Convert files via HTTP.

HEIC to JPG, one POST away.

Copy-paste ready. Swap fc_live_YOUR_KEY for a key from your dashboard.

curl -X POST https://fireconvertapp.com/api/v1/convert/image \
  -H "Authorization: Bearer fc_live_YOUR_KEY" \
  -F "file=@photo.heic" \
  -F "target=jpeg" \
  -F "quality=85" \
  --output photo.jpg

Image conversion plus PDF merge, split, compress, and to-jpg are available today. More endpoints on the roadmap.

What you get

• Image and PDF in one API

  Image conversion plus PDF merge, split, compress, and to-jpg today. Image resize, image crop, PDF to Word, and DOCX to PDF on the way. Video, audio, and GIF on the roadmap.

• Per-minute rate limits

  Sliding-window, per-key, per-endpoint. Free-tier default 10 req/min; paid 60 req/min. 429 responses include a Retry-After header.

• Zero retention

  Requests are synchronous. Your bytes hit memory, produce an output, and we forget them. No disk, no database, no analytics snooping.

• No ads, no quota-gate-walls

  The same engine behind fireconvertapp.com — no watermarks, no 'upgrade to finish your conversion.' Just your conversion quota and honest error codes.

Every endpoint

All POST, all bearer-authed, all accept multipart/form-data. JSON bodies with file_url / file_base64 also supported.

• POST /api/v1/convert/imageHEIC, WEBP, PNG, JPG, AVIF, TIFF, GIF → any of the above (+ single-page PDF).Available
• POST /api/v1/convert/pdf/mergeCombine multiple PDFs into one. Up to 20 per call.Available
• POST /api/v1/convert/pdf/splitSplit by page ranges like 1-3,5,7-9. Returns a ZIP.Available
• POST /api/v1/convert/pdf/to-jpgRender every page as a JPG, packaged as a ZIP.Available
• POST /api/v1/convert/pdf/compressRe-save with object-stream compression, with optional deep re-encode of embedded images.Available
• POST /api/v1/convert/image/resizePixel or aspect resize with inside / contain / cover / fill.On roadmap
• POST /api/v1/convert/image/cropAspect-ratio or explicit-box crop, auto-centered.On roadmap
• POST /api/v1/convert/pdf/to-wordExtract text into a DOCX.On roadmap
• POST /api/v1/convert/pdf/docx-to-pdfDOCX → PDF for text-first documents.On roadmap

Pricing

API access is included on every paid FireConvertApp plan — from $12.99/mo on Basic (1,500 conversions) up to $29.99/mo on Pro (4,000 conversions, up to 5 GB files).