JSONLint
JSONFormatter.org
JSON Formatter & Validator
CodeBeautify
JSON Crack
FreeFormatter
10015.io
View, edit and format JSON online

Free Dev Tools Studio
CodeTray.dev
DeveloperToolBox.tech
DeveloperTools.Tech
DevLab.tools
DevNestTools
DevTool.io
Free, fast, and practical developer tools that run instantly in your browser. JSON, encoding, hashing, time, and more.

Which is more popular?
Based on our record, JSON Editor Online seems to be more popular. It has been mentioned 23 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
JSO
JSON Editor Online
|
|
|
|---|---|---|
| Website | jsoneditoronline.org | codingtool.dev |
| Pricing | ||
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
No features have been listed yet.
How often each product is chosen within a category, 0–100% relative to the other.

As answered by people managing JSON Editor Online and CodingTool.dev.
CodingTool.dev's answer:
CodingTool.dev brings 330+ developer utilities into one fast, privacy-focused platform. Most tools run locally in the browser, while tools that require network or server processing clearly disclose it. There is no signup, no installation, and no paywall. The platform also supports multiple languages and covers everything from data conversion and API debugging to security, productivity, PDF, browser, and AI developer tools.
CodingTool.dev's answer:
CodingTool.dev focuses on three things: breadth, privacy, and zero friction. Instead of switching between many single-purpose websites, developers can access hundreds of tools from one consistent interface. Most processing happens locally in the browser, processing boundaries are clearly disclosed, and users can start immediately without creating an account or installing anything. All tools are free to use.
CodingTool.dev's answer:
CodingTool.dev is primarily built for software developers and technical professionals, including frontend, backend, full-stack, DevOps, QA, security, and API engineers. It is also useful for students, technical creators, and anyone who frequently works with code, structured data, APIs, files, debugging, or developer workflows.
CodingTool.dev's answer:
CodingTool.dev started from a simple frustration: having to jump between dozens of websites for everyday development tasks such as formatting JSON, decoding data, testing regular expressions, or generating hashes.
As a full-stack developer, I wanted a single place where these utilities were fast, trustworthy, and easy to use without registration or unnecessary data uploads. What began as a small collection of tools gradually grew into CodingTool.dev, which now provides 330+ utilities for developers.
The guiding principle remains simple: build tools that are genuinely useful in everyday development work.
CodingTool.dev's answer:
CodingTool.dev is primarily built with Next.js 15, React 19, TypeScript, Tailwind CSS, shadcn/ui, and next-intl. The platform uses the Next.js App Router and is designed around a local-first architecture, with most deterministic processing performed directly in the browser.
CodingTool.dev's answer:
CodingTool.dev is a free, self-service platform with no required user accounts, so we do not maintain or publicly disclose a list of named customers. It is used by developers across startups, independent projects, and enterprise environments.
Share your experience with using JSON Editor Online and CodingTool.dev. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

I love json tools, I use several like https://jsoneditoronline.org/. - Source: Hacker News / about 2 years ago
This error is harmless. However, your configuration file is malformed. What u/mart1d4 said is right that the custom settings are for custom games mode (not hard). Start with the default config. You can use: https://jsoneditoronline.org/... Source: over 3 years ago
Download the text file with curves from this thread: https://www.avsforum.com/threads/announcing-ratbuddyssey-a-tool-for-tweaking-audyssey-multeq-app-files.3006886/post-62226147Save your .ady file and open it here:... Source: over 3 years ago
Tracking CodingTool.dev since Oct 2026.
When comparing JSON Editor Online and CodingTool.dev, you can also consider the following products.

JSON Lint is a web based validator and reformatter for JSON, a lightweight data-interchange format.
Compare JSONLint to JSON Editor Online or CodingTool.dev:

FreeDevTools- Your digital Swiss Army knife: security, coding, design, and media tools. 50 tools free to use. No signup required.
Compare Free Dev Tools Studio to JSON Editor Online or CodingTool.dev:

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
Compare JSONFormatter.org to JSON Editor Online or CodingTool.dev:
Fast, free developer tools. JSON formatter, Base64, JWT, Regex and more. Runs 100% in your browser.
Compare CodeTray.dev to JSON Editor Online or CodingTool.dev:

The JSON Formatter was created to help with debugging.
Compare JSON Formatter & Validator to JSON Editor Online or CodingTool.dev:

Free browser-based tools for formatting, encoding, decoding, conversion, generators and everyday software development tasks.
Compare DeveloperToolBox.tech to JSON Editor Online or CodingTool.dev: