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Deterministic data-format conversion: CSV ↔ JSON ↔ XML ↔ YAML ↔ Excel(xlsx) (any direction; tabular targets need tabular-shaped input — clean error otherwise). 200k-row cap. Output delivery: each produced file ≤10MB comes inline as base64 (files[].file_b64); 10-50MB comes as a one-time download token (files[].download_path, 30min TTL); >50MB total is rejected.
Optional source override for ambiguous text (e.g. YAML without a leading ---); binary formats are always sniffed.
Target format: csv, json, xml, yaml, xlsx.
The input file as base64 (data-URI prefix tolerated). Max 25MB. Provide file_b64 OR file_url. Multipart upload also works: POST the file as the 'file' form field.
https URL of the input file — fetched server-side through the proxy pool; private/internal/metadata addresses are SSRF-blocked. Max 25MB.
Optional original filename — used only as a hint (e.g. .md detection); the real format is always sniffed from magic bytes.
CSV delimiter override (default: sniffed).
Excel source: sheet name (default: first).
curl -X POST https://api.reefapi.com/file-convert/v1/data_convert \
-H "x-api-key: $REEF_KEY" \
-H "content-type: application/json" \
-d '{"file_b64":"bmFtZSxjcmVkaXRzLGNhdGVnb3J5CnBkZl9tZXJnZSwxLHBkZgppbWFnZV9vcHRpbWl6ZSwyLGltYWdlCm9jcl9wZGYsMixvY3IK","to":"json"}'Hit Send to run this endpoint live.