JSON formatter
Formatted JSON appears here.
Key takeaways
- Strict JSON only — the same rules your integrations and Zapier webhooks expect.
- Two indent widths cover most repos and API docs without extra configuration.
- Horizontal scroll on small screens is isolated to the result panel, not the whole page.
- Great for cleaning a webhook payload before you paste it into Slack or a ticket.
- No account: use it from the truck, the office, or a client site on cellular.
Who built this
ContractorHQ is edited by Bernard Guido — 25+ years in trade operations and software. These utilities follow the same quality bar as our reviews: fast pages, honest disclosure, and tools that stay useful without selling your data.
Frequently asked questions
Is large JSON safe here?
Parsing runs in your browser tab only. Very large payloads can still slow your phone, so for huge logs prefer a desktop editor. We do not upload your JSON to ContractorHQ servers in this tool.
Why did I get a parse error?
JSON.parse requires strict JSON: double quotes on keys, no trailing commas, and no comments. If you pasted JavaScript object literal syntax or YAML, convert it first or wrap strings properly before formatting.
Can I minify instead of pretty-print?
This version focuses on validate plus readable indent. After a successful format you can copy the result into any minifier, or we can add a minify button later if teams use it daily from the field.
Does this work offline?
After the page loads once, formatting works without new network calls until you refresh. Airplane mode will still allow formatting of text already in the textarea.