Does the PDF include syntax highlighting?

Yes. Keys, strings, numbers, booleans and null are each rendered in a different color, in your choice of a light or dark theme — the same kind of coloring a code editor uses.

What happens if my JSON is invalid?

The editor flags it before you convert, showing the error message with the line and column where parsing failed. In a batch, invalid files are skipped and listed in the result so the valid ones still convert.

Are nested objects and arrays indented properly?

Yes. The JSON is pretty-printed with two-space indentation per level, and optional indent guides draw a vertical line at each nesting level so deep structures stay readable.

How are large JSON files handled?

The output is paginated automatically across as many pages as needed. Lines longer than the page width wrap at token boundaries, with continuation lines indented so nothing is cut off.

Can I convert several JSON files at once?

Yes — import up to ten .json files. Each becomes its own highlighted PDF with the same display settings, and the batch downloads as a single zip file.

Can I paste JSON instead of uploading a file?

Yes. Paste directly into the editor — it highlights as you type and validates the JSON live. Imported files can also be edited before converting.

Is my JSON uploaded to a server?

No. Parsing, highlighting and PDF generation all run locally in your browser. Your data never leaves your device.

Does it work on my phone?

Yes. The editor and settings work in any modern mobile browser, and the settings live in a bottom sheet you can reach with one thumb.

แปลง JSON เป็น PDF

แปลงข้อมูล JSON เป็น PDF ที่จัดรูปแบบสวยงามพร้อมไฮไลต์ไวยากรณ์

1. Add JSON

Paste JSON or import up to 10 .json files. Everything stays on your device.

2. Configure display

Pick a light or dark theme, font size, line numbers and indent guides.

3. Download

Get a highlighted, paginated PDF — one per file, zipped when you convert several.

About JSON to PDF

Readable JSON, On Paper

JSON is built for machines. The moment you need to share an API response with a colleague, archive a config file, or attach a data export to a report, a wall of unformatted braces stops being useful. This tool parses your JSON, pretty-prints it with proper nesting indentation, and renders it to a PDF with real syntax highlighting — keys, strings, numbers, booleans and null each get their own color, the way your editor shows them.

Paste JSON straight into the editor or import up to ten .json files at once. The editor highlights as you type and flags invalid JSON with the exact line and column, so you fix the input before converting instead of discovering the problem in the output.

What You Can Control

The output is a code-style document, so the options are about how that code reads on the page.

Light and Dark Themes

Choose a light theme for printing or a dark theme that matches your editor for screen reading.

Line Numbers

A numbered gutter makes it easy to reference a specific line when you discuss the document with someone else.

Indent Guides

Thin vertical guides trace each nesting level, so deeply nested objects stay readable across page breaks.

Batch Conversion

Import up to ten .json files and convert them all with the same settings — the results arrive as a single zip.

Built for API Responses, Configs and Exports

Documenting an endpoint? Paste the response body and get a highlighted PDF you can drop into a spec or email. Auditing a deployment? Convert the JSON config to a paginated document with line numbers you can cite in a review. Collecting data exports? Batch-convert a folder of .json files into shareable PDFs in one pass.

Large files are paginated automatically — long lines wrap at token boundaries instead of spilling off the page, and continuation lines are indented so the structure stays visible.

How It Compares

Plenty of tools turn JSON into a table or plain text. This one keeps the code view.

ฟีเจอร์	Plain text converters	Table converters
Syntax highlighting
Nested indentation preserved
Line numbers and indent guides
Invalid JSON flagged with position
Batch up to 10 files	Varies	Varies
No file upload required

Your Data Never Leaves Your Device

JSON files tend to carry exactly the data you should not hand to a stranger — API payloads with customer records, configs with internal hostnames, exports with credentials someone forgot to strip. Most online converters upload your file to a server to process it.

OxygenPDF parses and renders everything in your browser. Nothing is sent anywhere, and closing the tab wipes the data. If your JSON is covered by an NDA, GDPR, or plain common sense, client-side conversion is the safe default.