jsonbuddy

Free Online Developer Tools. No Signup Required.

Convert, format, and compare JSON, XML & YAML instantly. Decode JWTs, generate QR codes, and more — all 100% private and free forever. Your data never leaves your browser.

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17 Free Developer Tools

Converters
JSON to XMLConvert JSON objects to well-formed, indented XML.JSON to YAMLTransform JSON data into clean, human-readable YAML.JSON to TextRender JSON as plain text for logs, emails, and reports.XML to JSONParse XML and convert it to structured JSON output.XML to YAMLConvert XML documents directly to YAML format.YAML to JSONParse YAML files and export as valid, formatted JSON.YAML to XMLTransform YAML configuration files into XML documents.
Formatters
JSON FormatterBeautify, minify, and validate JSON with an interactive tree view.XML FormatterPretty-print and validate XML with correct indentation.YAML FormatterFormat and validate YAML with instant error highlighting.
Compare & Diff
JSON DiffSide-by-side JSON comparison with deep structural diff.YAML CompareHighlight additions, removals, and changes between YAML files.XML CompareCompare two XML documents and spot every difference instantly.Text CompareLine-by-line diff for any plain text, code, or config files.
Utilities
JWT DecoderDecode and inspect JWT headers, payloads, and expiry claims.QR Code GeneratorGenerate QR codes from any URL or text. Download as PNG.QR Code ReaderUpload an image to extract and decode the embedded QR text.

Why JSON Buddy?

Private by Design

All processing happens locally in your browser. We never see, store, or transmit your data.

Instant Results

No server round-trips. Tools respond as fast as your browser can compute.

Completely Free

No account, no rate limits, no paywall. Every tool is free forever.

Frequently Asked Questions

Are all JSON Buddy tools completely free?
Yes. Every tool on JSON Buddy is free to use with no account, no rate limits, and no paywall. The site is supported by non-intrusive ads, and all 17 tools remain free forever.
Is my data private when I use these online developer tools?
Absolutely. All processing — including JSON conversion, XML formatting, JWT decoding, and QR code generation — happens entirely in your browser using JavaScript. Your data is never uploaded to or stored on any server.
Do I need to sign up or create an account?
No signup or account is required. Open any tool, paste your data, and get instant results. JSON Buddy requires no registration of any kind.
What formats can I convert with the free JSON converter online?
JSON Buddy supports converting JSON to XML, JSON to YAML, JSON to plain text, XML to JSON, XML to YAML, YAML to JSON, and YAML to XML — all free and instantly in your browser.
Does JSON Buddy work offline?
Once the page loads, the tools work without an internet connection because all computation is client-side JavaScript. There are no API calls to external servers during normal tool use.

Ready to start?

17 free tools, no account needed. Paste your data and get instant results — privately, in your browser.

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