Automate your Webp conversion workflow
Explore our API documentation and examples to integrate Png2Webp into your application or workflow.
Easy to integrate
Our API is a simple HTTP interface with various options:
Source images:
Direct uploads or URL reference
Result images:
Image file or JSON-encoded data
Output resolution:
up to 25 megapixels
Output resolution:
Not a developer? There are plenty ready to use tools & Apps by png2webp and our community.
Get started
Our API is a simple HTTP interface with various options:
You’re going to receive 100 API calls for free.
After that your first 5 API calls per day are on us (see pricing)
Use the following code samples to get started quickly
Review the reference docs to adjust any parameters
Want to know more about subscription? see pricing
Sample Code
$ curl -H 'X-API-Key: INSERT_YOUR_API_KEY_HERE' \
-F 'image_file=@/path/to/file.jpg' \
-F 'size=auto' \
-f https://api.png2webp.com/v1.0/convert -o webp-file.webp
Libraries
Get up and running faster with official and third-party libraries.
Not a developer?
There are plenty ready to use tools & Apps by png2webp and our community.
Commandline Tool
Officialby Png2Webp
Ruby Gem
Officialby Png2Webp
PHP/Laravel Library
by Manuel Njiakim
Python: png2webp
by Manuel Njiakim
There are plenty ready to use tools & Apps by png2webp and our community.
Input Formats
We only accept images with the format bellow :
| Formats | Limited size | Example |
|---|---|---|
| PNG | Up to 25 Megapixels | |
| JPG | Up to 25 Megapixels | |
| ZIP | Up to 50 Megapixels |
How to use the ZIP format
This feature is not yet available in stable version. If you need this feature, get in touch
OAuth 2.0
If you want to authenticate users with the click of a button instead of having them enter an API Key, get in touch to try our OAuth 2.0 login.
API Reference
Input Formats
| Input image | Megapixels | Effective Rate Limit |
|---|---|---|
| 625 x 400 | 1 MP | 500 images per minute |
| 1200 x 800 | 1 MP | 500 images per minute |
| 1600 x 1200 | 2 MP | 500 / 2 = 250 images per minute |
| 2500 x 1600 | 4 MP | 500 / 4 = 125 images per minute |
| 4000 x 2500 | 10 MP | 500 / 10 = 50 images per minute |
| 6250 x 4000 | 25 MP | 500 / 25 = 20 images per minute |
Exceedance of rate limits leads to a HTTP status 429 response (no credits charged). Clients can use the following response headers to gracefully handle rate limits:
| Response header | Sample value | Description |
|---|---|---|
| X-RateLimit-Limit | 500 MP | Total rate limit in megapixel images |
| X-RateLimit-Remaining | 499 MP | Remaining rate limit for this minute |
| X-RateLimit-Reset | 1662309450 MP | Unix timestamp when rate limit will reset |
| Retry-After | 59 MP | Seconds until rate limit will reset (only present if rate limit exceeded) |
Higher Rate Limits are available upon request
Exponential backoff
Exponential backoff is an error handling strategy in which a client periodically retries a failed request.
API Changelog
Most recent API updates:
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