Make your image fit the upload limit.
Choose the maximum size. We test multiple quality and resolution settings locally, then give you the strongest result that fits.
- Exact byte target with a safety margin
- JPG, PNG, HEIC and HEIF input
- No upload, account or watermark
Three steps. Nothing to learn.
- Choose one image.
- Set the website’s maximum KB or MB.
- Review the result and quality risk, then download if it works for you.
What “best” means here
We search multiple JPEG quality and resolution candidates within a 60-second budget. The result is the strongest candidate found under your limit—not a promise of lossless compression or global mathematical optimality.
Read the compression methodology →Questions, answered plainly.
Does my image get uploaded?
No. Decoding, resizing, encoding, and comparison happen in your browser. The image is not sent to our server.
Will the result always be accepted?
The downloaded JPG is kept below your chosen byte limit. A third-party website may also check dimensions, composition, naming, or other rules, so acceptance cannot be guaranteed.
Why can processing take up to 60 seconds?
The tool tests several encoding and resolution candidates instead of stopping at the first small file. Large phone images and slower devices need more time.