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JSONEditor.io

Free plan Web

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JSONEditor.io's own site

What JSONEditor.io is

JSONEditor.io is a web-based tool for editing, viewing, formatting, validating, repairing, querying, transforming, and converting JSON. Its Monaco Editor-based interface offers text, tree, and table modes for working with JSON. The editor can convert between JSON, YAML, CSV, and TypeScript, and includes schema validation and JSON comparison. The homepage states a maximum file size of 512 MB and says the editor can be used offline to work on JSON files. The Free plan costs nothing, requires no signup, and is described as having no usage limits or premium tiers. The privacy policy says documents and preferences are kept locally in the browser unless a user chooses to share them. Cloud storage and shareable links are also described, with private cloud documents accessible only to their owner. AI tools can generate, modify, and fix JSON, though AI use may involve external processing under third-party privacy policies. The site may collect anonymous usage statistics and uses Google AdSense and advertising cookies. JSONEditor.io is a product of Polyxmedia Ltd.

Who it suits

JSONEditor.io suits developers, data analysts, DevOps engineers, and API designers who need to inspect or transform JSON. It is also a fit for people who want browser-based editing with text, tree, or table views and offline use.

What it does well

  • Free plan requires no signup and has no usage limits.
  • Work with JSON in text, tree, and table modes.
  • Convert between JSON, YAML, CSV, and TypeScript.
  • Includes schema validation, comparison, repair, querying, and transformation.
  • Offline use and local browser storage are supported.
  • AI assistance can generate, modify, and fix JSON.

What to know first

  • The listed platform is web only.
  • AI use may involve external processing.
  • The site uses advertising cookies and Google AdSense.

Limits

The Free plan is described as having no usage limits or premium tiers. The homepage states a maximum file size of 512 MB.

Plans

PlanBilled and limitsPrice
FreeNo signup · no usage limits or premium tiers · up to 512 MB stated on homepageFree

As jsoneditor.io lists them, read 8 Oct 2026. The maker's own page has the final word.

Getting started

  1. Open https://jsoneditor.io/ in a web browser.
  2. Start using the Free plan without signing up.
  3. Work with JSON in text, tree, or table mode.
  4. Use offline editing for JSON files when needed.

Verdict

Choose JSONEditor.io for a no-signup web editor with multiple JSON views, schema validation, conversion, and offline use. Consider its AI processing and advertising practices if those affect how you handle documents or preferences.

Questions

How much does JSONEditor.io cost?

The Free plan is listed as free.

Is signup required?

No. The Free plan is described as requiring no signup.

What platforms does it support?

The listed platform is web.

Can it validate or compare JSON?

Yes. Schema validation and JSON comparison are listed features.

Can it convert other formats?

Yes. It supports conversion between JSON, YAML, CSV, and TypeScript.

Who makes JSONEditor.io?

It is a product of Polyxmedia Ltd.

Facts from JSONEditor.io's own pages

AI assistance
The editor offers AI assistance to generate, modify, and fix JSON; the maker says AI use may involve external processing. · jsoneditor.io, 8 Oct 2026
Analytics and advertising
The privacy policy says the site may collect anonymous usage statistics and uses Google AdSense and cookies for advertising. · jsoneditor.io, 8 Oct 2026
Cloud sharing
The homepage describes cloud storage and shareable links, and says private cloud documents are accessible only to their owner. · jsoneditor.io, 8 Oct 2026
Conversions
The editor supports conversion between JSON, YAML, CSV, and TypeScript. · jsoneditor.io, 8 Oct 2026
Editing experience
The maker describes a VS Code-like editing experience powered by Monaco Editor. · jsoneditor.io, 8 Oct 2026
File size
The homepage states a maximum file size of 512 MB. · jsoneditor.io, 8 Oct 2026
Intended users
The maker identifies developers, data analysts, DevOps engineers, and API designers as users of the editor. · jsoneditor.io, 8 Oct 2026
Maker
JSONEditor.io is a product of Polyxmedia Ltd. · jsoneditor.io, 8 Oct 2026
Offline
The maker says the editor can be used offline to work on JSON files. · jsoneditor.io, 8 Oct 2026
Other features
The maker lists schema validation, JSON comparison, repair, querying, and transformation features. · jsoneditor.io, 8 Oct 2026
Privacy
The privacy policy says documents and preferences are stored locally in the browser and do not leave the device unless the user chooses to share them. · jsoneditor.io, 8 Oct 2026
Purpose
JSONEditor.io is a free, browser-based editor for editing, viewing, formatting, validating, and converting JSON. · jsoneditor.io, 8 Oct 2026
Support
The maker invites feedback and support inquiries by email at [email protected]. · jsoneditor.io, 8 Oct 2026
Third-party processing
The privacy policy says data used with third-party services such as AI assistants may be processed under those providers’ privacy policies. · jsoneditor.io, 8 Oct 2026
Views
Users can view and edit JSON in text, tree, and table modes. · jsoneditor.io, 8 Oct 2026

Where JSONEditor.io stands on Freedom251

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