether you're a developer, data analyst, or just working with JSON, our tools ensure a seamless experience.
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.
Italy
