Converter API
Convert Any File via API
30+ formats. PDF, images, documents, spreadsheets and more. One simple POST request. 1 credit per conversion. Credits never expire.
Supported Formats
Convert Between 30+ Formats
Documents, images, spreadsheets, presentations and more.
PDF
PNG
JPEG
WebP
DOCX
DOC
TXT
CSV
XLSX
XLS
HTML
ODT
ODS
RTF
SVG
TIFF
BMP
GIF
PPTX
PPT
EPUB
MD
JSON
XML
PDF Conversion
Convert to/from PDF. DOCX→PDF, PDF→PNG, HTML→PDF and more.
Image Processing
Convert between PNG, JPEG, WebP, BMP, TIFF with quality control.
Documents
DOCX, ODT, RTF, TXT — convert between all major word formats.
Spreadsheets
XLSX, CSV, ODS — transform data formats with full fidelity.
Options
Control quality, DPI, paper size, orientation per request.
API Key Auth
Simple X-API-Key header authentication. Generate keys in portal.
# Convert DOCX → PDF in one command
curl -X POST /api/convert \
-H "X-API-Key: your_key" \
-F "file=@document.docx" \
-F "to=pdf" \
-o output.pdf
# Done in seconds ✓
curl -X POST /api/convert \
-H "X-API-Key: your_key" \
-F "file=@document.docx" \
-F "to=pdf" \
-o output.pdf
# Done in seconds ✓
Pricing
Credit Packs — 1 conversion = 1 credit
Buy conversions in bulk. Credits never expire. Use across all ZeroPhantom APIs.
Starter
$4.99
1,000 Conversions
- $0.005 per conversion
- Credits never expire
- All 30+ formats
- Great for testing
Best Value
Pro
$14.99
5,000 Conversions
- $0.003 per call — save 40%
- Credits never expire
- Priority processing
- Ideal for production
Business
$29.99
15,000 Conversions
- $0.002 per call — save 60%
- Credits never expire
- Lowest cost per call
- Built for scale
Credits only · Never expire · Free UI at /converter · Buy credits →