JSON Pretty
Pretty-print JSON.
How to use JSON Pretty
JSON Pretty — Format JSON with two-space indentation and a collapsible tree so nested objects are easier to read. Free to use in D2i DevTools — no account required.
Steps
- Fill in JSON. This field is required.
- Click Run and copy the result under the form.
Frequently asked questions
What is JSON Pretty used for?
Use it to inspect an API response, a config file, or a one-line JSON blob before you diff or edit it.
How do I use the free online JSON Pretty tool?
Fill in JSON. This field is required. Click Run and copy the result under the form.
What can I paste or upload into JSON Pretty?
Paste one JSON value: an object, array, string, number, true, false, or null. Comments and trailing commas are rejected.
What output does JSON Pretty give me?
Indented JSON, plus a tree you can expand. Invalid JSON shows an error instead of a partial format.
Is JSON Pretty free, and is my input private?
Yes — Your input is processed in memory for this request only. It is not saved to disk or the database, and it is cleared after the tool finishes.
Does pretty-print change the data?
No. Object key order and values stay the same. Only whitespace is added. A key that appears twice keeps the last value, which is how Go parses JSON.
Inputs are processed in memory only and are not saved to disk or the database. Data exists only for the duration of your request.