Car Background Removal (Base64)#

Endpoint#

POST /v1.0/car-image-without-background-base64

Base URL: https://api.withoutbg.com

Authentication#

Provide your API key in the request header:

X-API-Key: <your_api_key>

Request#

Content-Type: application/json

Fields#

• image_base64 (string, required) — Input image as a raw Base64 string (no `data:` URI prefix). Supported formats: JPEG, PNG, WebP, AVIF, HEIC, TIFF, BMP, GIF. Maximum decoded size: 20.0 MB.
• include_shadow (boolean, optional) — When true, keep/generate a soft shadow under the car. Reserved for an upcoming model feature; currently ignored.
• translucent_windows (boolean, optional) — When true, treat car windows as translucent rather than opaque. Reserved for an upcoming model feature; currently ignored.

Response#

Success Content-Type: application/json

Body fields#

• input_dimensions (array<integer>, required) — Decoded input size as `[width, height]` (pixels).
• processed_dimensions (array<integer>, required) — Size after server prep downscale (longest-side / megapixel caps) as `[width, height]`. Distinct from model inference resolution (~1024 long side).
• was_downscaled (boolean, required) — True when the input was downscaled during server prep.
• image_type (object, optional) — Optional probabilities for photo vs graphic image-type classes.
• img_without_background_base64 (string, required) — Result image as Base64 PNG (RGBA) with transparent background. Prepend `data:image/png;base64,` to display in a browser.

Errors#

Example (cURL)#

curl -X POST \
  -H "X-API-Key: $WITHOUTBG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"image_base64":"<raw_base64>"}' \
  "https://api.withoutbg.com/v1.0/car-image-without-background-base64"

Related endpoints#

• Car Background Removal (Binary) — POST /v1.0/car-image-without-background