JSON tools

Online JSON editor & validator — format, view, minify & compress

Edit and lint JSON directly in the browser with tree view, search, and Base64 Gzip encode/decode. Ideal for APIs, webhooks, AI payloads, and configs.

Validator Formatter & minifier Tree view Search navigation Base64 Gzip

What you can do

  • Validate JSON with instant feedback and friendly errors.
  • Format or minify for readability or smaller payloads.
  • Navigate matches with search to find keys, IDs, or values.
  • Inspect nested objects and arrays with the tree view.
  • Encode or decode Base64 Gzip for API-ready payloads.

Quick guide

  1. Paste or type your JSON and check the status line for errors.
  2. Click Format or Minify depending on readability or size.
  3. Use search (Ctrl/Cmd + F) to jump through matches.
  4. Encode to Base64 Gzip for sharing, or decode to bring data back.

Designed to stay crawlable so search engines index “online JSON editor, tree view, gzip base64, formatter, validator”.

Use cases and semantic context

Perfect for debugging REST/GraphQL APIs, reviewing webhooks, validating microservice configs or schemas, cleaning data before queues/serverless, and checking AI-generated JSON responses.

  • Debug payloads in integrations and automations.
  • Prepare messages for queues, Lambdas or serverless functions.
  • Document consistent, compressible examples for docs/PRs.

Frequently asked questions about the JSON editor

How do I validate and format JSON?

Paste your JSON, fix any errors shown, and use the Format or Minify buttons to adjust readability or size.

Can I compress JSON to Base64 Gzip?

Yes. Encode converts your JSON into a compressed Base64 string; Decode lets you paste any Base64 Gzip to decompress it back into the editor.

How do I navigate matches inside the JSON?

Open the search bar, type what you need to find, and use next/previous controls to highlight and move through each match.