Validate JSON syntax with pinpoint error locations.
Paste JSON to check syntax. On error, you will get the character position and a helpful message. Optionally prettify valid JSON.
Validate JSON syntax with pinpoint error locations.
{"name":"Alice","age":30}{"name":"Alice", age:30}JSON Validator automatically cleans up indentation, spacing, and line wrapping so diffs stay focused on logic instead of whitespace. Validate JSON syntax with pinpoint error locations.
Apply consistent formatting to legacy files, generated code, or quick prototypes without memorizing style rules. Optional controls for indentation, quotes, and maximum line width ensure the output aligns with any internal guideline.
Prepare pull requests faster by reformatting entire files before review, reduce merge conflicts caused by mixed tab/space styles, and keep shared libraries tidy across teams.
Normalize code that originated from design tools, AI generated snippets, or post-migration scripts so that onboarding engineers can read and extend it immediately.
Paste an example into the editor, tweak the options, and copy the resulting config into your CI pipeline for automated enforcement.
Bookmark this page or preload it in documentation portals so contributors always have a fast, zero-install formatter ready when reviewing snippets.
No. Everything runs inside your browser. Inputs stay in local memory, and nothing is uploaded to external servers.
Formatting only changes whitespace. It never alters runtime behavior, so you can run it before every commit with confidence.
Yes. Adjust the available options, copy the output, and document the exact settings so teammates can reproduce the same results without guessing.