Compare JSON with structural path diffs plus a line view of beautified output. Beautify, minify, swap sides, and ignore whitespace. Up to 50.0 MB per file. Large files open in safe mode (no live editor) so the browser stays responsive.
Upload JSON files (optional, max 2)
Drag and drop files here, or click to browse
Up to 50.0 MB per file. Large files open in safe mode (no live editor) so the browser stays responsive.
Left JSON
Right JSON
About Compare JSON
Compare two JSON files with structural and line-level diff. Beautify or minify JSON before comparing. Upload up to 10 MB per file. Runs in your browser.
JSON compare helps debug API responses, config changes, and data migrations without installing a desktop diff tool.
How to compare json
- Paste or upload two JSON files to Compare JSON.
- Optionally beautify or minify for clearer diff.
- Review structural and line differences.
Frequently asked questions
- Is Compare JSON free on OyoPdf?
- Yes. Compare JSON is free with no account required for standard use.
- Are my files uploaded to your servers?
- This tool runs in your browser on your device. Your PDF is not uploaded to our servers for processing.
- Does it validate JSON before comparing?
- Invalid JSON is highlighted so you can fix syntax before running the diff.
- Is Compare JSON free?
- Yes. Compare JSON on OyoPdf is free for everyday use with no account required.
- Are my files private?
- OyoPdf is privacy-first. Processing runs in your browser whenever possible so files stay on your device.
- What file size is supported?
- Most tools support files up to 20 MB per upload.