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David
David

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Stop Installing JSON Extensions — There's a Faster Way

#json #devtools #webdev #productivity

Here's a pattern I see constantly:

  1. Open browser
  2. Search "JSON formatter"
  3. Click the first result
  4. Get hit with cookie banners, ads, and a "Premium" upsell before you can paste anything
  5. Install a browser extension instead
  6. Extension requests "access to all websites" permission
  7. Mildly question your life choices

There has to be a better way. And there is.

jsonformat.co — The 3-Second JSON Workflow

jsonformat.co does exactly three things:

  1. Format — turn spaghetti JSON into readable, indented JSON
  2. Validate — instantly highlights syntax errors with line numbers
  3. Minify — compress formatted JSON back down for production

That's it. No signup. No ads. No "upgrade to format files >1MB."

When You Actually Need This

Debugging API responses:
Your API returns a 2000-character single-line JSON blob. You need to find one nested field. Paste → format → find it in 5 seconds.

Validating config files:
Edited a package.json or tsconfig.json by hand? Paste it in. If there's a missing comma on line 47, you'll know immediately.

Cleaning up logs:
Application logs dump JSON on a single line. When you're tailing logs and need to actually read a specific entry, paste → format → done.

Sharing with teammates:
Need to post a JSON payload in Slack or a PR comment? Format it first so your code reviewer doesn't curse your name.

Why Not Just Use jq?

jq is great. I use it daily. But sometimes:

  • You're on a machine without jq installed
  • You're in a meeting sharing your screen and need something formatted NOW
  • The person asking you "what does this JSON say?" doesn't know what a terminal is

A browser-based formatter is complementary to CLI tools, not a replacement.

Why Not a Browser Extension?

Extensions work fine until:

  • They request permissions you're not comfortable granting
  • They stop being maintained and become a security risk
  • You switch to a new machine/browser and forget to reinstall
  • Your company's security policy blocks extensions

A bookmark works everywhere, forever.

The Developer Tool Philosophy

jsonformat.co is part of a collection of single-purpose dev tools (including base64decode.co, createuuid.com, hashgenerator.co, and others). They all follow the same approach:

  • One tool, one job, done well
  • No accounts or tracking
  • Works on any device with a browser
  • Free, forever

Sometimes the best developer tool is the one that gets out of your way.

What's your JSON formatting setup? Pure CLI with jq, browser tool, editor plugin? Curious what people are actually using in 2026.

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