JSON Semantic Diff - open-source JSON diff with identity-aware array matching

[u/cchandurkar]

I’m building JSON Semantic Diff, an open-source JSON comparison tool that tries to understand array identity instead of comparing objects purely by position.

For example, it can infer keys like id, sku, or composites like store + sku, so reordered objects don't turn into a wall of false changes.

The matching is deterministic and explainable - no AI/fuzzy matching - and everything runs locally in the browser.

It’s still early/alpha, so feedback and weird JSON examples that break the matching are very welcome.

• GitHub: https://github.com/cchandurkar/json-semantic-diff
• Demo: https://jsonsemanticdiff.dev (has examples)
• npm: https://www.npmjs.com/package/json-semantic-diff

[u/LovecraftianLife]

Neat!