Just Formatter

Developer Blog

Practical guides for JSON formatting, JWT decoding, and document conversion workflows.

json

5 JSON Formatter Tips for Faster API Debugging

Practical JSON formatting habits that reduce debugging time when working with API responses and logs.

2026-03-064 min read
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jwt

JWT Decoder Checklist for Authentication Bugs

A quick developer checklist to verify token structure, claims, and expiry during auth issue triage.

2026-03-065 min read
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pdf to doc

Using PDF to DOC in Content Migration Workflows

How developers and ops teams use PDF to DOC conversion during document modernization projects.

2026-03-064 min read
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doc to pdf

DOC to PDF Release Checklist for Engineering Teams

A lightweight release checklist for converting technical docs to reliable, shareable PDF output.

2026-03-064 min read
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json

How to Format JSON in JavaScript

A practical guide to formatting, validating, and safely pretty-printing JSON in modern JavaScript apps.

2026-03-065 min read
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jwt

What Is a JWT Token? How to Decode It

Understand JWT structure and learn a safe decoding workflow for debugging authentication and authorization flows.

2026-03-065 min read
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json

JSON vs XML — Which Should You Use?

A practical comparison of JSON and XML for APIs, integration workflows, and long-term maintainability.

2026-03-066 min read
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json

Top 5 Free Online JSON Formatters Compared

A feature-by-feature comparison of five popular free JSON formatters, with a practical ranking for developer workflows.

2026-03-067 min read
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json

How to Fix 'Unexpected token < in JSON at position 0'

Complete diagnosis guide for the most Googled JSON error — caused by servers returning HTML instead of JSON.

2026-05-278 min read
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jwt

How to Validate JWT Signature Without a Library

Use the Web Crypto API to verify HS256 and RS256 JWT signatures natively in browser and Node.js — no dependencies.

2026-05-279 min read
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json to csv

JSON to CSV with Nested Arrays — Complete Guide

How to flatten nested JSON objects and arrays into CSV rows, handle edge cases, and build a complete converter.

2026-05-2710 min read
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doc to pdf

DOC to PDF Conversion: Preserve Formatting, Fonts, and Tables

What breaks during DOC-to-PDF conversion and how to fix it — fonts, tables, images, page breaks, and lists.

2026-05-278 min read
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jwt

Decode Firebase JWT Tokens — Step by Step

How to decode Firebase ID tokens, inspect claims, debug expiry issues, and understand the token structure.

2026-05-278 min read
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json

JSON Schema Validation vs JSON Lint — When to Use What

Understand the difference between syntax linting and schema validation, and when each approach is the right tool.

2026-05-279 min read
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json

How to Format Minified JSON in VS Code, Browser, and CLI

Every practical way to pretty-print minified JSON — VS Code shortcuts, browser DevTools, jq, Python, Node.js, and online tools.

2026-05-277 min read
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json to xml

Convert OpenAPI JSON to XML for SOAP Integration

How to transform OpenAPI JSON specs to XML and generate WSDL stubs for SOAP services and enterprise middleware.

2026-05-2710 min read
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