JSON Made Simple: Format, Validate and Convert Like a Pro
JSON (JavaScript Object Notation) is how most modern apps exchange data. A tiny comma error can break everything — which is why every developer keeps a JSON toolkit bookmarked. Here is a practical workflow using free tools.
1. Format messy JSON so you can read it
Paste minified API responses into the JSON Formatter or JSON Beautifier to get clean indentation and syntax colors. Readable JSON is debuggable JSON.
2. Validate before you ship
Run the same payload through the JSON Validator. It flags the exact position of missing commas, quotes and brackets — the three culprits behind most "unexpected token" errors.
3. Explore large files visually
For thousand-line responses, the JSON Viewer renders a collapsible tree so you can drill into nested objects, while the JSON Editor lets you tweak values with validation watching your back.
4. Convert JSON to XML and back
Integrating with older systems? The JSON to XML converter and its reverse twin XML to JSON translate structures losslessly in one click.
Common JSON mistakes to avoid
- Trailing commas after the last item — illegal in strict JSON.
- Single quotes around keys — JSON demands double quotes.
- Comments inside payloads — handy for humans, fatal for parsers.
- Numbers as strings — quote only what is truly text.
Master these four steps and broken payloads stop costing you afternoons.