JSON & Data Formats
JSON and data-format tools here focus on one job each: turning an unreadable payload into something you can inspect, or turning one data format into another without losing structure.
TOOLS IN THIS CATEGORY
01 / LISTJSON Formatter
Format and validate JSON.
FORMATJSON Beautifier
Pretty-print JSON with syntax highlighting.Files stay on your device.
BEAUTIFYJSON Compress & Escape
Compress, escape and convert JSON text.
MINIFYJSON5 to JSON
Validate JSON5 and convert it to standard JSON.
CONVERTJSON Diff
Compare two JSON documents semantically.
COMPAREJSON to YAML
Convert between JSON and YAML in both directions.
CONVERTWHAT YOU CAN DO HERE
02 / OVERVIEWAll six tools in this category are live and run in the browser tab. Nothing is uploaded, so API responses with customer data can be pasted in without leaving your machine.
JSON Beautifier adds indentation and syntax colors for reading, JSON Formatter shows the data as an editable tree, JSON Compress & Escape changes size and escaping, JSON5 to JSON changes syntax dialect, JSON Diff compares two documents, and JSON to YAML changes format entirely. Use the formatter first when you are not sure the input is valid.
- Reading a deeply nested API response before writing a parser for it.
- Finding the exact line where a JSON file stopped being valid.
- Shrinking a JSON payload before pasting it into a ticket or a query parameter.
- Converting a JSON5 config full of comments into the strict JSON a tool expects.
- Checking what changed between two versions of the same document.
- Moving a Kubernetes or CI config between JSON and YAML.
FREQUENTLY ASKED QUESTIONS
03 / FAQIs my JSON uploaded to a server?
No. Parsing, formatting, diffing and conversion all happen in your browser. Nothing is sent, stored or logged.
Which JSON tools are available now?
JSON Formatter, JSON Beautifier, JSON Compress & Escape, JSON5 to JSON, JSON Diff and JSON to YAML are all ready to use.
Do the tools handle very large documents?
They are client-side parsers, so the practical limit is the memory of your own browser tab. Extremely large files can make any browser tab slow, including these pages.