Launched April 16, 2024
JSON Lint
Easiest JSON Formatter & Validator Tool
Free6,943 impressions#4 of its week
JSON Lint Tool to easily format your JSON Code into pretty JSON Format. You can validate your JSON and identify any errors within seconds.
JSON Lint formats, validates, and repairs JSON quickly through a simple paste-and-run interface.
- for
- Developers who need to check and prettify JSON data fast
- pricing
- free
Key features
5 features of JSON Lint
- Validate JSON — Detect syntax errors in JSON instantly.
- Format JSON — Convert minified JSON into a readable, pretty-printed layout.
- Repair JSON — Automatically fix common JSON formatting issues.
- Live Editor — Paste JSON and see validation results in real time.
- Ace Editor Integration — Provides syntax highlighting and editing capabilities.
Use cases
- Debug API responses with malformed JSON
- Prettify configuration files for readability
- Validate webhook payloads before processing
- Repair JSON snippets copied from logs
JSON Lint FAQ
How do I use JSON Lint?+
Paste your JSON into the editor and the tool will automatically validate and format it.
Does it support large JSON files?+
The tool works in the browser and can handle typical JSON sizes; very large files may affect performance.
Can I download the formatted JSON?+
Yes, you can copy, download, or share the formatted output using the provided buttons.
Is there any cost to use JSON Lint?+
The service is free to use with no paid plans mentioned.
Summarized by DevHunt from jsolint.com · Sep 28, 2026. Details may change; check the official site.
