Drop in a PNG, JPEG or WebP file. The format never changes — PNG stays PNG, JPEG stays JPEG, WebP stays WebP.
Compress Images Online — PNG, JPEG & WebP
Compress PNG, JPEG and WebP images without changing the format. Lossless-first optimization, optional target file size with the aspect ratio locked. Free tier available.
Click to upload or drag and drop
Accepts PNG,JPG,JPEG,WEBP
Result
How to Convert Original to Compressed
1
Upload your image
2
Choose a target size (optional)
Leave the target empty for pure lossless optimization, or set a kilobyte budget and the image is downscaled with its aspect ratio locked until it fits.
3
Download the result
You get the smallest file the engine could produce — never larger than your original. Metadata is stripped, while colors and rotation are preserved.
Why compress images?
Image weight is the single biggest driver of page load time. Shrinking a hero image from 2 MB to 200 KB saves more transfer than most code optimizations combined — and faster pages rank better and convert better.
Lossless-first matters. Most compressors immediately re-encode at a lower quality, degrading every image whether it needed it or not. Enconvert first strips metadata and re-encodes with the strongest lossless settings for the format — PNG and lossless WebP stay pixel-identical, and JPEG keeps its original quantization tables — and only reduces dimensions when you set a hard size budget.
The format never changes. PNG in, PNG out — no surprise conversions that break transparency, and no broken pipelines that expect a specific file extension. Files whose content doesn't match their extension are rejected instead of silently converted.
Original vs Compressed
| Feature | Original | Compressed |
|---|---|---|
| File size | As uploaded | Never larger — often 20-80% smaller |
| Pixel data | Unchanged | Identical without a target; proportionally downscaled only when a target requires it |
| Metadata | EXIF, XMP and text chunks included | Stripped — ICC color profile and orientation flag kept |
| Format | PNG / JPEG / WebP | Same format — never converted |
| Dimensions | Original | Original, unless a size budget forces an aspect-ratio-locked downscale |
Frequently Asked Questions
Not unless you ask for it. Without a target size, compression is strictly lossless-first: metadata is stripped and the image is re-encoded with the strongest lossless settings for its format — PNG and lossless WebP stay pixel-identical, and JPEG keeps its original quantization tables. Dimensions are only reduced when you set a target file size the lossless stage can't reach.
Set the target size in kilobytes — for example 200 for 200 KB. Lossless optimization runs first; if the file is still over budget, the image is downscaled with the aspect ratio locked until it fits. If the target is unreachable even at the minimum scale, you get the smallest achievable file instead of an error.
Never. The format always stays the same: PNG in, PNG out. Files whose content doesn't match their extension are rejected rather than silently converted, so transparency and downstream pipelines are safe.
EXIF, XMP and PNG text chunks are removed, which often saves space by itself and protects your privacy (camera details, GPS location). Two things are deliberately kept: the ICC color profile, so colors don't shift, and the EXIF orientation flag, so rotated photos still display correctly.
No. APNG and animated WebP files are rejected with a clear error rather than being silently flattened to a single frame. Static PNG, JPEG and WebP images are fully supported.
Integrate via API
Automate Original to Compressed conversions in your application with just a few lines of code.
import requests
url = "https://api.enconvert.com/v1/convert/compress-image"
headers = {"X-API-Key": "sk_YOUR_SECRET_KEY"}
with open("input_file", "rb") as f:
response = requests.post(url, headers=headers, files={"file": f})
with open("output_file", "wb") as f:
f.write(response.content)