How do I pretty print JSON?

Paste your JSON into Codeprint to display keys, strings, numbers, and booleans in distinct colors. Export it through Print or PDF.

Does it validate JSON?

Codeprint highlights JSON syntax but does not validate it. For validation, use a JSON validator first, then paste the valid JSON here for formatted printing.

Can I print large JSON files?

Yes. Codeprint handles large JSON files with pagination. Use a smaller font size and multi-column layout for very large files.

Does it support JSON with comments (JSONC)?

JSON with comments (JSONC) used in VS Code settings will be highlighted, though comments may not be perfectly colorized since they are not part of standard JSON.

Turn JSON code into a PDF worth printing.

Keep JSON syntax colors, line numbers, and the layout you choose. Preview every page and export the PDF without uploading your code.

Paste your JSON code

data.jsonEDITOR MODE

Code input

Filename

Language

Preview

Loading preview...

Paste code. See it formatted. Export as PDF.

JSON Syntax Highlighting

Keys, string values, numbers, booleans, and null are colorized for clear visual distinction of data structure.

PDF Export

Export formatted JSON as PDF for API documentation and configuration file archives.

Customizable Layout

Adjust font size for deeply nested JSON. Multi-column layout works well for flat JSON arrays.

Line Numbers

Line numbers help reference specific keys and values in large JSON configuration files.

When you’d print JSON

API Documentation

Print JSON request/response examples for API documentation. Include sample payloads in specs.

Config Audits

Print JSON config files for security audits. Review settings, permissions, and environment config.

Data Inspection

Print JSON data dumps for offline analysis. Review large datasets on paper with line numbers.

Debugging

Print API responses for debugging. Annotate JSON output to trace data flow through systems.

How it works

Step 1

Paste Your Code

Paste your JSON code into the editor or type directly. The language is auto-detected from the file extension.

Step 2

Customize Settings

Adjust font size, line numbers, columns, page orientation, and page size to match your needs.

Step 3

Print or Export PDF

Click Print to send to your printer, or PDF to download a formatted document with syntax highlighting preserved.

Why print JSON?

JSON source is easier to review when its structure survives the move from editor to page. Keys, string values, numbers, booleans, and null are colorized for clear visual distinction of data structure. Codeprint keeps indentation and line breaks intact, then applies a restrained syntax palette so keywords, strings, comments, and identifiers remain distinguishable in print.

A paper review creates a different reading rhythm from an IDE. You can see more of the file at once, mark a questionable branch, compare related expressions, and refer back to a precise line without opening the same toolchain. Line numbers help reference specific keys and values in large JSON configuration files.

Export formatted JSON as PDF for API documentation and configuration file archives. Page size, orientation, columns, and type size remain under your control, which matters when the source contains long expressions or dense blocks. It is a practical fit for api documentation, config audits, and technical documentation. Your source stays in your browser throughout the process.

Questions

Other languages

Python JavaScript TypeScript HTML CSS Java C C++C#Go Rust PHP Ruby Swift Kotlin SQL Shell/Bash R Dart Scala