Fix Product Feed JSON Errors

Google Merchant / Meta product feed JSON syntax error?

Paste your catalog JSON below — find the broken line, repair trailing commas, bad quotes, and unclosed brackets. Runs in your browser; nothing is uploaded.

For Google Merchant Center, Meta, Shopify, and WooCommerce product feeds when upload or sync fails due to invalid JSON — not server or WordPress routing issues.

Try an example:

Product feed JSON Result

Ready.

FAQ

Google Merchant / Meta product feed JSON syntax error — what now?: Usually bad quotes, a trailing comma, or an unclosed bracket. Paste the feed JSON above, click Validate, read the error line, then Repair. Re-upload to Merchant Center or Meta when valid.
Shopify “Invalid JSON: unexpected token” on product.json?: Often curly quotes or a trailing comma in theme schema or product JSON. Paste here, fix the flagged line, then save back to Shopify or your API payload.
LLM-generated product feed JSON won’t parse?: Models often add trailing commas, smart quotes, or markdown fences. Validate here — common issues are auto-repaired and you see what changed before using the feed on Google or Shopify.
Is my catalog data uploaded?: No. Validation and repair run entirely in your browser.

Common fixes

Trailing comma after the last product field
Smart quotes in title or description
Unclosed { or [ in the variants array
Nested JSON when the platform expects a flat array